USRE11348E - timms - Google Patents

Description

2 Sheets-Sheet 1.

J. TIMMS. GAB. GUUPLING.

No. 11,348. Reissued June 2"?, 1893.

Witwe-sooo.

. 2 Sheets-Sheet 2. J. `TIMMS.

GAR GOUPLING. I

Reissued June 27, 1893.

UNITED STATES I PATENT OFFICE;

JAMES TIMMSLOF COLUMBUS, OHIO, ASSIGNOR TO. THE TIMMS v.AUTOMATIC OAR COUPLER COMPANY, OF SAMEPLACE. i s n ,'cAR-couPLiNc.' h

' SPECIFICATION forming part of Reissued Letters Patent No." Y11,1348', datedJ-une 27, 1.893. 'I

original-1t. 450,539, dma piu 14,1891. Application-aframe-sitiJammu.1393. serielle. 459,031.

automatic hook car-couplers; and it consistsy in certain features of construction and in 4combination off parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure lis ,a plan, a portion of the draw-head being "broken away to showthe internal construe l tion. Fig. 2 is a side elevation. Fig. 3 is an len d elevation. Fig. 4 is a view in perspective showing the coupler in position open'. A Fig 15 is a viewin perspective, a portion of the "guard-arm being broken away to showthe internal' construction.- Fig. 6` is a view I'in block detached.

o Arepresentsthedraw-bar;- B, thedraw-head C, the guard-arm of the draw-head, and D the.

knuckle, the latter operating inthe chamber of the draw-head, to which latter the knuckle is pivotally secured by means of pin Bf'. The guard-arm is also chambered to accommodate the tilting gravity locking-block E, known as the lock, the latter chamber communicating with the chamber of the draw-head,- wherek;

by the locking-arm D' of the knuckle, known usually as the knuckle-tongue, may swing into and out ofthe chamber of thev guardarm in coupling and uncollpling.

The lock E (shown more clearly in Fig. 7) has a broad en d presenting toward the center of the draw-head, and from thence the lock tapers oi and is curved somewhat downward, terminating in a roundedvend e. The latter serves as a pivotal bearing for the lock, and being stepped or seated in a corresponding depression in the lower wall of the guard- 4 arm the lock is thereby retained in position 5o without other fastening. For tilting the lock in a vertical plane the lock isprovided with perspective showing the knuckle detached.V Fig..7 is a view -in perspective of the locking,

suitable hole in the end wallof the-guardsarm, the outer end of the link having'usnally an eye f, that mayserve as a handle,or may serve in attachingl other links, rods, chains, cables (notA shown) that may lead, for instance, to the side of the car', or through themedium, for instance, of suitable bell-crank lever or levers may lead tothe top ofthe link F, the latter extending outfthrough a ca r, or to any point `where it may be desired..

The-locking arm or tongue D has a head D, .elongated laterally-that is to say, elongated in the direction of its throw, and to such an vextent that this head is never withdrawn from under theflock in opening the knuckle,

as in uncouplin'g.V When the knuckle is closed, as in coupling, the lock falls by gravity in front ofv the tongue or the head thereof, 'and in all other operative positions of the knuckle the lock simply rides on head Dand lthe slight friction thus caused is about all the resistance encountered in closing the knuckleV that is te say, in coupling the cars.y As 'a child can easily close the knuckle, tfollows that carsfor coupling purposes need not bev brought together with violence, and if the cars approach each other so closely that the knuckle is closed by contact with the knuckle of an opposing draw-bar the locking of the knuckle will thereby accrue with certainty. The lock when depressed overlaps the knuckle-tongue and head so far as to furnish ample wearing surface, and the locking accrues so far from the fulcrum of the knuckle that any wearing of these parts willV not materially affect the closed or locked positionof the knuckle. lIn the closed position ofthe knuckle its faces or shoulders d2k abut against corresponding'faces or shoulders t, on the draw head or casing and thereby constitutes the primary stop for the knuckle. These bearing faces or shoulders being arranged paralleler substantially parallel to the buffing face of. the knuckle and extending on opposite sides of the pivotal bearing B', atlord extended transverse bearings at right angles to tlie direction of the buiing strains or blows thereby causing such strains or blows to be transmitted squarely against the draw-head; but if the lknuckle be closed with great violence, and such an occurrence, more especially IOO incouplingtreight cars, is likely to be the rhle rather than the exception,the wall ot' the guard-arm or casing might and probably -ready mentioned, the secondary stop being.v located and constructed as shown, to wit: stop a is Ausually cast integralwith the draw-head,

and is preferably of the T-sha'ped variety shown, so that the head thereof will present Y a broad surface. to engage th e opposing tongue of the knuckle. Besides the advantage of thus distributing the force of the blow to different parts of the casing, other advantages accrue, to wit: with two stops located sonie distance apart less lateral strain is had on pin B. vVtrith the construction shown it is evident that any pulling strain on the couplers tends to make the opposing knuckles hug each other more closely, and any slack that may accrue, at the lock or at the fulcrnm of the knuckle does not tend to crowd the knuckle laterally or toward the guard-arin, and hence there is no tendency in such cases for the knuckle to bind on the guard-arm, as would .be the case if the lock were located along the draft-line, in which latter case the tendency of the knuckle would be to crowd toward the guard-arm.

It will be observed that the locking device is entirely closed from the weather, so that ."snow or ice cannot interfere with its operation. By reason of the strength of the parts and the simple character of the lock it would seein impossible for the lock to be broken, disarranged, or become inoperative from any cause. l

1. Acar-coupler of the class indicated, coinprisi n g in t-lie main draw-bar, head, and guardarm, a knuckle, and a co-operating tilting gravity-lock pivotally supported on its lower end, the latter being located iu 'the chamber of the guard-arm in position to ride on the ipposing member of the knuckle iiishifting the latter and in position for falling in front of such member when the knuckle is iii position closed, substantially as set forth.

2. A car-coiipler of the class indicated and having a knuckle provided with a tongue, Such tongue having a head elongated in the 4direction of its throw, 'ot a tilting gravity-lock pivotally supported on its lower extremity and located in the chamber of the guard-arm in position to ride on 'such head when t-lie knuckle isunlocked and in position for falling in front of such head, and thereby locking the knuckle in its closed position, substantially as set forth. r

3. In a car-coupler the combination with a pivoted knuckle having straight shoulderbearings on its upper and lower side` which extend inwardly to a point practically in line with the line of impact of the opposing knuckle, and corresponding straight shoulder-bearings on the diaw-liead-said shoulders torinin g the primary stop ot the knuckle, substantially as set forth.

4. In a car-coupler, the combination with a draw-head5 of apivoted knuckle having shoulder bearings arranged parallel or practically parallel with the puffing face of the knuckle, said bearing being constructed to directly engage corresponding bearings on the drawhead,substantial1y as set forth.

5. In a car coupler the combination with a pivoted knuckle having bearing faces or shouly ders formed parallel or substantially parallel with the buing face of the knuckle and extending laterally on each side of the knuckle pivot, of a draw-head or casing constructed with corresponding straight bearings or faces with which said bearing faces or shoulders en the knuckle, engage, substantiall y as set forth.

'In testimony whereof I sign this specification, in the presence of two witnesses, this 9th day of December, 1892.

JAMES TIMMS. [Ls] iVitiiesscs: g

E. I. SNIVELY, H. G. AFFLECK.

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