US851881A - Wrench. - Google Patents

Description

No. 851,881. PATENTED APR. 30, 1907.

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UNITED STATES PATENT OFFICE.

DANIEL C. GROVES, OF BROCKWAYVILLE, PENNSYLVANIA;

WRENCH.

Specification of Letters Patent.

Patented Apr-i 30, 1907.

Applicatinn filed January 21,1301. Serial r0. 353,314.

Be it known that I, DAXmL' C. Gaovrs, citizen of the United States, residing at Brockwayville, in the county of Jefi'erson and State of Pennsylvania, have invented certain new-andyuseful Im rovements in:

Wrenches; and I dodeclare t e following to be a full, clear, and exact description of the invention, such as will enable others skilled in kindwhichwill the art to which I it appertains-to make and usethe'samev invention relates to wrenches, and

[The accompanying drawings illustrate the invention in which Figure 1 is a longitiidinal sectional view of the wrench; Fig. 2 is a top plan view of the same, a portion of the movable jaw being broken away; Fig. 3 is a -transverse sectional view taken through the movable jaw; Fig. 4 is ly a sectional view of a portion of the ad listing mechanism.

. eferri'ng more particularly to the draw:

'ings', l'indicates the shank or handle of my wrench which may be'of any suitable'size andv 13 dimensions having a fixed jaw 2 atone end and the handle portion atthe other. How ably mounted upon the shank is a movable jaw 3 which is provided at its upper end with a cham r 4 within which is seated a locking membci G preferably in the form of a wedge. The member 5 is adapted to be held in engagement with an inchne member 6'upon the shank 1 by any suit-able mechanism, preferably as a bolt or wing-nut 7. The locking member 5 is held against longitudinal movementwithin the chamber 4 by means of guides or flanges 8 at the opposite ends of the chamber, and if desired a reinforce 9 may be secured across one side of the chambered end of the jaw 3.

I A hufi'er 10 is preferably located between the handle ortion of the shank and the inclined mem )er 6 to prevent the accidental removal of the jaw 3 and also to add strength thereto. The sides of the handle are also preferably provided with the usual plates 11 and the inclined portion 6 is preferably narrower than the main ortion of the shank thereby forminglshoul ers 12 with which the inner ends of the guides 8 are adapted toengage and thereby causes the movable jaw to move easily without danger of binding.

' Although the pressure upon the wedge member 5;ill always cause itto engage with the inner end of the bolt 7, the two may be connected together by reeessing the opposite wedge member as shown at' 13- sides of the and reducing the end of the bolt 7 so as to prniject through the opening in. the'wedge an riveting it therein, as shown-M14.

As above described, it will be seen that the movable jaw can be freely. moved longitudinally upon the shank irom one end to the other and fixedly secured thereon at any point by roperly adjusting the-bolt I so as to cause the wedgernember 5 to e age with the inclined face of the wedge modifier 6 and thereby prevent any oss'ible movement of the jaw 3 away from t e fixed j aw until after the bolt- 7 has been loosened. By constructing the parts in this manner, itwill be seen that the adjustment of the wrench to its 1 est dimensions, as for instance, two inc es, can be secured by a movement of the bolt 7 a distance ual to the height of the incline, for instance ess than one-half an inch,

thereby permitting of the adjustment made much quicker than the wrenches in which the movable jaw is actuated by means of a screw-thread. Iii-opening the wrench or movi the jaw 3 away from the fixed jaw, the b0 t 7 can be unscrewed a sufiicient distance withoutits moving the w e5 as the outward movement of the jaw wedge to move outwardly toward the boltuntil it comes into engagement therewith and thereby locks the jaw against further movement. In mo direction, the wedge 111 follow the inclined surface, but if it does not, it be forced cause the the jaw in the other into engagement by the inward movement of It 1s as. will come Within the appended claims without departing from the spirit of the in vention.

. Having thus described my invention What- Iclaim as new, is

1. An adjustable Wrench having its shank provided with an inclined sufface, and its a bolt for forcing the wedge uiizo engagement movable jaw slotted and provided with inclined ortion" being of less w dfih -than the shank,' t. ereby forming shoiil'ders .and ithe Walls of the chamber provided with goides'at.

its front and rear to' engage'with sa1d shoi11 dens, a wedge in'the' chamberandajboliiffo forcing the wedge into engagement-with said inclined surface.

In testimony whereof I ha e1here111m;o seii es. I

Witne WENDELL5M T} JENNIE WACHOR

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