US545954A - Car-brake - Google Patents

Description

{No Model.)

. A. W. GABRIG.

CAR BRAKE.

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y f? i lr 10 #Hmmm 2 Sheets-Sheet 1.

Patented Sept. 10,1895.`

(No vro'del.)

A. W. GABRIO. GAR BRAKE.

2 sheets-sheet '2.

Patented Sept. 10, 1895;

trice.

ALFRED W. GABRIO, OF HAZLETON, PENNSYLVANIA.

CAR-BRAKE.

SPECIFICATION forming `part of Letters Patent No. 545,954, dated September 10, 1895.

Applicator nei March 14, 1895.

To all whom t may concern.-

Beit known that I, ALFRED W. GABRIO, a citizen of the United States, residing at Hazleton, in the county of Luzerne and State of Pennsylvania, have invented a new and useful Car-Brake, of which the following is a specification.

This invention relates to an improvement in car-brakes; and the object of the present invention is to simplify and improve theconstruction of car-brakes and to provide one which shall be adapted to operate upon the Wheels at the upper portions thereof and to bear down directly upon the same, which shall consist of few parts, be reliable and durable in practice, capable of being easily and quickly operated and adjusted, and which shall be thoroughly effective in use, whether employed on steam, electric or other cars.

The present invention consists in the combination, with the wheel-pieces or side sills, of a steam, electric, or other motor truck, of a series of horizontallyarranged brake-beams pivoted thereto at either end of the truck and extending inwardly to and'connected at their inner ends to a pair of operating rock-shafts, in the particular manner of constructing and arranging said rock-shafts for simultaneously accomplishing the adjustment of all the brake-shoes, in themeans for adjusting the brake-beams with relation to the wheels, and in certain featuresand details of construction and arrangement of parts, as hereinafter fully described, illustrated in the drawings, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of a car-truck or sufficient thereof to illustrate the application of my improved brake mechanism shown attached. Fig. 2 is a side elevation of the same, showing the manner of connecting the brake-beams with the operating rock-shafts.` Fig. 3 is a detail perspective view of the two rock-shafts, showing the manner of gearing the same together and showing, also, the brake-levers and connections. Fig. 4 is a detail perspective view of the adjusting link or yoke. A

Similar numerals indicateV corresponding parts in the several figures of the drawings.

Referring to the drawings, the wheel-pieces or side sills 1 of the truck are preferably arranged low down and formed with upwardlysem No. 541,784. (No man.;

extending U-shaped extensions, forming the pedestals 2, in which the usual journaleboxes 3 are mounted and-adapted to slide vertically in a manner Well understood.

The brake-shoes 4t may be of any` usual or preferred form or composition of metal, and to adapt them particularly to the form of brake-beam which I prefer to usein the oonstruction of the herein-described brake mechanism they are provided with two sets of parallel ears or lugs 5, which are 4perforated at 6 to receive the connecting-bo1ts which secure them to the brake-beams. 4The brakebeams 7 are arranged horizontally above the wheels and iniline with the wheel-pieces, but just inside of the vertical plane thereof, and are pivoted at their outer ends, outsideof the wheels, to suitable arms or braces 8 and 9 by a pin or bolt 10,'as shown.` The arms or braces 8 and 9 are bolted z or riveted to the wheel-piece upon the inner face thereof, the brace 9 being shown as extending upwardly in a vertical plane, and the brace 8 being inclined, as indicated, to give afrm support to the brake-beam 7 at its pivoted end, which lies between the upper ends of said braces 8 and 9. The brake-beams 7 at their inner adjacent ends are provided eachwith a link 1l, pivoted thereto at 12. The links 11 are bifurcated at their upper ends or .provided with parallel jaws which embrace the inner ends of the brake-beams, as shown, and thelower ends of said links are connected tothe upper end of 'an adjusting link or yoke 13 by means of a common pivot 14E, passing. through perforations in the upper bifurcated end of said yoke. The yoke 13 is formed with a threaded shank 15, adapted to receive athreaded nut 16, having downwardly projecting parallel `ears 17, adapted to embrace the outer swinging end of a crank-arm 18 on the end of a transversely-arranged rock-shaft 19, 2O indicating a through-bolt, by means of which the,

yoke 13 is pivoted to said crank-arm.

