US136351A - Improvement in self-adjusting pipe-wrenches - Google Patents

Improvement in self-adjusting pipe-wrenches Download PDF

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Publication number
US136351A
US136351A US136351DA US136351A US 136351 A US136351 A US 136351A US 136351D A US136351D A US 136351DA US 136351 A US136351 A US 136351A
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Prior art keywords
self
wrenches
improvement
jaw
adjusting pipe
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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
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable

Definitions

  • The'nature of my invention consists in com.- bining in a wrench a fixed jaw having a convex toothed bearing-surface with acorresponding eccentrically-moving concaved jaw, the moving jaw being so pivoted to the fixed jaw that, when the wrench is applied, the tendency is for the movable jaw to swing toward the fixed one, and thus grasp the intervening object.
  • the moving jaw is also combined with a spring so as to be impelled toward the fixed aw.
  • Figure 1 is an elevation of my invention.
  • Fig. 2 1 s a section of the same.
  • the spring F may be dispensed with, and a lever to be moved by hand sub stituted for it.

Description

T. WILLIAMS.
Self-Adjusting Pipe-Wrenches.
WITNESSES. INVENTOR. I
I Patented Feb. 25,1873
UNITED STATES PATENT OFFICE.
TURNER WILLIAMS, OF PROVIDENCE, RHODE ISLAND.
IMPROVEMENT IN SELF-ADJUSTING PlPE-WRENCHES.
Specification forming part of Letters Patent No. 136,351, dated FebruaryQS, 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 Improved Self-Adjusting Wrench, of which the following is a specification:
The N atme of the Invention.
The'nature of my invention consists in com.- bining in a wrench a fixed jaw having a convex toothed bearing-surface with acorresponding eccentrically-moving concaved jaw, the moving jaw being so pivoted to the fixed jaw that, when the wrench is applied, the tendency is for the movable jaw to swing toward the fixed one, and thus grasp the intervening object. The moving jaw is also combined with a spring so as to be impelled toward the fixed aw.
By this arrangement of a swing scroll-jaw no adjustment is required, as the wrench may be applied to any pipe or bolt within its ran ge,- and will grasp the same automatically.
Description of the Drawing.
Figure 1 is an elevation of my invention. Fig. 2 1s a section of the same.
General Description.
spring, which acts through the block E upon the back of the movable jaw, and serves to close it upon the fixed jaw.
If desirable, the spring F may be dispensed with, and a lever to be moved by hand sub stituted for it.
I claim as my invention-- The combination of the jaw D, the block or tumbler E, and spring F with the fixed jaw B, operating substantially as described, and for the purpose set forth.
TURNER WILLIAMS.
Witnesses V FRANK G. PARKER,
H. FLOYD FAULKNER.
US136351D Improvement in self-adjusting pipe-wrenches Expired - Lifetime US136351A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030031017A1 (en) * 2001-07-27 2003-02-13 Toshihiko Tsuji Illumination system, projection exposure apparatus and device manufacturing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030031017A1 (en) * 2001-07-27 2003-02-13 Toshihiko Tsuji Illumination system, projection exposure apparatus and device manufacturing method

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