Патент USA US2133005код для вставки
Oct; 11, 1938. w. WOLLENWEBER 2,133,005 ' ELECTRICIAN’S TOOL Filed’ Jan. 8, 1957 3 I » ' ‘ > , INVENTOR ‘ W112. W0 ll en web er ATTORNEY Patented Oct. 11, 1938 2,133,005 ,UNITEDSTATES‘2,133,005,PATENT oFricE f 'ELEorRroIAN's 'rooL' * - 3 William VWollenyweber, Sacramento, Calif. Application January 8, 1937, ‘Serial no. ‘119,659 7' 10mm. (on. 81—9.5) This invention relates generally to‘ an, elec trician’s tool and in particular relates to, and it is my principal object to provide, an .elec trician’s tool designed‘to facilitate "the removal of the covering and insulation fromrelectric Wire at those points on the wire where connection a width substantially the distance between the sides 5 ofnthe case. Rearward- of‘ thehead, the case isz‘separated by a partition >6,’the tool bar there being of such width as to normally rest between: the partition and one wall 5 of the case. If desired; a short screw driver‘ ‘I may with other wires is to be made. . f ' ' be mounted on and project from the vback end Heretofore, electricians have usually ‘used a of the case. Also if desired, another implement common “jack” knife or‘ otherrhand knife to 10 remove the covering and insulation. Not only such ‘as a knife blade may be mounted in the 10' .case to one side of the toolbar or on the op was this a rather difficult and clumsyoperation, ' posite side of partition 6. A ring 9011 the outer but it required too long to prepare and make the end of the tool bar serves as a means for easy connections between separate wires. To over’ withdrawal of the toolbar from the case. come'these objections to the use of. a." common The head 4 is formed with a passage ,Illex 15 knife, I?have produced the‘ herein described tool. tending from its. inner to the outer edge, said 15 'A furtherobject of my invention-is to provide passage being tapered as shown. The sides of an electrician’s tool, which “mayv be effectively’. the head'lintermediate, the: ends of the passage .used to twist onev wireaboutanother and to make a'tight connection and positive contact 2 O ’ between the wires.’ The tool is alsoprovided with wire stripping and cutting means. 7 A further object ofthe invention is to pro duce a simple and inexpensive devicefand' yet one which will be exceedingly effective for the' 2 purpose for which it is designed. These objects I accomplish by means of. such structure and relative arrangement of parts as ‘will fully ‘appear by a perusal. of the following . speci?cation and. claim. In the drawing similar characters of ‘reference . indicate corresponding parts in the several ' views: - ‘ ' ' Fig. 1 is a side elevation of- the tool tool bar raised from the case. .~ and at “the inner edge‘ of the bar are notched as at H, the edges of the notches being .sharp. The notched portion has another inward and 20 smaller notch I 2 for the purpose hereinafter described." , V A. ‘cutting blade l3, preferably hollow ground, is secured on the lower edge of the ‘tool bar. by a bolt ‘l3. 'the cutting edge projecting be 25 tween the sides of the head and into the pas sage to a termination close to the notch I2 and 'just inwardly'of the bottom of the sharp notches II. The blade is slotted, as at I5, and thus is adjustable, Both sides 5 of - the case are 30 ‘notched, as at l6, toform a cradle for the pure .vpose hereinafter described, said cradle being the 1 so disposed as to match notches II when the , Fig. 2 is an end view of the tool. tool bar‘ is in lowered position. A bumper or ‘stop l1, preferably of‘, rubber, vis disposed in-the 35 ‘Fig. 3 is a fragmentary sectional elevationi case at .thefforward end and serves to limit taken'on line 3-3 of Fig. 2. downward movement 'of the tool bar, the head Fig. 4 is a transverse section taken on, liner 4 striking said'fbumper with the downward or 4--4 of Fig. 1. 40, r Fig. 5 is a transverse- section taken on line 7 ‘ 5-—5 of Fig. 1. V ‘ closing movement of the bar. The forward end of the case is formed with _ 404 a two longitudinally, extending holes 18, one being Fig. 6 is a transverse section taken on line J of a'greater diameter than the other; A trans 6-—6 of Fig. 1. ’ versely . extending, substantially. semi-circular Referring now more particularly to‘the char-w ; groove [9 is‘formed in the vcase end immediately r acters of reference on the redrawing, "my; im ~ below said’ holes. 45 in proved construction tool comprises to the a case caseor of frame an 1|,ordinary similar “jack” knife.