US810738A - Pipe-wrench. - Google Patents

Pipe-wrench. Download PDF

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Publication number
US810738A
US810738A US27676205A US1905276762A US810738A US 810738 A US810738 A US 810738A US 27676205 A US27676205 A US 27676205A US 1905276762 A US1905276762 A US 1905276762A US 810738 A US810738 A US 810738A
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Prior art keywords
pipe
wrench
plates
gripping
grip
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Expired - Lifetime
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US27676205A
Inventor
Stephen A Fesler
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Stephen A Fesler
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Priority to US27676205A priority Critical patent/US810738A/en
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Publication of US810738A publication Critical patent/US810738A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • B25B13/50Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/52Chain or strap wrenches

Description

No. 810,738. PATENTED JAN. 23, 1906.
s. A. FBSLER. PIPE WRENCH.
APPLICATION FILED SEPT.1, 1905.
UYTNESSES: 4 INVENTOR.
ATTORNEY.
. being to UNITED STATES STEPHEN A. FESLER, OF
CUPERTINO, CALIFORNIA.
PIPE-WRENCH- Application filed September Specification of Letters Patent.
Patented Jan. 23, 1906.
1,1905. Serial No. 276,762.
To all whom it may concern.-
Be it known that I, STEPHEN A. FESLER, a citizen of the United States, residing at Cupertino, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Pipe- Wrenches, of which the following is a specification.
This invention relates to improvements in pipe-wrenches, the object of the invention provide a wrench of this character which will afiord a firm grip upon the pipe, and by means of which the pipe can be gripped automatically to be turned in either direction by merely reversing the direction of pressure on the handle of the wrench.
In using pipe-wrenches it is frequently the case that after screwing up the pipe in position it is found that the pipe has been screwed a little too far and it is necessary to unscrew it slightly to adjust the pipe accurately to the desired position.
It is the object of the present invention to provide a pipe-wrench adjustable to any size of pipe by which the operator can thus unscrew the pipe again without removing the wrench from its position on the pipe and by a mere reversal of the direction of pressure.
In the accompanying drawings, Figure 1 is a front elevation of the pipe-wrench, the chain being extended. Fig. 2 is a broken side view ofthe wrench, showing in end view a pipe to which the wrench is applied. Fig. 3 is a similar view showing the parts in the position in which the wrench is being applied in the opposite direction.
Referring to the drawings, 1 indicates the handle of the wrench, which at the working end is forked. Upon the members 2 3 of said forked end are pivotally secured pairs of gripping-plates 4 5, the inner edges of which are concavely curved to fit closely against the surface of the pipe and are formed with teeth 7, extending obliquely across said edges the better to grip the pipe. Between the plates 4, pivoted to one member 2 of the fork, is pivotally secured the end of a chain 8, the
ins 9 of which extend beyond the sides of the links of the chain. These extended ends are adapted to enter recesses 10, formed in the outer edges of the other pair 5 of the gripping-plates, which thus constitute hooks for holding said chain around the pipe. By properly selecting the pin which is inserted into said recesses or hooks the chain may be arranged to fit closely around a pipe of any desired diameter. For greater strength the two gripping-plates 5 are secured together by a bar 11. If now the chain is secured in of its pins entering the recesses 10, formed in the plates 5, and if the pressure is applied in one angular direction upon the handle of the wrench, then, as shown in Fig. 2, the teeth of the pair of gripping-plates 4 will firmly grip the pipe, while the short surface 12 of the other gripping-plates 5 will bear upon the surface of the ipe, thus furnishing for the wrench a power 1 grip upon the pipe. If now the direction of pressure be reversed, then, as shown in Fig. 3, the teeth of the pair of gri ping-plates 5 will grip the pipe while t e short surface 13 of the first pair 4 will bear upon the pipe, and thus an e ually powerful grip will be furnished. It wil thus be seen that to turn the pipe in either direction all all that is necessary is to reverse the pressure upon the handle, whereupon the grip upon the pipe will be automatically changed to correspond with the new direction in which the pipe is to be turned.
I claim- A pipe-wrench comprising a handle having a forked end, gripping-plates pivoted to the respective members of the fork, each plate having a concaved serrated gripping-surface adapted to grip the pipe, and, beyond said gripping-surface or remote from the pivot thereof, a portion adapted to rest upon the surface of the pipe when the gri ping-surface of the opposite plate grips the p ate, substantially as described.
In witness whereof Ihave hereunto set my hand in the presence of two subscribing witnesses.
STEPHEN A. FESLER.
Witnesses FRANCIS M. WRIGHT, Bnssrn GORFINKEL.
position around the pipe, with the ends of one
US27676205A 1905-09-01 1905-09-01 Pipe-wrench. Expired - Lifetime US810738A (en)

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US27676205A US810738A (en) 1905-09-01 1905-09-01 Pipe-wrench.

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US27676205A US810738A (en) 1905-09-01 1905-09-01 Pipe-wrench.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921489A (en) * 1957-03-18 1960-01-19 Standard Oil Co Chain-type pipe wrench
US3373637A (en) * 1966-01-14 1968-03-19 Collins Machinery Corp Multiple purpose portable rotary drive unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921489A (en) * 1957-03-18 1960-01-19 Standard Oil Co Chain-type pipe wrench
US3373637A (en) * 1966-01-14 1968-03-19 Collins Machinery Corp Multiple purpose portable rotary drive unit

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