US912846A - Safety-brake device for railways. - Google Patents

Description

. J. F. HOWARD. SAFETY BRAKE DEVICE FOR BAILWAYS.

urmommn'rnnn JULY 1a, 1909.

Patented Feb. 16, 1909 W/T/VESSES: I v .INVE/VTOE M 1 Wm A'TTOENEY UNITED STATES PATENT OFFICE;

JAMES FOLEY HOWARD, OF SPOKANE, WASHINGTON, ASSIGNOR OF ONE THIRD TO GEO. ORYDERMAN, OF SPOKANE BRIDGE, WASHINGTON.

SAFETYJBRIAKIE DEVICE FOR RAILWAYS.

Specification of Lettem'Patent.

Patented Feb. 16, 1909.

To all whom it may concern:

Be it known that I, JAMES FOLEY How- ARD, a citizen of the United States, residing at Spokane, Washin ton, have invented cer- 6 tain new and useful mprovements in Safet Brake Devices for Railways, of which tli e following is a specification.

This inventionrelates to safety brake devices for railways, and particularly to that 10 class thereof employing a trip beside the track, which is set when a switch or the like is 0 ned, or other danger exists, to strike a coc in the train pipe of the brake system and open the same and thus stop the train. The object of the invention is to form an im roved device of the kind, as will more fu y appear hereinafter. Theinvention is illustrated in the accompanying drawings, in which- Figure 1 is a side elevation, partly broken away, of the apparatus, Fig. 2 is a similar end elevation. T

Referring specifically to the drawings, 6 indicates a car or the like with the train pipe 7 of-its brake system having a depending *branch 8, supported on opposite sides by the braces 9. At the lower end the branch pipe has a cock 10. with a crank arm 11 projecting outward] from the stem thereof. This arm is located in position to strike an inclined trip 12 when the latter is lifted to operative position. The trip is pivoted at one end, as indicated at 13 to a plate 14 fixed to the ties, said plate forming the top of a box-15. At the other end the tri is connected by slot and pin 16 to a stan ard or upright 17 which works. up and down in guides consistingof a hole -in the top plate and a socket 18 oqlt'he bottom of the box. T he standard is 40 connected near its lower end, at 19, to the cross bar of the cores 20 of electro magnets =21, the coils being supported in the box by brackets 22. T he coils are in circuit with linzwires 23 leading to a push button,

switch, or other circuit-closing device b means of which the magnets are energize electric lamp 26 or other signal device, 10-

cated in any convenient position for inspection by the switch operator and also if need be by the engineer.

When the switch or the like is operated and the circuit 23 closed, the electro-magnets act to lift the cores and the standard and the latter raises the trip to position to strike and open the cock, thereby applying the brakes and stop ing the train. At the same time, the sigma -light 26 is operated, thereby indicating to the operator that the trip is in active position. When not in position, the light remains out. It is thus impossible for a train to run by a danger point. When the circuit 23 is opened, the tri and connected parts drop b the weight t iereof. i 'lhe device is simple and free from complicated parts, and hence quite certain of action.

I claim; 3

In an automatic trip brake for railways,

the combination of a cock connected to the train pipe and having an o crating crank arm pro ecting adjacent to t e track, a trip pivoted at oneend beside the track and ar-' ranged to strike the arm and open the cock when lifted, abox beside the track, having a guide opening inthe top' and .a socket at the bottom, an electro-magnet in the box, and connected to an operating circuit, and a standard working in said guide 0 ening and socket, and connected above the ox to the trip and connected within the box to the core of the magnet.

In testimony whereof I aflix my signature in presence of two witnesses.

C. RICHARDSON, H. E. SMITH.

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