US1120575A - Wire nipper and twister. - Google Patents

Description

J. T. WBRTZ. WIRE NIPPER AND TWISTER. APPLICATION FILED rum. 1914 1,120,575. Patented Dec. s, 1914u i sira'rns ra "Winn Nieren AND frwisrnn'.

aire-,575.

Specification of Letters Patent.

Patented Dee. 8;, 1915A.

Application ledlsebriiary 5, 1,93.. Serial No. 816,727.-

y To all 'whom it may concern:

- provide Be it known that I, JoHN T. VWniirz, a citizen of the United States, and a resident of the city of New York, borough of Brookflvii,v inthe county.V of Kings and State of ew York, have invented al new and' lmroved'W'ire Nippel` and Twister, of which the following is a full, clear, and'exact deseription.

This invention relates to metal working tools and has particular reference' to means i for. gripping and twistingl wires such,i for instance, as' are used for fastening together reinforcement means r concrete structures,

although the use'of' the .device is not to be regardedas being limited to the means as' herein stated. y v

Among the particular Aobjects of the inventionis to provide a nipper andl twister for securing wires which is'of a more easily controlled nature with respect to the connection to and'disconnectionfrom the wire, and also with respect tothe erful rotation of the device vfor the' purpose of Atwisting the wire, than other devices now commonly used for. these purposes.

A further object vof thefinvention is to a wirel nipper and twister-adapted to readily adapt itself to various gages or thicknesses of wires without requiring any of the parts.

scribed and claimed and illustrated in the drawings forming a part 'of this specifica# ytion in which like characters of reference indicate corresponding parts in all the views, and in whichside elevation ot tive sizes and proportions, as

Figure 1 is a perspective view showing my improvement in operation; Fig. 2 isa the device in the position the several parts nected to the wire to be twisted: Fig. 3 is a similar view showing the handle brought into operating position and the 'jaws gripped elevation of the stationary jaw together lwith the huh in the position shown in 3.

lhe severall parts of the device may be made of any suitable materials, and the relageneral design of the mechanism, may be varied to a considerable eiitent` without departing roin the spirit ci the invention lieneiii-dter more fully set forth and specically claimed.

"slight movement for ping a wire or thelike indicatedv at W, said rapid and pow.A

with ahead 1la 'anda shank 11b.

' of the otherjaw assume when being con-v well as the `lerred form of the invention, .l show at 10.

and -11 a pair of relatively movable jaws pivoted togetherat 12 for a comparatively the purpr-fe ofy grip- 'ire being shown in the lform of afloop passing around a plurality of crossed r'emfl'celment rods R. Each of the jaws is substantially T-sliaped, having a head and a shank on opposite sides of lhe pivot.The jaw 10 (which may ,be regarded as stationary with 11) is provided, thererelation to the jaw and a shank 10b. It,

fore', with a head 1()a also includes a. pair of spaced lugs 13 adjacent the pivot-12 and a pairoii ears'l/i at the end of the shank These ears are spaced from each other in parallel'planes and receive substantially rectangular'lug 15 'of a handle hub 16. A pivot 17 passes through the ears 14 and a holeadjacent one corner of the lug 15. 'The other or vmovable jaw 11 is provided of the jaw 11 extends between the lugs 13 die. The shank 11b 'is strong andstii enough to insurethe desired grip upon the wire, butby making it slightly flexible the -tool is'adaptable for wires of different age without requiring any adjustment of di The pivot 17 passing close to the lower rear corner vides shoulder 15 adapted to upon the extreme end of the shank 11b of the movable jaw .when the handle is swung through an angle of substantially 90 degrees from the position shown in Fig. 2 to that 'shown in the other figures. The pivot, however, being close to the lower edge oi the lug, the cani elli-fot is not materially reduced while the handle is moving finally into the operating position oil Fig. i3. The face4 of the shank 11b, however. acting upon the dat Allle 18' e device. through vthe lug 15 thereof proact as'a cam opposite the head. 4

between them a and constitutes the means of connection with the pivot 12 around4 purpose of twisting the Wires. Asa convenient and satisfactory form of handle I show a sort of brace 19 having threaded engage- 4 nient with the hub 16 as shown at 2Q.'

The inner or adjacent faces of the heads' a and 11a of the jaws' may' be formed-in any suitable manner for el'ective gripping ofthe wire, and I prefer to 4io'rmeach of the faces with a 'pair of facets 21 and` QQeach pair 'of facets meeting each other ina :fiat or obtuse angle and thereby' thegrip on the wire is increased. The heads. furthermore, as seen from the front or rear, arepr'efer-4 ably drawn in'ars of 'circles having their center within the Vs'ha'nksand thereby the operation of the tool is made more satisfac- "tor'y than if the Tfheads were straight* The' shank 10b of the stationary jaw, .together with its ears 1 4, is sufiiciently strong and 'stiff to withstand the necessary torsional Having thus described my invention, I claim as new and 'desire to secure by Letters 1. In a device of the character set forth,

work ready for applica-- the combination of a pair of Ishaped gripjaw forthe purpose of gripping the work.

Q ;In a 'device of the character set forth, the-combinatinof a pair of jaws, eachv of substantiallyT-shape and including ahead and a'shank, a pivot connecting the jaws together for'l slight relative movement, said pivotbeingfclose to and substantially parallel to the heads, to the end of the 'shank 'ofonejaw its head, thecam' pivot being pivot v'for the jaws, said cam with the free end of the opposite jaw, and aj handle connected to saidcam member to cause its movementto effect opposite In testimony whereof I have signed my name to this specification in thepresence of two slibscribing witnesses.

l JOHN T; wERTz. Witnesses Gno. L. Barman, PHrLIP D. RoLLHAUa a v.cam member connected Y i the gripping action .of the device Vand rotation 'of the- 'jaws after gripping the' work.

'an axissubstantially parallel to move the hub'v through an angle'aro'und its pivot to 'cause said cam member to act vuponythe' opposite parallel to the .coperating

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