US536380A - Brake for railway-cars - Google Patents

Description

(No Model.)

P. GUY, BRAKE PoR RAILWAY GARS. y

Patented Mar. 26, 1895.

.Amm

UNITED STA-Tas'- f PATENT OFFICE.

FRANK GUY,OF AROANUM, OHIO.

BRAKE FoR RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent No. 536,380, dated March 26,1895.

Application led November 27,1894. Serial No. 530,181. A(No model.) l

.T0 all whom t may con/cern:

Be it known that I, FRANK GUY, a citizen of the United States, residing in Arcanum, in the county of Darke and State of Ohio, lhave invented certain new and useful Improve-y ments in Brakes for Railway-Cars, of which the following is a specification.

This invention relates -to certain new an useful improvements in brakes for railway cars, and in means or'apparatus for operating the same; and it consists substantially in such features of construction, arrangement, and combinations of parts as will hereinafter be more particularly described. l

The invention has for its object to provid simple and effective devices or mechanism for checking the speed of railway cars with;

out shock and without noise. Y

The invention has for its further object to provide means` whereby the braking devices may be operated either from the top of the car or from'the ground, or from both positions, thereby rendering it possible to apply the brakes at almost any time or place that it may be required to stop or check the cars.

A still further object of the invention is to simplify the construction and arrangement of parts, as well as to cheapenthe cost of manufacture thereof when compared with many former inventions on this subject.

The above objects are attained by the means illustrated in the accompanying drawings, wherein-vv Y Figure 1 is a view in perspective of the greater part of a car body having my invention embodied in connection therewith. Fig. 2 is a bottom plan viewshowing two sets of wheel trucks, and having my improved brake mechanism extending from front to rear. Fig. 3 is a central longitudinal sectional view to more clearly indicate the construction and general arrangement of parts. v

Before proceeding with the more detailed description of my invention I desire to state that the various parts herein shown can be altered in a great many respects both as to their construction and arrangement, and it will be therefore understood that I do not confine myself to the specific details hereinafter particularly set forth. Such construction and arrangement, however, as I have shown, have been found thoroughly practical in use and I prefer to adhere as closely thereto as possible in practice. In carrying my invention into eect I provide at the forward end of the lower part of cured to the edge of the car at the top. The

said rod B, passes through a foot-rest D, supported at the front of the car by means of brackets F, F, and it is provided at 4with a ratchet wheel-5, with which engagesa spring pawl 6, secured to the foot-board so as to engage the wheel in an obvious manner.

l-As will be observed the-.location of the vertical brakerod B, is somewhat to one side of the center of thev car, and that lthe same is formed orprovided at its lower end with a small drum or pulley 7, to which is attached one end of a chain 8, extending beneath'the bottom of the'car, the opposite end of said chain being connected to a rod 9, which will be hereinafter more particularly referred to and explained.

V'The mechanism thus far described is that which is employed for setting or releasing the brake mechanism while on top of the car, but it frequently-happens' that the brake-man or other operator has to set or release the brake devices while'standing on the ground, and l will 'first describe the arrangement of the brake shoes and connections, and then I will explain my preferred construction and arrangementl of devices by which. the brakes are applied or released through devices at the sides of the car.

Suspended from beneath the bottom of the car at near its forward end by means of rods a, a, is a brake beam b, having at each end thereof a shoe c, designed to engage the periphery of the wheels d of the car whenever the brake mechanism is operated or applied, the said brake beam being so suspended that when operated in the proper manner the shoes will be brought against the wheels forwardly of the latter, thereby gradually retarding or checking their motion with but little shock and noise. Pivoted in like manner bymeans of similar suspending rods ct, a, is an additional brake beam e, having at each end a shoe f, and so arranged with respect to the second pair of wheels g, that when the mechanism is applied the shoesf, will be brought to bear against the wheels g, in a direction reverse to that in which the shoes c, c, are carried by the brake beam b. Also suspended from beneath the bottom of the car by similar suspended rods a, a, and at a point adjacent to the forward edge of the front wheels h, 71, of the second set, is a similar'brake beam t, carrying at its ends the shoes j, j, which beam when operated or drawn upon in the manner hereinafter described operates sub stantially in the same manner as the beam b, hereinbefore referred to. Still farther suspended beneath the carin a similar way is the brake beam 7s, which similarly as the beam e, operates in a reverse manner and is also provided at each end with a brake shoe Z.

