US780235A

US780235A - Car-coupling.

Info

Publication number: US780235A
Application number: US19728204A
Authority: US
Inventors: William S Schroeder; Andrew P Lindholm
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-03-09
Filing date: 1904-03-09
Publication date: 1905-01-17
Anticipated expiration: 1922-01-17

Description

No. 780,235. PTENTED JAN.1'7, 1905. W. S.. SGHROBDER @L A. P. LINDHLM.

GAR UOUPLNG.

APPLIATIoN FILED MAR. e, 1904.

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No. 780,235. PATENTED JAN. 17. 1905. W. S. SCHROEDER @L A. R LINDHOLVJ.

v GAR GUUPLING.

APPLIOATIolr FILED MAR.9,1904.

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No. I780,235.

SATES Patented fanuary 1?, 1905.

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WILLIAM S. SCI-IROEDER AND ANDREW P. LINDIIOLM, OF CHICAGO, ILLINOIS.

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SPECIFICATION forming part of Letters Patent No. 780,235. dated January 17, 1905.

Application led March 9, 1904. Serial No. 197,282.

T0 00H/ tf1/1,0m t may concern.-

Be it known that we, WILLIAM S. Sonnen- D En and ANDREW I). LINDHoLivI, citizens of the United States, residing' in Chicago, in the county of Cook and State of Illinois, have in vented a new and useful Improvement in Car- Uouplers, of which the following is a specilication.

Uur invention relates to improvements in car couplers of the M. C. B. or Master Car- Builders type having' a forked draw-head, a pivotal knuckle, and a gravity-lock; and it relates more particularly to Master Gar-Build ers couplers of the particular type having a gravity-lock consisting' of a longitudinal pivotal locking-bar lying' in the chamber of the drawbar and having a pivotal connection therewith at its inner end and engaged near its outer end by a vertically-moving couplingpin or lifting-pin which is connected in the usual manner by a chain with the lifting-lever.

The object of our invention is to provide a longitudinal pivotal locking-barycoupler of a strong, simple, eflicient, durable, and safe construction in which the longitudinal pivotal locking-bar may be set in position for uncoupling by engaging the tail of the knuckle, in which the front or locking end of the longitudinal pivotal locking-bar may be prevented. from jumping or accidental movement upward when the cars are coupled and the train is in motion, and in which the knuckle may be automatically thrown open.

Our invention consists in the means we employ to practically accomplish this object or result, as herein shown and described-that is to say, it consists in the novel construction of parts and devices and in the novel combi nations of parts and devices herein shown and described, and specified in the claims.

In the accompanying drawings, forming a part of this specification, Figure l is a central vertical section of alongitudinal pivotal locking' bar coupler embodying' our invention.

Fig. 2 is a similar view showing the locking'- bar in its raised or lock-set positionMthat is to say, when the coupler is set for uncoupling. Fig. 3 is a horizontal section on line 3 3 Fig. 4 is a plan view, partly in of Fig. l.

section, on line 4 4 of Fig'. l. Fig. 5 is a vertical cross-section on line 5 5 of Fig. l. Fig. 6 is a detail perspective view of the locking' or lifting pin. Fig. 7 is a side elevation of the longitudinal pivotal locking-bar. Fig. 8 is a front end view of the same. Fig. 9 is a detail view of the knuckle throwing lever. Fig. l() is a plan view of the knuckle, and Fig'. 11 is a detail plan view showing' the opening in the draw-head for the lifting-pin. Fig'. 1Q is a cross-section of the locking-bar.

In the drawings, A represents the drawbar; Af, the forked draw-head, having the customary pivot-arm A2 and guard-arm A3.

B is the knuckle, pivoted to the draw-head by the pivotpin O and having a tail B', which is engaged by the longitudinal pivotal locking-bar I), which lits and lies in the chamber a of the draw-bar. The tail B of theknuckle has at its roar end a transversely extending inclined face I) to engage the curved or1nclined face (Z of the locking-bar D, and thus automatically lift the locking-bar by the closing' movement of the knuckle, the inclined face of the knuckle-tail thus passing under the locking-bar. The tail of the knuckle is also furnished with a recess or seat 7) on its inclined face b to receive a lock-set leg or projection d', which projects downwardly from the locking-bar I), near the front end thereof. 'Ihc lock-set leg or projection (Z of the locking -bar is made hook shaped o1' 'furnished with a forwardly-projecting lip cl2, which lits under the extreme rear end of the knuckletail, thus causing the knuckle-tail itself when the knuckle is closed to keep or lock the front end of the locking-bar from jumping' or moving' upward accidentally when the cars are coupled together and the train is in motion.

F is the coupling or lifting' pin, by which the outer or free end of the longitudinallyextending pivotal locking-bar D is operated or lifted to unlock the coupler or permit the knuckle to swing open.

