US1249587A - Adjustable wrench. - Google Patents

Description

.l. T. AUBURG.- ADJUSTABLE WRENCH. APPLICATION HL ED APR.3| 1916- Patmted Dean 11, 191?.

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1,2495%? Specification of Letters Patent. Patgmtgd Dem ILL 191*? j r Animation filed April 3, 1am. serial No. 88,695.

To all whom it may concern:

Be it known that I, Jnssn T. AUBURG, a citizen of the United States, residing at Nadine, in the county of Eddy and State of New Mexico, have invented certain new and useful Improvements in Adjustable Wrenches, of which the following is a speci fication, reference being had to the accompanying drawings.-

This invention relates to wrenches, pliers, and like tools, and particularly to a combined wrench, plier, screw driver, nail puller and wire cutter.

The general object of my inventionis the provision of a very simple wrenchhaving a fixed and a movable jaw wherein the movable jaw may be adjusted toward orfrom the fixed jaw and then forced into clamping engagement withthe work.

A further object of my invention is the provision of a wrench wherein after the movable jaw has been adjusted toward or from the fixed jaw it may be further adjusted to force it into clamping engagement with the work by power applied to the shank of the movable jaw.

Still another object of my invention is the provision of means whereby the power for shifting the movable jaw into clamping engagement with the work may be applied mechanically and the jaws held in their clamping position. 7 j

Still another object is-the provision of a wrench of this ch-aracterin which the movable jaw-is provided with a wire cuttingslot and the shank of the fixed jaw is provided withwire supporting grooves or notches and wherein the relative movement of the shanks ofthe fixed and movable jaws toward each other will cause the movable jaw to shift in such manner as to give a shearingcut on the wire which is disposed in the wire cutting slot. a 1 i 1 Other objects will appear in the course of the following description. "My inventlon isillustrated in the accompanying drawings, wherein:

".Figure 1"'s an GlGVEltlOIl of a combined pliers and wrench constructed in accordance tional' view showing a modified form of latch. 1

Referring to these drawings, 10 designates the fixed jaw of the wrench, and 11 the shank extending therefrom. The shank is rectangular in section. The head projects beyond the shank on all sides and the inner face of the head 10 extends at an angle to the lengthof the shank Hand is toothed or otherwise roughened, as at 12. At the opposite end the head projects beyond the shank to form a hammer head 13. Preferably the side faces of the shank are channeled, as atl l, for a certain purpose which will presently appear. The end of the shank opposite the head is preferably formed to provide a screw driver blade 15.

.Slidingly mounted upon the shank 11 is the" movable jaw which is designated generally 16. j This movable jaw isformed in one piece with the shank 17 which is dis 18, for the passage of the shank 11 and the face of the movable jaw which confronts the face 1320f the relatively fixed jaw is toothed or roughened, as at 19. The movable'jaw may be provided with inwardly projecting pin 20 which engage inthe grooves 14 so as to'prevent any removal of the movable jaw from the shank 11. j

Pivotally mounted between the side walls of the'shank 17 is a pawl 21 one end of which is adapted to engage with the ratchet teeth-22 on the shank 11, the free end of the pawl being forced inward against the ratchet teeth by meansof a spring :23; The end of theshank toward the head 16 is slotted, as at 24, I and the adj acent-end of the pawl operates within this slot so that the fingers of the operator may readily engage with this end of the pawl so as to turn the free endtoward the shank 17 against the force of the spring 23. The extremity of the shank 17 is preferably formedto provide atack puller 25 or other convenient implement of like character, this extremity of the shank being particularly-adapted for pulling staples, tacks,

or small nails. As will'be seen from Fig. 1, the; spring 23 normally urges the'shank17 into an'acutely angled relation to the shank 11. The movable jaw is formed with a notch 26 and a cutting blade27 which coacts with action will be secured.-

the shank 11 to form a Wire cutter. It will be seen that when the pawl is engaged with any one of the notches 22-and the shank 17 is forced toward the shank 11 the blade 27 will move both toward the fixed jaw "10 and transversely of the shank so that a shearing It will likewise be seen that the wire to becut may be readily disposed upon any one of the notches 22 and thus heldin firm position while being cut.

