edson mud pump manufacturer

In a fine example of "Yankee Ingenuity", Jacob Edson invented the diaphragm pump, and in 1859 established The Edson Corporation in Boston, Massachusetts to manufacture and sell his pump. He continued to invent a wide range of marine products which resulted in significant growth; and in the mid 1930"s the company moved to expanded facilities in New Bedford, MA. The Edson Corporation is now recognized as one of the oldest continuously operating businesses in Massachusetts and the United States.

Often used at marina"s instead of a macerator. For portable toilet and sewer contractors on a honey wagon. Edson Portable emergency manual bilge pump kits.

Edson Diaphragm Pumps are the most popular of all Edson Pumps due to their simplicity, reliability and convenience. They are an excellent choice for groundwater remediation, containment transfers, dewatering, oil and water separations, marina and ...

Edson is a manufacturer of marine sanitation devices, marine pumps, industrial pumps, and commerical pumps in the United States since 1859. We offer pump out systems for marinas, boat yards, yacht clubs, and other facilities using diaphragm, double diaphragm, peristaltic, and vacuum pump technology, with fiberglass or stainless steel enclosures, with a variety of accessories including hose, fittings, and valves. Marine sewer systems and septic systems are offered in fixed (stationary) installations or mobile septic waste containment systems. Military, commercial, industrial, municipal, and environmental applications, such as groundwater remediation, oil spill clean-up, and dewatering, are also an ideal fit Edson"s range of pumps and pump accessories.

Edson Gasoline Powered Diaphragm Pumps are designed for tough jobs and remote and mobile applications such as: dewatering excavation sites, municipal and utility vehicles, waste oil collection, oil spill clean-up, HAZMAT pumping, sewage collection, well monitoring, mill pond dewatering, farm waste pumping, and marine light dredging. They are used for the collection and transfer of waste liquids and pumping liquids with suspended solids. They are capable of handling liquids with large suspended solids without clogging, to prime from dry starts, and to run dry. They have the added feature of low emulsive, non sheering pumping action. These basic performance features and Edson’s 140 year history of manufacturing quality products have made our pumps the choice for cleaning up our environment and controlling the disposal of liquid waste. Evident by the list below the pumps can be applied to a very broad range of applications including the requirements for dewatering, oil and water separations, marina and campground sewage collection, tank, sump and drum transfers and the collection and transfer of abrasives slurries.

1859 in Boston, Massachusetts - Jacob Edson invented the Diaphragm Pump for the Gloucester Schooner Fishing Fleet, and in order to sell these pumps he started what today is known as The Edson Corporation. He continued to invent a wide range of marine products that most mariners take for granted today, such as deck rails, cabin vents, and steering systems. This resulted in significant growth for the company and in the mid-1930s the company moved to expanded facilities in New Bedford, MA.

Today, Edson carries on the American manufacturing tradition of pouring molten bronze to polishing stainless welds. With a strong passion for high quality we take pride in manufacturing all of our product lines. From our marine products for both powerboats and sailboats to our marine sanitation devices, marine pumps, industrial pumps, and commercial pumps Edson is dedicated to delivering products that exceed expectations.

For over 160 years, Edson has continuously manufactured all of these products in Massachusetts. Edson is one of Massachusetts, New England’s, and the United States" oldest, continuously operating companies, a claim only a handful of others can make.

Spare Diaphragms for Any Pump Make. Wastecorp"s replacement diaphragms are available for almost any make or model of diaphragm pump including Mud Sucker pumps. Our diaphragms are offered in two styles: rubber / fabric reinforced or thermoplastic (TPE).

Wastecorp"s replacement diaphragms are available for almost any make or model of diaphragm pump including Mud Sucker pumps. Our diaphragms are offered in two styles: rubber / fabric reinforced or thermoplastic (TPE). Rubber diaphragms are designed for municipal slurry, general industrial applications food processing, marine and campground waste, construction and more.

TPE diaphragms are designed for oil field, oil sludge, biodiesel applications, construction and more abrasive materials. Wastecorp diaphragms offer a combination of performance and economic benefits. These products have superb flex fatigue resistance, abrasion resistance and temperature resistance. Increased flex life results in less downtime, lower maintenance costs lower replacement costs for the pump user.

Replacement diaphragms may fit Wilden, Mud Sucker, Marlow Mud Hog, Mud Hog 302, Wastecorp, AMT, ABS Diaphragm Pumps, Multiquip, Bosworth, Edson, Graco, Sandpiper, Husky, Keco, Tsurumi, Warren Rupp, CH&E, Homelite and other diaphragm pump makes. Select a rubber or TPE style replacement diaphragm for your diaphragm pump

Editor"s Note: This is the second of five parts of our feature, The History of Pumps. This timeline was developed through research, credible sources and the knowledge of friends in the industry, The history of pumps is long and illustrious. This account represents highlights of some of the major historical and technological developments. We welcome your contributions.

200 BC Greek inventor and mathematician Ctesibius invents the water organ, an air pump with valves on the bottom, a tank of water in between them and a row of pipes on top. This is the principal design that is now known as the reciprocating pump.

200 BC Archimedean screw pump is designed by Archimedes is considered one of the greatest inventions of all time and is still in use today for pumping liquids and granulated solids in both the industrialized world and in the third world—where it is a preferred way to irrigate agricultural fields without electrical pumps.

1475 According to Reti, the Brazilian soldier and historian of science, the first machine that could be characterized as a centrifugal pump was a mud lifting machine that appeared in a treatise by the Italian Renaissance engineer Francesco di Giorgio Martini.

1588 Sliding vane water pump technology is described by Italian engineer Agostino Ramelli in his book “The Diverse and Artifactitious Machines of Captain Agostino Ramelli,” which also included other pump and engine designs.

1636 Pappenheim, a German engineer, invents the double deep-toothed rotary gear pump, which is still used to lubricate engines. This gear pump made it possible to dispense with the reciprocating slide valves used by Ramelli. Pappenheim drove his machine by an overshot water wheel set in motion by a stream and was used to feed water fountains.  The emperor Ferdinand II granted him a “privilege” - the equivalent of a patent - in respect of this invention.

1675 Sir Samuel Moreland—an English academic, diplomat, spy, inventor and mathematician—patents the packed plunger pump, capable of raising great quantities of water with far less proportion of strength than a chain or other pump. The piston had a leather seal. Moreland"s pump may have been the first use of a piston rod and stuffing box (packed in a cylinder) to displace water.

1790 Briton Thomas Simpson harnesses steam power to pumping engines for municipal water applications and founds the London company Simpson and Thompson Co. (predecessor to Worthington Simpson).

1845 Henry R. Worthington invents the first direct-acting steam pumping engine. Worthington Pump designed its first products to power canal boats and U.S. naval vessels. Worthington later pioneered pump designs for boiler feed, oil pipeline and hydro-electric applications.

1851 John Gwynne files his first centrifugal pump patent. His early pumps were used primarily for land drainage, and many can still be seen today in pump house museums. They were usually powered by Gwynnes" steam engines. By the end of the 19th century, Gwynne was producing pumps of all sizes to cover all industrial applications, from small electric pumps to those rated at 1,000 tons per minute. His company had also begun to produce scientific pumps, e.g., porcelain pumps for chemical works. In the 1930s they were producing almost 1,000 different models.

