US750417A - Wire-stretcher - Google Patents

Description

No. 750317. PATENTED JAN. 26, 1904.

I. M. WARNER.

WIRE STRETGHER.

APPLIOATION FILED 0013, 1903.

NO MODEL.

W [T/VESSES: [NVENTOR IBM/04M Hlzomey No. 750,417. Patented January 26, 1904.

UNITED STATES PATENT OFFICE.

ISAAC M. WARNER, OF UNION CITY, MICHIGAN, ASSIGNOR TO JOSEPH W. MoCAUSEY, LEO S. PARSONS, ADDISON J. BOYER, AND IVILLIAM ODEN HUGHART, JR, OF GRAND RAPIDS, MICHIGAN.

WlRE-STR ETCHER.

SPECIFIGATIONforming part of Letters Patent No. 750,417, dated. January 26, 1904.

Application filed October 3,1903. Serial No- 175,561. (No model.)

T all whom it y b, laterally bent or hooked, so as to form.

Be it known that I, ISAAC M. WARNER, a when the implement is assembled a guide-slot citizen of the United States, residing at Union for the double rack-bar or ratch D, said rack- City, in the county of Branch and State of bar also passing through a guide-slot formed 5 Michigan, have invented a new and useful by adjacent channels a a" in grip members Wire-Stretcher, of which the following is a A A, the latter slot being in alinement with the specification. slot formed by the hooks 6. These hooks 6 My invention relates to improvements in serve not only as rack-bar, but prevent the wirc-strctchers used in erecting and repairing spreading of the parts B B and accidental dis- 5 5 [o fences and for other purposes, and has for its engagement of the lever E, hereinafter deobject the production of a simple, durable, and scribed, from the lugs on which it is pivoted. powerful implement for exerting tension on On lugs 6" (shown in Fig. 2) on the inner one or more wires simultaneously and for sides of the parts B B is pivoted a lever E, of holding them under suitable tension until sethe form clearly shown in Fig. 1, said lever 60 cured to permanent supports. I attain these passing astride the rack-bar D and carrying objects by the construction shown in the acpawls e a, one located above and the other be companying drawings, in which low the pivot-lugs and each adapted to con- Figure 1 is a perspective view of the entire tact with the teeth (Z of rack-bar D. In orimplement; and Fig. 2 isatop plan view thereder to hold the lower pawl in contact with 5 of, showing parts in section. the teeth on the under side of the rack, it is Like letters refer to like parts in both the extended on the opposite side of its pivot, as

figures. at e, to form a counterweight, or it may have In Fig. 1 AA are separable members, which additional weights attached to the apertured support the other operative parts of the deend 0'. 7

2 5 vice and also serve as means for attaching the At d in the rack-bar D is a suitable aperstretcher to the wires to be stretched, either ture by means of which said rack-bar may be by directly clamping or gripping them upon secured to a stationary support of suflicient a plurality of wires already in place upon strength to resist the stress of the wires. their supporting-posts or bysecuring them to- The operation is as follows: Rack-bar D, .75

3 gether by the bolts (4 a, so as to bring the secured to a stationary support at the end d, grooves a a into position to form apertures and the grip members AAand attached parts for the passage of any desired number of being moved to the opposite end of said rack, Wires, which may then be secured for stretchthe ends of the wires to be stretched are seing by any suitable fastening, as at c, this cured to A A or these grips clamped from 80 fastening forming no part of my invention. opposite sides upon wires already in place and The members or grips A A (shown broken in the lever E oscillated. At each swing of the 5- Fig. 1) may be long enough to carry a second lever in either direction one of the pawls e v tension device at the opposite end, if desired, will serve as a temporary fulcrum, while the for simultaneously stretching a large number other travels along the opposite edge of the 5 4' of wires or a wide web. rack-bar to a new point of contact, the lugs Secured to each of the grip members A A b", the frame B B, and wire-grips A A movby cap-screws C or otherwise are the parts ing therewith in a direction to exert tension B B, preferably of mild steel, said parts beon the wire or wires whether lever E be osing suitably formed at one end, as at 6, to parcillated toward or from the wire-grips. 9

tially embrace the uprights to which they are It will be seen that when the stretching is respectively secured and at the other end, as completed the entire device may be readily dismantled by merely removing the bolts (0 a and removed from the stretched wires even though the latter are secured on either sideof the stretcher, as in removing slack from Wires or netting already erected.

What I claim as new, and desire to secure by Letters Patent, is

1. In a Wire-stretcher, in combination, a rack-bar adapted to be anchored at one end, a laterally-separable wire-grip slidably embracing said rack-bar, and a lever fulcrumed in separable supports on said wire-grip and having pawls pivoted on opposite sides of its fulcrum, said pawls being adapted to alter.- natel y engage with the teeth of said rack-bar.

2. In a wire-stretcher, in combination, a horizontally-arranged bar, means for securing one end thereof to a stationary support, teeth on the opposite edges of said bar, a separable Wire-grip slidably embracing said bar, a lever fulcrumed in supports on said ire-grip, pawls pivoted to said lever above and below said bar, the lower pawlbeing counterweighted to cause it to engage the lower rack-teeth, whereby oscillation of said lever will intermittently move said Wire-grip relatively to said toothed bar.

3. In a wire-stretcher, in combination, a separable Wire-grip, a rack-guide therein, a lever-support attached thereto, a second rackguide on said lever-support, a lever fulcrumed on said lever-support, and connections between said lever and said rack for moving the Wire-grip relatively to said rack.

4. In a Wire-stretcher, in combination, a separable wire-grip,laterally-extending, separable lever-supports mounted on corresponding portions of said grip, alined rack-guides in said Wire-grip and lever-support respectively, a rack-bar with two serrated edges adapted to pass through said guides, a double pawl-lever mounted on said lever-support and adapted to move said rack-bar relatively to said guides and wire-grip.

5. In a wire-stretcher, the combination of separable Wire-grips, a rack-guide therein, lever-supports secured thereto, a rack-guide on said supports, pivot-lugs on said supports between said rack-guides, a bifurcated lever pivoted on said lugs, a rack-bar serrated on both of its edges and adapted to pass through said rack-guides and said bifurcated lever, and gravity-actuated pawls on said lever, adapted to move said rack-bar relatively to said wiregrips.

In witness whereof I have signed my name to this specification in the presence of two Witnesses.

ISAAC M. WARNER.

Witnesses:

GEO. STYLES, CLARA H. PAGE.

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