US1153151A - Car-brake. - Google Patents

Description

P. BOCH.

CAR BRAKE.

APPLICATION r1150 JUNE 20. 1914.

PatentedSept. 7,1915.

3 SHEETS-SHEET] COLUMBIA PLANOGRAPH COQWASHINOTDN. D1 0 P. BOCH.

CAR BRAKE.

APPLICATION FILED JUNE 20. 1914.

Patented Sept. 7, 1915.

3 SHEETS-SHEET 3.

cpLuMBIA PLANOGRAPH c0.,wASHINGTuN. D. C-

, TED s'r'rs PATNT OFFICE.

IPHILIPI? IBQCI-I, on NEW YORK, 1v. Y., ASSIGNOR or ONE-HALF T PAUL lemon, or

' NEW YORK, N. Y.

CAZREBRAKE.

Specification of Letters Patent.

PatentedSept. '7 1915,

Application filed June 20, 1914. Serial No. 846,304.

ToaZZ whom it may concern:

Be'it known that I, PHILIP]? BooH, a citizen of the United States of America, residing in New York, in the borough of Manhatta n, county and State of New York, have invented certain new and useful Improvements in Car-Brakes, of which the following IS aspeciiication.

This invention relates to a car brake embodying both wheel and rail brakes and mechanism for the simultaneous .operation thereof. 7

In the accompanying drawings, Figure 1 is a side elevation of a car truck having applied thereto a brake embodying the invention, Fig. 2 is a top view of the same, Fig. 3 is a vertical longitudinal section on line 3-3, Fig. 2, Fig. 4 is a similar section showing the parts in a different position, Fig. 5 is a vertical section on line 55, Fig. 1, Fig. 6 is a top view on a larger scale showing the means of mounting and guiding the railshoes, and Fig. 7 is a vertical section on line 77 of Fig. 6.

Similar reference numerals indicate the same parts in the various figures.

A main supporting cross-bar 10 is carried at its ends on the side'frames 11, 12, of the car truck. On suitable gudgeons 13, projecting inwardly from the side frames, are pivoted links 14 which support independently the wheel brake- shoes 15, 16, 17 18, in proper position for being swung, each pair in opposite directions, into and out of contact with the wheels 19, 20, 21, 22, respectively. Guided in the cross bar 10 are two vertically movable rods 23, 24, which have at their lower ends supporting cross-pieces 25, 26. 011 said cross-pieces or feet 25, 26, rest two connecting links 27 28, which extend transversely of the truck and are pivoted at their ends to pillowblocks29, and 30. To the pillow- blocks 29 and 30 are piv oted the rail brake- shoes 31, 32. Said rail brake-shoes are provided with laterally extending guide-pins 33, 84, which are guided vertically betweenguide lugs on the side frames of the car truck. Said pins, as shown, haveconsiderable play between said lugs, and this, combined with the play which exists between the inner faces of the lugs and the railshoes,- permits lateral movement of the brake-shoes as well as slight angular displacement of the same out of true alinement between the wheels, which movement is advantageous for riding obstructions upon, or inequalities in the rail surface,

at each end wedge-shaped member, said.

members 42 and 43 carrying each at its lower portion two spaced antifriction rollersv 42' and 43 adapted to bear against the converging rear faces 44 of the Wh elshoes. The two brake-beams arein proximity transversely of the car truck. Between the same a located two wedges 4.5, 46, one at each s1 e.

The wheel brake beam 41 and the rail brake beam engage attheir opposite ends the vertical guide ways 35 at opposite sides of the truck, and are movable vertically in said guide ways, being disposed onev above the other. The rail brakebea'm 41 is. pro= vided on its lower side with antifriction roll= ers 47 disposed near opposite sides of the truck inside the wheel-shoe actuating members 42 and 43 and the rail brake beam 40 is provided with antifriction rollers 47 disposed in vertical alinement with the antifriction rollers of the wheel brake beam 41, and the actuating wedges-45 and 46 slide between said rollers 47 and 47-.

7 When it is desired to apply the brak s. the brake-rod 52 is moved in the direction of the arrow in Fig. 1, Thereby the wedges 45, 46, are advanced between the brake-v beams and the wheel brake-beam is elevated, while the rail brake-beam isloweredr intermediate position in which the brakes arenot fully applied, as shown in Fig. 3. In Fig. 4 the wedges are still. further advanced and the brakes are thereby fully applied, the wheel brake beam 41 beingso far lifted as to bring its wedge-members 42, 48, which preferably carry contact rollers42 and 43", into forcible con-tact with the converging rear faces of the wheel shoes, thereby forc+ ing-themapart and against the wheels while the lower ,nail brake-beam 40 is sofarde re racting springs, 11 the ro s 23.;-

29 and 30 and thereby the rail-shoes until the latter are in strong frictional .contact with the rail. Thus, both brakes are simultaneously applied. For releasing the brakes, the brake-rod 52 is moved in the opposite direction, thereby the wedges are forced back, that is to say, outwardly from between the brake-beams, whereby the beams are permitted to come together, which they do reliably under the tension of the retractingsprings 36, 37, and all the parts resume their former position shown in Fig. 1.

