US437652A - William h - Google Patents

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US437652A
US437652A US437652DA US437652A US 437652 A US437652 A US 437652A US 437652D A US437652D A US 437652DA US 437652 A US437652 A US 437652A
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bar
william
lever
car
brake
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/126—Brakes for railway vehicles coming into operation in case of exceeding a predetermined speed

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  • This invention relates to brakes for stopping street-railway cars; and it consists in the novel constructions and combinations, substantially as hereinafter described, and pointed out in the claims.
  • Figure 1 is a top or plan View of a car-truck having my invention attached.
  • Fig. 2 is a longitudinal section of the same.
  • Fig. 3 is an enlarged detail View of the mechanism for operating the brakes.
  • a A are the axles, and NV W are the carwheels.
  • B is a bar supported in aloop-hanger b, and hasa V-shaped portion engaging in the groove of the said wheel 0.
  • the opposite end of said bar B is provided with a pulley-wheel 0 over which a chain or cord D passes, connected at one end with the brake-lever L, while the other end is connected to a rod M, extending to the rear of the car to connect with the brake mechanism of a trail-car, if desired.
  • a cam-pressure mechanism to be operated by a hand-lever R on the platform. It consists of a disk or plate N, attached to a sill or bar of the truck-frame. Through it is made a square upper face, which en gage With'the ca m-inclines n on the plate N,so that the turningof said ring on the plate 0 will produce an extension of the plate and roller downward for producing a downward pressure of said roller upon the bar B for the purpose of creating friction between said bar and the wheel. whereby the bar shall be drawn uponfor applying the brake mechanism to which it is attached.
  • a lever 9 connected by rod H Withthe handlever R.
  • the brake mechanism is of the construction commonly in use.
  • the combination In power-brake mechanism for motor-cars, the combination, with the axle A, of grooved Wheel O, bar B, provided with pulley 0 connected by chain or cord D with. brake-lever L, and the cam-pressure mechanism consisting of the plate N, having square hole andinclines n n, plate 0, having stud 0 and roller t, and the cam-ring G, having cam-inclines, and lever g, connected to and operated by hand-lever R, substantially as specified.

Description

W. H. K-OEHLER.
CAR BRAKE.
(No Model.)
' No. 437,652. Patented Sept. 30, 1890.
UNITED STATES PATENT OFFICE.
WILLIAM H. KOEHLER, OF CLEVELAND, OHIO, ASSIGNOR OF TWO THIRDS TO VALENTINE MAURER AND JOHN W. SOHUSTER, BOTH OF SAME PLACE.
CAR-BRAKE.
SPECIFICATION forming part of Letters Patent No. 437,652, dated September 30, 1890.
Application filed July 16, 1890. Serial No. 358,986. (No model.)
To all whom it may concern:
Be it known that I, WILLIAM H. KOEHLER, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Brakes for Street- Bailway Motor-Cars, of which the following is a specification.
This invention relates to brakes for stopping street-railway cars; and it consists in the novel constructions and combinations, substantially as hereinafter described, and pointed out in the claims.
In the accompanying drawings, Figure 1 is a top or plan View of a car-truck having my invention attached. Fig. 2 is a longitudinal section of the same. Fig. 3 is an enlarged detail View of the mechanism for operating the brakes.
A A are the axles, and NV W are the carwheels. On one of the axles I fix a grooved wheel O, Which is employed for applying power to the brakes derived from the momentum of the car.
B isa bar supported in aloop-hanger b, and hasa V-shaped portion engaging in the groove of the said wheel 0. The opposite end of said bar B is provided with a pulley-wheel 0 over which a chain or cord D passes, connected at one end with the brake-lever L, while the other end is connected to a rod M, extending to the rear of the car to connect with the brake mechanism of a trail-car, if desired.
' Above the aforesaid wheel 0 is provided a cam-pressure mechanism to be operated by a hand-lever R on the platform. It consists of a disk or plate N, attached to a sill or bar of the truck-frame. Through it is made a square upper face, which en gage With'the ca m-inclines n on the plate N,so that the turningof said ring on the plate 0 will produce an extension of the plate and roller downward for producing a downward pressure of said roller upon the bar B for the purpose of creating friction between said bar and the wheel. whereby the bar shall be drawn uponfor applying the brake mechanism to which it is attached. As a means of turning said cam-ring, it is provided with a lever 9, connected by rod H Withthe handlever R.
The brake mechanism is of the construction commonly in use.
Having described my invention, I claim as follows:
In power-brake mechanism for motor-cars, the combination, with the axle A, of grooved Wheel O, bar B, provided with pulley 0 connected by chain or cord D with. brake-lever L, and the cam-pressure mechanism consisting of the plate N, having square hole andinclines n n, plate 0, having stud 0 and roller t, and the cam-ring G, having cam-inclines, and lever g, connected to and operated by hand-lever R, substantially as specified.
WILLIAM H. KOEHLER.
Witnesses:
GEO. W. TIBBITTS, M. G. NORTON.
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