US238588A - Car brake and starter - Google Patents

Description

(NoModel.)

A. E. HOADLBY. Gar Brakeaind Starter.

Nof. 238,588.

Patented March 8,1881.

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UNTTnn STATES PATENT Ormea.

ALBERT E. HOADLEY, OF CHICAGO, ILLINOIS.

CAR BRAKE AND STARTER.

SPECIFICATION forming part of Letters Patent No. 238,588, dated March 8, 1881.

Application filed June 26, 1880. (No model.) i

To all whom tt may concern:

Be it known that I, ALBERT E. HOADLEY, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented anew and useful Improvemeut in Combined Car Brakes and Starters, of which the following is a specification.

My invention relates to an improvement in the mode of using the momentum of the car as a force to start it by raising the body of the car while stopping, and starting the car by letting the weight of the body fall, so as to turn the axles of the car.

My invention is an improvement on a former invention by me in car brakes and starters secured to me by Letters Patent of the United States No. 229,041, dated June 22, A. D. 1880.

My improvement consists in placing the eccentric friction-wheels, by which the body of the car is raised, outside of the car-wheels and raising the springs of the car with the body, thus preventing any rough or unpleasant sensation to those in the car, and also in a new and improved mode of constructing and applying the friction-wheels.

Figure l is a sectional view of one ofthe car-wheels and eccentric friction-wheels. Fig. 2 is a face view of one ofthe eccentric frictionwheels and car-wheel with springs, yoke, and binding-lever, Fig. 3 is a view of the rods, levers, and spring, by which thefriction-wheels are applied to the car-wheels.

Similar letters refer to similar parts throughout the several views.

The mode of operation is as follows: The rods S S, Fig. 3, are attached to the brakerods (one of which is at each end of the carin ordinary use on street-railways) by a short chain,onlyone being in use at a time. When the brakes lare applied by the driver, the rod S draws upon the lever i, which, in turn, draws the rods Z l and compresses the spring J, drawing the rods K K, attached to equalizing-levers 7L h, which are attached by links t t to the levers F F, respectively, the other end of each lever F being attached to the rod N, connecting the levers on opposite sides of the car. Each lever F passes around the axle of the car, outside of the car-wheel and eccentric friction-Wheel C, and is attached by pins to a hub or collar, which moves freely on the axle A. (See Figs. l and 2.) When the brake is applied the lever F presses the eccentric frictionwheel C against the car-wheel B.

The eccentric friction-wl1eel-C is constructed with the longestradius about four incheslonger than the shortest, but with the inner surface, I l, prolonged and circular, (see Fig. 1,) and constructed so that it is only applied to the car-wheel upon the beveled surface x cc, nea-r the periphery of the latter. (See Fig. 1.)

In that part of the eccentric wheel which is above the axle of the car while in motion, and the eccentric wheel not applied to the car- Wheel, is a chamber, l), Fig. l, for holding oil, which passes through an opening at the lower extremity to the axle.

The four eccentric wheels are constructed and operate in the same manner and at the same time.

Extending over the eccentric wheel C is a yoke, D, upon the extremities of which rest the car-springs g g, and through which the springboltsff pass. (See Fig. 2.) In this yoke is a loose pulley, E, (see Figs. l and 2,) which rests upon the eccentric wheel C. Upon the outer face of the latter is a iiange, c, (shown in Fig. 2 by the dotted line a.) This prevents the pulley rolling o' the eccentric wheel, and also, when the eccentric friction-wheel is applied to the car-wheel, tilts the yoke D, the ends of which, being bound .down by the carsprings g g, act to bring the eccentric wheel back to place again when the pressure is relieved.

When the eccentricfriction-wheel Cis pressed against the car-wheel by the action of the driver turning the brake, as heretofore shown, the eccentric wheel, being loose on the axle, commences to revolve, and as its longest radius approaches the pulley E the car gradually rises. )Vhenthe lug p on the periphery of the eccentric wheel strikes the pulley E, the eccentric friction-wheel must either slip on the car-wheel or the car-wheel slip on the track until the car stops, depending upon the amount of' force exerted by the driver. As the eccentric friction-wheel C revolves, the lug j) strikes the ends of the rods c or c', passing through the yoke D, and raises them, the rods c and c being constructed and operating the same, and for the same purpose, as the rods w and w in Fig. l of specification to Letters Patent heretofore referred to--No. 229,041. When IOO the bra-ke is released the levers F F are thrown back by the spring J and by the springs ot the car, bringing the yoke D back to its vertical position, as heretofore shown, and the weight of the car is thrown upon ratchetwheels, and the car started in the manner described in the specification to said Letters Patent No. 229,041.

Extending over the face of the eccentric wheel is an iron plate, 0, (shown by the broken and dofted line o in Fig. 2,) which is irmly attached to the beam H ofthe car, Figs. l and 2, and is bent under the springs g and g at the corners of the plate, and receives the spring bolts or rods f and f, respectively.

At the extremity of the axle ot' the car is a cap, c, Figs. l and 2, in which the end ot' the axle revolves. Said cap rises and falls in the slot cl in theironplateo,asshown bytnedotted linein Fig. 2. This holds the car vertically over the axles. From the circumference of the axle to its extremity is an opening, r, Fig. 1, for the passage of oil to lubricate the extremi ity of the axle in the plate c, and also lubricate the slot d for the plate c.

What I claim isl. The combination ot' the lever i, the rod l, the spring J, the rod K, the lever h, and the levers F, for the purpose specified, all arranged substantially as set forth.

2. The eccen tric friction-Wheel C, containing oil-cham ber b, with its inner surface prolonged and circular, Working against the beveled surface ot' the car-Wheel, for the purpose specied, substantially as set forth.

3. The yoke D, containing pulley E, for the purpose specified, substantially as set forth.

4. The plate 0, provided with the slot d, in combination with the plate c, Working in said slot and upon the end of axle A, substantially as described, for the purpose specified.

ALBERT E. HOADLEY.

Witnesses:

HENRY M. MATTHEWS, SAMUEL KERR.

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