US716773A

US716773A - Draw-gear for railway or like cars.

Info

Publication number: US716773A
Application number: US125940A
Authority: US
Inventors: Allison Dalrymple Smith
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-07-18
Filing date: 1902-10-04
Publication date: 1902-12-23
Anticipated expiration: 1919-12-23

Description

No. 7i6,773.

. Patented necfzs, isozg A. 0. SMITH.

DRAW GEAR FOR RAILWAY 0B LIKE CARS.

Application filed Oct 4. 1902.)

(No Model.)

m/mvrm. elliwoiaj UNITED STATES PATENT OFFICE.

ALLISON DALRYMPLE SMITH, EDINBURGH, SCOTLAND.

DRAW-GEAR FOR RAILWAY OR LIKE CARS.

SPECIFICATION formingpart of Letters Patent No. 716,773, dated December 23, 1902.

Original application filed July 18, 1902, Serial No. 116,107. Divided and this application filed October 4, 1902. Serial No. 125,940 (No model.)

To aZZ whom it may concern:

Be it known that I, ALLISON DALRYMPLE 7 SMITH, a subject of the King of Great Britain, residing at Edinburgh, Scotland, have invented a certain new and useful Improvement in Draw-Gear for Railway or Like Cars, of which the following is a specification.

This invention relates to draw-gear for rail way and like cars, and is particularly well adapted for use in connection with automatic buffer-couplers-such, for example, as are described in an application filed by me under date of July 18, 1902, Serial No. 116,107, of

which this application is a division-but applicable for use with couplings of other descriptions where it is desirable that the drawbar or buffer-head should be capable of lateral play in the draw-plate.

In the drawing is represented in plan view the framework of a car with this invention applied and connected to the form of automatic buffer-coupler described in specifica- 5 through which the plunger passes, as has been usual hitherto, it is preferred to make the opening in the draw-plate 6 approximately the same size as the plunger, but to bevel out laterally the opening in the head-stock 5 in the rear of the draw-plate, so that the plunger is enabled to swivel laterally in the headstock, with the vertical center line of the drawplate as its center of motion.

In order to avoid'the danger that the buffercoupler may be pulled out, owing to the breakage of any part of the draw-gear, a safetycotter'7 may be inserted between the rear of the head-stock and the junction of the plunger and drawbar. The central draw-springs which support the central springs are enlarged laterally, and thus allow lateral deflection of the draw-bar.

When, for example, in the act of coupling on a curve the buifer-head 1 is caused to swivel and thereby the drawgear 2 is deflected, the central spring 8 is also laterally deformed; but as soon as the side strain on the buffer-head is removed the central spring operates to restore the draw-gear and bufferhead to its normal central position.

It is of courseevident that the head-stock 5 may be beveled outward and the draw-gear be caused to pivot on a plate in the rear thereof.

What is claimed is 1. In draw-gear for railway-cars and the like a head-stock, a tapered or countersunk opening therein, a draw-bar in said opening, a main draw-bar in the rear thereof, a hinged connection between said draw-bars, and a spring adapted normally to hold said drawbars in alinement while permitting slight lateral play to the outer one all substantially as set forth.

2. In draw-gear for railway-cars and the like a coupler, ashort draw-bar in the rear thereof, a head-stock provided with a bearingsurface for said draw-bar, a main draw-bar in the rear thereof, a hinged connection between said draw-bars and a spring adapted to act thereon and adapted normally to hold the draw-bars in alinement while permitting the short draw-bar to swivel in the head-stock all substantially as set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

ALLISON DALRYMPLE SMITH.

l/Vitnesses:

PHILIP M. JUSTICE,

A. KNIGHT Ononn.