US805644A

US805644A - Rail-brake.

Info

Publication number: US805644A
Application number: US26043205A
Authority: US
Inventors: Benjamine V Gilmore
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-05-15
Filing date: 1905-05-15
Publication date: 1905-11-28
Anticipated expiration: 1922-11-28

Description

PATENTED NOV. 28, 1905. v

B. V. GILMORE. RAIL BRAKE. APPLIOATION rum) MAY15, 1905.

w 0 L 6/ fl B A p i a w if Q/vi eoaea UNITED sTATEs PATENT oFFToE.

Specification of Letters Patent.

Patented Nov. 28, 1905.

Application filed May 15, 1905. Serial No. 260,432.

To all whom it may concern:

Be it known that I, BENJAMINE V. GILMORE, a citizen of the United 'States, residing at Redhouse Shoals, in the countyof Putnam and his invention relates to Improvements in friction-clutches, and more partlcularly to that for cars or other similar purposes.

It has for its object to produce a device of this character which will be very effective in operation and which is at the same time very simple and durable in construction.

eference is to be had to the accompanying drawings, in which- Figure 1 is a perspective View of the device.

ig. 2 is a top plan view of the device, showing it applied. ig. 3 is a transverse section on the line of Fig. 2 looking in the direction of the arrows.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

This device is intended primarily to be used as a brake for controlling the speed of cars which are moved down steep grades by the force of gravity.

he numeral 1 device, which is preferably made integral, so as to withstand great strain, and is formed with flanges 2, extending downward and inward to embrace the head of a rail 3. A lever 4, having an eccentric portion 5, is pivotally mounted upon the top of the body 1 between two upwardly-projecting lugs 6. The

eccentnc portion operates upon a shoe 7, lo-

pawl 8 is also pivotally mounted upon the top of the body 1, so as to engage a series of notches 9 on the eccentric portion 5 of the lever to prevent same from swinging backward to relieve the pressure upon the shoe 7 The rail 3, upon which the brake operates, is intended to be located between the two rails of the track, and the device is connected to the car by means of a chain 10. Removable strips 11 are secured upon the upper side of the inturned portions of the flanges 2 and are adapted to bear against the lowerside of the head I of the rail 3. I wear and tear will be upon I the shoe 7, which can be very I combination of designates the body of the I be seen that all the the strips 11 and quickly and cheaply renewed when necessary.

In operation the chainv is attached to the rear of the car, so that in its descent it will be compelled to draw the brake along the rail 1e operator grasps the lever 4 and walks along behind the car. In order to check the speed of the car, it is simply necessary to pull It will thus the lever around, so that the eccentric portion 5 will force the shoe against the rail with a greater pressure. The pawl 8automatically engages the notches 9 in the eccentric portion, so that any sudden or accidental releasing of the brake is rendered impossible.

This device will be very useful on mineslopes for safely moving machinery or other appliances or for holding coal-cars on steep grades and may also be used as a safety device for elevators and mine-cages.

aving' thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a device of thecharacter described the a guideway, a member sliding thereon, a shoe bearing against the guideway, and a lever mounted upon the sliding member and avingan eccentric portion to bear against the shoe.

2. In a device of the character described the combination of a guideway, a member sliding thereon, a shoe bearing against the guideway, a lever mounted upon the sliding member and having an eccentric portion to bear against the shoe, and a pawl adapted to engage notches in the eccentric portion to prevent any backward movement of the lever.

3. In a device of the character described the combination of a guideway, a sliding member having downwardly and opening, a lever mounted upon the sliding member and having an eccentric, portion to operate upon the shoe, and a pawl adapted to fore-mentioned opening, and a lever mounted engage notches in the eccentric portion to preupon the sliding member and having an ecvent any backward movement of the lever. centric portion to operate upon the shoe.

5. In a device of the character described the In testimony whereof I aifix my signature in 5 combination of a guideway, a sliding member presence of two Witnesses.

having downwardly and inwardly promoting BENJAMINE v GILMORE [1h 3.] extensions to embrace said guideway and having an opening therein, removable portions Witnesses: upon the inwardly-projecting extensions of (J. W. GRANT, 10 the sliding member, a shoe located in the be i L. A. HIGGINBOTHAM.