US1156597A - Wire-stretcher. - Google Patents

Description

AVC. HANSON.`

WIRE STRETCHER.

APPLICATION F11ED1uNE11,|914.

1,155,597. Patented 06f. 12, 1915.

v ANDERS connai) Hanson, or een OAK, iowa.

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Spreceation of Lettersfatent. y .Patented @m5, 12, 1915,

Application lerd June 17, 1914. Serial No. 845,363.

To all/whom z'fmag/ concern.' j

Be it. known that I, ANDERS CONRAD HAN'- soN, a citizen of Sweden, residing at Red Oak, in the county of Montgomery and State of Iowa, haveinvented certain new and useful Improvements in Wire-Stretchers, of which the following is a specification. j

My invention relatesto improvements in tools for stretching wire and more particulai-ly to a tool adaptedprimarily for stretching screen wire to enable the same to be properly fitted into the screen frame.

With the foregoing and other objects in View the invention consists in the combination and arrangement of parts to be here inafter fully described in the following specification, pointed out inthe claims and illustrated in the accompanying drawing which forms a part of said specification and in which* Figure 1 is a side elevation of my improved wire stretcher in use. Fig. 2 is ar top plan of the same taken on line 2-2 of Fig. 1. F ig. 3 is a cross section through the handle and is taken on line 3-3 of Fig. 1. Fig. 4L is a cross section taken on line 4 4 of Fig. 1. Fig. 5 is a section taken on line 5-5 of Fig. 1.

Like reference characters indicate corresponding parts throughout the several views.

My tocl comprises the upper and lower levers 1 and 2 which are pivoted together at 3 and formed forward of the pivot with the gripping jaws 1i, 5. A spring 6 secured to lever 2 tends to force the jaws apart. To the lever 1 the handle. is secured which comprises the casing 7 which is fixed with relation to said lever, and the tube 8 disposed upon the casing and encompassing and sliding upon the same and which tube is provided with the set' screw 9 by means of which it may be releasably locked in engagement with said casing.

To the casing 7, near its lower end, the integral ears 10 of a two piece lever 11.are pivoted as at 12 and said lever pivotally carries a gripping block 13 between its lower extremities as at 14, which block is formed with teeth or serrations as at 15 and, moreover', is engaged by a pin 16 projected through the arcuate slot 17 formed in one portion of the two-piece lever 11, said pin, further, being engaged by a spring 18 that is secured to a pin 19 secured upon the slotted lever portion 11, the purpose of the'spring and'pins just ydescribed being to tilt the gripping block forward upon its pivot or into engagement with the work. The lever 11, rearwardly of the ears 10, 1s formed with a projection 19 disposed partly beneath the casing 7 for engagement with a thumb screw 2O secured by a strap 21 to that casing, and a spring 22 also se cured to the casing 7 at its free termination frictionally engages the lever 11.

@perationz Q3 designates the frame and 24 the screen wire to be fitted thereto. The wire 211 is fastened to the opposite side rk(not shown) of the frame 23 and the adjacent end of the screen wire is grasped between the jaws fi, 5' of the tool. The gripping block 13 is placed in engagement with the frame and the thumb screw 20 screwed down'until said block obtains a firm purchase upon the frame. By pressing down upon the tube portion 8 of the handle, thek ears 10 of'lever 11 serve as a fulcrum for the casing 7 and the jaws 4i, 5 stretch the wire 24 with relation to the screen 23. Greater'leverage may be obtained by extending the tube 8 upon the casing 7 What is claimed is Y 1. In a wire stretcher, a pair of levers pivoted together and terminating in jaws, a telescoping handle carried by one of said levers, a fulcrum for said handle, a grip-V ping 'block pivotally carried by said fulcrum, flexible means connecting said ful crum and gripping block whereby the lat* ter is retained in operativey position and means carried by said handle for engagement with said fulcrum whereby the same may be caused to drive said gripping block into the work.

Q. In a wire stretcher, a pair of levers pivoted together and terminating in jaws, a telescoping handle carried by one of said levers, a slotted fulcrum for said handle, a gripping block terminally carried by said fulcrum, a spring-pressed pin disposed in the slotted portion of said fulcrum and in engagement with said gripping block and means carried by said handle for engagement with said fulcrum whereby the same may be made to drive said gripping block into the work.

3. In a wire stretcher, a pair of levers pivoted together and terminating in jaws, a telescoping handle carried by one of said levers, a fulcrum for' said handle, a gripping block DVotallv carried by said fuli-ST/enr anion,

Y 2 Y l ,i 1,156,597'` Crum,-y In'ea-ns connecting seid fulcrumV and Y testimonythat I ciziimY the-'foregoing gripping block for retaining the latter in as my own I have hereto aHXed my signal0 opergitiveposition, a` springcarried bysaid ture in the presence 'of two subscribing Withandle frictionally engaging said fulcrum nesses.

and a, thumb screw carried by said handle Y ANDERS CONRAD HANSON. for engagement With said fulcium whereby 1 Witnesses: Y Y the latter may be caused to drive said grip` v :AUGUST VENELL,

ping block into the Work. v SIGURD kPETERSS01\T.

Copiesnof this patent may be'obtained for five cents Veach, by laddressing the Commissioner -of Patents,V f 'Washington,D.G. f

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