US747170A - Pipe-tongs. - Google Patents

Pipe-tongs. Download PDF

Info

Publication number
US747170A
US747170A US16925103A US1903169251A US747170A US 747170 A US747170 A US 747170A US 16925103 A US16925103 A US 16925103A US 1903169251 A US1903169251 A US 1903169251A US 747170 A US747170 A US 747170A
Authority
US
United States
Prior art keywords
pipe
tongs
lever
jaw
chain
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
US16925103A
Inventor
Albert H Harmon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US16925103A priority Critical patent/US747170A/en
Application granted granted Critical
Publication of US747170A publication Critical patent/US747170A/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
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/52—Chain or strap wrenches

Definitions

  • This invention relates to certain new and useful improvements in pipe'tongs; and the primary object of the invention is to construct tongs for use in connection with gripping of pipe in a manner whereby a firmer and more secure grip may be obtained on the pipe whereby to hold the same for any desired purpose.
  • My improved tongs relate to that type in which a flexible strap is employed for encircling the pipe to be gripped; and my improvement primarily consists in attaching this flexible strap, whether it be of a chain or other form, direct to the end of the lever-handle and providing a movable jaw with a grippingsurface to engage the pipe and also with means for securing the flexible strap or chain thereto.
  • FIG. 1 is a side elevation of my improved pipe-tongs in position on a pipe, showing in dotted lines the mannerin which the flexible strap is drawn into engagement with the pipe, the lever-handle being partly broken away.
  • Fig. 2 is a top plan view of the tongs in position on a pipe, the handle being partly broken away.
  • Fig. 3 is an end view of the movable jaw.
  • Fig. 4 is a central vertical sectional view of the same.
  • I provide a suitable lever-handle l of a suitable length and size, to the inner end 2 of which I pivotally secure the flexible strap or chain 3.
  • This strap or chain may be of any desired or approved form, though in practice I have generally employed the form of double side links chain, the pivots t of the links being extended beyond the sides of' the links, whereby to form afastening means to engage in the notches 5, provided therefor in the side walls of the grooves 6 made in the upper face of the movable jaw 7.
  • This movable jaw is bifurcated at its lower end, and the two check-pieces 8 thus formed are pivotally secured to the leverhandle 1.
  • This jaw is provided with a toothed jaw-face 9, adapted to grip with the pipe 10', as shown in Fig. 1 of the drawings, and the cut-away portion 10 of the jaw is of sufiicient depth to allow the movement of the end 2 of the lever-handle therein, as seen in dotted lines in Fig. 1 of the drawings.
  • the top of the jaw? is so grooved that the pivot-pins of the links which lie beyond the notches 5 will be received between the side walls 6',
  • the wrench is placed on the pipe, as seen in Fig. 1 of the drawings, and it will be observed that as the leverhandle is forced downwardly the end of the same swings within the movable jaw and the strap or chain is drawn into firm binding engagement with the pipe, this connection also drawing the jaw 7 into a gripping engagement with the pipe to securely hold the same.
  • the swinging of the lever-handle within the jaw enables me to obtain a firm and sure grip on the pipe not obtainable ordinarily in wrenches of this type. Tlhereleasing of the pressure on the lever-handle releases the grip and permits the ready removal of the flexible strap or chain.
  • a pipe-tongs of the type set forth comprising a lever, a jaw pivoted to said lever to the rear of the front end thereof and having a cut-away portion within which said outer end of the lever may operate, said jaw having a head. at the upper end thereof extending beyond the outer end of the lever, and having its face serrated, the outer face of the head thereof upward into engagement with the being grooved and having notches formed in pipe. 10 the side walls formed. by said groove, and a In testimony whereof I affix my signature link-chain secured to the forward end of the in the presence of two witnesses.

