US1789958A - Car stop - Google Patents

Description

Jan.27,1931. R. L. CREWS 1,789,958

CAR STOP Filed Oct. 2, 1929 2 Sheets-Sheet 1 lll /2 Hlm! /5 1H l f 179--, L. .1m-3 a 5- 9 #EFQM/wg NWI l "l' zal 1 L/d/-jmggCL-l ATTORNEY Jan. 27, 1931. R., L CREWS 1,789,958

CAR STOP Filed OCb. 2. 1929 2 Sheets-Sheet 2 INVENTOR ATTORNEY e so Patented Jan. 27, 1931 PATENT oFFlcE i RQBERT 1.-; chews; orl MADELEINE, WEST VIRGNIA CAR STOP vApplication Liled October 2, 1929.V VSerial No. 396,888.

`This invention relates to a chuck block or holder for mine cars and the like, the general object of the invention beingto provide a member having a wedge partV for fitting in n the space between a portion of the car wheel and the rail on which thewheel rests, with means for lockingthe member to the rail and for attaching the member tothe wheel, so that movement of the wheel toward the mem` l ber is prevented.

l This invention also consists in certain other features of constructionand inA thel combination and arrangement of the several parts, to be hereinafter fully described, illustrated `in pointed out inthe appended claims.

v'In describing the invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, 'and in which Figure 1 is an elevation showing the device inuse. t f "l f Figure 2 is a top plan view vOf the device.

vFigure 3 is a bottom Vplan view thereof.

Figure 4 is a section on line` 4-.4 of Figure 2. l f

Figure 5 is a section on line 5-5 of Fig- 4. I Figure 6 is a view looking toward the front end of the device. y

In these views, A indicates a housing which is composed of the pair of side plates 1 having .the inwardly extending flanges 2 on theirlower edges, the pair of transverse plates 3 placed intermediate the'ends of theplates 1 andhaving their lower edges terminating an appreciable distance above the flanges of the plates 1, these transverse plates being provided with Vcentral depending portions. connected together by a bottom strip 4, to the lower .face of which is connected.y a shoe 5 having teeth formed on its bottom, and the top plates 6 which have their inner edges spaced apart and are connected by screws or the accompanying drawings and specifically the like to flanges 7 formed on the upper edges of the `transverse plates. Tliedfside plates 1 are connected together in spaced relation by the bolts 8 which have spacers 9 thereon, and the shaft 10 which has its ends threaded to receive the nuts 11. A pairof bolts 12 pass through the transverse plates and a depending plate 13 `is connected with each bolt between-the transverse plates by having its up] oer,edge rolled to'formfan eye through which the bolt passes. These eyes form spacers forthe transverse plates. A toothed aw forming member 14 is suit'- ably connected with the inner face of the lower end of each plate 13 and springs 15 have their ends connected withthe plates 13 l and tend to hold the plates in a position with the jaws 14 engaging the web of a rail A on which: the device is placed. When the device is held on a railby the jaws, the shoe 5 will engage the tread' part of the rail. A

cammember 16 is fastenedto the inner face of'each plate 13 and the shaft 10v passes through the platesand the cam members and ardouble ycam member 17 is carried by the shaft and has its cam parts engaging the cam members 16. A ratchet wheel 18 is carried by the cam member 17 and a handle 19Vis attached to a hub part 20 which is rotatably arranged onthe member 17. A pawl 21 is slidably arranged in the hollow handle and is normally pressed into engagement with the ratchet wheel by a spring 22 in the handle, Thus by manipulating the handle, the member 17 can be given a rotary movement so as to cause its cam faces, engaging the cam members 16, to force the plates 13 outwardly against the action of their springs so as to move the jaws 14 into the housing and thus permit the device to be removed from the lrail. r The handlemay be lockedvwith the jaws in gripping` position through means of the lock 23 suitably connected ywith the device and having its staple passing over the handle. Of course, the handle must be brought back to its lowered position before it can be locked, but this can be done without moving the cam, as on the return movement, the pawl 21 will ratchet over the teeth of wheel 18.

The lower front corner of each plate 1 is formed with an extension 24 which is of channel shape in cross section and a block 25 of wood or the like is supported by these extensions and is fastened thereto by the screws 25 and one of the bolts 8 which passes through the side plates 1. This block has a tapered front portion, the upperftace oi which is of arc shape, and a metal plate 26 is fastened to said face. A second plate 27 is formed with or.connectedto `thelower end of the plate 26l and is fastenedtothe lower face of the block and has a thickened part which is toothed on its under face, as shown at 28, to form a shoe for 'engaging a tread part of the rail.