1860 Adam Cameron founds the Cameron Steam Pump Works, and becomes another pioneer in reciprocating steam pump engines. Like Worthington, Cameron"s first products were used to power merchant marine and U.S. naval vessels. Cameron pumps were later applied in water resources, oil pipeline and refining and boiler feed.

1886 Jens Nielsen, founder of Viking Pump Company, invents the internal gear pumping principal while designing a pump to remove excess water that was seeping into his limestone quarry from a nearby creek.

1886 United Centrifugal Pumps is incorporated. It becomes the world"s foremost supplier of high-pressure crude oil and refined product pipeline pumps.

1899 Robert Blackmer invents rotary vane pump technology, a pump design that was an important departure from the old gear principle and predecessor to today"s sliding vane pumps.

1902 Aldrich Pump Company begins manufacturing the world"s first line of reciprocating positive displacement pumps for steel mills and mine dewatering.

1908 Hayward Tyler creates its first electric motor for use under water and develops the wet stator motor for use as a boiler circulation glandless motor-pump.

1911 Jens Nielsen builds the first internal gear pump, founding the Viking Pump Company. The Viking Rotary “Gear-Within-A-Gear” pump (the first of its kind) is placed on the market.

1912 Durion, a universally corrosion-resistant material, is invented by the Duriron Castings Company (later known as Durco Pump) and is applied to process equipment.

1915 Albert Baldwin Wood invents the Wood trash pump. Wood spearheads the reclamation from swamp and the efforts to develop much of the land now occupied by the city of New Orleans. Some of Wood"s pumps have been in continuous use for more than 80 years without need of repairs. New ones continue to be built from his designs.

1916 While Armais Sergeevich Arutunoff first invented submersible pumps in Russia in 1916, their use in the United States did not begin until the 1950s.  Arutunoff first designed his pump for use in ships, water wells and mines. He altered the design to work in oil wells. Thanks to further refinements to Arutunoff"s design, there are more types of submersible pumps, allowing use in other applications such as pumping drinking water, creating fountains and pumping wastewater.

1921 Harry LaBour founds LaBour Pump Company. A pioneer in the development of pumps for the chemical industry, LaBour developed corrosion-resistant alloys to incorporate into his pumps. Until his time, sulfuric acid was always pumped with lead pumps, the only known material that could handle certain concentrations of the acid.

1921 Jeumont-Schneider begins manufacturing water and slurry pumps in Jeumont, France. It later develops solids-handling pumps and segmental ring section multistage pumps.

1924 Durco Pump introduces the world"s first pump specifically designed for chemical processing. It would go on to establish undisputed global leadership in ANSI pump design.

1926 O.H. Dorer receives a patent for the first inducer, which reduces the required NPSH. Inducers did not become incorporated into standard pump lines until the 1960s.

1929 Pleuger incorporates in Berlin, Germany. Its first offerings are submersible motor pumps for dewatering in the construction of underground railways and subways. Pleuger pioneers the first successful application of submersible motor pumps in offshore service.

1929 Stork Pompen produces the first concrete volute pump for drainage, integrating the pump housing in the civil construction of the pumping station.

1930 While inventing a compressor for jet engines, aviation pioneer René Moineau discovers that this principle could also work as a pumping system.The University of Paris awarded Moineau a doctorate of science for his thesis on “the new capsulism.” His pioneering dissertation laid the groundwork for the progressing cavity pump.

1933 The original version of the Bush Pump is designed as a closed-top cylinder pump. In 1960 the design was modernized. The base of the well was from then on bolted to the well casing and got its current name, The Zimbabwe Bush Pump, the National Standard for hand pumps in Zimbabwe. After Zimbabwe"s independence in 1980, the government creates its own modernized version of the pump, B-type Zimbabwe Bush Pump. The pump is today regarded as a national treasure. In 1997, it was pictured on a postal stamp.

1933 J.C. Gorman and Herb Rupp introduce a pump with a “non-clogging” feature. It outperforms any other self-priming centrifugal pump previously invented. The company Gorman-Rupp is established.

1936 Robert Sheen invents the metering pump. The core of his invention was a method of controlled volume that was inherent to the pump. The first pumps were assembled in the basement of his father, Milton Roy Sheen"s, home, where the initial patterns for castings were made.

1937-1939 Smith Precision Products Company (Smith Pumps) designs three pumps, two of which (models 300 and 200) were specifically designed for LP-gas transfer.

1939 Dorr-Oliver Pump Company develops the Oliver Diaphragm Slurry pump for slurry transfer. Originally designed for mining slurry transfer with their associated acids, it developed into a Primary Sludge Underflow Pump for the wastewater industry starting in the 1970s after the Clean Water Act.

1940 Reuben Smith, of Smith Precision Products Company (Smith Pumps), receives the first approval for an LP-gas pump from the California Industrial Accident Commission. This was for the model 4X pump and the approval was a "suitable for use" certificate.

1942 The Gorman-Rupp team creates the first commercially available solids-handling trash pump to respond to the contractor"s need for a pump to withstand the considerable rigors of pumping out trash-laden septic tanks, cesspools and outhouses.

1944 During World War II, Goulds extra-quiet trim pumps are installed in every U.S. Navy submarine. That year, 157 Goulds men went to war and 157 women took their places on the Goulds manufacturing floor. Goulds earned the prestigious Army-Navy “E” Award that year for outstanding production of war materials.

1947 Flygt"s Sixten Englesson, a master of engineering, develops a prototype for the first submersible drainage pump, which is later known as the “parrot cage,” or B-pump, used in mining for construction.

1948 Smith Precision Products Company receives the patent for the first mechanical seal supplied for liquefied gas transfer pumps. It was first put into production in 1947.

1950  Vanton develops the Flex-i-liner sealless self-priming rotary pump which handles corrosive, abrasive and viscous fluids as well as those that must be transferred free of product contamination.

1954 Smith Precision Products Company (Smith Pumps) begins working with the Underwriters Laboratories to develop their first Standard for liquefied gas pumps, UL-51, which is still in use today.

In 1955, Jim Wilden invented air-operated double-diaphragm pump technology. It had the right air valve and diaphragms needed and was tough and versatile enough to meet the stringent demands of the mining and heavy-construction industries. During the 1980s, Wilden introduced plastic AODD pumps that have the ability to stand up to the harsh operating conditions and corrosive media transferred throughout the global chemical market. Photo courtest of Wilden.

1960s New lines of industrial pumps are developed by Goulds Pumps, including large double suction pumps, higher pressure pumps and non-metallic pumps. In home water systems, the jet water system is improved and a complete line of submersible pumps is completed.

1965 Warren Rupp"s heavy-duty, diverse AODD pump is introduced to the industrial market to address the vigorous demands of the steel mills and other industrial market applications.

Below: Marvin and Kathryn Summerfield founded Cascade Pump Company in 1948. They are pictured here at an industry tradeshow in the early 1950s. Photo courtesy of Cascade Pump Company.

