US356589A - Car-brake - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1; A. L. KIRKLAND.

GAR BRAKE. v Patented Jan. 25, 1887.

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CAR BRAKE. No. 356,589. Patented Ja11.25, 1887.

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GAR BRAKE.

No. 356,589. Patented Jan. 25,1887.

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AUSTIN L. KIRKLAND, OF BOSTON, PENNSYLVAXIA.

CAR-BRAKE.

SPECIFICATION forming part. of Letters Patent No. 856,589, dated January 1887.

Application filed November 23, 1886. Serial No. 219.713. (X0 model.)

To (tZZ whom it may concern:

Be it known that I, AUsriN L. KIRKLAND, a citizen of the United States, residing at Boston, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Oar-Brakes, of which the following is a specification, reference being had therein to the accompanying drawings.

The object of this improvement is a brakeoperating mechanism for railroad cars that can besimultaneously applied to all the cars in the train by the engineer or his assistant on the locomotive, or by the conductor or his assistant in the caboose/at the rear end of thetrain, or simultaneously applied from both ends of the train by an operator in the caboose or on the locomotive or from either the caboose or locomotive, to connecting cars in case the train should be parted by the breaking of a link or other causes. These results are attainable by the means illustrated in the drawings herewith filed as part hereof, in which the same letters of reference denote the same parts in the dil ferent views.

Figure 1 is a sectional side elevation representing a locomotive and tender provided with my improved brake operating mechanism. Fig. 2 is a similar representation of a caboose and freightcar provided with the same. Fig. 3 is a detail plan view of parts enlarged. Fig. 4 is a sectional detail representation of parts enlarged. Fig. 5 is an enlarged side elevation and plan view of one of the parts detached. Fig. 6 is a similar representation of adifferent part. Figs. 7 and S are details.

A represents the cab part of the locomotive. B is the drive-wheel thereof.

0 is the tender connected to the locomotive by the ordinary link, a.

D D are the truclrframc and wheels.

E E are the shoe supporting beams, suspended from the truck-frame by rods f f, and provided with shoes of ordinary construction, as shown at d d.

F G H are hangers suitably secured to the floor of the tender in the order shown.

G and F are sheaves supported by hangers G and F, and H H is a bifurcated bell-crank lever supported by and having its fulcrum at the lower part of the hanger H.

H is a sheave having journal-bearings in ad of which is provided with a pulley, N.

j ustable boxes 11, arranged to slide in slotted rectangular extensions H of the lever-arms H".

H is a spiral spring set in each of the leverextensions H, in order to bear the boxes h to the lower part thereof, for a purpose herein after set forth.

L is a lever having fulcrum projections L resting in the lower parts of hangers L, fixed to the cab-floor, and provided with curved arms L, arranged to engage with linlis P P, which are secured to the firebox of the locomotive by means of a bolt, P and suitable eyes, as shown.

1? is a pulley fixed on or made integral with a shaft, P, having journal-bearings in the eyes of the links P".

N is a pulley fixed on or made integral with the axle of the drivewheel of the locomotive.

M is a chain belt arranged to engage pulley .N and drive the pulley P and shaft P, fora purpose hereinafter fully explained.

S Sis a chain fixed to the shaft 1 and connected thence over the sheave G, supported by the hanger G under the sheave H, supported by the bell-crank lever, and over the sheave F, supported by the hanger F, and through an eye, Q, fixed to the tender-floor, as shown, be yond which it is provided with ahnob or tappet, S, and a book, as shown at S, for connecting the parts with other cars provided with mechanism similar to that shown in connection with the tender, as more fully illustrated in Fig. 2.

R- R is a lreadle connected with the leverL through the cab-floor. R is a spiral spring arranged to engage with the treadle-bearing R and holdthe lever in the position shown when the brakes are not being applied.

Referring to Fig. 2, T is the caboose,the axle P is a bracket fixed to the caboose-floor, and arranged to support a pulley and shaft, P P, by means of links P P, affixed thereto by a rod, P", as shown in Fig. 3.

V is a car provided with brake-operating mechanism in all respects similar to that shown in Fig. l.

lVhen necessary to apply the brakes, the treadle B R is pressed downward by the en gineer or fireman in the cab or the locomotive, when the lever L will raise the pulley P and cause the chain belt M to engage with the pulley N on the axle of the locomotive drive wheel, when thepulley P willrevolve and wind the chain S onthe shaft P, which will cause thebellcrank lever H H to change its position, as indicated bythe dotted profile lines, and such movement of the lever H H will ap ply the shoes to the car-wheels through the rods K K and lever K. \Vhen the brakes are rapidly applied by winding the chain on the shaft P, the chain belt M will slip on the pulley P and the chain S will cease to wind on the shaft P. When the pressure is taken from the lever L, the gravity of the bell-crank lever H H and the tension of the springs S connect ing the shoe-supporting beams E with the transverse beam g of the truck-frame, will cause the parts to take the positions shown. The same operation can be given to the brakes by a similar pressure upon the treadle in the caboose; and it is obvious that the brakes can be applied by either the engineer or his assistant, or by the conductor in the caboose or his assistant, or by both simultaneously. The object of the balls or tappets on the chains S is to form a stop for the chains in case the train should be severed by the breaking of a link or otherwise, in which case both the engineer and-conductor could apply-the brakes to their respective sections of the train in the manner described.

Having explained the features and operation of my improvement, what I claim as new, and desire to secure by Letters Patent, is

1. In a car-brake, in combination with the bell-crank lever H H", having pulley H" at one end, and connected at the other withsthe brake -shoes, substantially in the manner shown, pulleys G F, suspended in brackets F G H from thebottom of the locomotive-tender or caboose, and chain S, passing around said pulleys G, F, and H*, the shaftP, to whlch the brake-chain S is fixed, pulley 1?, chain M,

brackets P L, and spring-treadle R R R sub stantially as and for the purposes set forth and shown.

2. In a ear-brake, thecombination, with the bell-crank lever H H, pulleys G, F, and H,

and chain S, with mechanism, substantially such as described, for operating said chain, of

, for the purposes specified.

4. In a oar-brake, the chain S, fixed at one end upon a winding-shaft, P, and around pulley H, whereby to operate the brake shoes, formed with hook S and stop S substantially as described and shown, for the purposes speci fled.

In testimony whereofI affix my signature in presence of two witnesses.

AUSTIN L. KIRKLAND.

Witnesses: I

J OHN W. STEWART, R. G. RANKIN.

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