Passing beneath the car intermediate of the first set of wheels is a shaft D', which as shown in Fig. f2-is supported in brackets m, the said shaft being prevented from endwise movement in any suitable manner, but yet capable of being turned or rotated in its bearings. The said shaft may be in two parts and provided with-duplicate sets of mechanism about to be described, but for all the purposes of my invention a single set of devices i only will be necessary and I shall therefore.

refer to the same inthe singular.

It will be observed that the shaft D' projects slightly beyond the car at the side, and rigidly connected therewith is a notched or toothed disk E, while loosely supported thereon is a hand lever F' capable of being worked back and forth on said shaft or carried entirely around the same if necessary, the said lever being formed or provided atits end with a grip portion G, adapted to be grasped by the operator. The said hand lever F is formed near its inner end with an eye n, through which passes a spring rod H, which is formed at its inner end with a catch adapted to take into the notches of the disk E, while near its opposite end the said spring rod is pivoted to the hand lever by means of a movable linko. The construction is such that normally the catch of the spring rod engages one of the notches of the disk E, but Whenever the hand lever and the spring rod are grasped together at the outer ends the catch will be withdrawn from the disk by reason of the movable connection between` the rod and lever, so that it will be seen that in order to operate the shaft D', it is simply necessary to work the hand lever back and forth while in the meantime the spring rod is caused to engage and disengage the notched disk E. In this way the shaft D' may be rotated as many times as desired, and from the connections hereinafter described it will be understood how the brake devices are applied and released either by the operation of the said hand lever and spring rod, or by the vertical operating rod B, heretofore referred to.

Pivoted to the brake beam e, is a short arm or lever r, to the end of the longer arm of which is attached one end of a chain s, the opposite end of which latter being attached in any suitable way to the revolving or rotating shaft D'. Similarly connected to the same end of the short arm or lever r is the inner end of the rod 9 the other end of which latter connects with the inner end of the chain 8, hereinbefore referred to as being attached or connected to the lower end of the vertical operating rod B. To the shorter arm of the lever r, is attached or connected oneend of arod 12, the other end of which connects with a chain 13, which passes around a sheave or pulley-14, carried by a bracket 15, secured to the brake beam b, and this chain then connects with a rod 16, which extends rearwardly and connects with a chain 17, passing over a pulley 18, suspended from the bottom of the car, and thence back again over a pulley 19, held or supported by the brake beam t', whence said chain returns again and passes around another pulley 20, also suspended from the bottom of the car, and finally the chain is secured to said beam 'L'. The said pulleys 18 and 20, are held or supported in a block 25,

4and this latter is connected to the rearmost beam 7a, by means of a connecting rod 26.

From the foregoing construction and arrangement of devices it will be seen that should the operator desire to apply the brake while ou the top ofthe car it is simply necessary for him to turu the vertical rod B, through the medium of the hand wheel C, whereupon through the chain and rod connections 8 and 9, the supplemental lever fr will be so operated as to exert a draft or strain upon the succeeding connections, and the several brake beams will -be carried against the wheels of the car in an obvious manner, the pawl and ratchet maintaining said operating rod to Whatever position it is turned, whereas whenever it is desired to release the rod it is simply necessary to disengage the pawl from the ratchet.

It should be remarked at this point that in connection with the shaft D', I employ asimilar pawl and ratchet for engaging and holding said shaft to thepositions to which it may be brought by the manipulations of the hand i lever and spring rodV hercinbefore described.

This latter device is indicated by the letter t, representinga ratchet wheel on the shaft D', which is engaged by a spring pawl u, attached or secured to the side of the car. Whenever the hand-lever is operated to rotate the shaft D', to thereby apply the brake shoes or devices the side pawl u, engages the teeth of the ratchet t, and prevents the shaft from returning backward until the pawl is released by the operator.

It will thus be seen that from my construction and arrangement of devices the brakes can be applied either from 'the top of a car roc ros

IIO

or byaperson standing on the ground alongside. The devices are simple and elective and they can always be relied upon to act `perfectly and reliably.

Without limiting mysell` to the precise dep tails shown and described, I claimchain, the notched disk carried bysaid shaft and the loosely supported hand lever, and the spring lever pivoted to said hand lever 15 and engaging the notches of the disk, substantially as shown and for the purpose described. In testimony whereof I' have signed my name to this specification in the presence of two subscribing witnesses.

` FRANK GUY.

Witnesses:

W. W. AWILSON, O. O. SIMPSON.

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