Патент USA US2132590код для вставки
Oct. 11,’ 1938'. E. H. WATERMAN 2,132,590 DOOR LATCH Filed Dec. 50, 1936 if" 2 Sheets-Sheet 1 Oct. 11, 1938. E. H. WATIERMAN 2,132,590 DOdR LATCH Filed Dec. 50, 1936 2 Sheets-Sheet 2 v EDW/N H. MTEEMJV, M 2,132,590 Patented Oct. 11, 1938 vUlixiif'iioI STATES "PATENT oFFICE ‘ 2,132,590 DOOR. LATCH Edwin H. Waterman, Munhall, Pa. Application December 30, 1936, Serial No. 118,398 3 Claims. (Cl. 105—308) This invention particularly relates to an ad justable door latch which is adapted to be used on heavy doors, such as those on railway hopper cars. One of the objects of this invention is to pro vide a door latch which can be installed with a minimum amount of labor. Another object of this invention is to provide a door latch with a hook member which has a 10 plurality of positions in which it can be assem bled. ' The foregoing and further objects will be made apparent by referring to the following description and the accompanying drawings, in which: 15 Figure 1 is an elevation of one embodiment of my invention; Figure 2 is an elevation of my improved door latch after the initial step in the assemblythereof ; Figure 3 is a transverse sectional elevation on ' 20 line III—III of Figure 2; Figure 4 is an elevation of my improved door latch after being further assembled; and Figures 5, 6 and 7 are elevations of modi?ca tions of my invention. Referring more particularly to the drawings, the numeral 2 indicates generally a door latch which is mounted on a hopper 4 of a railway hop per car (not shown). The hopper 4 has a side plate 6 and a door 8 which is hinged at its upper 30 edge. A ?ller-plate ID, or other suitable means, is secured to' the side-plate 6 to provide a base for the remainder of the door latch 2. The ?ller-. plate I0 has holes II, a hole I2, and a hole I3 therein which align with holes previously made 35 in the side-plate 6. Initially the ?ller-plate I0 is secured to the side-plate by a rivet, or other suitable means, through the hole I3 and thereby held in its ultimate position. - A hollow trunnion I4 is formed integral with 40 the ?ller-plate I6 and surrounds the hole I2. A hook I6, having a bearing aperture I8, is ful crumed on the trunnion I4. The hook I6 is adapted to be adjusted relative to a keeper-bar I'l secured to the door 8. The keeper-bar I‘! is 45 ?xedly positioned on the door 8 and is adapted to be engaged by the hook I6. However, rela tively large tolerances are permitted in construct ing the hopper 4 so that the position of the trunnion I4 relative to the keeper-bar I'I varies 50 considerably in different hoppers. Therefore, the position of the hook I6 on the trunnion I4 must be variable in order to position the hook I6 thereon in proper relation to the keeper-bar I1. To pivotally mount the hook I6 on the trun 65 nion I4, the hook may be provided with a bear ing block 20, adjustable lengthwise of the bear ing aperture I8. The bearing aperture I8 is of such size that the hook I6 can be adjusted ap preciably relative to the keeper-bar H by shims 22 or similar devices. In Figures 5, 6,,and 7 I have shown modi?ed forms of bearings for the hook I6. In this con struction a split or two-piece bearing 2I is sub stituted for the bearing block 20. The halves of the bearing 2| may be of varying dimensions 10 lengthwise of the bearing aperture I8 in the hook _ I6, as shown in Figures 6 and 7 , so as to provide for adjustment of the hook relative to the keeper bar I'I without the use of separate shims. A bracket 24, having holes 26 therein which are in the same relative position as the holes II and I2 in the ?ller-plate I0, may be used as the outer member of the door latch 2. Rivets, or other suitable means, are placed through the holes 26, II and I2 and the side-plate 6 to per 20 manently secure the door latch 2 to the hopper 4. The bracket 24 may pivotally carry a pawl 28 which is adapted to bear upon the hook I6 and lock it in engagement with the keeper-bar IT. A ?ange 30, having an aperture therein, may be associated with the bracket 24 to facilitate the use of a crow-bar, or the like, in closing the door 8. The motion of the hook I6 may be limited by a stop 32 which is carried by the 30 bracket 24. While I have shown and described a speci?c embodiment of my invention, it will be under stood that I do not wish to be limited exactly thereto, since various modi?cations ‘may be made without departing from the scope of the inven 35 tion as de?ned by the following claims. I claim: 1. A door latch including a ?ller-plate adapted to be individually secured adjacent a door,‘ a trunnion associated with said ?ller-plate, a hook having a bearing aperture therein, a bearing block mounted in said bearing aperture and adjustable lengthwise thereof, said bearing block being ful crumed on said trunnion, and shims for adjust ably positioning said hook on said trunnion. 45 - 2. A door latch including a ?ller-plate adapted to be individually secured adjacent a door, a trunnion associated with said ?ller-plate, a hook having a bearing aperture therein, a bearing block mounted in said bearing aperture and adjustable 50 lengthwise thereof, said bearing block being adapted to be fulcrumed on said trunnion, shims for adjustably positioning said bearing block in said bearing aperture, a bracket for holding said hook and said bearing block on said trunnion, and 65 2 . I 2,132,590 means securing said bracket and further secur aperture therein, a bearing block mounted in ing said ?ller-plate adjacent said door. 3. The combination with the hopper of a rail said bearing aperture and adjustable lengthwise thereof, said bearing block being fulcrumed on said trunnion, and shims for adjustably posi way car having a hinged closure, of a latch mechanism comprising a keeper-bar secured to and extending from said hinged closure, a ?ller plate secured to the side-plate of said hopper adjacent said keeper-bar, a trunnion associated with said ?ller-plate, a hook having a bearing tioning said bearing block in said bearing aper ture whereby said hook can be properly posi tioned relative to said keeper-bar. EDWIN H. WATERMAN.