US807397A - Pipe-wrench. - Google Patents

Description

PATEN'IED DEC. 12, 1905.

H. L. NEWTON.

PIPE WRENCH.

llwentor H. 4. flew/077.

r I I wiltnesses PATENT OFFICE.

HENRY L. NEWTON, OF BUTTE, MONTANA.

PIPE-WRENCH.

Specification of Letters Patent.

Patented'Dec. 12, 1905.

I Application filed June 28,1905. Serial No, 267,431.

To all whom it may concern.-

Be it known that I, HENRY L. NEWTON, a citizen of the United States, residing at Butte, in the county of Silverbow and State of Montana, have invented certain new and useful Improvements in Pipe-Wrenches, of which the following is a specification.

This invention comprises a novel form of pipe-wrench especially adapted for turning pipe or similar round bodies.

For a full description of the invention and the merits thereof and also to acquire aknowledge of the details of construction of the means for effecting the result reference is to be had-to the following description and accompanying drawings, in which Figure 1 is a view, partially in elevation and artially in section, of a wrench embodying t e invention. Fig. 2 is a view similar to Fig. 1, showing the position of the pivoted jaw in the action of turning a body in'the actual use of the wrench, the handle of the wrench being broken away. Fig. 3 is a detail perspective view of the pivoted jaw. Fig. 4 is a detail perspective view of the longitudinally-movable jaw. Fig. 5 is a detail perspective View of the spring coacting with the longitudinally-movable jaw.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters. 4

A wrench embodying the essential features of this invention consists of a shank 1, an end portion of which is formed with a handle 2, the other end portion being provided with a longitudinal recess 3 in a side thereof. Mounted in the recess 3 is the shank 4 of a longitudinally-movable jaw 5, the mounting of the jaw 5 being such as to permit a certain amount of oscillatory movement thereof when the wrench is in actual use and in engagement with the body being operated upon. Coacting with the'jaw 5 is a pivoted jaw 6, and both of the jaws 5 and 6 are provided with engaging teeth 7 upon their acting surfaces. The jaw 6 is pivoted between its ends, as shown at 8, and said jaw is provided upon its inner side with longitudinally-arranged teeth 9, said teeth 9 coacting with a number of longitudinally-arranged teeth 10 upon the shank 4 of the jaw 5. The teeth 9 are carried by the shank 11 of the jaw 6, and the jaw 6 is formed at one end of the shank 1 1 thereof, the opposite end of the shank 1 1 being curved to form an extension 12, which projects inwardly from the shank and operates in an end of the recess 3 in the shank 1 of the .wrench. The end portion of the recess 3, in

which the extension 12 operates, is undercut, as shown at 13, in order that the extension 12 may be limited therebyin its outward movement when the jaw 6 is actuated on application of the tool to a body for turning the latter. The shank4of thejaw5 is loosely mounted in the recess 3 of the shank 1, and a flat spring 14 is interposed between the shank 4 and the side of the shank 1 opposite that upon which the jaw 6 is arranged. The spring 14 is held in place by a fastening, such as a screw 15, and this spring normally holds the teeth 10 of the shank 4 in engagement with the teeth 9 of the shank 11, permitting a certain amount of oscillatory movement of the shank 4 in a manner which will be obvious to those cognizant with this class of devices. A coilspring 16 is interposed between the extension 12 and the shank 1, the extension 12 having a recess 17 and the shank 1 having a recess 18 to receive opposite ends of the spring 16 aforesaid.

It will be noted that in the practical use of the tool before set forth in this description as the jaws 5 and 6 engage the body with which they cooperate sald jaws are adapted for a certain amount of oscillatory movement, and as the same are ratcheted in turning the body being operated upon the jaw 6 gets a certain amount of pivotal movement while the jaw 5 gets a similar movement, said jaw 5 being adapted to be adjusted longitudinally of the shank 1 by merely grasping the jaw andforcing the teeth 10 away from the teeth 9. rectly with the jaw 5 in the customary way, but said jaw 6 is provided with the shank 11,

The jaw 6 not only cooperates di-.

coa cting with the shank of the jaw 5 to hold the latter at a predetermined adjustment.

Having thus described theinvention,what is claimed as new is 1. In a pipe-wrench, the combination of a shank, a work-engaging jaw pivoted to said shank, a second work-engaging jaw adjustcarried by the two jaws for intermeshing en gagement so as to fix the position of the longitudinally-movable jaw at a predetermined adjustment.

3. In a pipe-wrench, the combination of a shank, a work-engaging jaw pivoted to said shank, and a second work-engaging jaw adjustable longitudinally of the said shank and coacting with the first-mentioned jaw, the pivoted work-engaging jaw being adapted for looking engagement with the longitudinallyadjustable jaw to position the latter at a predetermined adjustment.

4. In a pipe-wrench, the combination of a main shank provided with a handle, a workengaging jaw pivoted to said shank and also having a shank, and a work-engaging longitudinally movable jaw having a toothed shank and adapted for oscillatory movement on the main shank, the toothed shank of the pivoted jaw having teeth coacting with the shank of the longitudinally-movable aw so as to position the latter at a predetermined adjustment.

5. In a pipe-wrench, the combination of a main shank, a aw pivoted to said shank and also having a shank, a longitudinally-mow able jaw mounted upon the main shank and adapted for oscillatory movement thereon, the shank of the pivoted jaw having teeth coacting with the shank of the longitudinallymovable jaw so as to position the latter at a predetermined adjustment, and springs interposed between the main shank and the shanks of the pivotally and longitudinally movable aws.

In testimony whereof I affiX my signature in presence of two witnesses.

HENRY L. NEWTON.

Witnesses JOHN N. KIRK. I. A. COHEN.

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