US1599162A - Wrench - Google Patents

Description

Patented Sept. y7, 19267.A

r y f NLT 0F 1,599,162 FICE.

f `.mamsy ajenowmor BUFFaLo, NEWIYORK.

- WRENCH. y

' Application tiled February 1, 1924. SeralNo. 690,072.

invention relates to vticularly toY ythat type k'novvn .as adj ustablf.x

'endwrenches Wrenches ofthe type under :consideration are` provided With a fixed jaw!integralwith the handle vand aslidingjaw which isoperated by a knurled wormnut. In using. Wren'chesof, thistype `the adj ust-ment of the jawsk is easily disturbed by a slightengagement Withl the knurled nut. This occurs upon laying down or picking up the Wrench and by engagement with nearby parts While theryvrench is in use. Y

" The object of my invention is to 'provide a wrench of this character equipped with means for holding or. locking the ja- Ws in adjusted position. A further object of my invention is to provide a Wrench as above mentioned in which `the locking device will not interfere With the ordinary quick adljustment of the jaws. AL further object of my invention is to provide a Wrench of the character mentioned in which the adjust-V ing nut and the locking deviceV may be actuated by one hand to theend that the device is adapted for nsein lsmall places which would be inaccessible toa Wrench equipped with bulky or projecting locking means or one which would require both hands to adjust. Further objects Will appear herein after., l 1 Y i n With these objects inview my invention consists generally Vin a wrench of the type mentionedv comprisinga fixed jaw and `handle, a slidinlg` adjustable jaw and a knurled Worm nut foradjusting the latter, in combination.. with a locking latch slidably mounted in the handle, the Worm nut being provided with peripheral notches to receive the end of the latch tor lock the nut against further movement after adjustment. My invention further consists in a device as mentioned equipped with means for holding the latch in either loperative or retracted position. My invention further consists in ments of parts all as lWill. be fully described hereinaftervafnd particularly pointed out in the claims. i f

invention Will beimore readily under'- stood 'by reference to the accompanying drawings forming a part of this specification and in Which- Fig. 1 is a perspective View of a jwrench embodying my inventionin its preferred form,

Wrenches and par- Figl 2 ,isa detailed section of, the same f I aken upon the yline 2--2fof Fig. l and illus` ytratedfupon an enlarged scale.

F ig.` 3' 1s: aJ transverse section `on the line 3-3 of Fig. 2,1, f A f Fig'. :4' isa detailed section on the lino 4-4VofFig. 3, and

F igpis a detailed section illustrating,` a modified form. f f

Referring now to the drawings 1 indicates l the handle of the Wrench having the usual enlarged head 2 terminating in a` fixed jaw 4L is the adjustable jaw provided with a shank 5, slidably mounted in a groove 6 in the head 2. rlhe shank 5 terminates in an enlarged portion 7 formed With the usual rack 8. 9 indicatesthe Worm nut rotatably i 'mounted vin a recess 10 in thehead 2, upon a screw 11 which forms a shaft for the same. The Worm nut 9 is provided With a knurled periphery 12 as is usual in Wrenches of this type. The periphery of the nut is also provided with. a plurality of notches 13`for a purpose hereinafter described.

Mounted vupon the handle l is a sliding latch 14 terminating in a taperedend 15 adapted to engage the notches 13 to hold the wrench in adjusted position. This latch comprises al short bar having beveled sides 16 fitting in a dove-tailed groove 17T in the handle. The upper face of the bar projects but a slight distance above the face of the handle and is knurled as at 18 to facilitate manipulating .the same. By this arrangement the locking device is'entirely below the plane of the face of the Wrench head; thatis, it. does not project from the side of the Wrench as far as the knurled nut 9 and the face of the head 2 and, therefore, does not interfere in any Way whatsoever With the operation of the Wrench,'which is of great advantage, particularly When Working in small' places.

To maintain the latch in operative or re" tracted position, I provide a suitable spring latch. As shown in F igs. 2, 3 and lLthis comprises a spring pressed ball 19 adapted to engage in either of the recesses 2O pro-r vided in the under face of the latch 14. In practice, the handle 1 is provided With a recess 2l to receive the springr 22 and ball 19. In'the modified form shown in Fig. 5 the ball 19 is replaced by a plunger 23 havinga double beveled .end 24 adapted to engage vin similarly shaped recesses 25.

construction above described the latch maj)Y he readily moved into operative or inoperative position hy the thumb of the hand holding the Wrench, the retaining` means being suicient to hold the latch in either position desired,V hut not offering suiiicient resist*- ance to inale the device difficult to operate.

I claim l. A Wrench comprising,` a. handle having; a head,v a fixed j an' on said head, said head beingt provided With a groove, and an adjustable jaw having` a shank slidahle in said vgroove, a Worin nut for adjustingl said jaw and provided With a notched periphery, av latch slidahly mounted in the side of said handle and adapted to engage said notched periphery to lock the wrench in adjusted position, said latch being entirely below vthe plane of the face of the Wrench head and means between the handle and the inner face of the latclrtor holding the latch in either operative or retracted position, suhstantiah vly as described.

2. A device as set fort-h in claim l in which said latch comprises a bar having beveled sides, the handle of said Wrench heing` provided with a dove-tailed groove to receive the same, the upper face of said latch heine` hut slightly above said groove and knurled.

ln testimony WhereorI I have signed my' name to this speciiication.

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