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UNITED STATES PATENT OFETICE. ALBERT H. MANCHESTER, oF PROWIDENCE, RHODE ISLAND. ANTIFRICTION-SUPPORT FOR THE BACKS OF . Specification of Letters Patent No. 24,037, dated May 17, 1859. To all whom it may concern: To enable others skilled in the art to make Be it known that II, ALBERT H. MANCHES- . and use my improvement, I proceed to de TER, of Providence, in the county of Provi Scribe its construction and operation, re dence and State of Rhode Island, have in ferring to the drawings in which the same vented a new and Improved Antilfriction part is marked by the same letter of ref 55 -Backer for Rudders of and erence in all the figures. other Wessells; and I do hereby declare that F marks the rudder ; E, its hoop; G, the following is a correct description of the the ; B the bracket; d the antifriction same, reference being had to accompanying rollers; Lu, the ; li l bolts. When the 0 drawings, representing three different forms veSSell and rudder are so constructed and 60 of the invention. placed as to make it imconvenient to place Figure 1 is a perspective view of a backer the backer so that the rollers shall bear on in which the rollers are applied directly to the hoop of the rudder head (as in Fig. 1), 5 the hoop . of the rudder head. Fig. 2 is a | a circular plate E' is placed around the rud similar view of a backer where the rollers der head above or below the tiller upon 65 bear against a plate placed upon the rudder which the rollers bear with the same effect. head for that purpose. Fig. 3, is a similar This arrangement is shown in Figs. 2 and 3. view of a backer the bracket of which is not The upper part of the bracket is cast with attached to the deck, but to the or cavities to receive the rollers and their axles, 20 bulwarks of the of the vessell. So that they will play freely. The lower 70 The mature of my invention consists in parti, or stand, of the bracket is secured to forming a bearing for the head of the rud the deck Li by bolts l. der of a vessel by means of two or more anti I am aware that friction rollers have been 25 friction rollers moving freely in a suitable applied to the rudder heads of vessels by casting or bracket of brass or other metall, placing Such rollers in a ring let into and 75 and placed behind the rudder head upon fiush with the deck; but that arrangement is deck, so that the rollers shall bear against Wastly inferior to mine inasmuch as it is the hoop upon the rudder head, or upon a difficult of removal in case of its getting out plate placed for that purpose, in Such a of Order, and because water gets in around 3 0) manner as to press it clear from, and allow and under the ring and rots the timber. 80 it to move freely in the rudder port, thus re My improved backer is little liable to get lieving the head of all strain and friction in out of order; is easily removed in case of the rudder port in whatever position it may Such an accidenti; and permits the ready re moval and renewal of rollers or bands when 335 be placed, and under all circumstances. The advantages derived from this arrangement injured or worm. 85 are, 1st, relief from the usual friction I do not therefore claim simply the appli created by the rudder head turning in the cation of antifriction rolls to the rudder rudder port through the deck. In conse head of vessels; but, 40 quence of this advantage a which, con What I claim as my invention, and desire structed according to the usual mode, re to secure by Letters Patent, is 90 quires two or even three men at the wheel in The device or apparatus before described, . heavy weather, may with this improvement viz, Supporting the rudder from behind by be managed with perfect ease by one man. means of a backer or brace rising from the 45 2d. The usual diagreeable moise caused deck or attached above it, and having rollers by the friction in the rudder port is re in its face, constructed arranged and operat 95 moved... 3d. There is no wearing or bind ing substantially as described. ing in the rudder or rudder-port, and conse ALBERT H. MANCHESTER quently the strain and wear of the tiller Witnesses : ropes are greatly reduced. 4th. It is adapt D. B. L-EwIs, 5 0 ed to vessels of every class. JOSEPH S. PITTMAN.