US319123A - William h - Google Patents

Description

(No Model.)

W. H. RATCLIPF.

STIRRUP.

No.`319,123. Patente-d JunerZ, 1885.

UNITED zSTATES Pn'rnnr @ritieni WILLIAM II. RATCLIFF, OIF-AGENCY, MISSOURI.

STlRRUP.

SPECIFICATION forming part of Letters Patent No. 319,123, dated June 2, 1885,

Application filed November 20,1884. (No model To all whom t may concern;

Be it known that I, WILLIAM H. RATCLIFF, a citizen of the United States, residing at Agency, in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Stirrups, and I do hereby declare the following to be a full, clear,

and exact description of the invention, such4 as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings and letters of reference marked thereon, which form a part of this specification.

Like letters refer to similar parts throughout the several views.

This invention relates to stirrups for sad dies; and the novelty consists inthe construction, arrangement, and adaptation of parts, as will be inore fully hereinafter set forth, and specically pointed out in the claim. In devices of this kind it is desirable that the strapblock shall have liberty to revolve independent of its shaft, for the reason that the revolutions of the metal shaft in the side bars of the stirrup soon wears its bearings and begets looseness and rattling. It is necessary that the roller should revolve in order that the suspended stirrup may with little friction accommodate itself to the foot of the rider and change from one position to another. W'hen the stirrup-roller is rigid, the strap engages and lets it free in such quick succession as to produce a jerking action, both disagreeable to the rider and productive of a creaking noise. This creaking noise always accompanies the rubbing of a leather surface on another. If the roller revolves, it can be made practically noiseless, and produces little wear on the strap. I provide a stirrup in which the shaft of the strap-block is held rigid with the body of the stirrup by rivet-plates, which lie flat upon the outer inclined faces of the stirrup. I provide that the roller-block shall revolve freely upon said shaft and have vertical end bearings, and I provide that both the rivetplates of the shaft and the rollers shall have a metal bearing upon a single plate of metal, which serves as an ornamental mounting for the whole.

The invention is illustrated in the accompanying drawings, in which Figure l isaperspective, and Fig. 2 a vertical section.

Referring to the drawings, A designates the body-frame, of wood, bent into such forni as to present inclined outer faces, a, and vertical inner faces, a. These faces, when covered according to this invention, present peculiar features of advantage. A mounting, C, of sheet-brass or other metal which will receive a high polish, covers the outer face of the frame, and is bont inward over the top in both directions, is laid flat against the vertical faces c', and, passinga short distance down the inside of the frame-legs, is secured near each end by bolts or rivets c c, which pass through two thicknesses of the mounting C at that point. A singlerivet, b', secures it at the center of the step, as shown. The mounting is slightly wider than the body, and has its f upper corners rounded off to present a neat appearance.

The parts thus far described comprise the body of the stirrup. The roller or strap block I3 has a longitudinal central bore, ZJ, which loosely receives the shaft D. The shaft, being cut to the proper length, is passed through proper orices in the upper portions of the arms, and rivet-plate d having been placed on the end it is riveted down,with the rivet-plate lying iiat upon the oblique outer face of the mounting-i. e., at a considerable angle to the plane of the shaft. Care is taken to allow the roller B liberty to revolve freely, and the uprightfaces of the mounting over the surfaces a give a durable bearing to the roller as against end motion. The shaft, by rcason of its rigid rivet-plates bearing squarely against the oblique outer Tacos, is held' rigid with the body, and will last for years without loosening. The large area of the roller upon its shaft will prevent any considerable wear in that direction, while the bearings of its ends give a very slight friction upon the niountings.

I deem it important that, the entire metal mounting is made from a single piece of metal, and that this mounting does by its adapta tion serve to hold the shaft from revolution in one direction and allow revolution to the roller in the other.

I am aware of Patents No. 137,668, of 1873,

ICO

in which the strap-block does not revolve; of Reissued Patent No. 9,244, of 1880, in which no provision is made to prevent the shaft from turning, and of Patent No. 193,467, of 1877, in which, if the nut is tightened, neither will revolve, and if loosened both will. In none of these patents does a single metal blank serve as a mounting and provide locking means for the shaft upon the one hand, and a smooth bearing-face for a revolving strap-block upon the other.

I am aware of Patent No. 209,117, of 1878, in which both inclined sides of the stirrup are cut away to give a square bearing to the bolthead and nut. In practice, with such construction the bolt is liable to turn with the roll. prevent the bolt from turning.

ture lies the gist ofl the invention.

In my device I utilize this incline to In this fea- What I claim as new is- The stirrup described, consisting of the body A, having inclined faces a and plane;

vertical faces a', the mounting B C, made of a single piece of metal, and secured to said body as shown, the shaft D, having rivet-plates igid with the shaft, and having flat bearings upon the inclined faces of the mounting, and the strap-block B, having eind bearings against the mounting, whereby the strap-block is allowed to revolve and the shaft is held rigid, all combined and operating as and for the purposes set forth.

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

XVILLIAM H. RATCLIFF. Witnesses:

' VILLIAM M. BOONE,

WILLIAM R. CoRTNE-R.

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