US604526A - Pipe-wrench - Google Patents

Description

(No Model.)

T. J. FOWLER. PIPE WRENCH.

N0. 604,526. Patented May 24,1898.

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THOMAS JEFFERSON FOWLER, OF TOPAZ, CALIFORNIA.

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SPECIFICATION forming part of Letters Patent No. 604,526, dated May 24:, 1898.

Application filed Time 26, 1897. Serial No. 642,489. (No model.)

To all whom it may concern:

Be it known that I, THOMAS JEFFERSON FOWLER, residing at Topaz, in the county of Mono and State of California, have invented a new and useful Pipe-Wrench, of which the following is a specification.

My invention relates to wrenches, and particularly to pipe-wrenches, and has for its object to furnish a wrench of this class which shall be extremely simple in constructi on very strong, powerful in operation,cheap, not liable to be broken in use, and composed of a minimum of parts.

With this object in view my invention consists in the improved construction, arrangement, and combination of parts hereinafter fully described, and afterward specifically pointed out in the appended claim.

In order to enable persons skilled in the art to which myinvention most nearly appertains to make and use the same, I will now proceed to describe its construction and operation in connection with the accompanying drawings, in which- Figure 1 is a perspective view of a pipewrench constructed in accordance with my invention in posit-ion upon a section of pipe and ready for practical operation. Fig. 2 is a detail perspective view showing the several parts of which my improved pipe-wrench is composed detached from each other.

Like letters of reference mark the same parts wherever they occur in both figures of the drawings.

Referring to the drawings by letters, A is the handle of the Wrench, having through it two or more holes A and formed at its end with teeth A which cut into and grip the pipe being turned.

B is the movable jaw, provided at its front end with a curve B, the inside of which is V- shaped and provided with teeth 13 in both sides of the V, all pointed in the same direction, which will be opposite to the teeth A of the handle when the parts are connected together. The jaw 13 is provided with two arms or cars B at its rear end and projecting from the bar on the same side as the curve B, set wide enough apart to embrace the handle, and having holes B as shown, the hole in one arm being of less diameter than that of the other and screw-threaded. This jaw 13 has also two other arms B projecting from the same side thereof and about centrally between the curve B and arms 13 which arms 13 may be similar in construction to the arms B but without perforations, and the same distance apart.

0 is a connecting pivot-screw which is passed through one of the jaws B then through one of the perforations A in handle A, and finally threaded into the opposite jaw B thus securely attaching the handle (or fixed jaw) A to the removable pivoted jaw 15, the arms B and B lying on both sides of the handle A, acting as guides therefor and preventing wabbling or side strain or twist on the pivot O.

D is a section of pipe, such as gas or water pipe, and it is shown grasped between the jaws of the wrench in Fig. 1. An inspection of this figure in connection with Fig. 2 will show that the teeth A of the handle-jaw engage the pipe on the opposite side from the teeth 13 of jaw 13 and that they point in the same direction when considered in connection with the periphery of the pipe D. \Vhen it is desired to turn a pipe in either direction, the jaw B, swinging on pivot O, is placed over the pipe with the teeth in contact with the pipe and pointing in the direction to be turned. By now pressing on the lever-handle, so as to bring its forward end toward jaw B, the teeth A will engage the pipe, as seen in Fig. 1, and pressure upon the lever will tightly grip the pipe between the jaws and carry it around in the direction the teeth are pointing. The more pressure there is required to start the pipe the tighter the jaws will grip it, and the pipe is bound to turn unless the handle breaks. There can be no liability to slip, as the leverage is such that the teeth will be forced into the metal of the pipe.

The wrench will operate upon a considerable range of sizes of pipe without changing the pivot; but it can readily be changed to adapt the wrench to larger or smaller diameters of pipe.

My device is cheap, strong, powerful, and certain in operation, and while I have illustrated and described what I consider the best means for carrying out my invention 1 do not wish to be understood as confining myself to the exact construction shown, but consider myself entitled to all such slight changes or variations as might suggest themselves to the ordinary mechanic, such changes and variations falling clearly within the limit and scope of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent 0f the United States, is

In a pipe-Wrench, the combination of a handle-jaw having a series of perforations and a curved or cam-shaped outer end provided with teeth, a movable jaw having its outer end curved or bent to one side, the inside of said jaw being V-shaped and provided with teeth on both sides of the V, two parallel arms proj ecting from the movable jaw on the same side as its curved end, embracing the handle-jaw and having perforations to register with those of the handle-jaw the perforations of one arm being of less diameter than the other and screw-threaded,a pivot-screw passing through the perforation of one arm of the movable jaw and one of the perforations of the handle-jaw and threaded into the perforation of the other arm of the movable jaw, and a second pair of parallel guide-arms projecting from the movable jaw on the same side as the curved end, between the curved end and the pivot-arms, all substantially as and for the purpose set forth.

THOMAS JEFFERSON FOWLER. Witnesses:

O. W. RIOKEY, THOMAS OARNEY.

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