1968 The ownership of Stenberg-Flygt AB is transferred to the American multinational enterprise ITT (International Telephone & Telegraph Corporation). Prior to this transfer, Stenberg-Flygt AB, AB Flygts Pumpar and Flygt International AB are consolidated as a single company.

1980s Gorman-Rupp unveils the nutating pump, a special purpose small pump used in health care applications; additional energy-efficient, self-priming centrifugal pumps; a series of lightweight portable pumps and high-pressure pumps with the first digital-control panels.

1985 Sims manufactures the first structural composite pump, all Simsite Vertical Pit Pump. Sims later won the Innovative Product Award for these products in 1990.

In 1933, J.C. Gorman and Herb Rupp introduced a pump which had a "non-clogging" feature. Their competitors claimed the pump would not work in a savage public awareness campaign to discredit the new design, which resulted in about $100,00 worth of "free advertising." At least one customer was willing to try it. National Ice Company purchased the first pump, and the company Gorman-Rupp was established. Photo courtesy of Gorman-Rupp Company.

1994 Two new major products are introduced by Goulds Pumps, the Industrial Model 3298 Magnetic Drive Pump and the Water Technologies Model GS “Global Submersible.”

1994 Sims receives the honor of approval from the United States Navy for composite centrifugal pump intervals. Simsite was tested and qualified for centrifugal pump replacement parts and was the first composite to be certified.

1994 Baha Abulnaga invents the slurry and froth pump with  a split vane impeller. The split impeller helps to reduce recirculation in slurry pumps by dividing the space between the main vanes without reducing the passageway at the narrowest point, which is the eye of the impeller. In froth pumps, it helps to break up air bubbles that form and tend to block the flow.

1995 Sims manufactures the largest structural composite pumps in the world - two Simsite vertical turbine pumps for Potomac Electric Power Company. They are 40 feet long and 3 feet in diameter.

2006 Sims manufactures the largest structural composite centrifugal impeller in the world. This huge impeller was installed in a cooling tower pump for Puerto Rican Electrical Power Company. It is 50 inches in diameter and consumes 2,000 horsepower.

