US393410A - Wire-stretcher - Google Patents

Description

(No Model.)

G. W. WILLIAMS.

WIRE STRETGHER.

Patehted Nov. 27,1888.

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GRIFFITH IV. WILLIAMS, OF GREENSBURG, INDIANA.

WlRE-STRETCHER.

SPECIFICATION forming part of Letters Patent No. 393,410, dated November 27, 1888.

Application filed August 2, 1888. Serial No. 281,779. (No model.)

To aZZ whom it may concern.-

Be it known that I, GRIFFITH W. WIL- LIAMS, a citizen of the United States, residing at Greensburg, in the county of Decatur and State of Indiana, have invented new and useful Improvements in Wire-Stretchers, of which the following is a specification.

The invention relates to improvements in wire-stretchers; and it consists in the construction and novel combination of parts here inafter described, illustrated in the drawings, and pointed out in the appended claim.

Figure 1 of the drawings represents a perspective view of a wire-stretching device embodying the invention. Fig. 2 represents a vertical section thereof through the pawl-recess.

Referring to the drawings by letter, A designates the bearingplate of the stretcher, having the concave edge a, and provided on each side of said edge with the outstanding lateral ears B, in the outer edges of which are the semicircular bearing-notches b.

I) b are screw-openings through which the bearing-plate may be attached to a suitable support-ms, for instance, a post. Adjoining the inner side of the said ears is the flanged recess D, the floor of which inclines downward or inward from the concave edge a. The said recess is adapted to receive the foot 0 of the removable dog or pawl E, the beveled engaging-point e of which faces the concave edge a of the bearingplate, and the arm 6 of which inclines downward and away from said edge and tends to throw the point ofthe pawl upward.

F is the roller, provided with a diametrical opening, I, for the attachment of the wire to be stretched, and with the journalsf, which rest in the bearing-notches b. G is a ratchet wheel on said roller, provided with teeth g,

the shoulders of which face the beveled point e of the pawl, and H is a squared portion of the roller on the outer side of the said wheel and bearing 1) on the same side and adapted to enter the eye of a crank-handle. The wire is attached to the roller through the diametrical opening therein and by means of the crank-handle wound thereupon and stretched. The wire in leaving or winding upon the roller passes through the concavity of the edge a, so that the strain is always toward the bottom ofthe bearings b,and will consequently hold the journalsf therein. The point of the pawl or dog engages the teeth of the ratchetwheel at the lower edge of thelatter. Consequently in whatever direction the wire may be pulled the said point will not act as a fulcrum to aid in lifting the journals ofthe roller from the bearingnotches b. The arm 6 of the pawl tends to cause the point of the latter to engage the ratchet-wheel by gravity,and may be pressed inward to release the pawl when it is necessary to loosen the wire or relieve the strain thereon.

Having described my invention, I claim- The improved wire-stretcher comprising the bearing plate having the concavity a, the notched ears B, and the flanged recess D, the pawl E, having the foot 0, resting in said flanged recess, the beveled point e, and the downwardly inclined arm 0", the roller F, journaled in the notched ears B, and the ratchetwheel on the roller engaged by the point c of the pawl, as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed mysignatu re in pres ence of two witnesses.

GRIFFITH \V. JVILLIAMS.

Witnesses:

ORvILLE THOMSON, WILLIAM H. GODDARD.

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