US1578340A - Pliers - Google Patents

Description

March 30,1926.

K. T. MILLER PLI ERs Filed July 3, 1925 a Ng/NIOR. y zw ATTORNEYS;

Patented Mar. 1926.

I *UNI'TEDSTATE N j MILLER, SLFRIVNGFIEIQE MAssAonusErrs. if

This invention relates to improvements in wire working pliers, and is directed more particularly to pliers for removing or strip ping the, insulating covering from; wires, cables, or the like. 1

The principal obj ect of the invention is tion cutting blades and insulation stripping grippers are arranged so that the insulation V is gripped for removal at the time'it is be ing .cut, as distinguished from pliers of the prior art wherein the cable is removed from a set of cutting members and then inserted in other stripping members. 1'

With the above objects in View, I am able to produce. pliers that are eflicient in oper ation and simple in construction and which are therefore economical to manufacture;

Other objects and advantages -'will" appear from the following description of the invention which is illustrated in the form at present preferred by means of thevaccompanying drawings, in which:

Fig. 1 is a front elevational view of a pair of pliers embodying my invention; and

Fig. 2 is'a rear side elevational view of the jaws of the pliers shown in Fig. 1.

Referring to the drawings in detail, 1 and 2 designate plier handles of usual form that are pivotally connected at 3 in the well-known manner having jaws 4 and 5 carried at the upper ends thereof. Plates or blades 6 and 7 are secured to the jaws 4: and 5 respectively by rivets or the like and are preferably arranged for a shearing action as the handles aremoved or pressed together. Notches 8 and 9 are provided on the inner edges of the plates that are sharpened as indicated and adapted for cutting through the insulation of a cable .or wire.

The upper notch 8 in each jaw is shown in the form of a V'while the notch 9 is semis circular, but it will be obvious that they may be of any form desired depending upon the use for which the pliers are to be employed.

, The sides of the plates below the notch 9 are preferably disposed at an angle relative to one another and are provided with a repeater filed July-3,

MrLLnn, Y

PLIEBS.

192 5. Serial'No. 41,419.

beveledcutting edge to form a-' cutting-ofi shean An adjustingscrew 10 in threaded engagement with one of the handles .isldi's:

posed so "that its end may abut the.

other handle and functions as a stop.-to

limit, the relative closing movement of the-1 jaws. A lock-n'utll on the screwis'prm I vided for lockingthe screw in an adjusted position." Gripping.:membcrs'12' ezitendinga transversely of each of thejaws are pro-I vided that. preferably have a semicircular face that is"provided with teeth 'or serrations as shown. These grippmgc members I the plOVlSlOIl of pliers wherein the .1nsula ering of. acable while the: covering oriin:

sulation isbeing cut bythe c-uttin'gedges of the notch. The projection's formed'byi the roughened surface of the gripping mem bers are adapted-to pierce the outer covering of thecable ,to prevent a relative turnmg or endwise movement of the cable with rious forms mayi, be, employed that are adapted'to embrace and securely 'grip the respect thereto. Gripping members of Va cable for the action of'the cutting notches.

i In operation, the, adjusting screw is adusted soxthatth'ejaws and consequently the cutting'blades'are prevented from outtlng through theiwire of a cable while of course allowing the cutters to cut through the covering. A covered wire or cable is inserted between the jaws and between the gripping members thereofand the handles pressed toblades enter and cut through the'covering' while at the same time the covering is clamped between the grippers to prevent a relative movement of the covering with respect to the jaws.- hen the handles have sov I nether. By this action, the notchesof the been moved to their closed position, the pliers are rotated silghtly with respect to the cable so that the covering, being gripped by the jaws, is twisted or turned with respect to the wire. This turning action loosens the covering from the wire and insures a clean continuous out about the whole circumference ofthe cable. Finally, the cable is pulled away from the pliers and the portion of the covering behind thebladesand embraced by the grippers will be stripped from the wire. A notch c in a side of one of the jaws is provided and is adapted to scrape and cleanf 110 the end of the wire when the wire is drawn therethrough.

I am aware that many changes may be made in the form of the invention without 1 departing from the scope thereof. I there.- iore prefer to" be limited by the "appended clainislrather than by the foregoing descrip-i tion." V

Claims: 1. Pliers oft-he class described comprising pair of pivoted'handlesand jaws operated th'er'eby, blades having complemental cutting notches carried thereby and arranged to cut onpppositesides of the covering of a cable, means for limiting the closing movement of :Tsa id handles so that the said cutters Will not out through the Wire of said cable; and compleinentalegripping members carried by the jawseat therearof the blades, and in aline mentwith the cutting notches thereof for embracing opposite sides iof the'covering of the cable and':,arranged tolirmlyembrace 20 v the covering for a twisting action thereof: I 2. Pliers ofthe c'lass described comprising a pair of pivoted jalwsand operating handlestheref0re, blades at the side otl said vjaws havingcomplemental butting notches arranged to-acto'n oppositesides of the coverlng' of a: cable, complementalgripping members. carried by the j aws at the rear of the blades in alinement"with the cutting notches thereof, the "sai'd jawseand blades beingarranged-so that asacable is gripped between the gripping members the aWs are limited in the closing movement whereby the blades are prevented fromshearing elf the;

wire of the cable. j j j v a 3. Pliers oftheclass described compr sing apair of pivoted handles and jaws operated thereby, blades carried at the sides of each of the'jaws arranged'for a shearing action and 'providedwith complemental cutting -notches rippmgvmembers 1n the form of abut the other of said handles to limit the 1 closing movement of the jaws sof'that the bladeswill not cut the ire of the cable,

In testimony whereof I have ai'lixed my signature.

" KENNETH T. MILLER.

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