MARINE STEERING SYSTEMS STEERING W WELS AND BILGE PUMPS A COMPLETE MANUALTHE EDSON CORP 460 INDUSTRIAL PK RD NEW BEDFORD MA 02745 TEL 617 Cockpit Planning 4243 AutoPilot Planning 4041 AutoPilot Rapid Drive 41 Self Bearngs Aligning 10 Binocular Holders 29 Brake Pedestal 29 Brake Rack Pinion Worm 9 Bulkhead Steerers 1416 Cables Engine Controls 34 Chain 25 Chain Idlers 17 Clevises 2 734 Compasses 52 Compass Covers 2 952 Compass Pedestals 10 Couplings Shaft 10 Data Sheets 53 Engine Controls 3435 Glass Holders 3 1 Guards 28 Hydraulic Adapter Kits 18 Idlers 1722 Installation AutoPilot 4041 Installation Pedestals 4 650 Installation PullPul1 3639 Installation Rack Pinion 78 Installation Worm 1213 Instrument Housings 3233 Maintenance Pedestal 51 Maintenance PullPull 38 51INDEX BY Rack Pinion 9 Maintenance Worm 13 MidShip Cockpit Planning 44 45 Offshore Quadrant Idler 17 Pedestals 2 021 PullPull Steering 3639 PushPull Cables 34 Pumps 5456 Pump Accessories 56 Quadrants 172627 Rack and Pinion 6 9 Radial Drive 23 Seats 30 Sheaves Chain 17 Sheaves Wire Rope 24 Sheave Bracket 22 Stuffing Boxes 27 Sprockets 16 Tables 303 1 Tiller Arms 27 Umbrellas 28 Universals 10 Wire Rope 25 Wheel Adapters 4 Wheel Covers 29 Wheel Hub 2 Wheels Steering 24 Worm Steerers 1113 Worm Steerers Accessories 10LETTER TO OUR CUSTOMERSDear Friends Edson5 newest Catalog represents all the latest developments from our 122years o f designing and pumps and marine steering systems We owe a deep gratitude to not only our staffhere at Edson but to you who have contributed many excellent suggestions and comments The corporation was founded in 1859 by Jacob Edson who lived in the Boston area and invented the diaphragm pump Other early products produced by Edson include deck hardware such as anchor and cargo winches portholes galvanized sheet metal pumps and worm steering systems Later on Edson produced the Geared Quadrant Steerer that was used on virtually all early catboats A product now out o f this catalog but even though first produced in 1895 we can still furnish spare parts The large worm steerers were favored for the large schooners o f the early 19005 Among them were King George Vs Willhem5 MeteorIII and many many others Edson takes great pride in the development o f new products and new ideas and the catalog 15 new steering and pump products all designed to broaden the Edson specialty o f steerers and pumps The Edson Corporation is committed to bringing you the finest in quality products and to continually add to our line and to give you the very best in Suddenand great deal of leg room for helmsmankhead Steerers and two 36 Elkhide Covere inless Steel Destroyer Wheels THE EDSON CORPORATION LIMITED t aAn Edson Pedestal in a beamy catboat is a ble the traditional with the modem using Fig Steerer Fig 644SE Wheel Elkhide Cover and 708Engine ControI II sorts of fun activion Fig 603C30 Teakwheel withTeak up a fiberglass cockpit and gives the of personality Note the handy teak a sandwich ora drinkA 6448 28 Stainless Steel Wheel and an Edson Ffg a20 Bridge Deck Steerer mounted behind the traveler offers the helmsman his own aft steerina oosition for better visibilityOne of the many features of the Rack and Pinion Ffg 346 is the comfortable steering position using a h a 6448 24 wheel on a raised seat for etter visibility over the cabin topcombination Here can bkseen a custom windtable or 4 glasses or a plateThe Edson Corporation Edsonwarrants to the original consumer purchaser of this product that it is free from defects in materials and 7 workmanship Edsons responsibility is limited to repair or at Edsons election replacement of any defective product and does not include any charges for removal reinstallation or incidental or consequential damages Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you Expiration This Warranty and any implied warranties shall expire one 1 year from the date of purchase provided however that if any product is used for any commercial activity this warranty shall expire ninety 90days from date of purchase Some states do not allow limitations on how long an implied Warranty lasts so the above limitation may not apply to you Exceptions The above warranty does not apply to metal finishes or coatings to a product not installed or maintained following Edsons instructions damaged by casualty or improper use repaired or modified by other than Edson personnel installed in a vessel or manner judged by Edson to be an inappropriate application o f its product or used with other products incompatible with the Edson product or which adversely affectits performance or durability Claim Procedure 1 Immediately upon purchase complete and mail to Edson the Owner Information Card accompanying Edsons equipment i f any 2 Immediately upon discovery of any apparent defect notify your vendor the builder of your boat or Edson describing such defect 3 the Vendor boatbuilder or Edson shall make a preliminary determination as to whether a warranty claim is justified and i f so 4upon request Edson shall authorize return of the product NO product shall be returned until authorized by Edson 5After such authorization return the product freight prepaid with proof of purchase if no owner information card has been filed with Edson to r The Edson Corporation 460 Industrial Park Rd New Bedford MA 1 0 2 7 4 5 6I f found defective Edson shall repair or replace the product and return it at Edsonir expense if destination is within continental USA or i f not or i f special freight required at owners expense Other Rights This Warranty gives you specific legal rights and you may also have other rights which vary from State to StateNo Page 100 57INDEX BY FIG NUMBER Fig Fig No Page No Page No PageFig 420 21 671 56Fig 743 24No Page 812 31460 Industrial Pk Rd Tel 617 9959711 The Edson Corporation New Bedford MA 02745 Telex 951337Printed in USA10820MQ Copyright 1980CRAFTED WHEELSThese beautifully crafted wheels will give years of service and pleasure to the owner who wants the best workmanship on his yacht work boat or fishing boat These are not mass production wheels but are all hand made from throroughly seasoned stock carefully selected for matching grain and color Rims and felloes are rigidly secured by brass fastening capped with holly plugs Each spoke is hand fitted so the wheel cannot loosen at the hub an important feature not found on production wheelsOverall diameter wheel sizes Inches 1cm 201508 221558 241609 261660 281711 301762 321812 341861 361914 381990 4011016 4211066 Teak Rim Fig 687 Teak Yacht Wheel Fig 601C 6 lbs127k 8 lbsl36k 19 lbs186k 16 IbsR2k 111 Ibsl5k 20 ibsl9k 20 Ibsl9k 22 IbsllOk 25 Ibslll3k 23 lbl105I4 LIDESTROYE P WHEELSThe most popular of all Edson Steering Wheels was originated by Edson and is a registered Trade Mark of this Corporation Edson offers four models including the stainless steel wheel the vinyl coated wheel the leather covered stainless steel wheel and the teak rim wheel Being smooth they do not catch clothing and with their lightness are very sensitive and eliminate the flywheel effect of the heavier wheels With the Fig 698 wheel adapter and our ability to manufacture virtually all specials these wheels are adaptable to most all makes of steerers Wheel sizes 18 to 40 are six spoke wheels 44 to 72 and larger are 8 spoke Larger sizes are available upon Steel Wheel Sizes lncheslcm Fig 644s 5 lbs123k 181457 5 lbsl23k 201508 5 lbsl23k 221558 6 lbs127k 241609 6 lbsl27k 26166 7 IbsI3l k 281711 8 lbs136k 301762 9 lbsl4l k 321812 3485 10 lbs145k 361914 38196 Vinyl Coated Fig 644V 5 lbsl23k 8 lbsl36k 7 Ibsl3l k 9 lbsl4l k 8 lbs136k on request 10 lbs145k 11 lbs149kFIG 601 Teak WheelsTeak Yacht Wheel with teak rim installed Fig 603 6 Spoke 7 1b132 9 1b141 6 Spoke 6 Spoke 6 Spoke 8 Spoke17 lbs177kITeak Rim 6 Bronze Fig 644BIBronze w l Teak Handle Fig 602B126 Ibsll l7kI1428 lb11311Note Unless otherwise specified all wheels will be furnished with11254cm bore size 23186cm hub length and approximately 2 weeks lead time 119cm key sizeNote These handcrafted wheels are made for each specific order allowTeak Yacht Wheels Have a highly polished FIG 601 603 chrome bronze hub Fastenings are plugged with handsome holly bungs The Fig 601 teak wheels are standard spoked wheels and the Fig 603 teak wheels come with a laminated 1 inch diameter teak rim installed FIG 687 Teak Rims An all teak laminated rim usually factory installed on Edson Wheels but available for The rims are approximately 1 1254cm in diameter and will add a total of 25cm to the overall wheel diameter With the rim you have the warmth of wood and a nonsnagging smooth wheel On an existing wheel we must know the outside diameter of the spokes Rims supplied in 5 sizes shown in above chart All rims are supplied unvarnished FIG 602 Bronze Spoke Wheel with Teak Handles For those who