US740595A - Wagon-brake. - Google Patents

Description

No'. 740,595. PATBNTBD 0016,- 190,3,

c. E. SHERMAN. f

WAGON BRAKE.

APPLIUATION FILED 11mm. 1902.

N0 MODEL.

wuantoz v UNITED STATES atented October 6, 1903;.

CHARLES E; suERMANgoE-UNION, OREGON.

WAGON-BRAKE.

SPECIFICATION forming' part of Letters fatemi; No. 740,595, dated October 6, 1903.

Application filed December 4, 1902. Serial No. 133,911. (No model.) l

To a/ZZ whom, it may concern:

Be it known that I, CHARLES E. SHERMAN, a citizen of the United States, residing at Union, in the county of Union and State of Oregon, have invented certain new and useful Improvements in W'agon -Brakesg and I do declare the'following to be 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.

My invention relates to an improvement in Wagon-brakes, particularly with reference to the provision of a relief-spring for removing the brake shoes from Athe Wheels When the brake-lever has been released; and it con sists in the peculiar construction and combination of devices hereinafter fully described and claimed.

The object of my invention is to provide a Wagon brake apparatus With a relief-springV -Which is effective to 'instantly remove the brakesl1oes from the Wheels When the brake!Y lever is released.

In the accompanying drawings, Figure 1 is a side elevation of the rear truck of a Wagon running gear provided With my improved brake apparatus,.the rear Wheel being re` moved. Fig. 2 is a horizontal sectional view of the same, taken on a plane indicated by the line a a of Fig. 1.

In the embodiment of my invention here shown the brake bar 1, Which carries the brake-shoes 2, is suspended from a cross-bar 3 (here shown as disposed on the hounds 4) by means of suspending links 5, which are here shown as rods, but which may in practice be chains or straps. On the rear axle 6, near its center, is a clamp 7, which comprises a U -shaped bolt 8, that passes around the axle from the rear side thereof, and a verticallydisposed bar 9, which bears against the front side of the axle, has openings for the reception of the arms `of the bolt 8, and is secured thereon by means of the taps 10. N ear the lower end -of the said bar is an opening 11, in which is guided the rear portion of a longitudinally-movable rod 1 2,Whicl1 rod has its front end flexibly connected to the central portion of the brake-bar by a clip or other suitable device 13.

The brake -lever 14C may be either lof the j construction hereshoWn or of any other suitable construction. As here shown it is pivotally mounted in bearings 15 on thefront side of the rear axle andhas near its center a dovvnvvardlyextending arm 16 and at one end an upwardly extending leverarm 17. The arm 16 is connected by a rod or other suitable link 1Sv to the brake -bar 1, and by means of the brake-lever the brake-bar may lbe operated inthe usual manner to apply the brake-shoes to the wheels carried by the rear axle.

In orderto insure the release of the brake shoes from the Wheels when the brake-lever has been released, I provide-a spring 1),which is here shown as a coil-spring disposed on the The rear end of this spring bears against a Washer 20, which is interposed between it and the bar 9, and the front end of the said spring bears .against a Washer 21, Which is secured on the rod .112 by a linchpin 22, the latter being inserted in a transverse opening in said rod.

When the brakes are applied, the springis contracted, and when the brake-lever is released the spring acts to remove the brakeshoes from the Wheels.

From lthe Aforegoing description, taken in connection With the accompanying drawings,

the construction and operation of the invenA tion will be readily understood Without re-V quiring a more extended explanation.

Various changes in the form, proportion, and the minor details of construction maybe resorted to Without departing from the principle or sacrificing any of the advantages of this invention.

Having thus described my i11\-*ention,\vhat I claim as new, and desire to secure by Letters Patent, is-

A Wagon brake apparatus comprising a brake-bar having supporting-hangers, a rockshaft having a crank-arm and a lever, means to mount said rook-shaft on an axle, a rod oonneeting the Crank-arm of said rook-shaft with the brake-bar, a clip-bolt adapted to be attaohed to an axle, and having a yoke-bar 9, forming a guidesupport, a longitudinallymovable rod attached to the bai' and slidably engaged by its said support, and a relief-spring on said rod ooaoting therewith and said support to normally 'maintain the brake bar in disengaged position, substantially as dezu scribed.l

In testimony whereof I have hereunto set my hand in presenoeof two subscribing Witnesses.

CHARLES E; SHERMAN. Witnesses:

GEO. W. AMES, L. J. DAVIS.

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