US939728A - Wrench. - Google Patents

Description

D. MALLORY.

Patented Nov. 9, 1909.

x1 ffomcy 5 DENNIS 'MALLOBY, OF EDGAR, NEBRASKA.

WRENCH.

Specification of Letters Patent.

Patented Nov. 9. 1909.

Application filed. February 9, 1909. Serial No. 476,887.

I '0 all whom it may concern:

Edgar, in the county of Clay and State of Nebraska, have invented certain new and useful. Improvements 1n \Vrenches; and I do hereby declare the following to be a full,

clear, and exact description of the invention, such as Will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to new and useful improvements in wrenches and more particularly to a hand-operated combined nut and pipe wrench and my object is to provide means for quickly adjusting the sliding aw to clamp the object to be turned between the sliding and stationary jaw and a further object is to provide means for holding the sliding jaw in its adjusted position.

Other objects and advantages will be hereinafter referred to and more particularly pointed out in the claims.

In the accompanying drawings forming part of this application, Figure 1 is a side elevation of the wrench complete. Fig. 2 is a sectional view as seen on line 2-2, Fig. l, and, Fig. 3 is an edge elevation of the bar employedwfor operating the movable aw. I

Referring to the drawings in'whiclrsiniilar reference numerals designate corresponding parts throughout the several views, 1 indicates the shank of my improved wrench, to one end of which is fixed a jaw 2, and 3 indicates a movable jaw, said jaw having an opening 4 thcrethrough, through which. extends the shank 1.

Pivotally secured to the free end of the. shank 1, is a handle 5, said handle being adapted to be employed for adjusting the movable jaw 3 and to serve as a lever for V the wrench, the pivoted end of said handle having a lateral extension (3, in which is formed a slot- 7, in which is pivotally secured a tongue 8 of a bar 9, the opposite end of said bar being likewise provided with atongne it), which enters a tavity 11 in the jaw 25, a pin 12 being entered through the jaw and the tongue 10 to pivotally secure the bar to the jaw, a pin 13 being also introduced through the lateral extension (3 and the tongue 8 to pivotally secure the bar to said extension.

The shank 1 is-pivotally secured, at one edge of the handle 5 and to that edge farthest from the extension 0, said shank being introduced into av recess 14 andheld therein by means of a pin 15 and it will be readily seen that as the handle is swung back and forth on the shank 1, the jaw 3 will be moved toward and from the fixed jaw 2.

The jaw 3 is held in its adjusted posit-ion by attaching a link 16 to the bar 9', the free end of the .link being adapted to engage notches 17 on one edge of the shank 1 and by providing a plurality of the notches, the jaw 3 may be held in various adjustedpositions.

The meeting faces of the aws 2 and 3 are preferably concavebetween their ends and their intersection with the shank 1, whereby the wrench may be employed for turning or holding a round object, said concave portions being provided with teeth 18, which are adapted to engage the surface of the round objectv and hold the same in a fixed position.

In applying the wrench to use, the link is disengaged from the notches 17 and the handle 5 moved to separate thejaws to receive the object to be turned and after it is placed between the jaws and the handle 5 swung in the opposite direction until the object issecurely clamped between the jaws, the li nlnlttis again swung into engagement with" one of HTeniotQes when power may be applied to the handle to swing the lever in either direction, the engagement of the link with the notch, rendering the handle 5 rigid with the shank.

It will thus be seen that I have provided a very cheap and. economical form of wrench and one that may be quickly applied to use and by providing the meeting faces of the jaws with concavities and "placing therein 4 the teeth as shown, said wrench may be applied for turning round, as well as flat faced objects. \Vhat I claim is: 1. A wrench comprising a shank having a lixed jaw thereon, a handle pivotally connected ad jaccnt one of its edges to the shank,

a lateral extension on said handle, a movthe free end of which link is adapted to enj gage the notches in the shank and hold the 5 movable jaw in its adjusted position, the

meeting faces of said jaws having concavities, the surfaces of Which are provided with teeth.

In testimony whereof I have signed my 15 name to this specification in the presence of two subscribing witnesses. 1

DENNIS MALLOR'Y.

lVitnesses: I

R. ALLnn, W. H. HAYDENi

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