prefer tradition Edson offers hand cast bronze wheels with teak handles These wheels are not mass produced and the surfaces are subject to variations See chart on page 3 FlG667 Wheel Hubs For those who prefer to make their own mahogany or teak wheel Edson will provide the polished bronze or chrome bronze hub All wheel hubs will be furnished with a 1 1254cm bore 23sU603cmhub length and 1 h 191cm key size unless otherwise specified For 20 through 26 wheels spokes require 1 318cm square wood stock and for all larger sizes 28 through 42 spokes require wood stockBronze Hub Chrome Hub Fig 667C Fig 6678SlZE 2 Recommended Hub Size For Wheels 20 lhru 26 SlZE 4 Recommended Hub Size For Wheels 28 lhru 34 SlZE 6 Recommended Hub Size For Wheels 36 thru 421118 Ibsl8lk 28 lbs1126k Note Wheels are all nominal sizes 31 lbs1139k and may vary slightly in diameter 601152 641162 33 Ibsll48k I I I 721181 35 lbs1157k Note All wheel will be furnished with 1254mm bore size 26cm hub length and 1635mm key size unless otherwise 602 Bronze Spoke Wheel with Teak HandlesHub No of OD Spokes4 1bs118k4 Ibsll8k466 lbs127k6 lbs127k5489 Ibsl4lk9 lbsl4lk68Fig 667 Wheel HubsFIG 6448 Stainless Steel Wheel The yachtsmans favorite the stainless wheel has a gleaming rim of ovalized 1 tubing with solid stainless spokes for sizes 18 through 48 and hollow stainless spokes for sizes 54 through 72 These wheels are fabricated from the finest stainless steel they are smooth highly polished and lightweight FIG 644V Vinyl Coated Aluminum Wheel A smooth grey vinyl is coated fusion bonded over an aluminum casting to produce this never hot never cold to the touch steering wheel FIG 834 Teak Rim Wheel Edsons custom Teak Rim Destroyer Wheels come with 12 stainless steel spokes and an all new exclusive stainless steel wheel hub enabling the spokes to be internally welded at the hub The Edson rim is laminated in three thicknesses of Teak and finished to an easy gripping I1h diameter The teak rim is warm to the touch beautiful in appearance and feather light for the ultimate in feeling Edsons Teak Rim Wheel is available in 5 sizes through 38 in diameter The wheel is delivered with the rim unfinished ready to be either varnished or treated with an exterior teak finish As each wheel is custom made please allow about 10 days for delivery FIG 733 Leather Covering Kit For Edson offers leather kits for new orexisting wheelsThe kit includes the leather covering prewaxed sail twine and the needle All we need is the correct diameter of the wheel A strong simple and quick cross stitch should be used For example a28 wheel can be covered in about three hours FIG 644SE Leather Covering for New Wheels The ultimate luxury a very soft leather covering that can be applied to all Fig 644 Stainless or Vinyl Destroyer Wheels For new wheels with leather covering sewn on at the factory see the price page under Fig 644SE FIG 716 Leather Covering for Your Present Wheel Send your wheel t o Edson and we will sew the leather covering on for you Costs per wheel size are listed under Fig 716 in the price pageWHEELS ANDFIG 688 Character WheelsFIG 688 Character Wheels Edsonls Character Wheel i r designed to fit the many character boats now being built Edson has substituted corrosion resistant aluminum for the old style galvanized iron to get a wheel that is light nonmagnetic and equipped with teak handles in effect modern materials and concept for an old style productA GUIDE TO SELECT NG YOUR STEERING SYSTEMNot too long ago wheel steering was only associated with large ocean racing and traditional sailboats The rapidly growing trend towards wheel steering has changed to include cruising and racing sailboats as small as 18 feet Many people once believed the only way toget theUfeelof a sailboat was with a tillerThe popularity of wheel steering as well as its practicality has shown even the most adamant tiller man that better feel and better boat control can be obtained with wheel steering Without the tiller sweeping theentire cockpit the crew can perform more functionally guests can relax more comfortably and shorthanded family sailing suddenly becomes simple Planning a steering system for a tiller conversion or an option on a new boat is not a casual matter and should be done with the utmost thought and consideration More time should go into the planning of acockpit than any other part of the boat this is where the crew spends the vast majority of their time whether the boat is for cruising or racing Moreover the cockpit is the base for handling sails as well as steering Thus in this one area of the boat comfort convenience performance and safety are all equally vital factors neglect even one and the pleasure of sailing is in ieooardvA major part of planning agood steering installation islocating thesteerer This must take location of the rudderpost winches main sheet and engine controls All must be located properly or moved to the appropriate location for a functional and comfortable cockpit The aft cockpit steering location is normally associated with h t e older traditional design where a worm gear type steerer to a rudderpost located in the aft end of the cock O p i t It is also the location used for the New Edson Rack and Pinion Steerer installed abovedeck directly toarudderpost located in thevery aft end of the cockpit or with atransom hung rudder The is often locatedwell aft in thecockpit in cruising and racing boats minimum distance 21 inches from the pedestal centerline to the aft cockpit bulkhead Theadvantageof any of theseaft steering installations is that the helmsman is well aft out of theway of crew members working winches From this position the helmsman sees all the action can cast off sheets or tail winches participate in cockpit conversation and has a complete view of the sails and rig In the midcockpit installation the helm is farther forward where the boat is wider so the helmsman can get more outboard instruments mounted in the cabin bulkhead can beeasily read the winches and cleats are more accessible to the helmsman whether they are forward or aft of the helm On a cruising boat this location clears the aft end of thecockpit forcrew members or guests not needed for handling sheets Neither the backstay nor main sheet need interfere with the helmsman standing behind the wheel and the helmsman has sufficient room to brace his feet without restriction With the helm in midcockpit winch location does become critical especially when installing wheel steer in in an exist in c o c k iwhere t winch locations are fixed concentrating both winches and helm in the middle of the cockpit can be most inconvenient for both helmsman and crew The forward cockpit installation places the helmsman close to the companionway under the protection of a dodger out of the way of winches and main sheet and in a wide part of the boat where head sails can be easily viewed fihoing the type of steerer is specifically covered on its I ppropriatepage of this catalog however each has certain which are best suited for a particular type boat Rack and Pinion Steering is most useful on boats from 16 to 40 feet where space under the cockpit floor is limited or for those small sailboats with transom hung rudders such as the trailerable models The inboard rudder models that are particularly well suited are those with the rudderpost coming through the aft1Wheel Size Alum No 20n1508 1 6 8 8 A1Spokes No 61Wt k 6127FIG 6851FIG 685 Flying Bridge Wheels For cruisers and sport fishermen with flying bridges and smaller open high speed fishermen with console steering positions The wheels are dished 25cm and are cast of nonmagnetic aluminum Warm t o the touch these aluminum wheels have a fushion bonded coating of grey vinyl All Edson Wheels can be easily adapted to fit steerers of other manufacture by using a Fig 698 Edson Adapter and an Edson wheel nut Furnish Edson the size of your wheel shaft and the make and model of your steerer4118k 6127k 20508cm 1 685V FIG 604Stainless Steel Spoke Wheel with Teak HandlesA traditional wheel with modern materials the Fig 604 wheel is fabricated with a gleaming rim of ovalized tubing and solid stainless spokes internally welded at the hub for maximum strength and a smooth neat appearance Sizes 24 30 and 36 availableFIG 673 Wheel N361914 cm 6 lbs127 KWheel Size Fig No 16406cml 685V1 1Spokes No 3 3I S o k Wheel e wleak HandlesFIG 826 Quick Release Wheel Nut For those who have oversized wheels and wish to have access t o cockpit seat lockers or who wish toremove the wheel for protection against theft the Quick Release Wheel Nut enables the removal of your wheel quickly and easily Available in two thread sizes 3 h 10 and 114 FIG 673 Wheel Nuts Edsons wheel nuts are available in a choice of three materials glossy black plastic Chrome Plated Forged Brass and Polished Brass The Black nut