Description

No. 747,170. PATENTED DEC. 15, 1903.
' A. H. HARMON.
PIPE TONGS.
PPPP IUATION FILED AUG. 12, 1903.
N 0 M 0 D E L.
UNT:
Patented December 15, 1903.
, it E CE ALBERT H. HARMON, OF SCIO, OHIO.
iPlPE TONGS.
SEPECIFICATION formingpart of Letters Patent No. 747,170, dated December 15, 1903.
Application filed August 12, 1903. $erial1lo. 169,251; (No model.)
To all whont it may concern.-
Be it known that I, ALBERT H. HARMON, a citizen of the United States of America, residing at Scio, in the county of Harrison and State of Ohio, have invented certain new and useful Improvements in Pipe-Tongs, of which the following is a specification, reference be inghad therein to the accompanying drawings.
This invention relates to certain new and useful improvements in pipe'tongs; and the primary object of the invention is to construct tongs for use in connection with gripping of pipe in a manner whereby a firmer and more secure grip may be obtained on the pipe whereby to hold the same for any desired purpose.
My improved tongs relate to that type in which a flexible strap is employed for encircling the pipe to be gripped; and my improvement primarily consists in attaching this flexible strap, whether it be of a chain or other form, direct to the end of the lever-handle and providing a movable jaw with a grippingsurface to engage the pipe and also with means for securing the flexible strap or chain thereto.
In describing the invention in detail reference is had to the accompanying drawings, forming a part of this specification, and
wherein like numerals of reference indicate like parts throughout the several views, in which- Figure 1 is a side elevation of my improved pipe-tongs in position on a pipe, showing in dotted lines the mannerin which the flexible strap is drawn into engagement with the pipe, the lever-handle being partly broken away. Fig. 2 is a top plan view of the tongs in position on a pipe, the handle being partly broken away. Fig. 3 is an end view of the movable jaw. Fig. 4 is a central vertical sectional view of the same.
To put my invention into practice, I provide a suitable lever-handle l of a suitable length and size, to the inner end 2 of which I pivotally secure the flexible strap or chain 3. This strap or chain, it will be apparent, may be of any desired or approved form, though in practice I have generally employed the form of double side links chain, the pivots t of the links being extended beyond the sides of' the links, whereby to form afastening means to engage in the notches 5, provided therefor in the side walls of the grooves 6 made in the upper face of the movable jaw 7. This movable jaw is bifurcated at its lower end, and the two check-pieces 8 thus formed are pivotally secured to the leverhandle 1. This jaw is provided with a toothed jaw-face 9, adapted to grip with the pipe 10', as shown in Fig. 1 of the drawings, and the cut-away portion 10 of the jaw is of sufiicient depth to allow the movement of the end 2 of the lever-handle therein, as seen in dotted lines in Fig. 1 of the drawings. The top of the jaw? is so grooved that the pivot-pins of the links which lie beyond the notches 5 will be received between the side walls 6',
enough of the notches 5 being provided in the ribs 7 on the inner face of the walls 6 to securely hold the strap or chain in engagement with the jaw.
The wrench is placed on the pipe, as seen in Fig. 1 of the drawings, and it will be observed that as the leverhandle is forced downwardly the end of the same swings within the movable jaw and the strap or chain is drawn into firm binding engagement with the pipe, this connection also drawing the jaw 7 into a gripping engagement with the pipe to securely hold the same. The swinging of the lever-handle within the jaw enables me to obtain a firm and sure grip on the pipe not obtainable ordinarily in wrenches of this type. Tlhereleasing of the pressure on the lever-handle releases the grip and permits the ready removal of the flexible strap or chain.
It will be'noted that various changes may be made in the details of construction without departing from, the general spirit of my invention.
Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-
A pipe-tongs of the type set forth comprising a lever, a jaw pivoted to said lever to the rear of the front end thereof and having a cut-away portion within which said outer end of the lever may operate, said jaw having a head. at the upper end thereof extending beyond the outer end of the lever, and having its face serrated, the outer face of the head thereof upward into engagement with the being grooved and having notches formed in pipe. 10 the side walls formed. by said groove, and a In testimony whereof I affix my signature link-chain secured to the forward end of the in the presence of two witnesses.
5 lever and having the pivot-pins thereoffe- ALBERT I-I. HARMON ceived in the said notches of the side walls of Witnesses: a said groove, said lever being operated down- GRACE HARMON,
wardly to bring the link pivoted to the end I ELLA v. HEARD.
US16925103A 1903-08-12 1903-08-12 Pipe-tongs. Expired - Lifetime US747170A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16925103A US747170A (en) 1903-08-12 1903-08-12 Pipe-tongs.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16925103A US747170A (en) 1903-08-12 1903-08-12 Pipe-tongs.

Publications (1)

Publication Number Publication Date
US747170A true US747170A (en) 1903-12-15

Family

ID=2815665

Family Applications (1)

Application Number Title Priority Date Filing Date
US16925103A Expired - Lifetime US747170A (en) 1903-08-12 1903-08-12 Pipe-tongs.

Country Status (1)

Country Link
US (1) US747170A (en)

Similar Documents

Publication Publication Date Title
US747170A (en) Pipe-tongs.
US1093496A (en) Pipe-wrench.
US385595A (en) Pipe-wrench
US389666A (en) Pipe-wrench
US966182A (en) Pipe-wrench.
US705742A (en) Pipe-wrench.
US714364A (en) Automatic grip-wrench.
US278264A (en) Pipe-tongs
US632555A (en) Wrench for well-drilling tools.
US1077591A (en) Pipe-wrench.
US810738A (en) Pipe-wrench.
US678809A (en) Pipe-wrench.
US1001596A (en) Wrench.
US684446A (en) Pipe-wrench.
US777009A (en) Wrench.
US1003247A (en) Wrench.
US1115215A (en) Tongs.
US609762A (en) Logan w
US738216A (en) Pipe-wrench.
US1215640A (en) Wrench.
US493737A (en) Pipe-wrench
US579053A (en) Pipe-wrench
US791651A (en) Wrench.
US974019A (en) Pipe-wrench.
US511155A (en) Pipe-wrench