US344037A - Car-coupling - Google Patents

Description

(N0 Modem 1 I V J. G. PARMER 85 J. W. WHITE.

OAR COUPLING. No. 344,037. Patents gune 22, 1886.

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UNITE STATES PATENT Critter. I

JAMES C. FARMER, OF PROVIDENCE, RHODE ISLAND, AND JOHN IV. WHITE,

OF DEDHAM, MASSACHUSETTS.

CAR- COUPLING.

SPECIFICATION forming part of Letters Patent No. 344,037, dated June 22, 1886.

' Application filed January 4, 1886. Serial No. 187,596. (No model.)

To all whom it may concern:

Be it known that we, JAMES C. FARMER and JOHN \V. WHITE, respectively of Providence, in the county of Providence, State of Rhode Island, and Dedham, in the county of Norfolk, State of Massachusetts, have invented a certain new and useful Improvement in Railway-Car Couplings, of which the following is a'description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a top plan view of our improved coupling; Fig. 2, a vertical longiing partsin the different figures of the drawings.

Our invention relates more especially to the couplings employed for coupling the tender of the locomotive to the forward car in the train; and it consists in a novel construction and arrangement of the parts, as hereinafter more fully set forth and claimed, the object being to produce a more effective and otherwise desirable device of this character than is now in ordinary use.

It is well known to engineers and others in charge of railway trains provided with what are known as the Miller Coupling, that in turning short curves the draw-bar heads are liable to unhook or become disconnected when unprovided with means for keeping them engaged; also, that it is difficult to keep the slack taken up or prevent backlash between the tender and forward car when the couplings are constructed in the ordinary manner; also,that when so constructed as to cause the buffer to press at all times with sufficient force against the chafing-iron of the car then it-is difficult to readily uncouple the tender and car as required.

To overcome these difficulties and objeo' tions is the object of our invention, and to that end we make use of means which will be readily understood by all conversant with such matters from the following explanation:

In the drawings, A represents the box or casting in which the buffer and draw-bar are mounted, the box being provided with horizontally and rearwardly extending arms B B, connected by the plate C, for supporting the rear end of the draw-bar and its cushioningspring.

It is not deemed essential to. show the car or tender, as these may be of the ordinary form and construction, and the box may be connected therewith in any proper manner.

In Fig. 1 the plate C and cover D of the box A are represented as removed.

A chamber, E, having the bottom 00, is formed in the upper portion of the box A,the side Walls of this chamberbeing each provided with a vertical groove, m, for receiving the key F, and a slide, 12, said slide resting on the bottom at, and being fitted loosely in said grooves.

zontally in the front end wall, I, of the chamber E, said rod being firmly attached within said chamber to a plate, J, provided with an annular horizontally-projecting flange, i. A horizontally-arranged piston-rod, K, is disposed in the chamber E, said rod passing through and being firmly secured in the slide 0.

A plate, L, provided with a horizontally -projeeting annular flange, a, is firmly secured to the slide 2), the flanges i a respectively forming sockets for receiving and holding the ends of a coiled spring, M, which is disposedin the chamber E around the rod K. The forward or outer end of the rod K is reduced in size and fitted to work in a socket, d, formed in the inner end of the rod H. A plate, N, is attached to the rear wall, 0, within the chamber E, and projecting horizontally from this plate there is a wide annular flange, 1?, forming a cylinder, which opens inwardly toward the slide '0. Attached to the rear or inner end of the piston-rod K there is a cup-shaped pis- The bufferrhead G is mounted on a rod or bar, H, which is fitted to slide horiton-head, Q, which is fitted to work in the cylinder P. A pipe, R, provided with a twoway stop-cock, S, passes through the rear wall,

O, of the chamber E and opens through the plate N into the cylinder 1?, said pipe being connected with the ordinary air-tank of the air-brake, which tank is usually disposed under the foot-board of thelocomotive. A rod, '1, is mounted horizontally in flanged plates U, which are fitted to slide in the ways V on the arms B, stops f being provided at the ends of said ways to prevent said plates from escaping therefrom, and a nut, 20, employed to prevent the rod from being withdrawn from the plates. A coiled cushioning-spring, W, is disposed around the rod T, between the plates U, and jointed to the forward end of said rod at 9 there is a draw-bar, X, provided at its forward end with an ordinary laterally-projecting hook, h, adapted to engage a companion hook (not shown) on the forward car of the train. A coiled spring, Y, which acts expansivel y to keep the hook h engaged with its companion hook, is disposed around a rod, Z, in the lower portion of the box A, one end of said spring abutting against the draw-bar X and the other against the sidewall of the box, said rod passing through a slot, t, in the drawbar.

A slot, b, is cut in one of the sides of the box A near its lower end, as best seenin Figs. 3and 4, and journaled to swing laterally in said slot on the rod j there is a locking-lever,

Z. This lever is narrower vertically than the slot 1), and is rigidly secured to the rod j, the

upper end of which rod is fitted to work in a socket, k, its lower end being provided with a hand-wheel, r. A short stud, p, projects upwardly from the floor of the slot 5, said stud being-adapted to enter asocket, a, in the lower portion of the lever Z. The lever Z is of sufficient length to strike one of the draw-bars when said lever is swung around at a right angle to the side wall of the box A, in which it is journaled, and thus keep the draw-bars engaged and from uncoupling when the train passes a sharp curve in the road.

The object of the stud p is to hold the locking-lever a either opened or closed, as desired.

To open the lever, as shown in Fig. 4, the rod j is raised, carrying with it, of course, the lever, and when the rod is sufficiently elevated to permit said lever to clear the stud it is turned until the socket n is brought over the stud and then dropped, thereby causing the stud to enter the socket in the lever and lock it opened.

