US626504A - Wagon-brake - Google Patents

Description

M. Ei SAR-VIS. `WMMHI BRAKE.

(Application led Nov. 412,11898.)

un Model.)

FFICE MARY E. SARVIS, OF PITTSBURG, PENNSYLVANIA.

WAGON-BRAKE.

SPECIFICATION forming part of Letters Patent No. 626,504, dated June 6, 1899.

Application filed November 12,1898. Serial No. 696,221. (No model.)

To @ZZ when@ nur@ concern:

Be it known that I, MARY E. snnvlsa citzen of the United States of America, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Vagon- Brakes, ot which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain new and useful improvements in wagon-brakes- The object of my invention is to provide a device of this character which will immediately arrest the movement of the rear wheels of a wagon when desired, thereby stopping the same.

Briefly described, my invention consists of mounting upon the rod or brace of the wagon a casing having a pair of elongated brakeshoes mounted therein, operating longitudinally, a Wedgeshaped operating-block for perating the brake-shoes and connected by means of the rod to the brakewlever.

My invention finally consists in the novel combination and arrangement of parts hereinafter more fully described, and particularly pointed out in the claims hereunto appended.

In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, wherein like numerals of reference indicate correspending parts throughout the several views thereof, and in which- Figure 1 is a top plan View of a vehicle with the top removed, showing my improved brake in position, also showing in dotted lines the brake-shoes extended, engaging the rim of the rear wheels thereof. Fig. 2 is a longitudinal sectional view of a vehicle with my improved brake in position. Fig. is a perspective view of my improved brake means arranged in the casing therefor with the top removed. Fig. et is perspective view of the inner end of one of the brake shoes, showing dovetail means for connect-ing the same to the wedgeoperating block. is a cross-sectional Fig. o view on the line at, Fig. 3. Fig. 6 is a longitudinal sectional view of the wedge-operating block and brakeshoes, the outer end of the brake-shoes being broken away.

Referring to the drawings by reference-numerals, 1 indicates the top of the vehicle; 2,

secured to the brake-lever 21, as at 22.

the Wheels; 3, the axles; It, the reach or brace which is arranged between the running-gear, and 5 the pillow or bolster blocks for thel 55 axles. These may be of any desired construction.

Mounted on the rear portion of the reach or brace 4 and secured thereto by any suitable means, as shown at 5', is a casing con- 6c structed of any suitable material and which consists of a bottom 6, sides 7 7, and top S. This casing is adapted to receive and have operating therein myimproved brake means for a vehicle. Y The bottom 6 is provided at 65 its center with a V-shaped extension 9 on one side thereof and the opposite side with a square extension 10, which are adapted to support and have operate thereon the wedgeoperating block 11 for the brake-sh0es 12. 7o The wedge-operatin g block may be constructed of any suitable material, as well as the brake-shoes 12,\vhich are elongated, as shown. The sides 7 are formed of two sections, which when secured to the bottom 6 are suitably 75 spaced apart to allow the operation therethrough of the wedge-shaped block 11. -The sides 7 are also formed of two sections, and when secured to the bottom G are suitably spaced apart on the opposite side of the side 8o 7 and have secured thereto a vertical eXtension 13, which surrounds the V-shaped extension 9, as shown in Fig.

The wedge-operating block 11 has formed on each side thereof the dovetail grooves 14, which are adapted to have secured therein the dovetail inner end 15 of the brake-sl1oes 12. The outer end of the brake-shoes are formed with a Vshaped cutaway portion 16, which is adapted to engage the rim 17 of the 9o rear Wheels of a vehicle when the brake-shoes are extended.

1S indicates a pair of friction-rollers for the brakeshoes, which are mounted in the casing on each side of the wedge-operating block.

Connected to the Wedge-shaped block 11 by means of the bracket 19 is the operating-rod 20. This rod 2O is adapted to pass through the opening or aperture formed in the front pillow-block 5 and is adapted to be pivotally :oo

The brakelever is pivotally secu red to the bracket 23, which is connected to the underneath face of the vehicle-bottoni, as at 24, and the lever extends downwardly through, a slot 25, also formed in the vehicle-bottom., as shown in Fig. 2 of the drawings.

It will be observed that on the forward movement of the brake-lever the bar will force the wedge-block into the casing, thereby eX- tending the brake-shoes outwardly until the V-shaped cut-away portion engages the rim of the rear wheels, which then will arrest the movement of the vehicle.

It will be noted that various changes may be made in the details of construction without departing from the general spirit of my l invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1.. In a wagon-brake, the combination of .a

casing havin-ga V-shaped integral portion at v one side thereof, and an integral extension fori-med on its `other side, a wedge-.shaped block 4arranged in -said casing and adapted to operate upon the extension and into said V- shaped portion, a pair `of elongated brakeshoes arranged within the casing and connected to said wedge-shaped block., and means connected to said wedge-shaped block for operating the same transversely .and the brake-shoes longitudinally of the'casing., .substantially as described.

2. In a wagon-brakathe combination of a casing suitably supported :and .having an fexl tensionformedat its one side, Ja Wedgeshaped block arranged within the casing and ope-rating upon said extension, a pair fof elongated brake-shoes arranged lwith-in the `casi-ng and connected at their inner ends to said wedge- -shaped block vand means connected to .said

Wedge-shaped block for operating the sain-e transversely of the casing, and the brakeshoes longi tudinail y thereof, substantial] y as described.

3. Ina wagon brak-e -a casin g suitably mounted on the .reach Aor brace of the vehicle, a wedge-operatin g block operating 'fthe-rein, a

pair of elongated brake-shoes Aconnected to said block havinga V-shapedcut-away'portion in their outer ends, friction-.rollers .mounted in said casing, and means whereby the :said block .is operated to bri-ng the brake-shoes into engagement with the rim of the rearV tially as shown and described.

5. In a` wagon-brake, the combination of a casing suitably supported from the wagon with a V-shaped portion at its one ,side and an extension at its opposite side, a wedgeshaped block operating within the casing and V-shaped portion and upon lsaid extension, a pair of brake-shoes connected at their inner ends to said wedge-shaped block and at their outer ends being provided with a V-shaped cut-away portion, and actuating means `connected to said block i'loroperating the brakeshoes, substantially as described.

In `a wagon-brake, the combination of a casing, a pair of elongated brake-shoes arranged in .sa-id casing, a wedge-shaped block i operating within the casin g and slidably connected to the inner ends ofy the said brakeshoes, and actuating means connected `to the block lfor operating the brake-shoes, substantially as described.

7.-. In a wagon-brake, the combination of a casing suitably supported from the wagon, a pair of elongated brake-shoes arranged in said casing and having a V-shaped cut-away portion in their Iouter ends, an `operatingblock arranged within the casing and'slida'bly connected to the inner ends of said bra-keshoes, and actuating means connected to said block for lop'eratin g the brake-shoes, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

' MARY SARVIS. Witnesses:

.JOHN NoLAND, E. W. ARTHUR.

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