US57538A - Improvement in wagon-brakes - Google Patents

Description

UNITED STATES PATENT OEEIoE.

JOHN S. MCGLUMPHY, OF WIND RIDGE, PENNSYLVANIA.

IMPROVEMENT IN4 WAGON-BRAKES.

Specification forming part of Letters Patent No. 57,538, dated August 28, 1866.

To all whom 'it may concern:

Be it known that I, JOHN S. MOGLUMPHY, of Vind Ridge, in the county of Greene and State of Pennsylvania, have invented a new and useful Improvement in Automatic Brakes for Wagons; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, made part of this specification.

The object of my improvement is so to at- "taoh the brakes of wagons that by raising the tongue, as always occurs in going down hill, the brakes shall be automatically applied to the hind wheels.

The wagon is of` ordinary construction, my brakes being applicable. to all varieties of vehicles where a tongue is employed. Under the front axle is attached a bar of iron, A, which has in the middle 'au opening left by bending the bar, or constructing it with an eye for receiving the end of the brakebar C, which is secured -by the king-bolt B, passing through the bolster, sand-board, and axle, and extending through the bar O and eye A.

The bar C is bifurcated and bent so as to pass below the coupling, as shown in the drawings. The ends O are finished with a screw for receiving the tension-nuts E, which are atv tached by a swiveljoint to short rods projecting from the ends ofthe brake-levers D, which are pivoted in the middle, and have rubbers F on the outer ends, as'shown. These rubbers may be constructed with jaws and attached by a yoke-formed pin, G, as shown, or in other suitable and ordinary manner.

The nuts E are so adjusted that when the wagon is in its normal state the rubber will not touch the'wheel; butwhen the tongue is raised, the center of motion being in the space between the sandboard and axle, where the coupling is attached to the king-bolt, the lower Vend ofthe king-bolt will be thrown forward,

carrying with it the rod C, which, advancing the inner ends of the levers D, press the rubbers on the face of the wheel. The brakes will be relaxed when the tongue is lowered. Thus the brakes will be applied whenever the horses are holding back in descending a hill or stopping.

Having explained the nal ure of my improvement, what 1 claim as my invention, and seek to secure'byLetters Patent, is-

In combination with the rubbers F and levers D, the bifurcated bar C and adjustingnuts E, the same being respectively attached to the lower end of the king-bolt B and to the brake-levers D, substantially as and for the purpose set forth.

In testimony whereofl have signed my name to this specication in the presence of two subscribing witnesses.

JOHN S. MCGLUM PHY.

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