is a molded product that is easily tightened on the shaft and has a built in friction device to eliminate ioosening by vibration The Black nut will stay shiney and new for years and is now standard on ail Edson steerers FIG 826 Quick Release Nuts3IThread SizeIn1431410 Fig NoFIG 698 Wheel Adapter The answer for installing Edson wheels on steerers of other makes Simple and strong the adapter is made of brass and furnished with a stainless steel locking pin stainless steel wheel key Orders must include the and a lhN make and model of the steerer See the price page for available adapters Remember to order 3 items the wheel the adapter and the wheel nut FIG 858 Leather Chafing Gear The same leather material as used for wheel rim covers is now available as scraps for chafing gear in a 4 t o 6 oz bag Complete hides measuring approximately 20 square feet are also available see price pages FIG 684 Stainless Steel Keystock for Wheel Shafts Standadd Square Size and Length 1 h x 112 All Edson pedestal ar steerer wheel shafts come complete with stainless steel k e k d stock as standard equipment Edsons keystock will not rust like steel and is tougher than brass When ordering as a spare for h x 11 2 Other sizes and Edson wheel shafts always specify 1 lengths available upon requestIChrome Black Fig No 673C No or the very aft part of the cockpit floor The Rack and Pinion can virtually be plugged into these setups with a minimumamount of installation effort with the exception of building a cover over the steerer to serve as a helm seat Worm Gear Steering is often referred to as NonReversing meaning the feedback from the rudder will not normally turn the wheel when the helmsman lets go of the wheel These steerers are most often used on traditional boats with aft raked inboard rudders Because of the rake it is often impossible t o install a quadrant underthe cockpit floor This type of steerer is attached directly to the rudderpost above the cockpit floor at right angles to the rudderpost The steerer shaft may be fitted with a universal and an extra bearing to build in the exact wheel helm A wheel box must be built overthe steerer to serve as a helm seat This box can be kept as narrow as possibleso the helmsman can sit behindoralong side the wheel The box can have a flip up top to serve as a seat back for long watches at the wheel Engine controls can be located right on the sideof the helm seat within easy reach of the helmsman Despite the worm gear steerer being nonreversing there are always those boats with an excetional weather helm or oarticularlv hard steering For these boats we now offera fridtion shaft brak for all sizes of worm steerers Bulkhead Steerers are most advantageous for power boats motorsailers two station steering MidShip Cockpit boats and bridge deck console type steering stations generally found on custom racing boats Bulkhead steerers can be purchased for very small boats using direct sprocket and chain drive as well as 2l and 3l geared reduction sprocket and chain steerers for very large commercial vessels such as fishing boats and tug boats Pedestal Steering is well suited for both midship cockpit and aft cockpit boats with inboard rudders as well as transom hung rudders This system requires space under the cockpit floor for mounting sheaves sheave bracket or Radial drive Steering System It offers maximum flexibility in that any number of sheaves may be mounted to route wire rope around engine spaces through aft cabins or around fuel tanks etcThe pedestal type system comprised of sprocket chain and wire rope can be used very efficiently for both cruising and racing boats up to 80 feet by varying the size of the steering wheel and the size of the quadrant toeffectively changethe poweroutput necessaryto sail your boat This steerer is very popular and most versatile when planning your cockpit for convenience accessories such as brake guard tables instrument housings engine controls helm seat and autopilot drives PullPull Steering is a new system offered by Edson as an alternative to a sheave and wire rope system This System can be used with either Bulkhead or Pedestal Steerers with inboard or outboard rudder boats It is most advantageous for MidShip Cockpit and Aft Cabin boats when routing the steering cables from the Center Cockpit to the rudderpost can become complicated The PullPull System uses standard Edson components in conjunction with flexible conduit housing 7 x 19 stainless steel wire rope Unlike pushpull cables such as those used on engine controls pullpull is always in tension The result is very positive steering control without the play and lost motion generally associated with a PushPull Cable Each steering section of the catalog shows a chart for selecting the recommended size steering system for your boat Each chart is composed of information gathered from our many years of leadership in marine steering Due to the many variations in yacht design in areas of hull shape engine horsepower and sail configuration final must be approved by your Naval Architect 698 Wheel Adapters For Wheel Adapter Sheet EB 214 write or call the Edson CorpRACK AND PON STEERERSr2 1RACK AND PINION STEERERSThe Rack Forward Steerers are for those boats with little or no room aft of the rudderpost There are two models each having distinctive uses These should be carefully evaluatedRack and PinionDesigned for transom hung rudder inboard rudder double ended boats with dl board rudder racing and cruising boats to about 40 feet these steerers offer the answer for those requiring a compact powerful and sensitive wheel system for their craft Positive response provides the helmsman with complete feel of the rudderThe transom hung models offer 16 turns of the wheel lock to lock in 70 and the inboard models 18 turns to lock in 80 Easeof installation is primary featureTransom hung rudder models attach directly to the rudder through a slot approximately 2 x 6 in the transom lnboard rudder models attach to the rudderpost or rudderpost extension and are available for mounting either fore or aft of the rudderpostThe steerer frames then bolt onto theaft deckorsuitable mounting surface You need only build asimple strong combination seat and cover for over the steerer Rack and pinion steerers are ruggedly constructed of bronzeand bronzealloys with 1 stainless steel wheel shaft andhardware h e s materials e were tested and proven for their extra wear resistance reliability and will provide years of trouble free performanceFig 347 Forward Mounted Rack and Pinion Steerer This steerer attaches directly to the rudderpost and the wheel is parallel to the rudderost The A on the shaft dimension is standard at 21 or is available to suit See chart below for steerer sizes Fig 346 Forward Mount Rack and Pinion Steerer complete with shaft universal and a 1 SelfAligning Bearing This steerer is the same basic model as the Fig 347 but it incorporates a shaft universal This pivots at a point 141z1 forward of the rudderpost The selfaligning bearing iswRACK AND PINION HUNG RACY THICKNESS 341 incheslcm1314 44IIbs24IkFig 342inches cm35013112 1891281 127 1 IIII3501 3112189131 1140The Edson Rack and Pinion Steerers are made in four different configurations transom hung rudder steerers two different types of inboard rudder steerers and a rack and pinion steerer for double enders These steerers mount 90 to the rudder axis orboats with forward rakes or extreme aft rakes on this axis the steerers are available with a shaft universal and an additional bearing Shaft universals can change wheel rakes to 30 degrees in either direction To allow the helmsman to the top of the wheel should be located about 321802cm up from the cockpit sole lnall cases keep the seat low enough so the helmsmans feet are firmly planted on the cockpit floor or other brace If they are left dangling the circulation will be cut off and the position becomes uncomfortable oatswith rudderposts located too low in the cockpit can use the Fig 782 rudderpost extender and Fig 675 coupling to raise the steering assembly to the required height Edson will be glad to assist in the selection of the correct rack and pinion for your boat Just send in the top and side view construction drawings of your boat or if these are not available a simple sketch with dimensions and a photograph will helplnboard Rack and Pinion 1SELECTION GUIDE Helm SeatBuilt inFIG 341TRANSOM and pinion steerers are in most cases straight forward The variables a d A or shaft length rudderstock for transomhung rudders rudderpost size for inboard rudders and wheet angle Taking these one at a time 1 The A or shaft dimension is the distance from the axis on which the rudder turns to the aft face of the wheel hub If you intend on buildina a helm seat over the steerer be sure to add 6 to 8 inches for ieg clearance between the