US292366A - Teeeitoey - Google Patents

Description

(No Model.)

J. ROSQUIST. CAR FOR INGLINES' IN MINES.

No. 292,366. Patented Jan. 22, 1884.

' INVENTOR ammo STATES PATENT f Darren.

JOHN ROSQUIST, or PARK CITY, UTAH rnnnrronv.

CAR FOR INCLINES IN M|NES..

SPECIFICATION forming part of Letters Patent No. 292,366, dated January 22,,188].

I Application filed August 31, 1883. (No model.)

1"0 on whom it may concern.-

Be it known that I, JOHN Ros UIsr, of Park City, in the county of Summit, Utah Territory, have invented a new and useful Improvement in Cars forlnclines in Mines, of which the following is a full, clear, and exact description.

This invention consists in a novel self-acting pawl attachment to cars for inclined planes in mines, whereby on the rope or other appliance which controls the raising and'lowering of the car giving way the pawl or pawls are made to automatically engage with a locking rack or ranks on the track, to stop the car at any point thereon, thus making the car a safety one.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a central vertical longitudinal section of a mine-car in part, and inclined trackon which the same runs, with my improvement applied, and showing the safetyattachment as out of action duringthe ordinary travel of the car. Fig. 2 is a plan of the same, with the parts in like position; and'Fig. 3, a vertical longitudinal section in part, showing the car as stopped by its automatic safety-attachment.

A is the frame of the car, on which the usual bOX lS arranged, and which runs by its wheels I) b on the rails '13 B of an inclined track, such as is usual in mines. Secured to the track, between the'rails B B and parallel with them, are a pair of locking-racks, O 0, formed with hook-shaped teeth arranged with their lockingfaces toward the summit of the incline, and set slightly inclining backward in a downward direction. These'racks run the whole length of the inclined track, or thereabout.

D D are hooks or pawls fastened at their inner ends to a cross-beam or shaft, E, having its bearings in or near the front. ends of the sides of the frame A, and being free to turn or rock therein.

F F are springs attached at their one end to the frame of the car or to one of its stationary axles, and coiled around and secured at their opposite end to the rocking beam or shaft E, in such manner that said springs will have a normal tendency to so turn said beam or shaft as that the pawls D D will be thrown down into engagement with the locking-rack G O.

chain, or rope, dattached at its inner end to a short tongue, 0, secured to the rocking-beam E at an angle, when the pull is on it, to so turn the beam E against the action of the springs F F as to keep the pawls D D free from en gagement with the racks O O, which connection, d, as also other draft-connections, f f, connected directly with the frame of the car, unite at their outerends with the'rope or other appliance used to raise and'lower the car. In this way or by these means whenever the ropeor other appliance 'used to raise and lower the car breaks ,or gives way the springs F Fwill so turn'the beam E as to throw the pawls D D into engagement with the racks O O, as shown in Fig. 3, thus automatically stopping the car at any point in the length of the incline.

I have here described duplicate racks O C, pawls D D, and springs F F, but do not re strict myself to any number of these, one or more of each being used as desired.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. In cars for ascending and descending inclines in. mines, the combination, with the car, its inclined track, and one or more lockingracks on said track, of an automatic pawl attachment to the car, connected with and con trolled by the rope or appliance by which the car is raised or lowered, substantially as specified, and whereby in case of said rope or appliance giving way the car will be stopped at any portion of or different points in the length of the track, as herein set forth.

2. In cars for ascending and descending inclines in mines, the combination, with the draft devices or connections between the car and the rope or appliance by which the car is raised or lowered, and with one or more lockingracks on the car-track, of a rocking beam or shaft carried by the car, and connected ,with

ing the shaft to throw the pawl or pawls into engagement with the rack or racks, and the tongue 0 and draft-connection d, forholding the pawl or pawls out of lock with the rack or racks. essentially as and for the purposesherein set forth.

JOHN ROSQUIST.

\Vitnesses:

CHARLES SHIELDS, E. C. WILLIAMsoX.

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