US781953A - Brake. - Google Patents

Description

No. 781,953. PATENTED FEB. 7, 1905. S. KENNEDY.

BRAKE.

APPLICATION FILED AUG. 3. 1904.

UNTTnn STATES Patented February 7, 190 5.

PATENT @Fiucn,

BRAKE.

SPECIFICATION forming part of Letters Patent No. 781,953, dated February '7', 1905.

Application filed August 3, 1904. Serial No. 219,329.

To 11]] 11/7/0712 it 712/11 cone/1771.-

Be it known that l, Sunsueazmu KENXEDY, a citizen of the United States of America, residing at River-view, in the county of Washington and State of Pennsylvania, have invented certain new and useful Improvements in Brakes, of which the following is a speciiication, reference being bad therein to the accompanying drawings.

This invention has relation to car-brakes, and relates in particular to hand-operated brakes for street-cars.

The invention has for its object the provision of a novel brake adapted to simultaneously operate upon the treads of the wheels of the car and the tread of the rails upon which said wheels run.

Briefly described, my improved car-brake comprises a shoe which is adjustably mounted in front of the rear wheels of a car, these shoes being so constructed as to engage the tread of the wheel and the tread of the rails, and to the car-body I secure hangers which support said shoes and the mechanism employed to operate the same.

The car-brake and its appurtenant parts are so constructed that they may be readily placed upon the ordinary form of car, and the brake is adapted to be operated by the motorman of the car from the front platform thereof.

My invention further consists in the novel construction, combination, and arrangement of parts to be hereinafter more fully described.

Referring to the drawings accompanying this application, Figure 1 is a fragmentary side elevation of a car having my improvements applied thereto. Fig. :2 is a front view of one of the hangers. Fig. 3 is a similar view of another hanger forming a part of my improved car-brake. Fig. l is a front view of one of the shoes, and Fig. 5 is a bottom plan view thereof.

Throughout the several views of the drawings similar reference-numerals designate corresponding parts.

The reference-numeral 1 indicates the ordinary character of car which is commonly used, this car being mounted upon the wheels 2 2. Mounted upon the forward platform a rod l, which is braced by a guide-yoke 5, and the rod extends downwardly through the platform and has connected to its lower end a cable or rope 6, while a suitable crank-hamlle T is secured to its upper end. Upon the bottom of the car I fix hangers 8 and 9, the hanger 9 being mounted directly in front of the rear axle and in front of each rear wheel. The hanger 8 is provided with a T-shaped pivoted lever 10 and with a rearwardlyextending yoke 11, to the cross-bar IQ of which is connected a spring it, the other end of this spring being secured to the depending portion of the T- shaped lever 10. In the yoke 9, preferably near the bottom of the car, is rotatably mounted a pulley 15. over which passes the cable or rope 6, which has its loose end connected to the depending portion ofthe T-shaped lever 10.

Near the lower end of the hanger .3 is journaled a roller 16, and upon this roller rests and reciproeates a rod 17, the one end of which is connected to the depending portion of the T- shaped lever, as designated at 18, while the other end thereof is pivotally mounted in the lugs 19 19 of the shoe 20. This shoe is segmental in form, and the curved portion 21 of the shoe is described upon an arc coinciding to the wriphery of the tread of the wheels .2. The one side of the shoe is provided with a depending lug 22, which is adapted to engage the side of the tread of the rail and guide the shoe in its movement over said rail. The under face of the shoe corrugated, as designated by the reference numeral 21, whereby it will firmly grip the tread of the rail.

In operation when the rod is rotated by the motorman the cable, rope, or chain 6 is wound upon the lower end of the rod, this operation drawing the depending portion of the T-shaped arm rearwardly, expanding the spring H and forcing the rod 17 rearwardly, this red causing the shoe 21 to impinge between the tread of the rail and the tread of the wheel, and upon a further movement of the car the wheel will ride upon the shoe and the weight of the car will cause the corrugations or roughened portion of the shoe to engage the tread of the rail, causing the car to slacken its speed until the same has stopped. To again place the car in operation, thesaine is moved rearwardly until the wheels have passed ofl of the shoes, and upon the motorman releasing the rod 4: the contraction of the springs will withdraw the shoe from engagement with the rail.

Hy improved brake is particularly adapted to be used in connection with inclined railways and the like, and by providing a brake which will simultaneously engage the tread of the wheels and the tread of the rails a very effective means is provided for stopping the car.

It will be observed that I have only illustrated one of these shoes in connection with the car; but I wish it to be understood that a shoe is employed upon each side of the car directly in front of the rear wheels, and I may make changes in the general arrangement of the hangers without departing from the scope of the invention.

Having fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a device of the character described, the combination with a car, a brake-rod mounted on the platform of the car, a hanger mounted on the car, and having a rearwardly-extending yoke, a T-shaped lever journaled in said hanger, a spring interposed between said lever and yoke, a second hanger mounted on the car, a wedge-shaped shoe adapted to contact with the wheel of the car and the track, a rod passing through said last-named hanger and connected to said lever, a pulley in said last-named hanger, and a flexible connection attached to said lever and to said brake-rod and passing over said pulley.

2. In a device of the character described, the combination with a car, a brake-rod on the car and two hangers carried on the bottom of the car, of alever pivotally suspended in one of said hangers, a spring adapted to force said lever in one direction, a flexible connection attached to said lever and said brakerod to draw the lever in the other direction, a wedge-shaped shoe adapted to contact with the tread of a wheel of the car, and the rail, and a rod connected to said shoe and to said lever and passing through the other of said hangers at an angle, the said shoe being drawn up from the track and away from the wheel by the movement which is imparted to said lever by said spring.

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

.SHESHBAZZAR KENNEDY.

itnesses:

E. E. POTTER, K. H. BUTLER.

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