US352225A - connelly - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

' J. S. GONNELLY.

BRAKE FOR CARS. No. 352,225. Patented Nov. 9, 1886;

f i UNITED. STATES PATENT ()rrIoE.

2 JOHN s. GONNELLY, or BROOKLYN, N. Y.

BRAKE FYOR CARS.

ESPECIEICATION forming part of Letters Patent No, 352,225, dated November 9, 1886.

Application filed August 23,1386. Serial No. 211,629. (No model.)

Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Brakes for Cars; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanyingdrawings, forming part of this specification, in which Figure l is an end view of a car, showing my improved devicesin elevation. Fig. 2 is an enlarged view of parts shown in Fig. 1. Fig. 3 is a view similar to Fig. 2, but illustrating a modification of my invention. Fig.4 is an end view of the parts shown in Fig. 3.

Like figures of reference indicate like parts in each.

In the drawings, 2 represents the car-body, 'which is of any desirable construction.

3 are the motive cylinders of a gas-engine, which drive the car by means of pitmeu connecting the pistons with the crank-shaft. 5, whence power is communicated indirectly to the car-axle through the medium of the flywheel shaft 6, which is geared with the shaft 5, so as to rotate continuously therewith at a much higher rate of speed. The shaft 6 is connected with the driven car-axle by a clutch, as shown in my Patent No. 345,279, dated July 13, 1886, by means of which this shaft may be throwninto and out of gear from the axle, and

l the car thus started without stopping the engine, which operates continuously.

My invention relates to animprove nent upon the car-motor thus constructed; and it consists in an improved form of brake for stopping the motion of the car-wheels after they have been thrown out of gear with the drivingshaft.

Referring nowto Figs. 1 and 2, atthe end of the driving-shaft is a friction disk or pul ley, 23, whose outer face is preferably made concave, as shown in the drawings.

24 is a short shaft j ournaled in suitable housings, 25, and having at its inner end a frictiondisk, 26, inthe center of whose face is a circular bore or journal-hub, 27 ,which fits around a boss, 28, projecting from the center of the disk 23. The hub 27 therefore serves asa journal-bearing for the end of the shaft 5, and the shaft 24 and'its disk .26 are adapted to rotate independently of the shaft 5 and its disk 23. The periphery of the disk 26 is beveled, so as to be the counterpart of the face of the disk 23, and by means of a hand-lever, 32, the shaft 24 is adapted to be moved lengthwise inrits bearings and to bring the disk 26 toward and against the disk 23. Normally, the disks are kept separate by means of a spring, 29, which bears against a collar, 30, on the shaft 24. As before stated, the shaft 5 is continuously r0- tary, even when the car is at rest; but the shaft 24 is stationary until thrown into gear with the shaft 5 in the manner which I will describe. To the shaft 24 is attached a chain, 31, which leads to and operates the car-brake.

.When it is desired to stop the car after the driving-axle has been thrown out of gear, the

driver pulls the hand-lever 32 in the direction of the arrow, thereby bringing the disks 23 and 26 into contact. Together they act as a clutch, and from the continuously-moving shaft 5 power is transmitted to rotate the shaft24, which winds up the chain 31, and, acting on the brake, checks the car. When the brake has been sufficiently tightened, the lever 32 is released, and the spring 29 then immediately acts to separate the disks 23 and 26 and to bring the brake-shaft 24 to rest. The bearingsnrfaces of the disks 23 and 26. against each other may be made quite small, so that when the brake-chain is tautened the disk 23 may held together by the lever 32.

In Figs, 3 and 4 I show a modified form of v with its companion23 by movement of the lever 32, the rotation of the disk 26 will move the lever 33 in the direction of the arrow in Fig. 4, and 'will thereby tighten the brake-rod 35 and-check the motion of the car. It is evident that in this construction of the apparatus the-axis of the lever 33 is the equivalent of the rotary shaft or chain-drum 24, and that the lever itself is the equivalent of the chain.

I do not desire to limit the scope of my invent-ion to the precise form of apparatus which I have shown and described; but

\Vhat I claim as myinventiou, and desire to secure by Letters Patent, is

1. The combination, with a car, its motive engine, and brake, of airotary brake-shaft and mechanism for throwing the same into gear with the driving mechanism of the engine, substantially as and for the purposes described.

2. The combination, with a car, its motive engine, and brake, of a continuously-rotary shaft driven by the engine, a brakeshaft, and mechanism for throwing said continuously-rotary shaft into gear with the brake shaft, substantially as and for the purposes described.

3. The combination, with a car, its motive engine, and brake, or a continuously-rotary shaft, 5, having a friction-disk, 23, and a brakeshaft, 24, having a frictioadisk, 26, which is movable against the friction-disk 23 to rotate the brake-shaft, substantially as and for the purposes described.

4. The combination, with a car, its motive engine, and brake, of a continuously-rotary shaft, 5, having a friction-disk, 23, a brakeshaft, 2-4, having a friction-disk, 2G, a lever for moving the shaft 24 in its hearings to connect the disks 23 and-26, and a spring for disconneeting the disks, substantially as and for the purposes described.

5. The combination, with a car, a motive engine, and brake, of mechanism connecting the engine with the brake and arranged to transmit motive power from the engine to the brake for operating. the latter, snbstantiall y as and for the purposes described.

6. In acar which is driven bya continuouslyrunning engine provided with mechanism for connecting it with and disconnecting it from the driving-axle of the car, the combination of the molive engine, a brake, and mechanism for connecting the engine with the brake to transmit motive power to the latter, substan- JOHN S. CONNELLY.

\Vitnesses:

Cons'nmns J. RooNnY, M. C. MILNOR.

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