US1313339A - Planoaiiaph co - Google Patents

Description

F. W. SCHUMACHER.

WIRE STRETCHER.

APPLICATIQN r1150 APR. 10. 1919.

Patentd Aug. 19, 1919.

WITNESSES I INVENTOR.

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rm: COLUMBIA PLANOGRAPH cu" WASHINGTON. D. c

FRANK w. sonuiuacnnn, or SHAWANO, Wisconsin.

WIRE- STRETCHER.

Specification of Letters Patent. Patented Aug, 19, 1919,

Application filed April 10, 1919. Serial No. 288,960.

To all whom it may concern:

Be it known that I, FRANK W. SCHU- MAC/HER, a citizen of the United States, residing at Shawano, in the county of Sha- Wano and. State of l/Visconsimhaveinvented certain new and useful Improvements in W ire-Stretchers, of which the following is a specification. I

, This invention relates "to; pushing and pulling implements, and more especially to stretchers operating on the step. by step principle; and one object of the same is to produce an improved fence-wire stretcher which is capable of use between posts Within the run of the fence, or beyond the endmost post when the operator reaches the-end of said run.

'Another object-is to produce a structure which grips thewire at two points, one on either side of the post, so that the wire can be stapled to the post after it is stretched.

Another object is to provide a detachable shoe which is not applied when stretching is done between posts.

Other objects will appear in the following specification and claims.

In the drawings Figure 1 is a plan view of this wire stretcher with its parts assembled as when it is attached to the end'post, and

Fig. 2 is a side elevation thereof.

Fig. 3 is an enlarged plan View of the movable slide and pawls.

Inthe drawings the numeral 1 designates the ordinary bar having staggered notches 2 in its sides and herein shown as provided at one end with a hook 2 which may be at tached to a post and a chain 3 with a grip 3 to be attached to-the wire when the wire is to be stretched within the run of the fence. The other end of the bar 1 is proyided with a tongue 4 adapted to be slipped into a socket 5 which carries a shoe 6 pref-' erably having points 7 whereby it may rest against a post P when the wire W is to be stretched at the end of a run of fence, or in other words when the stretcher is to be employed beyond the line of the fence itself. In this case, the chain 3 cannot be attached to the fence post because there is no such post, and it may well be led over along the dotted line of Fig. 2 and attached to the upper end of the post P to hold the notched bar 1 horizontal. The shoe 6 may be attached to thepost P in any suitable manner, as by a clamping chain 8 carried around. the

same and engaged with azh-ook 9 onthe shoe.

It isv to be understood that this shoe and socket are not employed when the stretcher is used within the length of the fence.

. Slidably mounted on then'otched bar is, a hollow member or slide 10 bestseen in Fig. and pivoted at 11 across the same is a lever 12 to which at 13 are pivoted pawlsla whose active ends-are. thrown normally inward by springslo engaging the sides, of the slide as seen in Fig. 1 Therefore, when the lever is recipro'cated, the .pawls cause the slide to: travel to the. left along. the notched bar in a manner which will bev clear.

A pulley 22 is pivoted on the slide 10 as at 21, and the pins 11 andv ,21 connected by asides of the post P, the grip 2-1 being considerably nearer the stretching mechanism than the grip 25. In other words, the lastnamed grip is within the line of the fencing, while the grip 24 is beyond the post P which is here the left postof said line. The chain 23 which connects the grips passes the post from the grip 25 and runs freely around the pulley 22, but it is quite possible to provide means for preventing the rotation of said "pulley when desired. The grip 24 carries a hook 26 and the chain 23 has a large link 27 adjacent the grip 25.

When this stretcher is used within the line of the fence, thehook 2 is attached to a post and the grips 24 and 25 to a wire to be stretched, or the grip 25 can be attached to the wire and the hook 26 on the grip 24 maybe engaged with the large'link 27 onthe grip 2 5. Then by manipulatingthe lever, the slide 10 is caused'to move to the left and the wire is stretched as clearly understood. hen this device is to be used at the end of a stretch of fence, the shoe 6 is brought into use and the socket 5 is slipped over the tongue 4 at the right end of the notched 12 is reciprocated, the pawlscause it to travel to the left along the notchedbar and the pulley 22 strains both stretches of the chain 23. The result is that the grip 25 draws on the main portion of the wire W while the grip 24L draws on that portion of the wire between thetwo grips, whichp'or tion extends alongsidethe post, and. there fore the wire may be stapled thereto before tension on the structure is relaxed. Now a reversal of the operation removes the stretcher and it is possible to reset it at a lower point on the post so as to stretchthe wire WV below; The parts are by preference entirely of metal, and changes in detail may be made as come Within the scope of the invention.

The foregoing description and the drawings have reference to what-may be considered the preferred, or-approved form of my invention. vIt is to be understood that I may make such changes in construction and arrangement and combination of-parts, materials, dimensions, et cetera, as may prove expedient and fall within the scope of the appended claims.

l/Vhat isclaimed as new is:

1. Ina fence wire stretcher, the combination with a" bar, a slide movably moimted thereon, means for causing its progression alongthe bar, and means for attaching said bar to a fence post; of a pulley on the slide, a chain led over said pulley, and grips at opposite ends of said chain for attachment to the fence wire.

2. In a fence wire stretcher, the combination with a bar, a slide movably'mounted thereon, means for causing its progression along thebar, and means at opposite ends'of said bar for sele'ctive'use in attaching it to a fence post; of a pulley mounted on said slide, a chain passing around said pulley and with one stretch adapted to be led past a fence post, and grips at the extremities of said chain for attachment to the fence Wire 1 at two points, as described.

3; In a fence 'wire stretcher, the combina tion with a notchedbar, and means at one end thereof for attaching it to a fixed ob- Copies 01 this patent may be obtained for five cents each, by addressing Washington, D. 0. v

ject; of tubular slide movably mounted on said bar, pins upstanding from the shde, a

lever pivotally mounted on one pin, a pawl carried by one end of the lever and adapted .to engage the notches of the bar, a pulley grip, and a hook on the other grip adapted to be engaged; with said large link, for the purpose set forth.

5. In a fence Wire stretcher, the combination of a bar, a slide movably mounted thereon, means for causing its progresslon along the bar, and means for attaching it to a fence post, of a pulley mounted on said slide, a chain passing around said pulley and with one stretch adapted to be led past a fence post, and grips 'at' the extremities'of said chain for attachment to a fence wire at two points,-as described' 7 a 1 6. In a fence wire stretcher, the combination with a bar, andmeans for attaching it to a fixed object, of a slide movably mounted on said bar, pins upstanding from the slide, of a lever pivotally mounted on one pin, means carried by said lever to engage the bar and move the slide along the bar as the lever is swung, a pulley mounted on the pin, a link connecting the upper ends of said pins, a chain passing around said pulley, and means on the pins for engaging the fence wire.

In testimony whereof I aliix my signature in presence of two witnesses.

FRANK W. SOHUMA OHER.

WVitnesses: v

HERMAN L; HELLER, CHAS. A. GAEDKE.

the Commissioner of Patents.

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