In order that the springs 36, 37, shall not,by their lifting action when the brake is off, continue to lift the wheel brake-beam to such an extent as to apply the wheel brake-shoes, which would be the case were the upward movement of the brake-beams unlimited, arresting springs 54, 55, are employed which are located between the main cross-bar 10 and the brake-beam 41. By their compression they serve to limit the upward movement of the parts at such point that the wheel shoes have no effective pressure on the wheels when the brake is off.

The brake described provides effective, reliable, and durable means for quickly arresting the movement of cars.

One embodiment of the invention has been described, but. it is obvious that changes may be made therein without departing from the spirit of the invention.

I claim:

1. A car-brake comprising a main supporting cross-bar secured at its ends to the car truck, wheel brake-shoes between the truck wheels, said wheel brake-shoes having opposed converging rear faces, rail brakeshoes one at each side of the truck between the wheel brake-shoes, a wheel brake-beam having at each end a wedge-shaped member adapted when the beam is moved to engage the converging faces of the wheel brakeshoes and force them against the wheels, a

rail brake-beam movable in opposite direction to the wheel brake-beam for applying the rail brake-shoes, and means for moving said brake-beams simultaneously in opposite directions.

2. A car-brake comprising a main supporting cross-bar secured at its ends to the car truck, wheel brake shoes between the truck wheels, said wheel brake-shoes having opposed converging rear faces, rail brakeshoes one at each side of thetruck between the wheel brake-shoes, a wheel brake-beam having at each end a wedge-shaped member adapted when the beam is moved to engage the converging faces of the wheel brakeshoes and force them against the wheels, a rail brake-beam movable in opposite direction to the wheel brake-beam for applying the rail brake-shoes, means for moving said brake-beams simultaneously iii-opposite directions, and means for returning the brake beams toward each other for releasing the shoes. r V

3. The combination of a truck frame provided with vertical guideways on its opposite sides, pillow blocks disposed at opposite sides of said truck and provided with guide studs loosely engaging said guideways, transverse links pivoted to opposite ends of said pillow blocks, rail brakes pivoted to said pillow blocks, a brake beam engaging said pillow blocks, and means for lifting and lowering said brake beam to set and release said brakes.

l. The combination of a truck frame provided with vertical guideways on its opposite sides, pillow blocks disposed at opposite sides of said truck frame and provided with guide studs loosely engaging said guideways, transverse links pivoted to the opposite ends of said pillow blocks, rail brakes pivoted to said pillow blocks, yielding supports for said links, a vertically sliding brake beam engaging said guideways and means for depressing said sliding brake beam for settingthe rail brakes.

The combination of a truck frame provided with vertical guideways on its opposite sides, pillow blocks disposed at opposite sides of' said truck and provided with guide studs loosely engaging said guideways, transverse links pivoted to opposite ends of said pillow blocks, rail brakes pivoted to said pillow blocks, yielding supports for said links, a vertically sliding brake beam engaging said guideways and means for depressing said sliding brake beam for setting the rail brakes.

6. A car brake comprising a main supporting cross-bar secured at its ends to the car-truck, wheel-brake-shoes between the truck-wheels, said wheel brake shoes having opposed converging rear faces, rail-brakeshoes, one at each side of the truck between the wheel-brake-shoes, a wheel-brake-beam having at each end a wedge-shaped member carrying spaced antifriction rollers adapted when the beam is raised to engage the converging faces of the wheel-brake shoes and force them against the wheels, a rail-brakebeam, upwardly spring-actuated rods guided in the cross-bar and extendingthrough the brake-beams and having below the railbrake-beam spaced supporting members, links supported on said members, pillowblocks one at each side pivoted to the railbrake-shoe, said'links being pivoted to said pillow-blocks, an antifriction roller carried by each pillow block between the same and the rail-brake beam, operating wedges between the brake beams, brake-levers connected with said wedges, and an operating rod connected with said levers.

7 The combination of a truck frame having vertical guideways at its opposite sides, transverse brake beams disposed one above the other and movable upward and down- 10 and a wedge mechanism movable between said brake beams for simultaneously setting them.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscriblng witnesses.

PHILIPP BOOH.

Witnesses:

F. Hoes, Jos. BISBANO.

Copies of this patent may be obtained for five cents each,' by addressing the Commissioner of Patents, Washington, D. G.

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