US339645A - Car brake and starter - Google Patents

Description

(No Model.)

D. HALL.

. GAR BRAKE AND STARTER.

No. 339,645. Patented-Apr. 13, 1886.

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NTTED STATES PATENT rricn.

DANIEL HALL, OF GAULT, MISSOURI.

CAR BRAKE AND STARTER.

SPECIFICATION forming part of Letters Patent No. 339,645, dated April 13, 1886,

Application filed August 3, 1885. Serial No. 173,453. (No model.)

To all wh'om it 17mg concern.-

Be it known that I, DANIEL HALL, acitizen of the United States, residing at Gault, in the county of Grundy and State of Missouri, have invented certain new and useful Improve ments in Car Brakes and Starters, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention is particularly adapted to horse-cars; and it consistsin a novel construction, arrangement, and operation of devices for stopping a car and for storing power to assist in starting, as hereinafter more particularly described.

In the accompanying drawings, Figure l is a top view of a mechanism embodying my improvements. Fig. 2 is a View of one of the axles and devices attached thereto. Fig. 3 is a vertical section taken in the line :0 a: ofFig. 2. Fig. 4. is a verticalsection taken in theline pg; of Fig. 1. Figs. 5, 6, 7, and 8 are detail views.

A represents the axle, and B the wheels, of a horse-railway car. Surrounding the axle, extending part of its length, isa sleeve, 0, provided near its ends with oil cups or holes and suitable bearings, and having its intermediate interior surface grooved or concave, so as to allow free circulation of oil between the sleeve and the axle. Near one end of the sleeve is a drum, D, formed of two disks connected by rods or bars surrounded by a hand or tire. In this drum is a coiled spring, E, the outer end of which is attached to one of the rods or bars of the drum, and the inner end is attached to the sleeve C. Between one end of the drum and the contiguous end of the axle is a disk, G, which is keyed to the car-axle so as to turn with it. In the inner face of this disk is a series of acute depressions or pockets, y, and the corresponding face of the end of the drum is provided with spring-pawls d, for engagement with said acute depressions or pocket-s. On the opposite end of the sleeve, attached to or forming a part of the drum, is a disk, H, having obtuse holes or pockets f in its outer face. Between this disk and the end of the axle is a disk, J, which is feathered to 5 the axle so as to turn with it. The inner face of this disk is provided with obtuse pawls i, for engagement with the obtuse holes or pockets f in the disk H.

Between the disks H and J is an int-ermedial disk, I, provided with holes through which the bolts i and pawlsi pass to engage with the holes or pockets f. These two disks II and J form a clutch, and the two parts are thrown into engagement bya forked lever, K, the front end of which rests in aframe at the front end of the ear, and the other end issuitably secured by hinge or pivot joint. A spring, 7.1, has a tendency to press the lever outward.

Instead of the clutch above described, the ratchet-toothed form of clutch shown in Fi 5 may be used.

- On the inner side of the disk H is a series of notches, h, (see Fi 6,) for engagementwith a pawl, L, pivoted to the sleeve G, and pro 3'..- vided with two springs, Z in, one for engaging it with the notches h and the other for disengaging it. To the pawl L is attached one end of a cord or chain, M, which passes around. pulleys, and has its other end attached to the 7 5 lever K.

X is a frame composed of curved pieces as and :0 extending over the axles, and properly journaled to the same with pieces 2: and a2, connecting them together from front to rear.

From the under side of the rear portion of the frame X extends a hanger, p, to which is pivoted the rear end of a clamping-brake consisting of two rigid strips or bars, P P, which are curved to embrace the upper and lower surfaces of the band or tire s of the drum 1), and which have a spring, (1, between them to keep them disengaged from the tire s when not in use. The front ends of these bars are passed through a compressing device, Q, con- 96 sisting of two rectangular frames pivoted together somewhat after the manner of a sawbuck. The upper end of one of the frames is hinged or pivoted to the under side of the platform or frame X, and the lower end of the other frame has attached to ita cord or chain. R, which passes over a pulley and is attached to the brake-operating crank-handled brakeshaft T.

To the lever K, between the fulcrum and the 00 outer end, is attached one end of a cord or chain, S, which passes around a pulley and is attached to the brake-shaft, T.

The parts being thus constructed and arranged, when the brake-shaft T is turned the rod, link,or chain It andS is wound around two shafts simultaneously. By this means the clamping-brake 1? is compressed, so as to bear on the upper and lower surfaces of the band or tire of the drum D. At the same time the action of the lever K throws the clutch J into engagement and winds up or compresses the spring E, while the slackening of the cord or chain M. allows the spring at to engage the pawl L with the notches h and prevent the spring E from unwinding, and the car is brought to a full stop. \Vhen the brakeshaft is turned in the opposite direction, the spring it throws the lever K outward and disengages the clutch, and the unwinding of the spring E turns the axle and assists in starting the car by turning the drum D forward. The pawls d, engaging the pockets in the disk G, turns forward the axle and starts the car.

Figs. 7 and 8 represent an alternative device for operating the mechanism by the brake-shaft T. On the platform of the car rests a gear-wheel,V,th rough which thebrakeshaft T passes loosely. Keyed or otherwise attached to the shaft T is a double ratchetwheel, 2), and on the gear-wheelVis a doubleacting pawl, o YVhen the pawls are not engaged with the ratchet, the shaft turns without turning the wheel; but when the pawls and ratchet are engaged the wheel turns with the shaft. The pawls are disengaged by pulling them backward and holding them by means of a plate, 12 which is provided with a hole for engagement with apin on the pawl. Adjoining the wheel V and gearing with it is agea'r-wheel, IV, attached to the upper end of a shaft, to which the cord or chain S is connected. lVhen the pawls o and ratchet o are engaged so as to turn the wheel V, the wheel V is also turned, so as to wind up the cord or chain S, and thus the parts areoperated si multaneously. Y

The shaft may be made square in its upper portion for the engagement with a suitable crank when desired.

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

1. In a car brake and starter, the combination, with the axle, the sleeve, and drum carrying the helical spring, of the disk G, keyed to the axle and provided with depressions or pockets 9, for engagement with the springpose specified.

2. The combination, with, the disk J, of the lever K, spring is, cord or chain S, and the brake-shaft, T, as: shown and described, for the purpose specified.

3. The combination, with the sleeve 0 and the disk H, provided with the notches h, of thepawl L, springs Z m, cord or chain M, and lever K, as shown and described, for the pur pose specified.

. 4. The combination, with the compressing clamp or brake P, of the compressing-frame Q, cordor chain It, and brake-shaftT, as shown and described, for the purpose specified.

5. The combination of the brake-shaft T with the cord or chain It and connected devices, and the cord or chain S and connected devices, as shown and described, for the purpose specified.

6. The combination, with the brake-shaftT and connected devices, of the gear-wheels V WV, the double ratchet 12,, the pawl c and the adj usting-plate o, as shown and described, for the purpose described.

In testimony whereof I affix my signature in presence of two witnesses.

, DANIEL HALL.

\Vitnesses:

FRANCIS O. BOWEN, J AS. S. EWBANK.

- pawls d, as shown and described, for the pur-

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