US1113986A - Wire-stripper. - Google Patents

Description

T. L. GREGSON & J. I. PAYETT.

WIRE STRIPPER. APPLIOATIQN FILED MAY 26, 1913.

1, 1 1 3,986. Patented oen. zo, 1914.

THE NORRIS FETE'RS C0.. PHOTDLHHO.. WASHINGTON. D. C.

UNITED sTATns PATENT-OFFICE.

THOMAS L. ennesoiv AND JAMES I. PAYETTE, or CHICAGO, rnnlvors.4

v Wire-Strippers, of which thefollowing is a specification. j j y j Our invention relates to improvements 1n wire strippers such as are adapted to removev the insulated covering from wires for use 1n connection with electrical devices and kthe like. It is illustrated diagrammatically in two forms in the accompanying drawing, wherein Figure 1 is a plan view; Fig. 2 is a side elevation; FigB is an end elevation;v Fig.4

a section along the line 4 4 of,` Fig. 3;`

Fig. 5 a Section along the line 5,-5 ofFig. 3; Fig. 6 is a detail plan view of a modified form; Fig. 7 is a side elevation of the modi-` fied form shown in Fig. 6 Awith parts in slightly different arrangement.

Like parts are indicated by the same letter in all the figures.

The plier members A, A1 are pivoted at A2 and terminate each in cross blocks or cutter blocks B, B1 at right `angles to the plane of the handle. B, `B1 are provided with grooves or slots B2, BS of such size to engage a s0- called duplex conductor as shown diagrammatically at B4. Projecting inwardly from the bottom of each of these grooves are the knives B5, B6 which knives are adapted t0 split or out on opposed sides the outer wrapping B"I ofthis duplex conductor. C, C1 are smaller slots or grooves provided with similar knives C2, C3 such as may be used` y for smaller duplex conductors or for stripping the wrapping fromaJ single conductor.

C4, C5 are knife edges at right angles to the cutting knives B5, B6, C2, C3 adapted to assist in stripping or peeling of the wrapping or insulation after it has beeneut by the knives in the bottoms of the grooves or slots. It will be noted that these cutting or split- Specification of Letters Patent.

These cutter blocks v ;4 Patented oct. 2o, 1914.

`Applimioiimeel May 26, 1913. serial1\rt.7e9,s31.v j

. lting knives are arranged in planes parallel to the plane of the pliershandles so that the operator can by drawing the pliers toward him, meanwhile holding firmly onto the ends ofthe wires, cut. the insulationso as to leave the conductor free to be stripped and` subsequently strip it by use of the stripping or scraping knives.

The use of the device is, of course, obvious j as illustrated in the form shown in Fig. 2.

In fthe modified form shown in Figs. `6 and 7 the operation` is exactlythe"sa1ne, except that I havehere showii'these wire stripping blocks `and knives as applied to the usual type of parallel jaw pliers as an attachment.

The plier handles D, D1 are pivoted at D2 and carry the' jaws D3, D".The-stripper blocks D5, D.6 are pivoted to the jaws D3, D* by means of pivots D7, which pivots are perpendicular tothe plier pivot D2.

It'will he notedthat, as shownin Fig. 6,

when the stripper blocks are out of `operation, they lie down upon the jaws D3, D4 out of the way. When they7 are to be used, they are swung up t0 the position shown in Fig. 7, the end of the block abutting against the jaw D3 or D4 as the case may be, thus being limited against. further rotation and oompelled to project outwardly at right angles eratein exactly the same manner as theydo in the type shown in Figs. 1 and f2.`

It will be evident that while we have lto the jaw. When in this position theyopshown in our drawings an operativedevice,

still many changes might be `made in the size, shapeand arrangement of parts without'departing materially from the spirit of 'drawings be regarded as in a sense diagrammatic. f

e 1.1'l`he combinationvwith a pair of pliers of 'wire stripper `blocks pivoted on said pliers, j wire stripping means mounted] in said` blocks, said blocks being free to rotate through van angle 015,90 degrees away from the pliers and' means for limiting said rotation-` our invention. Wewish, therefore, that our i 'f Q l s, 1,113,986

The combination with a pair of pliers l Signed at Chicago, county of Cook and Y of Wire stripper' blocks pivoted on said State of Illinois, this 17th day of Moy, 1913. l0

. pliers Wire strippino` means mounted in said blookssaid blocksD being free to rotate through an angle of 90 degrees away from `the pliers and ineens orlimiting said rotn- Witnesses: tion, said blocksbeing apertured and-pro- LAUREL M. DOREMUS7 vided with opposed knives in said apertures. MINNIE SUNDFAR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C.

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