VThere are two rock-shafts 19, one for each pair of brake-beams, and each of saidlrockshafts is provided on its outer end, as above.

stated, with a crank-arm 18, and-upon its inner end with a spur-gear 21. The shafts 19 are mounted in suitable bearings which ,may

be attached to the upper frame-bars ofthe truck at convenient points, and the gears -21 IOC on their inner adjacent ends intermesh one with the other, so that rotary motion imparted to one of said shafts will be transmitted to the other. At a suitable point intermediate the ends of the rock-shafts the latter are provided with crank-arms 22, formed thereon or secured thereto in any usual or preferred manner, and provided at their upper ends with parallel jaws 23 and perforations 24 for 1o the reception of links 25 and vconnectingbolts 26. The links 25 extendv horizontally in opposite directions, and are pivotally connected at 27 to horizontal levers 28, intermediate the ends thereof. The inner ends of x 5 the levers 28 are pivotally connected at 29 to a ixed support on the truck-frame, and the outer ends of said levers receive, pivotally,

one the inner end of a forwardly-extending brake-rod and the other the inner end of a zo rearwardly-extending brake-rod. Thebrakerods 30 and 3l are connected at their opposite ends by means of chains or in any usual manner with the brake-levers extending up above the car-platform within reach of the 2 5 driver or motorman.

By means of the construction above described a simple and inexpensive form of brake mechanism is obtained, the brakes may be quickly and easily applied, and are reliable 3o in operation. By locating the brake-shoes above the wheels, instead of at the sides thereof, increased power is obtained and the brake mechanism as a whole is less liable to get out of order or to become injured by coming in contact with projections or objects along the road-bed. lt will also be apparent that the brake-shoes will be less liable to become clogged with ice and snow, dsc., and that owing to the downward pressure of the brake- 4o shoes the journal-brasses will not be worn oblong, as in the ordinary construction, thereby enabling the cars to run more smoothly and steadily. By adjusting the length of the yoke 13 the wear upon the brake-shoes may be compensated for or taken up in a manner that will be readily understood.

Parts of the truck not particularly herein described may be constructed and arranged in any usual or preferred manner.

Various changes in the form, proportion,

-and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of this invention.

l-laving thus described my invention, what l claim is l. ln a car brake mechanism, the brake beams arranged horizontally above the Wheel and pivoted outside thereof, the brake shoes 6o attached thereto and adapted to engage the tops of the wheels, a rock shaft extending transversely of the truck, a pivoted yoke capable of being extended or contracted longitudinally, links pivotally connected with said 65 yoke, said yoke and links being interposed between the brake beams and said rock shaft,

and suitable brake connections for operating said rock shaft, substantially as specified.

2. ln a car brake mechanism, a series of brake beams pivotally connected with the truck and extending horizontally above the Wheels, and in line with the Wheel pieces, the pivoted links secured to the inner adjacent ends of said brake beams, the yokes pivoted thereto, a pair of rock shafts arranged transversely of the truck and provided with crank arms to which said yokes are pivoted, the intermeshin g gears on said rock-shafts, and suitable brake connections for operating one of said rock-shafts, substantially as specified.

3. In a brake. mechanism for car trucks, a series of horizontally arranged brake beams pivoted to the truck frame and extending over and above the car Wheels, in combination with a pair of transversely arranged horizontal rock-shafts, t'ne intermeshing gears thereon for communicating motion from one to the other of said rock-shafts, the crank arms on the outer ends of said rock-shafts, a pivoted and adjustable yoke interposed between the inner ends of the brake beams and said crank arms, and suitable brake connections for operating one or the other of said rock-shafts, substantially as described.

a. In a brake mechanism for car trucks, a series of pivoted brake beams extending hori zontally over the car wheels and in the direction of the line of travel, in combination with a pair of horizontal rock-shafts arranged transversely of the truck, the intermeshing gears on said rock-shafts, the crank arms on the outer ends of said rock-shafts, the pivoted and adjustable yokes interposed between the adjacent ends of the brake beams, the pivoted links interposed between and connecting the yokes and brake beams, the operating crank arms or levers secured to said rock-shaf ts intermediate the ends thereof, and the links 25, levers 28, and brake rods 30 adapting the brakes to be operated from either end of the car, all arranged for joint opera` tion, substantially as specified.

5. ln a car brake mechanism, a transversely extending divided rock-shaft, the sections of which are geared together at their inner adjacent ends for communicating motion from one to the other, in combination with brake rods operatively connected with said rockshaft sections and extending oppositely in different directions or toward opposite ends of the truck or car, a series of brake shoes, and suitable connections between said brake shoes and the rock-shaft sections, substantially as and for the purpose set forth.

In testimony that l claim the foregoing as my own I have hereto affixed my signature in the presence of two wit-nesses.

ALFRED W. GABRIO. Witnesses:

S. D. ENGLE, J. E. GILEs.

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