US398596A

US398596A - Wire-stretcher

Info

Publication number: US398596A
Authority: US
Publication date: 1889-02-26
Anticipated expiration: 1906-02-26

Description

2 Sheets-Sheet 1.

(No Model.)

J. L. ENYEART.

WIRE STRETGHER.

N0. 398,596. Patented Feb. 26, 1889.

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2 Sheets-Sheet 2.

(No Model.)

J. L. ENYEART.

WIRE STRETGHER.

Patented Feb. 26', 1889.

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irnn ra'rns PATENT OFFICE.

JOHN LLOYD ICNYEART, OF SHIRLEYSBURG, PENNSYLVANIA.

WiRE-STRETCH ER.

SPECIFICATION forming part of Letters Patent No. 398,596, dated February 26, 1889. Application filed September 26, 1888- $erial No. 286,458. N0 model.)

To all whom it may concern.-

Be it known that I, JOHN LLO Y1) ltN YEART,

The clamp ll consists of the pawl or cam H,

1 secured to the end of the chain, the body N,

a citizen of the United States, residing at Shirf leysburg, in the county of Huntingdon and State of Pennsylvania, have invented a new and useful Improvement in 'Wirestretchers, of which the following is a specification.

My invention is an improvement in wirestrctchers; and it consists in certain novel teaturcs hereinafter described and claimed.

In the accompanying drawings, llignre l is a perspective view of my improved wirestretcher, showing it in position on a fencepost. Fig. 2 is a plan viewot' the stretcherdetached from the post. Fig. 3 is a vertical section on the line ,r of Fi 2.

Referring to the drawings by leater, A designates an L-shaped casting, having its shorter arm, B, curved slightlyinward and rearward, so as to form the point C at its extremity, as clearly shown in Fig. 2. 0n the upper side of pivoted to the end of the cam, and thekeeperplate 0, pivoted to the opposite side of the cam and adapted to pass beyond the edge of the body N, to prevent the wire from slipping the arm B, I form the lugs or cars D I), in 1 which the driving-shaft E is journaled. The driving-shaft E is provided with a crank-handle, F, at one end, and between the lugs D D,

I mount upon the shaft E the sprocket-wheel between said body and the cam. V

A securing-chain, P, is permanently attached to the end of the longer arm of the I casting A,and is adapted to be passedaround the post and engage a hook, Q, on the end of the shorter arm of the casting, thereby securing the same to the Fence-post, as will be readily understood.

In practice the casting A is secured to the fence-post in the manner just described by passing the chain 1 around the fence-post, the clamp L caused to engage the end of the wire, and the chain K is passed under the sprocketwhcel G, after which the drivingshatt is rotated, thereby drawing the clamp L and the wire held thereby toward the post, consequently stretching the wire, as will be readily understood. After the wire has been stretched to the desired degree the pawl J is caused to engage the ratchet-wheel, so as to prevent backward rotation of the driving shaft and consequent slackening of the wire.

It will be understood that the tension of the venience in manufacture, as will be readily 5 understood. On the under side of the arm 1-3, I secure an eye, I, in which is hinged apawl, J, as shown. This pawlconsistsof a wire bail or 100p having its ends secured in the eye,

thence extending forward under the casting,

and then upward past the same, as shown, the upper end of the pawl engaging the teeth of the ratchet-wheel. II, to prevent retrograde wire is excited against the end of the pawl through the ratchet-wheel, and the pawl and wheel thereby caused to bind against each other, so that the pawl willbe prevented from falling and the wheel prevented from rotating. The pawl can be constructed so as to antomatically engage the ratchet-wheel at all movement of the driving-shaft. The sprocketwheel is engaged by a sprocket-chain, K, as

' and efficient wire-stretcher, by means of which shown, to the end of which is secured the wire-clamp L. The sprocket-w11eel is of such a diameter that the lowest point of its circumference is very near the upper side of the cast- I provided with the point C, the main portion of the chain passes downward between the post and the shorter arm of the casting, shown in Fig. 1.

times by giving it a spring temper, and the same result will be accomplished by inverting the device.

It will be seen that I provide a very simple the wire can be quickly and rapidlystretched to the desired degree. By having the shorter arm of the casting A curved, as shown, and

said arm is held. away from the t'cncepost, so as to allow ample room for the rotation of the sprocket and ratchet wheels. The point C also is caused to embed itself in the side of the post by drawing the securing chain tightly around the post, so that the casting bears against the sideot thepost, and thereby l prevents wabblin of the device, as will be readily understood. The clamp receives the fence-wi re between the body N and the cam M, and when the driving-shaft is rotated thcpull exerted thereby on the chain K draws the cam firmly against the wire, thereby clamping it 1 The against the body, so that it will not slip. keeper-plate is extended past the edge of the body, so as to prevent the wire from slipping laterally therefrom, as will be readily understood upon reference to the drawings.

The longer arm of the casting is provided with a clamp, R, similarin construction to the clamp l), for use in splicing broken wires or 1 connecting the ends of sections of the wire.

The manner of using the device in splicing will be readily understood upon reference to Fig. 2. The end of one section of the wire is secured in the clamp R, and the end of the other section is secured in the clamp L. The spur-wheel is then rotated, as will be understood, to draw the ends of the two sections of the wire together, and the meeting ends twisted around each other, completing the splice.

Having ti us described my invention, what I claim, and desire to seeu re by Letters Patent, 1S

I 1. The combination of the casting A, the drivin g-sha't't mounted thereon havinga ratchet-wheel, the eye secured to the under side of 1 the casting, and a pawl secured in said eye and extending around the casting and engagl ing the teeth of the ratchctwheel, as set forth.

2. The improved wire-stretcher comprising i the L-shaped casting A, having the lugs D 1) on the upper side of its shorter arm and the hook Q at the end of said arm, the chain permanently attached to the end of the longer arm of the casting and adapted to engage the end of the hook Q, the driving-shaft journaled in the ends of the lugs D D, the sprocket and ratchet wheels mounted on the said shaft between said lugs, the chain passing beneath and engaging the sprocket-wheel, the clamp at the end of the chain, and the pawl secured to the under side of the casting anden gaging the teeth of the ratchet-wheel, substantially as specified.

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

JOHN LLOYD ENYEART.

\Vitnesses:

W. T. BELL, J. B. DAVIS.