US316562A - Car-brake - Google Patents

Description

2 Sheets$heet 1..

(No Model.)

J. S. NAERY.

GAR BRAKE.

Patented Apr. 28, 1885.

d I m Z I 1, .m a f a G .F W

(No Model.) 2 Sheets-Sheet 2.

J. S. NAERY.

UAR BRAKE. No. 316,562. Patented Apr; 28, 1885.,

Ewmgqm til. 1% Ex 7 Q 1 v z i, 2' I p f II! I z 1' if 4 1 1 um mm U W v v ZZf/ZZZ $5 @flifg NITED STATES arninr men.

JOHN s. NAERY, on NEW ALBANY, INDIANA- CAR-BRAKE.

SPECIFICATION forming part of Letters Patent No. 316,562, dated April 28, 1885.- Application filed September 24, 1884. (No model.)

To all whom it may concern}- Be it known that I, JOHN S. NAERY, a citizen of the United States, and a resident of New Albany, in the county of Floyd and State of Indiana, have invented certain new and useful Improvements in Oar-Brakes, of which the following is a specification.

embodying my invention.

My invention relates to certain new and useful improvements in car-brakes, the object being to produce a cheap, simple, and effect ive brake which may be applied to any of the well-known forms of trucks now employed, and one which will exert great force against the treads of the wheels with the use of a com paratively small amount of power.

To these ends the invention consists in the novel construction and arrangement of the parts of the breaking mechanism, as fully set fort-h hereinafter, and illustrated in the accompanying drawings, in which- Figure 1 is a perspective View of acar-truck Fig. 2 is a side elevation thereof. Fig. 3 is a plan, and Fig. 4 is a modified fornnoftruck-frame adapted for use with my improved brake. Adesignates acar-truck consisting of crossbeams B 13, secured to side frames or trusses, O O, which are supported at their ends by wheels in the usual manner. The side frames, 00, maybe of any suitable construction, those shown consisting of oppositely arranged arched bars K K, forming a truss-like structure resting at its respective ends, where the arched bars meet,on the journal-boxes F F.

Below each side frame, 0, and constituting part thereof, is arranged a longitudinal tie-bar or brace, G, secured at or near its ends to the under side of the journal-boxes F F.

The arched bars K K are braced and secured together near their center by interposed standards at a, through which and the arched bars and braces G pass bolts bb, firmly holding the parts in their proper relative positions.

Instead of fixedly securing the upper crossbeam, B, to the side frames, as is the lower beam, it is preferably movably supported be tween the standards a a on springs M M, interposed between the beams, and thus affording a yielding bearing for the body of the car.

To afiord a very strong and rigid support for the attachment of the brake-levers T, I preferably extend each upper arched bar, K,

and brace G beyond its point of connection to the journal boxes F F a sufficient distance to form bearings or pivot-points in advance of 5 the supporting-wheels. The ends of each up per arched bar and brace G are bent toward each other, as clearly shown in Fig. 2, and

.where they meet are bolted or otherwise secured together with an interposed block, a,

which latter holds the ends apart sufficiently to receive between them the brake-levers.

The outer end of each brake-lever T'is pivoted at cc to one of the extensions of the side frames, outside of the supporting-wheels, while the inner ends of each pair of said levers lap a sh0rt'distance,and are movably connected together by an encircling band or dog, S, which latter is held in its proper position by a bolt, 15, passing through said band or dog and through slotsp in the inner ends of said levers. To the inwardly-proj ecting ends of the dogs S are pivoted operating-levers N, connected by suitable tie-rods, L, to the crossbeam 13 and source of power in the usual manner.

To the levers T, directly opposite the periphery of each supporting-wheel,is pivotally attached a brake-shoe, H, provided. with a slot in its outer side sufficiently deep to receive the entire width of said beam, so that the edges of the slot and beam will be flush, leaving no objectionable projections. The terminations of the slots in the brake-shoes are slightly convex, so as to permit of a limited lateral movement of the shoes, whereby a flat brakingsurface is at all times presented, no matter what the inclination of the levers T may be with respect to the center of the wheels.

