US533985A - Car-coupling - Google Patents

Description

2 Sheets-Shet j Patented Fe b.-12, 1895;

(No Model.)

P. BROWN. CAR COUPLNGQ No. &333,985.

2 Sheets-Shet 2. I

(No Model.)

N W 0 R B R CAR COUPLING.

Patntd Feb. 12, 1895.-

I UNITED STATES PATENT OFFICE.

-PERRY BROWN, OF WILMINGTO'N, DELAWARE,

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent 533985, dateol February 12, 1 895.

Application fia Apil it, 1894.

To all whom it may concerns I Be it known that I, PERRY BROWN, a citi zen of the United States, residing at Wilmngton, in the county of New Castle and State of Delaware, have invented certain new and useful Improvements in Car-Couplings, of which the following is a speoification, reference being had therein to the acoompanying drawings;

This invention belongs more particularly to that class of couplings known as twin jaw couplings, and is designed to make such oouplings more convenient in use and more durable;

To these ends the invention consists in the peouliar Construction, arrangement and com binations of parts hereinafter more particularly described and then definitely claimed;

In the aocompanying drawings- -Figure 1 represents a horizontal, longitudinal section of my coupling. Fig. 2 is a vertical, longitudinal section of the same. Fig. 3 is a vertical, transverse section through the line mc, Fig. 1. Fig. 4 is a perspeotive view of 'the movable. jaw and a cam-Washer detached. Fig. 5 is a reversed plan of part of the drawhead.

Referring now to the details of the drawings by letters, A is the body of the ooupling, having its rear end' a, rounded and perforated to fit into a socket piece B, which sets into a pivotal block O, having slots c in its upper and lower ends to receive a bolt D, by which the ooupling, sooket piece and pivotal block are all seoured together.

Between the socket piece B and block O is a piece of thiok sheet rubber b intended to receive and absorb the shook given when the coupling is driven to the rear.

At the rear of the pivotal block C are shown two lugs 'c'by which said block may be conneoted with any convenient part of the draft meohanism. In my application, Serial No. 502,572, for a patent 'on draft meohanism, filed of even date herewith, I show a mode of oonnecting the parts of my ooupling to a draft mechanism, but as no claim is here made for such connection, further description thereof is unnecessary in this speeitioation.

The movable jaw E has the looking arm Serial No. 507,573 (Ne model.)

thereof so formed as to partially embrace the looking 'pin P at the rear thereof whereby the' hld is much more secure and the endof the arm is not so likely to wear away as where it bears only on the side of the pin.

The wearing face of the jaw is provided with a wearing plate F, the outer edge of which is so shaped as to out under the edge of the jaw as shown in Fig. 1, whereby said plate is more securely held in place than when arranged as ordinarily made.

The jaw is attached to the draw-head by a pin' G having on one side a spline g which runs in a groove e in the side of the hole in the jaw, so thatas said jaw turns, it causes the pin G to turn with it. The lower end of this pin G carries a spring H, one end of which is passed into a hole in the pin and the other end engages with a lug a'u (See Fig. 5.),

The upperear of the knuokle joint is oored outto forma reoess a" to receive arubber or other spring I and a cam Washer J having carns j that drop into notches forrned in the top of the hub e' of the movable jaw freely outward to the coupling position, but

after reaching that spot oamsj begin to rise upon the' raised part of the hub e', and this causes friction by reason of the pressure of the spring I, and it requires oonsiderable force to move the jaw when the oams are on the high parts of the hub, so there is no possibility of the movable jaw swinging too far back accidentally. As the .springH is so arranged as tojcarry the jaw outward to the extremity of its free motion (which is the coupling position) the jaw is always ready for coupling with'a similar coupling, when the looking pin P has been raised as shown in Fig. 3, and yet can be used for coupling with a link when desired, by the exertion of a little more force to push the movable jaw out of the way.

'Attached to theguardarm of the drawhead is shown a guard K which passes transversely along under the draw-head and will IOO serve to prevent the dropping of another coupling on the track in case of `the breakage of said other coupiing. I prefer to attach the same by passing one end through one or more of the ribs of the guard arm and then secure the same by a nut L.

I extend backward the near of the .looking i arm as shown in Fig. 1, so as to make a broad surface for the pin to rest on, when the novable jaw is in the coupling position.

From the above description it will be seen that I have provided a twin jaw coupling D and rubber cushion b, substantiaiiy as de- 20 scribed.

2. The combination in acoupiing, of a movable jaw, a pin G fitted to turn with said movable jaw, and a spring H acting to turn said pin and movable jaw, with a cam Washer J co-acting with notches on the hub of the jaw and a spring I, substantiaily as deavscribed.

3. The combination with the movable jaw E, having a notched hub, of the cam-Washer Jand spring I, substantially as described.

In testinony whereof I affix my signature, in presence of two witnesses, this 5th day of April, 1894.

PERRY BROWN. Witnesses:

THos. E. BOBERTSON, W. H. BARNES.

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