US539606A - Car-coupling - Google Patents

Car-coupling Download PDF


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US539606A US539606DA US539606A US 539606 A US539606 A US 539606A US 539606D A US539606D A US 539606DA US 539606 A US539606 A US 539606A
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    • B61G3/00Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/04Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling head having a guard arm on one side and a knuckle with angularly-disposed nose and tail portions pivoted to the other side thereof, the nose of the knuckle being the coupling part, and means to lock the knuckle in coupling position, e.g. "A.A.R." or "Janney" type
    • B61G3/06Knuckle-locking devices


(No Model.)
0. G. BILLMAN. GAR GOUPLING. No. 539,606. Patented May 21, 1895.
ff-*#V the parts being shown in the position they oc- UNITED STATES PATENT OFFICE.
SPECIFICATION forming part of Letters Patent No. 539,606, dated May 21, 1895.
Application filed January 16, l 8 95 @o @ZZ whom t may conceive:
Be it known that I, OBED O. BILLMAN, a citizen of the United States, residing at Smithville, in the county of Wayne and State of Ohio, have invented a new and useful Car- Coupling, of which the following is a specilication.
The invention relates to improvements in car couplings.
The object of the present invention is to improve the construction of car couplings having a pivoted knuckle, and to provide an exceedingly simple and inexpensive one, which will possess great strength and durability, and which will be automatic both in the operation of coupling and in setting the parts for recoupling when uncoupled.
The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended.
In the drawings, Figure l is a perspective view of a carcoupling constructed in accordance with this invention and shown applied to a car. Fig. 2is a horizontalsectional view,
cupy when coupled. Fig. 3 is a transverse sectional view. Fig. 4 is a detail perspective view of the locking-pin. Fig. 5 is a similar View of the pin-support.
Like numerals of 'reference indicate corresponding parts in all the figures of the drawings.
l designates a draw-head, provided with a draw-bar and designed to be connected to a car 2 in the ordinary manner, and havingrpivoted to it a knuckle 3, which is provided with an arm 4 arranged to swing in a horizontal recess or cavity 5 of the draw -head. The knuckle operates similar to the knuckle of an ordinary Janney car coupling, and is provided with a perforation and slot, to enable it to be coupled to cars having the ordinary pin and link car coupling.
The knuckle is locked in its connected position, which it occupies when coupled, by a vertically movable locking pin 6, mounted in suitable openings in the top and bottom of the draw-head. The locking pin is provided at its front with a vertical shoulder 7, arranged to engage the end of the arm of the knuckle Serial No. 535,126. (No model.)
and formed by a substantially L-shaped recess in the front face of the head. The pin is arranged within the opening of a substantiallyl U-shaped pin support 8, pivoted horizontally in the drawhead by means of avertical pin 9, and having its sides l0 and 11, which extend forward from the pivot, located at opposite sides or straddling the locking pin.
The side 10 of the substantially U-shaped pin support is arranged to engage a shoulder l2 of the adjacent side of the locking pin, to support the latter in an elevated position preparatory to automatic coupling; and the side 10 extends forward beyond the locking pin, and when the arm of the kn'uckleswings into the recess or cavity of the draw-head incident to coupling, it engages the side 10 and carries it out of engagement with the locking pin, thereby withdrawing the support from the locking pin and causing the same to fall, and the shoulder 7 to engage the arm of the` knuckle to lock the latter rigidly in its closed position.
When it is desired to uncouple or open the knuckle, the coupling pin or locking pin is raised, Vand the knuckle is free to swing open,
and in'opening its armengages the side 1l of the substantially U-shaped pin support, swinging the latter and causing the other side 10 to vassume a position beneath the shoulder 12, whereby the operation of opening the knuckle automatically s'ets the parts for automatic coupling.
The side 1l of the pin support has its inner end slightly curved, land diverges from the other side forming a slight bevel, and permitting the armvof the knuckle to swing past it when the knuckle closes, in order to avoid any liability of the locking pin being accidentally released, and allowed to fall.
The shoulder l2 is inclined, and the side 10 Vof the pin support is set at a slight inclination transversely, to permit it to interlock partially with the inclined shoulder, to prevent the locking pin from falling accidentally, or of being released by any other means than the action of the arm of the knuckle.
The arrangement of the arm of the knuckle and the disposition of the substantially U- shaped pin support, causes the latter to receive its motion from, and be entirely actuated by the movement of the knuckle.
The operation of uncoupling is performed from the side of the' car, by means of a transverse rock-shaft 13, disposed horizontally on one end of the car and journaled in suitable bearings thereof, and provided at its outer end with a depending crank handle, and at its inl ingly mounted in suitable guides of the car,
and terminating atthe top thereof in a han dle loop. The chains provide a flexible connection between the arm of the rock-shaft andthe locking pin and the operating rod; and
the operation of uncoupling may be readily performed from the top or sides of the car.
If desired, the transverse rock-shaft maybe extended entirely across the car, and any suitable means may be provided, whereby the operation of uncoupling may be performedfrom the platform of acoach, or the like.
The horizontal rock-shaft is provided near its outer end with a shoulder 18, arranged to be engaged by an upwardly swinging prop or brace 19, hingedly mounted b elow the rock-shaft and adapted to be swung upward to engagel the shoulder, to support the locking pin in an elevated position to` prevent coupling.
It will be seen that the car coupling is exceedingly simple and inexpensive in construction, that it possesses great strength and durability, and that it is doubly antomaticin its operation. Itwill also be apparent that the pin support is unaffected by the weather, and does not depend upon the spring or an equivalent, in order to be actuated to perform its function, but that it receives all its motion from the knuckle, and is entirely dependent on the latter and responds to the opening and closing movement of the sam e. Furthermore,
the parts are arranged so as to be protected from injury, and in event of the breakage of any part, it may be readily removed, and a new piece may be quickly substituted.
Changes in the form', proportion, and the minor details'ot" construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.
What I claim is- 1. In a car coupling, the combination of a draw-head,a knuckle pivoted to the drawhead and having an arm, a locking pin ar ranged to engage the arm and retain the knuckle in its closed position, and. a pivotally mounted pin support having opposite sides stradfdling the locking pin, and arranged to be engaged alternately by the arm of the knuckle, one of the arms being arranged to 'support the locking pin in an elevated posiltion, substantially: as described.
2. In a car coupling, the combination of a `draw-head, aipivoted knuckle having an arm, a` locking pinarranged to engage the arm of the knuckle and provided with ashoulder,
`and a pin support pivotally mounted in the `draw-head and having opposite sides straddling the locking pin, one ofthe sides being arranged to be engaged by the arm of the lknuckleto throw itout of engagement with the locking pin, and the other arm being arranged to be` engaged by the arm of the knuckle, whereby the pin support is carried in position to engage the locking pin when `the knuckle is open, substantially as described.
3. In acar coupling, the combination of a draw-head, a knuckle pivoted. thereto and having an ar1n,\a vertically movable locking `pin mounted on the draw-head and provided` `at its front with ashoulder to engage the arm of the knuckle and having at its side an inclined shoulder, and an approximately U- shaped pin support pivotallb1 mounted in the draw-head and arranged horizontally and straddling the locking pin and having one side inclined to interlock with the inclined shoulder, substantially as described.
In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090179549A1 (en) * 2003-04-07 2009-07-16 Semiconductor Energy Laboratory Co., Ltd. Electronic display including a light-emitting element and a color filter sandwiched between two polarizers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090179549A1 (en) * 2003-04-07 2009-07-16 Semiconductor Energy Laboratory Co., Ltd. Electronic display including a light-emitting element and a color filter sandwiched between two polarizers

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