US177100A - Improvement in pipe-tongs - Google Patents

Improvement in pipe-tongs Download PDF

Info

Publication number
US177100A
US177100A US177100DA US177100A US 177100 A US177100 A US 177100A US 177100D A US177100D A US 177100DA US 177100 A US177100 A US 177100A
Authority
US
United States
Prior art keywords
tongs
pipe
improvement
pivoted
curry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US177100A publication Critical patent/US177100A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle

Definitions

  • Figure 1 is a side view of my improved tool.
  • Fig. 2 is a cross-section of the same, taken through the line a: m, Fig. 1.
  • the object of this invention is to furnish an improved instrument for turning pipes, bolts, nuts, and similar things, which shall be simple in construction and convenient and effective in use, being so constructed as to adjust itself to the object to be turned whatever be its shape, and whatever be its size, within reasonable limits.
  • the invention consists in the combination of the handle, the pivoted hook, and the two scmi-cylimlrical pivoted jaws with each other, as hereinafter fully described.
  • A is the handle of the instrument, upon the forward end of which is formed a cross-head.
  • One end of this cross-head is rounded off, and in it is formed a groove to receive a tenon formed upon the inner end of the curved bar or hook B, which is pivoted in place by a pin.
  • the forward side of the other end of the crosshead is concaved, and upon it is formed a tenon to enter a groove in the convex side of the semi-cylindrical jaw O, which is pivoted in place by a pin.
  • the inner side of the outer end of the hook B is eoncaved, and upon it is formed a tenon to enter a groove in the couvex side of the semi-cylindrical jaw D, which is pivoted in place by a pin.
  • the jaws O D have thus sufficient play to adjust themselves to the object to be grasped.
  • Thefaces of the jaws O D are slightly eoncaved, and are toothed or roughened to cause them to grasp the objects to be turned more firmly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Table Equipment (AREA)

Description

G. CURRY.
PIPE-TONGS. No.177,100. ratiented my 9.1 876.
wrmssse's: mvmon:
NPETERSI PNWO-LITNOGRAPMER, WASHINGTON D. C.
UNITED S're'rns ATENT Qrrrou.
GEORGE M. CURRY, OF ST. PETERSBURG, PENNSYLVANIA.
IMPROVEMENT IN PlPE-TDNGS.
Specification forming part of Letters Patent No. 177,100, dated May 9, 1876 application filed January 7, 1876.
To all whom 2t may concern:
Be it known that I, GEORGE M. CURRY, of St. Petersburg, in the county of Clarion and State of Pennsylvania, have invented a new and useful Improvement in Pipe-Tongs, of which the following is a specification:
Figure 1 is a side view of my improved tool. Fig. 2 is a cross-section of the same, taken through the line a: m, Fig. 1.
Similar letters of reference indicate corresponding parts.
The object of this invention is to furnish an improved instrument for turning pipes, bolts, nuts, and similar things, which shall be simple in construction and convenient and effective in use, being so constructed as to adjust itself to the object to be turned whatever be its shape, and whatever be its size, within reasonable limits.
The invention consists in the combination of the handle, the pivoted hook, and the two scmi-cylimlrical pivoted jaws with each other, as hereinafter fully described.
A is the handle of the instrument, upon the forward end of which is formed a cross-head. One end of this cross-head is rounded off, and in it is formed a groove to receive a tenon formed upon the inner end of the curved bar or hook B, which is pivoted in place by a pin. The forward side of the other end of the crosshead is concaved, and upon it is formed a tenon to enter a groove in the convex side of the semi-cylindrical jaw O, which is pivoted in place by a pin. The inner side of the outer end of the hook B is eoncaved, and upon it is formed a tenon to enter a groove in the couvex side of the semi-cylindrical jaw D, which is pivoted in place by a pin. The jaws O D have thus sufficient play to adjust themselves to the object to be grasped. Thefaces of the jaws O D are slightly eoncaved, and are toothed or roughened to cause them to grasp the objects to be turned more firmly.
Having thus described my invent-ion, I claim as new and desire to secure by Letters Patent The combination of the handle A, the pivoted hook B, and the semi-cylindrical pivoted jaws 0 D with each other, substantially as herein shown and described.
GEORGE M. CURRY.
Witnesses:
D. S. HERRON, H. J. HAMMOND.
US177100D Improvement in pipe-tongs Expired - Lifetime US177100A (en)

Publications (1)

Publication Number Publication Date
US177100A true US177100A (en) 1876-05-09

Family

ID=2246507

Family Applications (1)

Application Number Title Priority Date Filing Date
US177100D Expired - Lifetime US177100A (en) Improvement in pipe-tongs

Country Status (1)

Country Link
US (1) US177100A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526167A (en) * 1948-04-26 1950-10-17 John M Henry Slidable jaw pipe wrench
US2570991A (en) * 1948-12-16 1951-10-09 Cromna Company Self-adjusting wrench for nuts or like polygonal objects
US2647425A (en) * 1947-10-30 1953-08-04 Cromna Company Self-adjusting wrench for nuts and like polygonal objects
US4763393A (en) * 1987-05-13 1988-08-16 Gee Elmer M Heating duct assembly tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647425A (en) * 1947-10-30 1953-08-04 Cromna Company Self-adjusting wrench for nuts and like polygonal objects
US2526167A (en) * 1948-04-26 1950-10-17 John M Henry Slidable jaw pipe wrench
US2570991A (en) * 1948-12-16 1951-10-09 Cromna Company Self-adjusting wrench for nuts or like polygonal objects
US4763393A (en) * 1987-05-13 1988-08-16 Gee Elmer M Heating duct assembly tool

Similar Documents

Publication Publication Date Title
US174745A (en) Improvement in wrenches
US227768A (en) Pipe-wrench
US222295A (en) Improvement in bolt-extractors
US657512A (en) Ratchet-wrench.
US148656A (en) Improvement in devices for ringing swine
US207182A (en) Improvement in pipe-wrenches
US255853A (en) Wrench
US190523A (en) Improvement in pipe-tongs
US459733A (en) Wrench
US952261A (en) Wrench.
US411502A (en) Pipe-wrench
US343940A (en) Half to fbank pierce
US269072A (en) Pipe-wrench
US190959A (en) Improvement in wrenches
US504305A (en) Wrench
US777009A (en) Wrench.
US529624A (en) Wrench
US138161A (en) Improvement in pipe-tongs
US481168A (en) Combined vise
USRE6772E (en) Improvement in mop-heads
US187928A (en) Improvement in pipe-tongs
US173845A (en) Improvement in pipe-wrenches
US461032A (en) Charles miller
US289188A (en) Assigjstoe of one-half
US258673A (en) Wrench