US754604A - Brake-shoe holder. - Google Patents

Description

No. 754,604. PATENTED MAR. 15, 1904.

. j A. M.LPENN00K.

BRAKE SHOE HOLDER;

APPLIOATIQN FILED JULY 14, 1908.

Y no MODEL.

UNITED. STATES Patented March 15, 1904.

PAT NT- F AMBROSE MICHAEL PENNOCK, or BoURBoNfiviissouRi, Assieuoa or, QNE-HALFTO WILLIAM J. THORNEHILL,OF-BOURBON,'MISSOURI.

BRAKE-SHOE HOLDER;

SEECIFICATION forming part of Letters Patent No; 754,604, dated March 15, 1904.

. Application filed m 14, 1903.

To all whom, it may concern Beit known that I, AMBRosE MICHAEL PEN- NooK, a citizen of the United States, residing at-Bourbon, in the county of Cranford and State of Missouri, have invented a new and useful Brake-ShoeHolder, of, which the following is a specification. V.

This invention relates to the. brakes ofvehicles, more particularly to those employed upon farm or -lumber wagons, and has for its objectto simplify and improve thev devices whereby the brake-shoesare connectedto the beams. p

The invention consists'in certain novel features of constructiomas hereinafter shown and described, and specified in the claims.

In the drawings illustrative of the invention, in which corresponding parts are denoted by like designating characters, Figure 1 is a perspective view of one end of a brake-beam with the improved device applied. Fig. 2 is a bottom plan view of the parts shown in Fig. 1. Fig. 3 represents perspective views of the parts comprising the device disconnected. Fig. 4 is an inverted perspective View of the wear-plate detached.

The improved device may be applied to any of the various sizes and forms of brake-beams employed upon ordinary farm-wagons and similar vehicles, and in the, drawings represents one end of one of this class of beams.

It will be understood that one of the devices will be employed upon each end of the beam; but as they are both precisely alike one only is shown for illustration.

The improved device consists of two opposing jaw members each represented as a whole, respectively, at 11 12 and each formed with a transverse aperture through which the end of the beam 10 passes, as shown. The jaw members are arranged to cross each other upon opposite sides of the beam and are provided with recesses 13 14 at their crossing-points, and they are pivotally connected to the beam by a bolt 15, passing through the beam and the jaw members at their crossing-point, as shown. At one sideof the beam the jaw members are provided with serrated or toothed bearingsurfaces'16 17 adapted to embrace the oppo- Serial in. 165,459. (No model.)

. sitesides of the brake-shoe 18, of the usual form, which are recessed upon opposite sides to receive the serrated ends of the jaw members. At the opposite side of the brake-beam a clamp-bolt 19 is arranged with one end flattened and passing through anelongated aperture 20 in the jaw member 11 and provided with a collar 21 and eye outside the jaw member, the collar limiting the movement of the bolt in one direction, as will be obvious. The other end of the bolt 19 is threaded and I passes through the jaw-member 1,2 and is provided with a nut 22 outside the jaw member, as shown. By this arrangement the jaw members may be firmly clamped upon the shoe 18 by rotating the nut 22, the elongated aperture 20 permitting the necessary play to the bolt, while the flattened portion of the bolt prevents its rotation.

The nut 22 is provided with ratchet-teeth 23, with which a spring-pawl 24:, attached to the adjacent jaw member, yieldably engages, so that the grip of the bolt will be maintained against all jarring or concussion to which the parts may be subjected. By this simple means when the holder is once set upon the shoe it will retain its grip, as the nut cannot work bacliwardly or become loosened while the vehicle is in use. This is an important feature of the invention and adds materially to the value and efficiency of the device. By this simple means the brake-shoe will be securely connected to the beam in position effectually to operate upon the wheel, while at the same time it can be very quickly renewed when wornor broken. By this arrangement also a strong leverage force is constantly applied equally to both sides of the shoe by employing oneclamp-bolt only, thus greatly simplifying and improving the construction.

The lever arms or jaws will generally be of malleable iron or steel, while the shoe will preferably be of wood or other semiyieldable material; but the parts may be of any suitable material.

A wear-plate 25 is embedded in the upper surface of the beam 10 adjacent to the pivot 15, and a similar wear-plate 26 is inserted between the crossed jaw members and the lower side of the plate, as shown in Fig. 2. The wear-plate 26 will preferably be formed with two of its corners 27 turned downward to form spurs adapted to be driven into the wooden beam to assist the holding-bolts 28 in supporting the plate, while the other corners 29 are turned outwardly to form stops to limit the inward movement of the jaw members and '10 also to prevent the displacement of the jaw members in event of the breakage or displacement of the pivot-pin 15. The wear-plates thus protect the wooden beam and prevent undue wear thereto. 5 Having thus fully described my invention,

what I claim is 1. A brake-shoe holder comprising oppositely-operating jaw members crossingeach other exteriorly of the beam and movably connected thereto at their crossing points and adapted to support a brake-shoe at one side of the brake-beam, and a clamp-bolt connectmg the jaw members at the opposite side of the beam and operating to compress them 5 upon said shoe, substantially as described.

2. A brake-shoe holder comprising opposmg jaw members movably connected to a brake-beam and adapted to support a brakeshoe at one side thereof, a threaded clamp- 3 bolt movably connected by one end to one of said aw members at the opposite side of the beam, a nut operatively engaging the threaded portion of said bolt and provided with spaced ratchet-teeth, and a spring-actuated pawl engaging said ratchet-teeth, substantially as described.

3. A brake-shoe holder comprising opposing jaw members having transverse apertures adapted to receive the brake-beam, said jaw 4 members crossing each other upon opposite sides of the beam and pivoted thereto at their crossing points and adapted to support a brake-shoe at one side of the beam, and a clamp-bolt operatively engaging the jaw members at the opposite side of the beam, substantially as described.

4. A brake-shoe holder comprising opposing jaw members having transverse apertures adapted to receive the brake-beam, said jaw members crossing each other upon opposite sides of the beam and formed with reversely disposed recesses and pivoted to the beam at their crossing points and adapted to support a brake-shoe at one side of the beam, and a clamp-boltoperatively engaging the jaw mem- 5 5 bers at the opposite side of the beam, substantially as described.

5. A brake-shoe holder comprising oppositely-operating jaw members crossing each other exteriorly of the beam and movably connected thereto at their crossing points and adapted to support a brake-shoe at one side of the brake-beam, said jaw members having transverse apertures in their free ends with one of said apertures elongated longitudinally 5 of the jaw member, a threaded clamp-boltengaging said apertures and with the portion passing through said elongated aperture flat-. tened to prevent rotation and with a stop-collar exteriorly of the jaw member carrying 7 said elongated aperture, and a nut engaging said threaded end exteriorly of the other jaw member, substantially as described.

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

AMBROSE MICHAEL PENNOCK.

Witnesses:

JAMES R. CLARK, F. R. FARGO-

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