' From the foregoing it will be seen that the Y device can be placed on a rail with 'the tapered end of the blockitting in the space loetween a portion of the wheel and the rail, as shown in Figure 1, the device being held against slippage on the rail by the toothed shoes 5 and 28 engagingfthe tread part of the rail and'bv the jaws 14: engaging the web of the rail. Whenthe device is tonvbe removed from the rail, itis simply necessary toturn the cam member 17 by the handle to force the jaws 14 away 'from the Vrailso that the device can be moved upwardlyl oil' the rail. `1 d Y I alsoprovide the chains 29 for fastening the device tothe wheel, as shownin Figure '71, the ends ot' the chainsbeing connected with one of the bolts V8 Aand the other ends vof the chains being connected together by the member 30 which has a keyhole shaped slot therein. A.. portion of the chain ispassed around the rim' of the wheel in front of one of the spokes, as shown in 'Figure 1` so'that movement of the wheel in the direction ofthe arrow shown in FigureA 1 willtend to torce the wedge part ofthe device under the wheel, which willprevent further movement of the wheel.

It is thought from the foregoing description that the advantages and novel features ot the invention will be readily apparent. y

It is to be understood that changes may be made in the construction and in the combi.- nation and arrangement of the several parts, provided that such. changes fall within the scope of the appended claims.

That I claim is yl. A stop block for holding the 'wheel of a .Y car on rail, comprising a member having alchannel in its bottom for fitting over a rail and a tapered end for fitting in the space between the rail and a portion of a wheel, spring actuated clamping jaws carried by the member for clamping t-he web of the rail and manually operated means for moving said jaws into inoperative position.

2. A stop block for holding the wheel of a car on a rail, comprising a member having a channel in its bottom for tting over a rail and a tapered end for fitting in the space be-V tween the rail and a portion of a wheel, spring actuated clamping jaws carried by the member for clamping the web of the rail and manually operated means for moving said jaws into inoperative position, the top wall of the'channel having toothed -portions .thereon tor engaging the tread of thev rail.

3. A stop block for preventing movement of a wheelvota Caron a rail of a track, comprising a" housing 'having achannel in its botto1nfitting over a rail, a tapered member connected with the housing having its tapered part fitting in the vspace formed by a portion of the wheel and a part of the rail, toothed shoes on the `topwallof the channel for en` gaging the tread -partof the rail, vertically arranged plates in the housing pivotally sup ported at their upper ends, jaws on the lower ends of the plates orengaging the web of 'a rail,springs for'normally holding the plates with the jaws in engaging position, cam 4parts connected with the plates, a cam member rotatably supported'in the housing andhavingv its cam faces engaging the cam' parts'and-'a' handle for rotating the cam member."

4. A'stop block for preventing movement of a wheel of. acar on a rail of a track, com-- prising a housing having a channel in its -bot-V tom-fitting over a rail, a `tapered member connected with thehousing having its tapered part fitting in the space formed by a portion ofV the wheel and apart of the rail, toothed`- shoes on the top wall of the channel for engaging the tread part of the rail, vertically 'arranged plates'in the housing pivotally'sup ported at their upper ends, jaws on thelower ends of the plates orengaging the webof a` rail, springs' Vfor normally holding the plates'with the jaws in engaging position, camV parts connected with the plates,*a` cam member rotatably supported inthe housing and having its cam faces engaging the 'cam parts, a handle for rotatingthe cam member and means for locking the handle against movement. A n

5.- A stop-block for preventing movement of a wheel of a car on a rail of a track, ycom-1 prising a housing' having a channel in its bottom for receiving part of a rail, toothed shoes connected with the bottom wall ofthe channel for engaging the tread of a rail, a tapered part connectedwith the housing for litting in the space between a portion of the wheel and the rail, a pair-of plates pivotally 'supL ported in the housing at their upperends', jaws at the lower ends of the plates for engaging the web lof arail,y spring means 'for holding the plates with: the jaws in `engaging position, camparts on the plates, a s'haft'carried by the housing andpassing through the plates and the cam parts, a cam member on the shaft and having its cam faces engaging the cam parts, a ratchet Wheel connected with the cam member, a handle movably connected With the cam member, a spring pressed pawl carried by the handle for engaging the ratchet Wheel7 a lock for holding the handle against movement and a chain connected with the housing and adapted to be passed varound a portion of the Wheel.

In testimony whereof I afiX my signature.

ROBERT L. CREWS.

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