F' is a clevis pivotally connected to the upper end of the lifting-pin F and connected by a link F and clevis F3 with the lifting'- lever F1, and Ur is the lmuckle-throwing lever.

The draw-bar is provided inside the cham ber c on its lower web or ioor with integral saddles or ribs d, having elongated pivot notches or recesses c2 therein to receive the pivot-lugs (Z3 at the rear end of the lockingbar D, the pivot notches or slots 602 being long enough to permit the necessary longitudinal movement of the locking-bar to enable its lock-set leg or projection d to engage the corresponding lock-set seat or recess b on the tail of the knuckle. The elongated notch or recess a2 has an inclined bottom a3, which aids in returning the locking-bar longitudinally to position when in its forward position, and thus also diminishing the inclination of the pivotal locking-bar when its front end is raised to its lock-set position on the knuckle-tail.

The locking-bar D is provided at its front end with a chamber dt, having an opening Z5 large enough to receive the head or shoulder f on the coupling or lifting pin F and provided with a slot CZ to receive the web f, which connects the head or shoulder f with the coupling-pin F.

The draw-bar A is provided with a guiderib c* to engage the front or enlarged end of the locking-bar D to keep the same in position laterally, while permitting the lockingbar to be raised as required at its front end. The lifting-pin F iits in an opening a5 in the top wall a6 of the draw-head and is provided with an irregularity or rib f2, which prevents its being turned wrong when it is put in place. To cause the locking-bar D to be thrown or moved longitudinally forward as it is raised by the lifting-pin F, the draw-head is provided with a projection or fulcrum c7 to cause the upper end of the lifting-pin to tilt backward and its lower end forward when the lifting-pin is acted upon by the lifting-lever Ff. To further insure the proper backward tilting of the lifting-pin and the longitudinal forward movement of the locking-bar when the same is being raised, we provide the clevis F with an arm f3, which engages a flange ft of the lifting-pin, and thus limits the pivotal movement of the clevis on the pin. The projecting arm on the clevis also prevents any possibility of the links of the lifting-chain becoming kinked or entangled. 4

To set the locking-bar in its position for permitting the cars to uncouple when the two adjacent cars are separated, the locking-bar is raised or lifted by the lifting-lever through the lifting-pin F, this operation simultaneously moving the locking-bar slightly longitudinally forward, so vthat its lock-set leg CZ will engage and rest upon the lock-set seat ZJ on the tail of the knuckle, and thus hold the lock in its raised or lock-set position. Vhen the coupled cars are now pulled apart, the tail of the knuckle rides under the lock and permits it to drop.

The knuckle-throwing lever G has a pivot arm or projection g, which fits in a suitable notch lor recess as in the draw-head, and an actuating web or arm g', which tits over the front end of the locking-bar D and is engaged thereby when the front end of the lockingbar is sufficiently lifted. The knuckle-throwing lever G also has a curved or horn-shaped arm g2, which engages and follows the tail of the knuckle to throw the same open. The knuckle-throwing lever has both a rocking or rotary movement about its pivot-arm g as an axis and also a swinging or tilting movement about the eXtreme end of its pivot-arm g as a fulcrum, thus giving the curved or hornshaped operating-arm g2, which engages the knuckle, a combined or compound movement that causes it to properly follow the path of the tail of the knuckle in pushing or throwing the knuckle open. When the fiat arm g of the knuckle-throwing lever G is engaged by the front end of the locking-bar D as it moves upward, it tends to tilt or swing the knuckle-throwing lever about the end of its pivot-arm g as a fulcrum for the lever and at the same time to rock or rotate the knucklethrowing lever about its arm g as an axis, thus giving its curved or horn-shaped operating-arm g2 a compound movement, the resultant of these two motions of the lever which causes the knuckle-throwing lever, though mounted above the knuckle, to keep its curved arm g2 in proper engagement with the tail of the knuckle as it swings open in its horizontal circular path. To cause the fiat or web arm g of the knuckle-throwing lever G to be properly engaged by the locking-bar D, the locking-bar is provided at its frontend with a wing or projection 6X7, that engages the web or flat arm of the knuckle-throwing-lever after the front end of the locking-bar is raised sufliciently to permit the tail of the knuckle to move under the same. rIhe chamber a in the draw-head for the arm g2 of the knucklethrowing lever G has a rib (om extending across it to serve as a guide, rest, and support for the knuckle-throwing lever.

We claiml. In a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinally movable rlocking bar lying lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set leg or projection, and a coupling or lifting pin connected with the front or free end of the locking-bar, said knuckle having on its tail a lock-set seat or recess to engage the lock-set leg or projection on the locking-bar when the same is raised and moved longitudinally forward by the lifting-pin, substantially as specified.

