US136350A - Improvement in pipe-wrenches - Google Patents

Improvement in pipe-wrenches Download PDF

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Publication number
US136350A
US136350A US136350DA US136350A US 136350 A US136350 A US 136350A US 136350D A US136350D A US 136350DA US 136350 A US136350 A US 136350A
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Prior art keywords
pipe
jaw
wrenches
improvement
wrench
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Expired - Lifetime
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the nature of my invention consists in constructing the wrench with a peculiarly-formed detachable jaw, which is acted upon by a pawl attached to one of the levers, said jaw being detachable so that it may be taken off and its place supplied by one of a difierent capacity, so that the wrench may be adapted to differentsized pipes.
  • the bearing-surfaces of bothjaws are smooth.
  • the object of the invention is to make a wrench that is easily adapted to different sized pipes, and one that will not injure the surface of the pipe.
  • Figure 1 is an elevation of my invention.
  • Fig. 2 is an elevation of the same,the detachable jaw being removed.
  • Figs. 3 and 4 represent the jaw in elevation and plan.
  • a and B represent the two arms or 1evers of the wrench, being hinged together at b.
  • F is apawl attached to projections E from the lever B.
  • the arm A has at its endaboss, O, projecting from both sides. These bosses are so fitted that the detachable jaw G, Figs. 3 and 4, may be connected to them, it being forked for the purpose, as shown in Fig.4, the bosses U acting as a pivot upon which the jaw swings.
  • the jaw G has upon its back a series of notches, K, into which the pawl F fits, so that upon working the arm B the pawl will act upon the jaw, and thus close it upon the pipe to be acted upon.
  • D is the inner'or buttress-jaw, and is pivoted, as shown, to the arm A.

Description

UNITED STATES PATENT QFFIGE.
TURNER WILLIAMS, OF PROVIDENCE, RHODE ISLAND.
IMPROVEMENT IN PIPE-WRENCHES.
Specification forming part of Letters Patent No. 136,350, dated February 25, 1873.
To all whom it may concern:
Be it known that I, TURNER WILLIAMS, of Providence, in the county of Providence and State of Rhode Island, have invented a certain new and useful Improvement in Pipe- Wrenches, of which the following is a specification:
The JV atnre of the Invention.
The nature of my invention consists in constructing the wrench with a peculiarly-formed detachable jaw, which is acted upon by a pawl attached to one of the levers, said jaw being detachable so that it may be taken off and its place supplied by one of a difierent capacity, so that the wrench may be adapted to differentsized pipes. The bearing-surfaces of bothjaws are smooth. The object of the invention is to make a wrench that is easily adapted to different sized pipes, and one that will not injure the surface of the pipe.
Description of the Drawing.
Figure 1 is an elevation of my invention. Fig. 2 is an elevation of the same,the detachable jaw being removed. Figs. 3 and 4 represent the jaw in elevation and plan.
General Description.
Let A and B represent the two arms or 1evers of the wrench, being hinged together at b. F is apawl attached to projections E from the lever B. The arm A has at its endaboss, O, projecting from both sides. These bosses are so fitted that the detachable jaw G, Figs. 3 and 4, may be connected to them, it being forked for the purpose, as shown in Fig.4, the bosses U acting as a pivot upon which the jaw swings. The jaw G has upon its back a series of notches, K, into which the pawl F fits, so that upon working the arm B the pawl will act upon the jaw, and thus close it upon the pipe to be acted upon. D is the inner'or buttress-jaw, and is pivoted, as shown, to the arm A.
In practice, I make a number of jaws, G and D, of ditferent sizes for each wrench, so that the wrench may be applied to all sized pipes.
Witnesses:
WILLIAM EDSON, FRANK G. PARKER.
US136350D Improvement in pipe-wrenches Expired - Lifetime US136350A (en)

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