Патент USA US2132582код для вставки
0m. v11, 1938. 2,332,582 H. F. SHAW RUDDER Filed Dec. 21, 1956 stw __ 5 mE _ m .m W6WH mMW, Patented Oct. 11, 1938 - 2,132,582, UNITED STATES PATENT OFFICE. 2,132,582 RUDDER Harry F. Shaw, McKeesport, Pa. Application December 21, 1936, Serial No. 117,071 2 Claims. (Cl. 114-462) This invention particularly relates to rudders for river boats, tow boats, or the like, and has welding or any other suitable means, such as brackets I4. A metal plate I6, or a similar de for one of its objects the provision of a rudder having a novel construction. The above and further objects‘ will become ap vice, can be carried by the rudder 2 so that, if the boat has a plurality of rudders, a connecting rod or bar can be secured between the rudders to parent by referring to the following description and the accompanying drawing, in which: A feature of this invention is the use of a unify their motion. welded construction throughout because that con struction is adapted to produce the maximum strength of the assembled parts. As the rudder 10 2 is hollow and the weight of the rudder 2 should rudder operating stem shown in Figure 1; and, be held to a minimum amount, it is highly im Figure 3 is a plan of the rudder shown in Fig portant that the rudder 2 be made water-tight. ure 1. By welding the parts of the rudder 2 together, a ‘ Referring more particularly to the drawing, the water-tight unit is made without breaking the 15 numeral 2 indicates generally a rudder for a 15 river boat, tow boat, or the like. The sides of smooth outer surface of the sheets 4 and 6. While I have shown and described a speci?c the rudder 2 are preferably made from two flat, ' embodiment of my invention, it will be under smooth-surfaced metal plates or sheets 4 and 6. A plurality of channels B'are riveted, welded, stood that I do not wish to be limited exactly thereto, since various modi?cations may be made 20 20 or otherwise secured between the plates 4 and 6 without departing from the scope of the invention to hold them in unitary spaced parallel rela tion. Channels or bars 9 may extend between the as de?ned by the following claims. I claim: ~ channels 8 and be welded to the .sides 4 and 6. 1. A water-tight rudder comprising a pair of As the plates 4 and 6 are subject to severe stresses spaced parallel metal plates, channel members 25 when the rudder 2 is in use, the channels 8 and welded to and between said plates for spacing , bars 9 are arranged to give the desired strength. and securely holding them in spaced relation, 2. to the plates 4 and 6. To form a hollow water-tight body from the metal strip extending between and‘joining the and continuously welded to the edges there plates 4 and 6 and the channels 8, strips It], plates of to provide an integral hollow buoyant body 30 made from metal plate or sheet, are secured be 30 tween the plates 4 and 6, as close to the edges having a smooth outer surface, and a ?ange car thereof as is possible. The strips l0 and the ried thereby for attaching said rudder to a rudder channels 8 are secured to the plates 4 and 6 in operating stem. 2. A water-tight rudder comprising a pair of such a manner that they form a strong, smooth spaced parallel plates, a plurality of metallic 35. 3 surfaced body therewith. The smooth surface permits the rudder 2 to move through water members positioned between said plates and at with a minimum of disturbance and friction tached to the inner surfaces thereof holding them in spaced relation, some of said members being The rudder 2 is constructed and arranged to arranged horizontally and the others vertically be assembled as a unit and then attached to the of said rudder, a metallic strip extending between 40 and joining the plates around the edges thereof rudder operating stem which controls its posi to provide an integral hollow buoyant body hav tion. A ?ange l2, which is adapted to be en gaged with the rudder operating stem, extends at ing a smooth outer surface, and means for attach right angles to the plane of the rudder 2 and is ing said body to a rudder operating device. HARRY F. SHAW. 45 secured to the rudder intermediate its ends by Figure 1 is an elevation of one embodiment of my invention; Figure 2 is an end elevation of the rudder and 10 therewith. ' .