US795035A - Street-car brake. - Google Patents

Description

No. 795,035. P-ATENTED JULY 18, 1905.

J. HASTREITER.

STREET CAR BRAKE.,

APPLICATION FILED MAY'Z. 1905.

QQFMMMQ: amw/ Patented July 18, 1905.

JOSEPH HASTREITER, OF MORGANTOIN, WEST VIRGINIA.

STREET-CAR BRAKE.

SPECIFICATION forming part of Letters Patent No. 795,035, dated July 18, 1905.

Application filed May 26, 1905. Serial No. 262,436.

To rtl/f whom it may concern:

Be it known that I, Josnrn HAsTnniTnr., a subject of the German Emperor, residing at Morgantown, in the county of Monongalia and State of West Virginia, have invented certain new and useful Improvements in Street-Car Brakes, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in street-car brakes, and relates more particularly to novel means for actuating and controlling the street-car brakes.

The primary object of the invention is to provide novel means for locking the streetcar brakes in a position to which they may be placed or adjusted; and to this end the invention aims to dispense with the ordinary type of pivoted dog commonly employed for locking the operatingshaft of street-car brakes, which is actuated by the foot of the motorman operating the car.

The novel means which I employ for retaining` the brakes of a street-car in a set position are also applicable to brakes employed in connection with other vehicles whether operated by electricity, steam, or gravity.

lith the above and other objects in View, which will readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangement of parts, which will be hereinafter more fully described and then specifically pointed out in the claims, and, referring to the drawingsaccompanying this application, like numerals of reference designate corresl'ionding parts throughout the several views, in which- Figure 1 is a front elevation of my improved street-car brake mechanism as applied to the platform of a car. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a side elevation view of the mechanism, the operating-lever thereof being broken away; and Fig. 4 is a transverse sectional view taken on the line a' :l: of Fig. 2 looking in the direction of the arrow indicated in connection with said ligure.

To put my invention into practice I have provided a street-car platform 1 with depending brackets 2, 2, and 3, and in the brackets 2 2 is journaled a shaft 4, the one end of which is provided with a detachable beveled gear-wheel 5, While the other end of the shaft is provided with a head 6, carrying upon its end a peripheral flange 7. The head 6 is provided with a longitudinally-disposed annular recess 8, adapted to receive a stationary stud or pin 9, secured to the depending bracket 3 by nuts 10, which are secured upon a screwthreaded contracted end 11 of the stud or pin 9. The peripheral flange 7 of the head 6 is provided with two diametrically-opposed pawls 12 12, which are pivotally mounted upon the peripheral iange, as indicated at 14 14. The ends of the pawls 12 12 are notched, as indicated at 15, and are adapted to alternately engage in a recess or notch 16, formed in the stud or pin 9. The peripheral iiange 7 is also provided with 'pins 17 17, adapted to limit the outward movement of the pawls 12 12.

The platform 1, adjacent to the depending bracket 2, is provided with a vertically-disposed aperture 18, in which is mounted a flanged lsleeve 19, and through said sleeve passes a vertically-disposed operating-shaft 20. This shaft is retained within said sleeve by a collar 21, secured to the shaft by a setscrew or pin 22. The lower end -of the shaft 2O is provided with a detachable beveled gearwheel 23, adapted to mesh with the beveled gear-wheel 5 of the shaft 4. The upper end of the operating-shaft 20 is journaled in a suitable bracket 24, which is commonly carried and supported from the front board or dashboard of the car. The upper end of the operating-shaft is also provided with a suitable crank-handle 25 to enable the motorman or operator of the car to easily rotate the shaft 2O in order to set the brakes.

Secured to the shaft 4 by suitable means, such as a pin 26, is a chain or cable 27, that extends rearwardlw7 to the brake-operating mechanism of a car.

Then it is desired to set the brakes of a car, the handle 25 is rotated and the shaft 2() is adapted to impart a rotary movement to the shaft 4 and the head 6 through the medium of the beveled wheels 23 and 5, and the chain or cable 27 can be wound upon the shaft 4 to set the brakes. In order to lock the shaft 4 in the position to which it is rotated, l have devised the head 6,'stud or pin 9, and the pawls 12 12, one of said pawls being adapted to engage in the recess or notch 16 of the fixed stud or pin and prevent the shaft 4 from rotating rearwardly until it is desired to release the brakes. The brakes are released by further rotating the shaft until one of the pawls 12 12 has become slightly disengaged from the recess or notch 16 of the stud 9, at which time by quickly releasing the handle 25 the tension upon the cable or chain 27 will rapidly revolve the -shaft 4 andthe head 6, thus preventing the pawls 12 12 from again engaging the recess or notch 16 of the stud or pin 9.

1t will be observed that the construction of my improved brake mechanism entirely dispenses with the motorman or operator of the car locking the brake in a fixed position by a foot movement, the dispensing with the ordinary pivoted pawl located upon the platform also doing away with a cumbersome structure, around which more or less lubricating-oil is generally placed, that disligures the platform of a car and oftentimes inconveniences passengers when boarding or alighting from the platform of a car.

Vhile l have herein described the preferred manner of constructing my improved carbrake, it is obvious that various changes may be made in the details of construction without departing from the general spirit and scope of the invention.

What I claim, and desire to secure by Letters Patent, is

1. In a car-braking mechanism of the character described, the combination with suitable brakes, of depending brackets carried by the platform of a car, a shaft journaled in some of said brackets and adapted to have the brake chain or cable attached thereto, a beveled gear-wheel carried by one end of said shaft, a flanged head carried by the other end of said shaft, pawls pivotally connected to said head, a pincarried by the other of said brackets, and extending into said head, said pin having a recess formed therein in which said pawls are adapted to engage, an operating-shaft journaled in said platform, a crank-handle carried by the outer end of said shaft, a beveled gear-wheel carried by the lower end of said shaft and adapted to mesh with the firstnamed` wheel, substantially as described.

2. In a car-braking mechanism, the combination with brakes, and the platform of a car, of a shaft journaled beneath said platform and adapted to carry one end of a brake chain or cable, a flanged head carried by one end of said shaft, pawls pivotally connected to said head, a pin lixed beneath said platform and adapted to extend into said head, an operating-shaft journaled in said platform, means to impart a rotary motion from said shaft to said first-named shaft, and means to lock said pawls in engagement with said pin, substantially as described.

3. A brake mechanism of the character described consisting of a revoluble shaft to which a brake cable or chain is adapted .to be connected, an operating-shaft adapted to actuate said shaft, pivotally-mounted pawls revolved by said shaft, and means to lock said shaft from rotation, substantially as described.

4. In a brake mechanism of the character described, the combination with a'car, of a revoluble shaft mounted beneath said car and adapted to carry a brake chain or cable, an operating-shaft journaled in said platform,

means to impart a rotary movement from said JOSEPH H ASTREITER.

Witnesses:

C. KLosTERMANN, EDWARD Gr. DONLEY.

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