US441707A - Thirds to r - Google Patents

Description

(No Model.)

C. SGHRYVER. GAR GOUPLING.

No. 441,707. Patented Dec. 2, 1890.

UNITED STATES PATENT OFFICE. A

CHARLES SCHRYVER, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF TIVO- THIRDS TO R. C. MASSIEAND JAMES A. SCOTT, OF RICH HILL, MIS- SOURI.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 441,707, dated December 2, 1890.

Application filed April 14, 1890.

To @ZZ whom it may concern.-

Be it known that I, CHARLES ScHRYvER, a citizen of the United States, residing at Boston, in the countyvof Suffolk and State of Massach usetts, have invented certain new and useful Improvements in Car-Couplers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in car-couplers, but'is more especiallyintended as an improvement upon the construction shown and described in Letters Patent No. 255,984, granted to Thomas Jefferson Hilliard, April 4, 1882, and has for its object to greatly facilitate the uncoupling of the cars by furnishing means wherebythe connection between the cars may be thrown off from one car, instead of raising` the two hooks in succession and from both cars, as is necessary in the Hilliard patent above referred to.

I/Vith these ends in view then my invention consists in the details of construction and combination of elements hereinafter fully eX- plained, and then specically designated by the claims.

In order that those skilled in the art to which myinvention appertains may fully understand its construction and operation, I will proceed to describe the same in detail, referring by letter to the accompanying drawings, forming a part of this specification, in which- Figure lis a perspective of the ends of two cars coupled with my device; Fig. 2, a side elevation of they draw-bars and hooks at the moment of uncoupling; Fig. 3, a sectional longitudinal section of one of the hooks, showing the norm al position of the link and chain, and Fig. 4 a plan view of one of the drawbars. Fig. 5 is a view showing the convex surfaces in the draw-bar and the convex bearing-surfaces.

Similar letters denote like parts in the several ligures of `the drawings.

A are the coupling-hooks, whose rear ends are pivoted by transverse pins a within the Serial No. 347,801. (No model.)

draw-bars C in precisely the same manner as in the patent to Hilliard. The ear e (shown upon the back of the coupling-hooks in the Hilliard patent for the attachment of the chains) is omitted in my construction, and in place thereof I form recesses B in the hookshoulders and back of the hooks, as seen at Fig. 3 of the drawings.

Pins D extend through the shoulders and through the recesses, and large links E encircle and hang from these pins. Lifting-chains F are attached one end to the links and the other to the transverse windlasses G. (Shown in Fig. l and in Hilliards patent.)

The chains F, I make of sufficient length to lie slack Within the recesses B, and so allow links E to hang vertically from the pins when at rest. The purpose of this arrangement will be presently explained.

The bearing-surfaces H ot' the couplinghooks and the draw-bars C have recesses I, the forward walls of which .I are convex in cross-section and are adapted to be engaged by the convex surfaces H in the hooks, as shown in Fig. 5.

The operation of my improvement is as follows: Vhen two cars provided with this coupler come togetherto eect a coupling, one of the pivoted hooks will ride over the other and the beveled surface of the under hook striking the edge of the draw-bar will be :raised up thereby over the edge and Will drop wit-hin the recess and there hold. The upper hook rides upon the lower and engages with the hooked shoulder upon its back, thus locking the coupling in the same manner as in the Hilliard patent. In the said patent to Hilliard the uncoupling is effected by irst raising the topmost hook and then the hook that was below it. In my construction the upper hook holds perfectly over the shoulder of the under hook and locks the coupling, for the link E hangs vertically from the 'pin D entirely within recess B, and the slack chain lies also within said recess. To uncouple with my construction it is only necessary to lift on the chain of the under hook by means of the windlass, when link E is turned upon pin D as a center and raises the point of the upper hook, so that it will be clear of the point of the shoulder. This operation is clearly illustrated by Fig. 2. A continuation of the lift upon the chain will raise the under hook out of engagement with its draw-bar, and the cars are thereby uneoupled. Either of the two hooks may in eiecting a coupling ride over the other and serve as the upper or locking hook.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In combination with the pivoted hooks having recesses, as described, in the shoulders andbacks thereof, the links hung in said recesses by transverse pins and having attached thereto the lifting-chains and adapted by the tighteningof said chains to raise thc top hook out of engagement with the hooked shoulder of the under hook, substantially as set forth.

2. The combination of the pivoted hooks A, having hooked shoulders, and recesses 'B in said shoulders and backs of the hooks, links E, hung in said recesses, chains F, attached to said links, and windlasses G, adapted to lift said chains and thereby raise the hooks,snbstantially as and for the purpose described.

In a car-coupler, the combination of the recessed draw-bars provided with shoulders, the coupling-hooks pivoted within said bars and having` shoulders on the top and bottom surfacesmhereby engagement with each other and with the draw-bar is effected, lifting-links pivoted Within the top shoulders of said hooks, and meansas chain and windlass-for operating said links, substantially as shown.

4. In a car-coupler, the combination of the recesseddraW-bars with the coupling-hooks pivoted therein, both of said bars and hooks having engaging shoulders which are convex in cross-section, as set forth.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES SCIIRYVER.

itnesses CHARLES BUTTRICK, J AMES I`IZLEY-

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