US743381A - Cable-grip. - Google Patents

Description

PATENTED NOV-3, 1903.

W. 0. GUNGKEL.

CABLE GRIP. 1PPLIOA'1ION FILED mm. 1a. 1903.

N0 MODEL.

W T ESSES Horne THE NORRIS PETERS CDyHOTO-LXTHOY, WASNINBTDN. n c,

- UNITED STATES iatented November 3, 1903 I PATENT OFFICE.

CABLE-G RIP.

SPECIFICATION forming part of Letters Patent No. 743,381, dated November 3, 1903.

Application filed February 13 1903. Serial No. 143,253. (No model.)

To all whom it may concern..-

Be it known that I, WINFIELD O. GUNCKEL, a citizen of the United States,residingat-Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in Gable-Grips; andIdo hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to automatic grips used on mine-cars on cable-railroads; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a side view of a cable-grip constructed according to this invention. Fig. 2 is an end viewof the same. Fig. 3 is a side view of a modified grip. Fig. 4 is a plan view from below of the grip shown in Fig. 3. Fig. 5 is a side view of another modification of the grip. Fig. 6 is an end view of the grip shown in Fig. 5.

A is a portion of the bottom of a mine-car which runs on rails in the ordinary manner 7 B is the cable, provided with grip membersor balls (2, by means of which the cars are drawn along the rails, said'parts being also of any approved construction and material.

In the form of the invention shown in Figs. 1 and 2 a single bracket C is secured to the bottom of the car and is provided with a pivotpin 0. D represents arms, which are pivoted on the pin 0. These arms project in opposite directions and are inclined downward. These arms have heels or stops d, which bear against the bracket and prevent the arms from descending, but which permit the free ends of the arms to rise. The free ends of the arms D are provided with curved and forked claws E, the forked portions 6 of which engage with the balls on the cable. The claws E (shown in Figs. 1 and 2) are pivoted to the free ends of the arms D by pins f and are provided with stops g, which permit the claws to move inward or toward each other on their pivots, but which prevent them from movingoutward. H represents guide-loops secured to the bottom of the car and engaging with the free end portions of the arms D. These guideloops may be dispensed with in this form of.

the device, if desired, or they can be used to prevent the arms from being displaced laterally, if necessary.

In the modified form of the grip shown in Figs. 3 and 4: two brackets O are used instead of the single bracket 0 and the arms D are pivoted on pins 0 in these two brackets, so that they project in opposite directions, the same as hereinbefore described. The guideloops H are also used as supports for the arms to prevent them from descending lower than desirable. In this form of the device the curved and forked claws E are formed integral with the arms instead of being pivoted to them; but otherwise the claws are the same as hereinbefore described, and the claws might be pivoted to the arms, as hereinbefore described, if found desirable.

In the modified form of the-grip shown in Figs. 5 and 6 the claws E are also formed integral with the arms D; but the arms are pivoted to a single bracket 0, the same as in Fig. 1, instead of being pivoted to two brackets, as shown in Fig. 3.

In operation all these grips are similar to each other. The ball on the cable lifts the forked claw at one end of the grip and passes into engagement with the claw at its other end. The car is drawn along by the cable on level ground and on upgrades. When the car descends a steep downgrade and begins to run faster than the cable, the rearmost claw of the grip engages with the ball on the cable, so that the car does not continue to run faster than the cable and does not acquire a dangerousrate of speed.

What I claim is- 1. In a cable-grip, the combination, with a support, of two downwardly-inclined arms having their upper ends pivotally connected with the said support and projecting in opposite directions, means for preventing the arms from moving downward but permitting them to move upward, and grip-claws carried by the free ends of thesaid arms, substantially as set forth.

2. In a cable-grip, the combination, with two supporting-brackets, of two downwardlyinclined arms having their upper ends pivoted to the said brackets and projecting in opposite directions, means for preventing the arms from moving downward but permitting them to move upward, and curved and forked I limiting the outward movements of the said 10 grip-claws carried by the free ends of the said claws, and means for limiting the downward arms, substantially as set forth. movements of the said arms.

3. In a cable-grip, the combination, with a In testimony whereof I affix my signature 5' support, of two arms having their upper end in presence of two Witnesses.

portions pivoted to the said support, said WINFIELD O. GUNCKEL. arms being inclined downwardly in opposite Witnesses: directions, grip-claws pivoted to the free J. E. SOHOEMEHL,

lower end portions of the said arms, stops for E. R. BAINES.

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