US83032A - Improved wagonxbrak - Google Patents

Description

s. R. BOLTON.

Wagon Brake. Y u. l

Patented oct. 13, 1868.

Not 83,032.

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srMnoN R. BOL-TON, or rnnsoorr, WISCONSIN;

Lette/rs Patzmt No. 83,032,

dated October 13, 1868.

IMPROVE!) WAGON-BRAKE.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern Be it knownthat I, Shimon R. BOLTON, of Prescott, in the countyof Pierce, and State of Wisconsin, have invented a new and useful Improvement in Wagon-Brakes; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a. bottom view of a wagon, having my improved brakes applied thereto.

Figure 2 isa view from a section through the line a: x, iig. l.

Figure 3 is a detail section of the shoe and shoe-box.

Similar letters of reference indicate like parts.

The object of this invention is 1to provide a simple and eiiicient braking-apparatus for Vehicles.

It consists ofthe braking-mechanism herein set forth.

In the drawings, a is a brake-bar, arranged crosswise of the reach-pole b, and attached to the guide` iron el, aixed to the reach by means of staples, so as to .permit the said brake-bar a short travel to and from the hind wheels ofthe vehicle.v

This brake-bar bears at its extremities the brakeshoes e,so that when the brake-bar is moved toward the hind Wheels, the brake-shoes will 'bear upon the tires of the said wheels, and produce the proper brak ing eiect. The shoes are `not firmly aixed to the brake-bar, but are formed with dovetailed tongue, which works iu corresponding slotted blocks f, atiixed rmly to the brake-bar, as shown.

The shoes thus attached are enabled to slide upward freely when the vehicle is backed, for the friction of the tire against the face of the said shoes will tend downward, will tend to loosen their contact with the wheels when so lifted.

By this construction, the shoes are prevented from exerting a braking eilect when the vehicle is backed; for, oy the backing-operation, the brake-bar is thrown backward to bring the shoes in contact with the wheels, precisely in thersame manner as it is thrown bac-kward to edect the braking or locking of the vehicles when going down a declivity.

The shoes are wedge-shaped, as shown, and lift verwheels in backing; but the forward motion ofthe camwheels tends to increase the braking effect, by drawing the shoes downward and wedging them iirmly between the wheels and the blocks f on the brake-bar.

The sliding or lifting connection of the slices may be obtained in any suitable manner; but l prefer to use a box-shaped plate f, (see iig. 3,) containing two rollers, g y.

The rear edges of the box-shaped plate are bent to enter the lateral grooves on the tongue 'i of the shoe, as shown.

Aii'ixcd to the tongue is a plate, h, having its'upper end-bend horizontal, to cover the upper end of thel cavity of the plate, and exclude dirt from the tire thatmight otherwise get therein.

The brake-bar is actuated toward thc hind wheels byv nicans of the device which connects it with the neck-yoke of the team.

These devices are- First, a lever, pivoted in the end ofthe tongue.

Second, a rod, j, L, attached to thc lower end 'of the lever, and driving along the under side of the tongue.

Third, the link l, enclosing the king-bolt, as shown, and attached to the-rod 7c.

Fourth, the rod lm., joined to the link l, and toa lever, n, pivoted in the reach-pole, the upper end of which lever is connected with the brake-bar by a short rod, o. The lever n is placed beyond the brake-bar, and

l acts to draw it toward the wheels.

I desire to be understood as not limiting myself to the ,precise arrangement ofthe rods and levers, as the brake-bar may be actuated by any of the tongue-connections heretofore used for actuating brake-bars.

Nor do I wish to claim broadly the'lifting-shoes, for

various forms of such have been made.

rlhe Operation of my brake is as follows:

The team, in holding back when descending a deolivity, bring the neck-yoke to act against the upper end of the lever j, pulling it backward, which action throws the upper end ofthe lever 'nbackward, drawing the brake-shoes against the wheels. When the level road is reached, and the holding-back strain is removed from the tongue-lever, a spring, p, arranged to act against the lever fn, in the manner shown, throws it perpendicular', thus moving the brake-shoes from contact.

Having thus described my invention,

I claim as new, and desire to secure by Letters Patentl. The brake-shoe c, constructed as described, with its rearface inclined downwardand sliding by the dovetailed edge i, and bent plate h upon the rollersg in the box j, all arranged as described, for the purpose specified'.

2. The arrangement of the bent lever j, connectingrods lol m, lever a, spring p, rod o, guide-iron d, brakebar a, box f, and sliding shoe c, all operating as described, for the purpose specified.

3. The arrangement Oi' the brake-bar a, sliding by means of staples upon the guide-iron d, thc box f, rollers y, and sliding shoe c, herein described, for the purpose specified.

The above specification of my invention me, this 6th day oi' July, 1.868. l

- SIMEGN R. BOLTON.

signed by Xlitnesses:

FRANCIS, Herr, V. M. Dennison.

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