US577562A - Car-coupling - Google Patents

Description

Y K S .T I L O D.. A, S d.. d o M 0 m GAB, ooUPLING.

No. 577,562. Patentedeb. 2s, 1897.

yNITE SIMON A. POLITSKY, OF BOSTON, MASSACHUSETTS.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 577,562, dated February 23, 1897.

Application led June 18,1896. Serial No. 596,020. (No model.)

T0 a/ZZ whom it may con/007%:

Be it known that I, SIMON A. PoLrrsKY, of Boston, in the county of Suffolk and State of Massachusetts,have invented certain new and useful Improvements in Car- Couplings, of which the following is a specification.

This invent-ion relates to car-couplings, and has particular reference to that type in which a pin is employed to imite spring-operated jaws.

The 'object of the invention is to provide a substitute for the ordinary link used in coupling freight-cars and which may be used in connection with the ordinary draw-bars which have been heretofore united by a'plain link.

To these ends the invention consists in the construction and combination of parts, substantially as hereinafter described and claimed.

In the drawings, Figure l represents a plan view of the coupling complete. Fig. 2 represents a perspective view of one of the jaws and of the coupling-pin, looking in the direction from the car to which said jaw would be connected. Fig. 3 represents a side elevation of the two jaws of the coupling united.

Since the two jaws of the coupling are duplicates of each other, I will rst describe the construction, while referring particularly to Fig. 2.

a represents a block ory plate having a loop b, adapted to be connected to the ordinary draw-bar head fr of a car by means of a pin o. Projecting from the front of the plate a is a standard d, having at one side thereof a block e, provided with a recess lto receive a spring-pressed plunger f. (Shown more fully in Fig. l.) vThe front end of the standard d is horizontally slotted to form ears g g, between which is received the arm h of the jaw t, said arm being pivotally connected between the ears g g by means of a pin or bolt j. The arm h is provided with an offset h', against which the plunger f rests, said plunger acting, therefore, to yieldingly press the jaw in the direc- .tion toward which its cam-surfaces face.

Each jaw is` cut away at its center between the cam-surfacesk in order that the arm h of the coaeting jaw may be permitted to have some vertical movement to accommodate cars of different heights. The jaw is recessed, as

at Z', back of the cam-surfaces 7o for a purpose presently described, and attached to the back of the arm h is an L-shaped projection m.

The pin used to couple the jaws together consists of a vertical coupling portion n, having an odset overhanging arm n', which eX- tends downward at some distance from the portion n.

The arm h of the jaw is provided with a hole n2, adjacent to the back of the jaw, to receive the pin n.

The operation is as follows: When the pin n is inserted in the hole n2 of either of the coupling members and the car having the corresponding coupling member is moved up, the two jaws yield laterally, while the cam-surfaces pass each other, and then the recess Z of .the jaw which is not provided with a pin f`- will en gage with the portion of the pin above and below the arm of the jaw carrying said pin, as shown in Figs. l and 3. The operation will be the same, regardless of which jaw carries the pin, or a pin may be placed in each jaw.

The obj ect of the arm 0%/ of the pin is to enable the coupling-jaws to be separated from each other while the cars are at rest and held so that when the engine starts forward the jaws will not rengage. Thisis accomplished when the train is at rest by temporarily withdrawing the pin n, then pressing the two jaws apart and reinserting the pin fa, with its arm n., in the space back of the hook-shaped pro-J jection m of the jaw other than that which carries the pin n. This keeps the two jaws separated, so that if the engine starts the two .jaws will slip past each other without rengaging. I claiml. A supplemental head for a car-coupling comprising in its construction means for removably connecting it with the draw-bar of a car, and having a cam-shaped forward portion or jaw pivotally connected with the base portion; a spring for moving the jaw portion relatively to the base portion, and a pin for uniting the two jaw portions.

2.' In a car-coupling, the combination with the arm h pivoted to a suitable support and having the jaw at its outer end provided with the recesses l and having the hole n2, the L- IOO shaped projection m, and the pin n having the oiset and downwardly-projecting portion n.

3. In a oar-Coupling, the Combination with the plate ay having the loop b and earryin g a spring-pressed plunger f, of the arm 7L pivotally connected with the plate a and having an offset 7L adapted to be engaged by said plunger f, said arin 7L being provided with the jaw i having two Cam-surfaces k and having the hole n2 and the L-shaped projection m,

and the pin n having the offset and downwardly-projecting portion n.

In testimony whereof I have signed my naine to this speoication, in the presence of I 5 two subscribing Witnesses, this 11th day of May, A. D. 1396.

SIMON A. POLITSKY.

Witnesses:

C. F. BROWN, A. D. HARRISON.

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