forward edge of the seat and the wheel If there is any question make the shaft a little long as it can be made shorter on the job 2 The width of the rudder or rudderstock dictates the size for transom hung rudder steerers Fig 341 and Fig 342 If in doubt get the next wider jaws as you can always shim the sides of the casting The jaws on the gear rack are drilled at the time of installation 3 The rudder post diameter determines the size of rack and pinion steerers for inboard rudders Refer to the size charts for Fig 343 344 346 and 347 4 All models of rack and pinion steerers are available with shaft universals if you want to raise or lower the wheel angle Fig 341 Transom Hung Rudder Steerer This steerer attaches directly to the rudder through a slot in the transom and the wheel is parallel to the Pintle Line The A dimension is standard at 21 inches or is available to suit Fig 342 Transom Hung Rudder Steerer Complete with shaft universal and 1 selfaligning bearing This steerer is the same basic model as the Fig 341 but it incorporates a shaft universal This pivots at a point of 14112 forward of the Pintle Line The selfaligning bearing is placed forward of the universal as close to the wheel as possible to keep the wheel with a solid feel The shaft universal can change the shaft angle up to 30 degrees The same steerer sizes apply to the 342 as the 341L FIG 346 for Removable Emergency the rack to the rudder or rudderpost at a 90 angle Align the steerer housing on the rack and check to make sure the height and angle of the wheel shaft are correct Securely bolt the housing in place on the aft deck or mounting platform Make sure this surface has suffi ient strength as it must absorb all of the steering loads If required tlJ einforce it Stops such as wooden blocks shown to the right should now be installed on both sides of the steerer to limit its travel to the desired arc The box over the steerer should be waterproof yet readily removable If you intend this box to double as a helmsman seat be sure to build it high enough to allow good visibility over the cabin top Provisions for emergency steering should be made by fitting a removable tiller on top of the rudder post lL 0 A 1Ft M to 25IL W L IFtto 22SIX Inches 18 20 20 22 22 24In Ft LORDERING INFORMATION77 926 30 31 3623 25 26 31273 300 3602 29 276When ordering a Rack and Pinion Steerer please specify the Figure number size type of boat and description For inboard steerers the rudderost diameter and key size is necessary Unless otherwise stated the keyway hill be onquadrant side If the steerer is to be used with a tubular rudderpost please sd vise and you will be supplied with a 318 inch pin pilot drilled through the cap of t h J quadrant Also advise the A or shaft length that best fits your installation When determining a wheel shaft length be sure tb include the thickness of the face of the wheel box space needed for an autopilot drive sprocket or length required for a Fig 783 Brake about 2114 Wheel shafts are 1 stainless steel and are machined to accept Edson Wheels with 1 bore by 2318 bore length with a 114 keyway Inboard Rudder Rack and Pinions are bored and keyed at the factory if the sizes are specified If not they will be supplied with a pilot boreWith Proper Iudder Stops and AutoPilot Note All screws and bolts should be tight and should be checked regularly to insure that they remain tight7TRANSOM HUNG RUDDERSRACK AND PINION MOUNTED RACK AND PINIONRACK AND PINION STEERERSThe Rack Aft steerers are for those boats with at least 12 inches of space aft of the rudderpost and limited space forward The basic dimension of the gear should be carefully noted as it is important to place the wheel about 32 inches up from the cockpit sole to allow the helmsman to steer specifically for double ended boats up to about 38 with transom hung rudders Edsons new model Rack and Pinion Steerer operates in a similar fashion to the standard Rack and Pinion Steerer with the feel of a tiller and very responsive to the touch It is available in two models for straight inline installations on vertical or nearly verticle rudders and for offset installations requiring a shaft universal and an adjustable bearing for angled rudders They require only a small slot in the stern for the operating rod This slot can be easily sealed with a homemade boot similar to one for a mast step Fig814 Double Ender Rack and Pinion Steerer consists of a Rack and Pinion Steerer with lever 2 clevis units connecting rod anda rudder lever unit The geared quadrant is designed to mount on a 1112138cm dummy rudderpost The A dimension is 21 theUC dimension is 16 or either is available to suit Weight 46 lbs1207k Fig 815 Double Ender Rack and Pinion Steerer complete with shaft universal and 1 selfaligning bearing This steerer is the same basic model as the Fig 814 but it incorporates a shaft universal and bearina This Divots at a o i n14112forward t of the dummv rudderpost The selfaligning bearing is then placed forward of t i e universal as close to the wheel as possible to keep the wheel with a solid feel The universal can change the shaft angle up to 30 degrees Weight 49 lbs122lk Fig 613 Outboard Lever Quadrant Assembly consists of a 12305cm quadrant Fig 668 2 clevis units connecting rod and rudder lever unit This assembly is designed for double ended boats which want to use a roller chain type steerer ie Pedestal Bulkhead Steerer or Geared Reduction Steerer in an outboard rudder quadrant The steering cables can be l e d j aft from your choice of steerers using an appropriate combination of sheaves or u l l conduit ull The quadrant is desianed to mount on a 1 112 138cm dummy rudderpost For ordering d installation instructions refer to the double ended rack pinion steerer below Assembly weight 398 344 with universalAil Edson Rack and Pinion Steerers can have auto pilot sprockets a t tached iust forward of the steerer frame b n the aft mounted rack models there is a 2 inch shaft extension aft that an auto pilot can be attached to alsoA 1 5 3 7 5 OR 24 crnFig 343 Aft Mount Rack and Pinion Steerer size 1 is for use on aft racked rudderposts 1 to 2118 diameter with a maximum key of 318 in on the aft side of the rudderpost If the bore is not specified the rack will be furnished with a718 pilot hole The A Dimension on the wheel shaft is standard at 15 inches or is available to suit Steerer weight 30 lbs1135 k Fig 344 Aft Mount Rack and Pinion Steerer is for use on boats withQ vertical rudderposts or severly aft raked rudderposts This steerer comes with ashaft universal and two 1self aligning bearingsThis steerer allows the adjustment of the angle of the steering wheel within a 30 23 575 cm or to of all it is important to establish and install the reinforced platform that the dummy rudderpost is going to be bolted to Bear in mind that this surface must be of sufficient strength as it must absorb all of the steering loads This platform must be 90 to the rudder on a plane where you wish to install the rudder lever Also note that the geared rack and pinion quadrant requires a minimum of 10 on each side of the dummy rudderpost to swing in This dimension will help in establishing the C dimensions Temporarily mount the dummy rudderpost and assemble the rack and pinion gear and housing Assemble the clevis the connecting rod and the rudder lever unit With C clamps attach the rudder lever unit to the rudder Now operate the steerer noting the rudder travel from side to side The location of the lever on the rudder either fore or aft or possibly even shimmed to starboard determines equal travel from side to side Take time with the positioning of this lever and be precise When you are satisfied secure all parts and install stops such as wooden blocks on each side of steerer to limit its travel to the desired arc Provisions for an emergency tiller should now be made if you do not already have oneCABLE SYSTEM FOR DOUBLE ENDERThe New Fig 345 Aft Mount Rack and Pinion Steerers are for use on boats with rudderposts raking forward Although similar to Fig 344 in function the exact location of the shaft universal allows adjustment of the steering wheel from a position parallel to the plane of the rudderpost to a more comfortable vertical or aft rake position MAINTENANCE Maintenance of Rack Pinion Steerers is minimal and when performed at least oncea month will provide years of troublefree performance Oil shaft bearingsand hinge joints on Hinged Racks with 30 Motor Oil Usealight application of Fig 827Teflon Lubricant on the gear teeth and contact point of the adjusting arm Universal joints should be packed in grease and booted Daily inspection is recommended One of the most popular accessories for wheel steerers this brake was designed especially for Rack and Pinion and Worm Steerers Its dampening action is especially handy on