‘ A tool bar 2 is pivoted, as'at 3, within the case ‘at one end thereof for swinging . Intermediate the ends of the case, the sides 5 are drilled ‘with transversely alined holes 20, while the tool bar is notched, as at 2] , the notched por tion being sharpened on one side to a cutting edge 5 O V movement in and out of the case. A snap spring - ZZ-and which edge, when the tool bar is. in closed 50 , of the character: commonly used’ in foldingw position, terminates in‘ a plane. a short distance . ' knives is employed in connection with‘ the tool ~ bar 2 and is disposed in the bottom ofthecase. The tool bar is formed at‘itsouter or_ free‘ ' '55 end with a head, indicated generallyat 4, of above ‘the'center of holes 21,], as clearly shown in Fig.5. ‘ ‘ ' ' . > , Adjacent the rear or pivot end of the case, the ,upper edge of sides 5 are notched as at 23, one 9 2,133,005 inside edge 24 being sharpened. The tool’ bar is so cutrthe covering and insulation may be easily formed with a corresponding notch 25 having af stripped from the wire beyond the lines of out. sharpened and cooperating cutting edge 26, To cut a wire, it is placed across the case trans versely in notches 25 and the tool bar lowered, ‘ ' Usi'e ‘ - " 7 causing cooperating cutting edges 24 and 26 fjto mi In use, my il’IHJI‘OVGd tool is employed as fol lows: , sheari'the If desired, wire cutting with aedges clean22cut. or 26 msily 7 be used ‘ To expose a portion of the‘ wire in a length of f insulated wire, in‘ order to make a tapped con as a scraper blade to clean tarnished ‘wire, etc.’ From the foregoing description it will be readily 10 mection, the tool: bar is raised approximately 45°’ seen'that I have produced such a device as sub 10 and the Wire disposed in the cradle 'formed by stantially ful?lls the iibjects of the invention as notches l?pThe ‘tool bar is then lowered or set forth herein. i: v 7 While this ispeci?cation sets forth in detail the snapped down until notches gll engage the wire. (See Figs. 3 and 6.) The entire tool is then present and preferred construction of the device, practice such deviations from such detail 15 15 rotated about the wire &or 4 times in a clockwise a still direction. With, such operation, ‘the notches I! ?rst scare the insulation and covering, and their the blade l3 cuts away. the covering and insulae tion and the uncovered portion of the wire then Y20 engages in small notch l2 and‘thus cannot be nicked for out. The covering and insulation cut away as shavings, escapes through tapered open ing l0. vIfdesired, duai blades (oneon each side of the opening}, may be'used rather than'a single 25 blade as shown. _ g 1 To connect another wire A to such exposed por tionoi‘ wire B, the bare end of the other wire is placed in one of holes I 8 (whichever the cor rect diameter); and the wire B placedein groove 30 I 9 and the tool passed about vgire B causing wire A to be woundrtightly about vgire B. The initial position ‘of such wires is shown in dotted lines inFig. 3. ' i; :3 . W i To strip the covering from the end of a wire, appended claim. ' ; 1 Having thus described my invention, what I claim as new and useful and desire to secure by 20 Letters Patent is: ' - ' An electrieian’s tool comprising a case having spaced sidesifa tool bar pivoted in the case at one endiifor movement in and out of thesamegthe upper edges of the case adjacent the oppositei‘end 25 having matching notches forming a cradle for?the reception of a covered and insulateo'gwire, a cut ting head mounted on the euter end of the bar, said’ head having a passage therethrough from the'edge adjacent the cradle to'the opposite edge, the sides oi the head being notched to engage over awire' on the'tcradle, a cutting blade, and means mounting said blade on the'head with the I cutting edge thereof in. position betweenrlsaid the wire-is placedrthreugh holes 20, the tool bar sides of the head and adjacent the passage, lowerged;v and the tool then rotated about the whereby with relative rotation between the tool and wire on the cradle and engaged by the head, wire, illustrated in Fig. 5 as 0. Cutting edge 22 - cuts through the covering and insulation but does not cut the wire due to its con?guration and <10 may?oe resorted to as do not form a departir fromthe'spirit of the invention, as deiiined by the , termination short oi'the center of holes 20. When the cutting blade will cut away the covering and insulation of the adjacent portion of wire. ' WILLIAM WOLLENWEBER.