Supported at one end in brackets f, bolted to and projecting inwardly from the side frames, 0, in advance of the journal-boxes, are inverted U shaped springs W, adapted to bear with their opposite end against the levers T, to force the brakes away from the wheels when they are released.

Instead of lengthening each brace G and upper arched-bar, K, to form the end extensions of the truck-frame in one with the main portion thereof, as shown in Fig. 2, said extensions may be made separately and bolted to the frame at its points of attachment to the axle-boxes F, as shown in the modification, Fig. 4. In this instance the extension is composed of two separate bars, I I, shaped in like manner as the lengthened ends of the brace G and upper arched bar, K, and are secured together at their outer extremities by suitable bolts or rivets, with an intervening block, a, to give them the necessary spread for the reception of the brakedevers. The inner ends'of the bars I I are secured to the main structure by bolts *5 i, passing through bosses e e in the sides of the journal-boxes and through the ends of the side frames, thus firmly holding the parts together.

By this latter construction it will be observed that my improvements can-be easily removed, should occasion require, and may also be as readily applied to any of the well-known forms of car-trucks now in use without the necessity of any material alterations of their frames.

As the pivot-points of the brake-levers are outside ofthe wheels, thus permitting the attachment of the shoes only a very short distance from the fulcrum of' the levers, it will be seen that by'the use of a comparatively small amount of power the brakes may be applied with great force, owing to the amount of leverage.

My brake while embodying the desirable qualities of cheapness, owing to, its exceeding l simplicity of construction, is at the s'ameti me very effective in its operation, durable, and may beeasilyapplied to cars now in general use. Although I have shown and described apart'icular form of truck to which my invention H a f of brake-levers pivoted thereto outside of the supporting-wheels, means for. operating the is applicable, I wish it to be understood that I dov not limit myself by such construction, as it will be evident that the invention may be. applied to any ofthe well-known forms of trucks now in use with equal facility.

I claim- 1. The combination, with a car-truck, of brake-levers pivoted to the frame thereof out side of the supporting-wheels,and directly and movably connected to each other at their inner ends, means for operating said levers, and

brakeshoes connected thereto insideof thepivot-points of the levers, substantially as set forth.

2'. The combination, with a car-truck having truss-like side frames extending beyond the supporting-wheels,of brake-levers pivoted to said extensions outside of said wheels, and connected at their inner extremities by an encircling-dog having its inwardly-projecting arm arranged at an angle to said encircling portion, and means for operating said levers, substantially as set forth.

3. The combination, with a car-truck having truss-like side frames, said truss-frames being extended beyond the supporting-wheels, of brake-levers pivoted to said extended ends outside of said wheelsa'nd movably connected at their inner ends, means for operating said levers, brake-shoes pivotally connected to the levers between their extremities, and springs supported by the extended frames and adapted to bear against the brake-levers, substantially as set forth.

4. The combination, with a truck-frame'having detachably-connectedextremities project:

ing beyond the supporting-wheels, of brakelevers pivotedto the extremities of said extensions outside of said wheels, and connected at their inner ends by an encircling-dog pro vided with an angularly-arranged arm, means for operating said levers, slotted brake-shoes having convex bearings and pivoted to said ,l'evers inside of their pivot-points, and brackets secured to the extended frames and carry- ,1 ing U-shaped springs adapted to bear against the brake-levers, substantially as set forth.

5. The combination, with the truck-frame,

same, and slotted brake-shoes pivoted to said levers, the slots being of a depth equal to the width of the levers and terminating; in convex bearings, substantially as and for the purpose described.

In testimony whereof I have signed my name to this specification in the presence of two sub-- scribing witnesses. V

J N O. S. NAERY.

Witnesses:

A. L MMoN, S12, F. E. DISHMAN.

Images