To close the lever Z, or to lock the drawbars together, the rod j is raised vertically until the stud p is withdrawn from the socket n, and then turned until the free end of the lever engages or nearly engages the draw-bar, after which the lever is dropped, as shown in Fig. 5, the stud p resting against one side of the lever and the end wall, q, against its opposite side, thereby keeping it in position. Any other suitable device for locking the lever either opened or closed may, however, be employed if preferred without departing from the spirit of this portion of our invention.

A lever, 14, is pivoted at 15 to the side of the box A, the lower end of said lever being connected by a chain, 16, with the draw-bar X, for disengaging the draw-barsin uncoup ling in the usual manner. A serrated locking-plate, 18, is attached to the upper portion of the box A for securing the lever when the draw-bars are disengaged. The lever may, however, be pivoted in any suitable fixed support, and any suitable means employed for 'securing it in position when the draw-bars are uncoupled.

In the use of our improvement the stopcock S is opened and air let into the cylinder P, forcing the'piston-head Q, rod K, and slide 0 outwardly, thereby compressing the spring M and forcing the bufier G outwardly to its fullest extent, as shown in Fig. 2. The key F is then inserted in the grooves m to keep the buffer in position and the air let out of the cylinder P, after which the caris coupled to the tender in the usual manner, the bufferhead G being kept pressing forcibly against the chafing-iron of the car by the springM. To uncouple the car, the air is let into the cylinder until the slide '0 is moved forward in its grooves a suiiicient distance to relieve the key F, when said key is removed and the air let out of the cylinder, thereby permitting the spring K to force the piston-rod and pistonhead inwardly and relieve the pressure of the buffer-head against the chafingiron or end of the car, after which the draw-bars may be readily disengaged in a manner which will be readily understood without a more explicit description.

The length of the spring M and its tension are such that when the car and tender are uncoupled and the plate J is against the end I of the chamber E the slide 1) will be nearly at the forward sides of the grooves m, thus enabling said slide to be moved forward by hand a sufficient distance to permit the key F to be inserted in the grooves m, and without the aid of air-pressure in the cylinder P, as described.

The stop-cock S may be located at any convenient point'between the air-tank at the locomotive and the cylinder P.

As the rod orbar H, buffer G, plate J, rod K, plate L, spring M, slide 1;, and piston Q may be all moved longitudinally of the box A in unison for a considerable distance when the draw-bars are uncoupled, the key F withdrawn, and the piston is in its cylinder, it will be obvious that the slack or space between the buffer-head of the tender and chafing-iron or end of the car may be readily taken up or filled either by moving the piston forward by air-pressure or by hand and securing the slide 0 by means of the key; also, that the pressure of the buffer-head on the car may be readily relieved by withdrawing the key, as described,

thereby rendering it comparatively easy to dis- When the key F is inserted, the socket d in the buffer-rod H permits the buffer to be forced inwardly and the spring M to be compressed without moving the rod K or slide 1;.

The key F is preferably made slightly tapering, soas to be readily inserted and withdrawn from the slots m; but, instead of said key, any other suitable device may be employed for securing the slideoin its advanced position when moved forward, as described.

The slide 21 forms an abutment for the inner end of the spring M, and the plate J an abutment for its outer end. I

The rod or bar H is fitted to slide in the head I, but may be fitted to work in any suitable ways or bearings.

We do not confine ourselves to the use of the cylinder P, pipe R, and piston Q, or any other appliances for moving the buffer-head and its immediately'connected parts forward by means of compressed air, as described. Neither do we confine ourselves to using the lever Z or device for locking the draw-bars between the tender and forward car only, as it may be used between any two cars of the train. The buffer may also be used between any two cars of the train, if desired.

It will be obvious that the pipe R, cylinder P, and piston Q may be omitted, if desired, when the buffer-head and its immediately-connected parts are to be moved forward by a hand only. The flanged plate L may also be omitted, if desired, and the inner end of the spring M permitted to abut directly against the slide 1). The arms B B may also be omitted and the rod T and spring XV otherwise mounted.

Having thus explained our invention, what we claim is 1. A buffer-head, a rod or bar on which the buffer-head is mounted, suitable ways for the rod or bar, a cushioning-spring for the buffer,

abutments for the spring, and a key or means for securing the inner abutment in a stationary position after being moved forward, said buffer-head, rod, or bar, and the spring and abutments being adapted to be moved forward a certain distance in unison to take up the slack or reduce the space between the tender and car, or between two cars, and backward a certain distance in unison to reduce the pressure on the buffer-head, and thus enable the draw-bars to be disengaged with greater ease, substantially as described.

2. The head G, rod H, plate J, slide 1;, and spring M, in combination with the box A and key F, or means for securing the slide 1; in position after being moved forward, substantially as set forth.

3. The cylinder P, piston Q, pipe R, and stop-cock S, in combination with the bufferhead G, rods H K, slide 1;, spring M, box A, and key F, or means for securing the slide 1) in position after being moved forward, substantially as described.

4. The rod H, provided with the head G, socket d, and plate J, in combination with the rod K, spring M, slide 12, box A, and key F, or means for securing the slide in position after being moved forward, substantially as set forth.

5. The box A, provided with a slot, 1), and a pin, p, projecting upwardly from the floor of said slot, in combination with the vertical rod j, Working in bearings at the inner end of said slot, and a lever, Z, narrower than said slot, rigidly secured to said rod, and provided with a socket, n, adapted to engage said pin 2 when the lever is lifted and passed over said pin into proper position.

JAMES C. FARMER.

: JOHN W. WHITE.

Witnesses:

O. A. SHAW, L. J. WHITE.

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