Chain wrench.

Application filed August 6j 1902. Serial Ko. 118,670. (Ko model.)

To all whom it may concern;

Beitknownthat we, JosephD. Brown and Walter McDermott, citizens of the United States, residing at Greenville, in the county of 5 Wayne and State of Missouri, have invented certain new and useful Improvements in Chain Wrenches; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others io skilled in the art to which it appertains to make and use the same.

The invention relates to chain wrenches.

The object of the invention is to provide a wrench of this character which shall be sim15 pie of construction, durable in use, comparatively inexpensive of production, and efficient in action.

With these and other objects in view the invention consists in certain novel features of 20 construction, combination, and arrangement of parts, which will be hereinafter more fully set forth, and particularly defined in the appended claims.

In the accompanying drawings, Figure lis 25 a side elevation of our improved wrench. Fig. 2 is a top plan view.

Referring to the drawings, 1 denotes the handle, and 2 denotes a pivoted jaw, having a curved outer serrated face 3, claws 5 at one 30 end and an aperture 6 at the other end.

denotes a chain, one end of which is pivoted between the ears 8, formed on the handle, and the other end of which is adapted after being passed around apipeorother ob35 ject to be held or turned to engage with the claws, and thus permit of the operation of the wrench. It will benoticedthat several of the links a, b, and c have smooth outer sides, while the remaining links, or particularly 40 those at or near the free end of the chain, are provided with shoulders 9. The links are of sufficient size to fit in the space between the claws, so that the shoulders will engage the claws and prevent the withdrawal of the links 45 from between the claws. When a pipe or other object is confined between the chain and serrated face of the pivoted jaw, the greater the pressure applied to the handle the greater will be the binding action of the chain, which will in no wise mar or damage the object with 50 which it is engaged.

From the foregoing description, taken in connection with the accompanying drawings, the construction, mode of operation, and advantages of our invention will be readily un- 55 derstood, it is thought, without requiring a more extended explanation.

Various changes in the form, proportion, and minor details of construction may be resorted to without departing from the princi- 60 pie or sacrificing any of the advantages of our invention.