US57621A

US57621A - Improved pipe-wrench

Info

Publication number: US57621A
Authority: US
Publication date: 1866-08-28
Anticipated expiration: 1883-08-28

Description

UNITED STATES PATENT OEEIGE AMOS OALL, OF SPRINGFIELD, MASSACHUSETTS, fASSIGNOR TO THE BEMIS 85 CALL HARDWARE AND TOOL COMPANY, OF SAME PLACE.

IMPROVED PIPE-WRENCH.

Specification forming part of Letters Patent No. 57,621, dated August 28, 1866.

4 To all whom 'it may concern Be it known that I, AMOS CALL, of Springalternately grasping and letting go its hold. The upper jaw, K, is placed over the pipe or field, Hampden county, Commonwealth of other round body to be turned, andthe lower l\Iassachusetts, have invented a new and Improved Iipe-E'Trench; and I do` hereby declare that the following` is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

The drawing represents a side view of this invention, which is ot' the class known as pipewrenches,77 and used to grasp and force around pipes and other similar articles.

sists of a piece, A, provided at one end with a handle, B, and having a screw, C, cut upon it. At its upper end it is bent around, forming the upper jaw, K, of the wrench. Upon this piece runs the nut D, and attached to D, at its upper end, I place the part E, which lit-s over and slides on the main part A. This piece E is tted at the upper and lower end, Where it embraces the part A in such a manner as to have a slight lateral play, and the spring F is inserted to keep the front side, G, ofthe piece against the part A. In the upper part of this piece E, I insert the piece H, having its upper surface formed in teeth, so that it may catch and hold on the pipe more readily.

This Wrench is operated, like other pipe- Wrenches, by a forward-and-backward motion,

jaw screwed up until the piece H strikes the pipe, and at this time the utility of the spring F is shown, in the insertion ot' which and combination with the other parts this invention consists; for it' this part E is fitted rigidly it cannot be screwed up hard enough but that it will slip on some of the different sizes to which it is applied, and if it is made loosely or pivoted at the bottom, as soon as it is turned back to take a new hold on the pipe the grasp Its constructionI will now describe. It conl is lost, and cannot be regained without pushing the piece H up against the pipe. This operation is performed by the spring F, which keeps the jaw up to the pipe, and tightens upon it as the wrench is turned, and also allows the jaw to adapt itself to various sizes of pipe more readily.

Now, having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination of the spring F With the parts A and E of the Wrench, when arranged and operating substantially in the manner and for the purpose herein described.

AMOS GALL.

Witnesses:

J. B. GARDINER, WM. C. BEMIs.