long runs or when operating under power Can also be used to hold the boat on course under most conditions As a safety feature the brake can be overridden by the helmsman The Brake mounts on the wheel shaft against the inside forward wall of the wheel box with the adjusting knob coming out either side of the box Brakes are constructed 675The Fig 345 Aft Mounted Rack a Pinion Steerer is ideal for installations where the Ruddarpost is either raked forward or aftSHAFT MOUNT BRAKE FIG 783 I IUFIG 345aluminum and bronze with long lasting brake lining and supplied with brake shaft and shiny black brake handle Brakeshaft lengths available are 81205cm 12306cm and 1436cm Special lengths are available upon request When ordering be sure to specify Fig No size Brake Shaft length and Shaft diameter Wt 2 Ibsl91 kSize 1 For 1 diameter wheel shaft to fit ail Rackand Pmon Size 1118 For 1118 diameter wheel shafts to fit Super Simplex Size 00 PEDESTAL FIG 689BRAKE FORSEEFIG 613 Outboard Lever INFORMATION Quadrant5112 cm minWhen ordering a Rack and Pinion Steerer for a double ender please specify the figure number A Cdimensions type o boat and a description of the location of the dummy rudderposj3 with dimensions Unless otherwise specified the geared quadrant will be bored with a 1112 dummy rudderpost Refer to ordering information for Rack and Pinion Steerers for more detailed considerations when determining the A dimension Individual parts are available see Fig 616 808 and 836 Tiller Arms If you require further assistance please do not hesitate to contact the Edson factory for more informationFOR PARTS complete waranty information see inside front cover9s4tnRACK AND PINIONIWORM STEERER ACCESSORIES317 COMPASS with ig compass 856AdaptorWORM STEERERSp 51127cm Compass Optionalfor 4 5 or 6 compass location for boats with Worm Rack and Pinion steerers or even a tiller Aluminum with baked on white finish Forcompasses to fit see Fig 658 Pedestal accessories such as guards tables etc can all be used with compass pedestals Also available with Fig 714 Narrow Base or Fia 690 Milled Base andlor s p e c i i heights See the price page for additional details For mounting bolts see1Edson offers three basic models of Worm Steerers Simplex Robinson and Meteor The Simplex is the most popular model c n d is manufactured in three sizes for boats up to about 50 feeVl5m in length There are two basic designs of the Simplex one with the worm mechanism forward of the rudderpost the other with the mechanism aft of the rudderpost The actual choice depends on the space available for the gear the operating features are identicalA photographic comparison of the Figure 370 ize 00 Simplex and the Fig 380 Size 2 RobinsonFIG 629 SELFALIGNING BEARING SelfAligning all bronze bearings similar to those furnished with all Worm Steerers To be used in conjunction with Fig 679 Shaft Universal for changing wheel shaft angles on Rack and Pinion and Worm Steerers Ideal for marine use for all rotating shafts where alignment is a problem Not recommended for proellpr or other high speed shaftsWORM STEERER SELECTION CHARTMODEL 6292a188MODEL 629CSteerer Size Simplex 00 Simplex 0Three Edson Worm Steerers for boats 45 to 95 feet overall length Great care must be taken to select the proper gear by size and model and it is recommended that plans be sent to Edson for review by Edson Engineering The Meteor is a steerer that has an equal amount of worm forward of the rudder post as well as aft of the post The Robinson is available with either both worms forward of the rudder oost or all aft of the rudder post Both Meteors and Robinsons have an extension aft for attachment of an Steerer Weight 33115kto HardOver in 90 degreesTurns Length of Boat 35Bores I Pilot 1 maxRudder Post P aFIG 629 AAvailable sizes from 718 t o 1318 Dia Robinson2 e606595232 Pilot 3 1 1 max 2701122k 33 95Wheel Shaft Size to fit Wheel Bore 1 2318 Hub Length 114 key Special Wheel Shaf Diameters AvalableFIG 629 BAvailable sizes from 1112 t o 2 DiaFIG 795 FACEPLATESFits Shails Malerial Plale Dimensions Inch mm Inch mm 1 1 118 254x285 Stainless SIeei I13l8x3516 349x841 1375 1318 349 Chrome Bronze 2112 x 4314 635X1206 15 1112 381 Chrome Bronze 2112x 4314 6 3 5 1206 Fig SizeThese faceplates are ideal for dressing up Worm and Rack and Pinion 679 SHAFT UNIVERSAL For use with all Worm Steerers and Rack and Pinion Steerers Allows the wheel to be tilted to the most comfortable angle when the rudder is excessively raked For its use see Rack and Pinion and Worm Steerer plannivg sections Note that a F i g 629 bearing must always be used with the universal The universal is constructed of steel with a breaking load of 15000 inch pounds Universals can change shaft angles up to 30 For maximum life they should be packed in grease and booted Weight 3 lbs136kFIG 782 RUDDERPOST EXTENSION A shaft extension for Rack and Pinion and Worm Steerers where the existing rudderpost is too low in thecockpit TheseExtenders are designed for use with Fig 675 Couplings Rudderpost Extenders are supplied with keyways at both ends Type I Extenders are a uniform diameter along their entire length and Type I1 Rudderpost Extenders are supplied with 2 diameters as shown When ordering specify type and provide a sketch showing all dimensions in the drawing See Price SheetAType IIFIG 675 BRONZE SHAFT COUPLINGS Especially handy for connecting in line shafts of the same diameter Also used with rudderpost extenders on Worm Steerers and Rack and Pinion installations where the existing rudderpost is too lowt z lfor all available sizes see p r i s pagesWorm steerer installations must be well designed and well thought out from all standpoints The basic system is mounted at 90 to the rudderpost and is rigid at this point The SelfAligning Bearing supplied with the gear must be well bolted down to a timber or strong moldment on a fiberglass design It is important to design in the basic features that make for a successful installation It is recommended that the top of the wheel the actual part you hold onto be 31 79cm to 33182cm up from the cockpit floor This will allow standing beside the wheel without reaching down to the wheel also sitting in back of the wheel or alongside it and have the wheel at a convenient height Essentially a Worm Steerer is a nonreversing system with little to no feel and is most commonly used on a longkeeled cruising design The steerer design features more turns pf the wheel from hard over to hard over than is normally designed into a wire type of pedestal systems The Worm Steerers would then not be recommended for a shortkeeled fast turning boat or one that does not track as well as the longkeeled boats The nonreversing feature will hold the wheel in place on most boats most of the time It will give or turn if the boat is hit by a large wave or the boat has an excessive helm due to basic design force of the wind or balance of the sails The gears are strong and relatively heavy as they must stand all of the strain of the rudder when transmitted to the gear The shaft extension or the wheel shaft itself can be easily 9pated to an AutoPilot by the addition of the necessary Jilot sprocket The choice of the location is one that will allow the sprocket chain to be led at right angles to the worm shaft directly to the AutoPilot motor box When ordering advise Edson of Rudderpost bore diameter Keyway size and Keyway position these will be machined by Edson If a special A length is required be sure to include itFIG 390 Edson Meteor Steerer With Worm Fore and Aft of Rudderpost Wt 128 lbs1585 k A 311FIG 380 Edson Robinson Worm Aft Steerer Wt 128 lbs1585kFIG 382 Edson Robinson Worm Forward Steerer Wt 128 lbs1585kSIZE 2SlMPLM WORM STEERERSFor excessively raked rudderposts Edson offers a Simplex with the Shaft Universal Assembly on the wheel shaft and an exfra SelfAligning Bearing for the needed forward wheel shaft support This combination can reducethe wheel angle by a maximum of 30 up or down That is if the rudderpost is at 45 to the waterline the wheel can be angled at only 15 Edson feels the maximum angleof the wheel should be no more than 20 Likewise on near vertical rudderposts the same setup can be used to give the wheel some aft rake This angle is important as it will give the helmsman room for his knees while the top of the wheel is closer to his arms If in doubt as to steerer size or if the boat is very heavygo larger Do Not compromise the final size For those boats where the rudderpost ends at the cockpit floor level Edson can furnish the Fig 675 Coupling and aFig 782 Rudderpost Extender of the correct size and length Measure carefully and if in doubt add to the length of an extension it can always becut off andlor send Edson full details of what you are trvina to do we can possibly add some ideas to make the installion better or more v