US288659A - John c - Google Patents

Description

J. G. PARK.

WAGON BRAKE.

(No Model.)

No. 288,659. Patented Nov. 20, 1883'.

INVENTOE.

ATTORNEYS.

1 ilnrrnn' SrArEs' ArENr. Fries.

JOHN C. PARK, OF JEFFERSON, GEORGIA, ASSIGNOR OF ONEHALF TO ANTONY W. PO'ITS, OFSAME PLACE.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 288,659, dated November 20, 1883.

i Application filed June 8, 1883. (X0 mmleld To (ZZZ whom it may concern.-

Be it known that I, JOHN C. PARK, a citi zen of the United States, residing at Jefferson, in the county of Jackson and State of Georgia, have invented a new and useful WVagon-Lock, of which the following is a specification, ref erence being had to the accompanying drawings.

This invention-relates to automatic wagonbrakes; and it hasfor its object to produce an automatic brake which shall possesssuperior advantages in point of simplicity, durability, ease of, operation, and certainty of action and general efficiency.

To this end it consists in the improved construction and arrangement of parts, which will be hereinafter fully described, and particularly pointed out in the claim.

In the drawings hereto annexed, Figure 1 is a perspective View of the running-gear of a wagon equipped with my improved brake. Fig. 2 is a longitudinal vertical sectional view of the same, and Fig. 3 is a View illustrating a modification;

The same letters refer to the same parts in all the figures. V A. in the drawings designates the front, and B th'e'rear, axle of an ordinary wagon runninggear, which said axles are mounted upon the wheels 0. V

D D designate the front hounds, E the sand board, and F the front bolster.

l G is the rear holster, and H H the rear hounds.

I represents the reach or coupling pole, which is mortised, in the usual manner, into the rear axle, and the front end of which has a slot, .I, to receive the kingbolt K, by which it is connected to the front axle, and upon which it will thus be seen thatthe said coupling-pole is capable of a longitudinally-sliding motion. Placed on top of the reach or coupling-pole is an iron plate, L, the front end of which is pivoted upon the king-bolt. The rear hounds are connected with the couplingpole by the linchpin M, which passes through a slot, N, in the cap-plate L. It will thus be seen that the coupling-pole and the rear axle, with its attachments, are capable of slidinglongitudinally in relation to the front axle, while the cap-plate L remains stationary.

O is a rod, of round "iron or other suitable material, at the center of which is formed an eye, P, to receive a pin, Q, by which it is pivoted upon the cap-plate L, in front of the hind wheels. The ends of the rod O are bent or curved so as to clear the rear hounds, and they carry the brake-shoes It R, which may be of any suitable construction.

One of the bolsters, preferably the front one, has a shallow groove or recess, S, in which is seated a long roller, T, upon which rests the wagon-body or load supported upon the bolsters. WVhen this roller isapplied to the front bolster, as shown in the drawings, it will permit the wagon-body to movelongitudinally, together with the reach and the hind running gear. \Vhen applied to the rear bolster, it will prevent friction between the body or load and the rear runninggear, thus permitting the latter to move freely longitudinally, as stated. 7

Theoperation of this invention will be readi ly understood from the foregoing description, taken in connection with the drawings hereto annexed. On level roads, or in going uphill, the brake mechanism will be out of operation; but in going downhill the hind part of the run= ning-gear will slide forward until the wheels engage the shoes upon the brake-bar pivoted upon the stationary cap-plate L, thus retard= ing the progress of the vehicle. g

I prefer that the body or load should have a longitudinally-sliding motion upon the front bolster, for the reason that the weight of the load will tend to make the operation of the brake mechanism more certain. i

In Fig. 3 of the drawings I have shown a modification of the invention, which consists in simply bending the cap-plate L up over the rearhounds and pivoting the brake-banwhich in this case is made of wood, to the under side of the said cap-plate. The operation is precisely the sameas before. r

This invention, as will be readily seen, is susceptible of Various modifications without departing from the spirit and scope of the invention. In view of this I do not limit myself 1 to the precise construction and arrangement of parts herein shown; but,

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States 7 The combinatiomwith the running-gear constructed as herein described, of the longitudinally-movable rear axle, the cap-plate pivoted upon the king-bolt, and the brake-bar O, pivoted upon said cap-plate, said brake-bar consisting of an elastic metal rod formed with a central eye, 1?, to receive the pivotingpin Q, and having shoes R attached to its outer ends, which are curved, so as to clear the rear hounds, as set forth.

In testimony that I claim the foregoing as my own I have hereto afiixed my signature in presence of two witnesses.

JOHN C. PARK.

\Vi t nesses:

H. WV. J. HAM, DANIEL FOWLER.

Images