2. In a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinally movable locking bar lying lengthwise in the chamber of the draw-bar,

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and provided at its front end with a lock-set leg or projection, a coupling or lifting pin connected with the front or free end of the locking-bar, said knuckle having' on its tail a lock-set seat or recess to engage the lock-set leg' or projection on the locking-bar when the same is raised and moved long'itudinally forward by the lifting-pin, and a knuckle-throwing' lever having' a pivot-arm eng'aging a recess in the draw-head, an arm adapted to engag'e the front end of the locking-bar when the same is raised, and an operating-arm engaging the tail of the knuckle to throw the l knuckle open, substantially as specified.

3. In a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a longitudinal pivotal locking-bar, of a pivotal and longitudinallymovable lockingbar lying lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set leg or projection, and a coupling or lifting pin connected with the front or free end of the locking-bar, said knuckle having' on its tail a lock-set seat or recess to engage the lock-set leg or projection on the locking-bar when the same is raised and moved longitudinally forward by the lifting-pin, said lock-set leg' or projection on the locking-bar having a forwardly-projecting lip engaging' the tail of the knuckle to prevent the frontend of the locking-bar from jumping or moving upward accidentally, substantially as specified.

4. In a car-coupler, the combination with a pivoted knuckle, a forked draw-head and a draw-bar having a chamber to receive a long'itudinal pivotal locking-bar, of a pivotal and longitudinallymovable locking bar lying' lengthwise in the chamber of the draw-bar, and provided at its front end with a lock-set leg or projection, a coupling or lifting pin connected with the front or free end of the locking-bar, said knuckle having on its tail a lock-set seat o1' recess to engage the lock-set leg or projection on the locking-bar when the same is raised and moved longitudinally foi'- ward by the lifting-pin, and aknuckle-throwing lever Lhaving a pivot-arm engaging a recess in the draw-head, an arm adapted to engage the front end of the locking-bar when the same is raised, and an operating-arm eng'aging the tail of the .knuckle to throw the knuckle open, said knuckle-throwing' lever having a rocking' movement about its pivotarm as an axis, and a swinging or tilting movement about the end of its pivot-arm as a fulcrum, substantially as specilied.

5. In a car-coupler, the combination with a forked draw-head, and draw-bar, of a pivoted knuckle and a pivotal locking-bar lying' lengthwise in the chamber of the draw-bar, and a lifting-pin, said locking-bar and the tail of the knuckle being' furnished with intcrengaging lock-set devices, substantially as specified.

6. In a car-coupler, the combination with a forked draw-head and draw-bar, of a pivoted knuckle and a pivotal locking-bar lying lengthwise in thc chamber of the draw-bar, and a lifting-pin, said locking-bar and the tail of the knuckle being' furnished with interengaging lock-set devices, said lifting-pin having' a pivotal clevis provided with an arm or projection engag'ing the lifting-pin to limit the pivotal movement of the clevis in respect to the lifting-pin` substantially as specified.

7. In a car-coupler, the combination with a forked draw-head and a draw-bar, of a pivoted knuckle and a pivotal locking-bar lying' lengthwise in the chamber of the draw-bar, and a lifting-pin, said locking-bar and the tail of the knuckle being furnished with interengaging lock-set devices, a pivotal clevis provided with an arm or projection eng'aging the lifting-pin to limit the pivotal movement of the clevis in respect to the lifting-pin, said lifting-pin having a fulcrum-like bearing on the drawhead to cause the locking-bar to move slightly longitudinally forward as it is raised, substantially as specified.

8. In a car-coupler, the combination with a 'forked draw-head and draw-bar, of a pivoted knuckle and a pivotal longitudinally-movable locking-bar lying lengthwise in the chamber of the draw-bar, and provided with a lockset leg or projection, and a lifting-pin, said knuckle being provided with a lock-set seat or recess, substantially as specified.

9. In a car-coupler, the combination with a forked draw-head and draw-bar, of a pivoted knuckle and a pivotal longitudinally-movable IOO locking-bar lying lengthwise in the chamber of the draw-bar, and provided with a lockset leg' or projection, and a lifting-pin, said knuckle being' provided with a lock-set seat or recess, said lock-set leg on the locking-bar having a lip engaging the tail of the knuckle to prevent the front end of the locking-bar jumping or moving upward accidentally, substantially as specified.

l0. In a car-coupler, the combination with a forked draw-head and draw-bar, of a pivoted knuckle and a pivotal locking-bai' lying lengthwise in the chamber of the draw-bar, and provided with a lip at its front end engaging the tail of the knuckle to prevent the front end of the locking-bar from jumping or moving' upward accidentally, and a liftingpin connected to the locking-bar, substantially as specified.

W ILLIAM S. SCI-IROEDER. ANDREW I). LINDHOLM. I/Vitnesses:

H. M. MUNDAY, WVILLIAM A.. (jl-menu.

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