For the purpose of holding the shank 17 in a more or less parallel relation to the shank 11,. I preferably provide a collar,

designated 28, which is adapted to slip over the shanks l1. and 17, this collar being provided with a cam 29 which when rotated .will bear against the shank 17 and force it inward and lock it in its inwardly turned position. Under these circumstances the shank 17 is held closed against the shank 11 I. and the jaws held closed against the work.

It will be obvious that the cam 29 provides means whereby great leverage may be applied to the shank 17 and thus the jaws ,firmlyclosed and locked upon the work.

I do not wish to limit myself to the use of a collar 28 and cam 29 for this purpose,

however, as Imay use'other retaining means.

Thus in Fig. ,5, I show the shank 11 as formed with a slot 30 whose walls converge outward and show the shank 17 as provided with apivoted tongue 31, the opposite faces of which are formed with ratchet teeth 32. l/Vhen this tongue is forced through the slot 30, it may be caused toengage with the wall of the slot and will then look the jaw 17 in its adjusted position.

Preferably, though not necessarily, a pawl 33 is mounted upon the movable jaw to engage with teeth 34 formed on the shank 11. This pawl 33 is relatively short. The pawl is forced toward the teeth by a small spring 35 and by'the provisionof this pawl a step by step movement may be given to the movablejaw to force it toward the fixed'jaw.

' The slot 18 islongenough, however,to permit the movable jaw to be forced laterally so asto cause the pawl 33 to disengage from the teeth 34 and then themovablejaw may be readily drawn downward to any desired position. As'before remarked, this pawl 33 may be used, but it'is not absolutely necessary for the proper operation of the wrench and maybe left off if desired.

Particular attention is called to; the fact that when the pawl? 21 is engaged with the notch 22-and. the shank 17, is forced toward 1 theshank11,-the oscillation of the pawl 21 into a position approximately parallel to the shank 17 will cause the pawl to formamovablefulcrum for the movablehead and the 9111,13? ota po he movable headwill, as a consequence, not Pivot of the pawl but topics. 91 thls p atgnt maybe obtained. for five cents each, by add-358mg 1 comprising a relatively fixed jaw will likewise move toward the fixed jaw 10.

A compound leverage is thus secured so that great power is exerted upon the movable jaw and a relatively great clamping action is secured upon the work. It will also be obvious that the movable jaw may be shifted longitudinally along the fixed shank so as to roughly adjust the movable jaw relative to the fixed jaw and that then the closing of the hand by the means before described will cause the movable jaw to shift still farther toward the fixed jaw and exert a binding and clamping action upon the work. After the two jaws have been set upon the work,'the movable jaw may be held in a set position by means of the clamping device 28 r and 29 or by means of the tongue 31.

.JZLW may be entirely removed from its engagement with the shank 11 and the shank 11 may then be used as a hammer or as a screw driver. Indeed, the shank 11 may be used as a hammer or a screw driver without removing the movable jaw, and the shank '17 may be used for drawing tacks, staples,

nails, etc., either with or without removing it from the shank of the fixed jaw. My improved device may be used as pliers,- as a wrench, as a small vise, or in a number of other situations. By reason of the relatively great power of the movable jaw it may be readily clamped and firmly secured to the work to be held.

Having described my invention, what I claim is:

An implement of the character described having a shank toothed on one face, a jaw slidably mounted on the fixed shank and having a shank rigid therewith, said last named shank, adjacent its-puncture with the jaw, being longitudinally slotted upon its outer face, a pawl pivotally mounted upon the movable shank, the pivot of said pawl being disposed intermediate the length of the pawl and in said slot, said pawl forming a fulcrum upon which the movable shank and jaw may rock, and a spring urging the pawl into engagement with the teeth, the end. of the pawl beyond the pivot thereof and remote from its active end projecting through the slot, when the shank of the movable jaw is angularly disposed with relation to the shank of the fixed aw.

In'testimony whereofI hereunto afiix my signature inthe presence of two witnesses. I

JESSE T. AUBURG.

Gemstone: 01- lietcnta.

Washington, I). 0.

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