US1617150A - Pipe wrench - Google Patents

Description

Patented Feb. 8, 1927.

ET E S JAMES PERRY FISHER, OF CEREDO, WEST.VIRGINIA.

PIPE WRENCH.

Application filed March 22, 1926, Serial No. 96,574, and in Canada April 5, 1924. l

My invention relates to improvements in pipe wrenches, and the'object thereof is to provide a simple and inexpensive device which may be successfully used for removing broken pipe ends from valves, couplings, and the like, two relatively adjustable lugs being provided for reception in the pipe end and one of said lugs being rotatably and eccentrically mounted to cause itrto tightly bind against the pipe when the wrench is turned.

WVith the foregoing in view, the invention resides in the novel subject-matter hereinafter described and claimed the description being supplemented by the accompanying p drawing. I

Fig. 1 is a partial side elevation of the wrench showing the manner of using the same;

Fig. 2 is a vertical sectional view partly in elevation;

Fig. 3 is a fragmentary edge view; and

Fig. 4 is a detail sectional view as indicated by line 4.-4 of Fig. 2.

In the drawing above briefly described, the numeral .1 designates an operating handle having a head 2 at one end whose upper portion 3 constitutes a jaw member. This jaw member preferably carries aslidably mounted jaw face 4: provided with teeth to engage the exterior of a pipe or the like.

Another jaw member 5 co-acts with the jaw member 3 and is preferably provided with teeth 6 opposed to the jaw face 4. I have shown a threaded shank 7' on the jaw mem her 5, passing through a guide 8 in the head 2 and provided with an adjusting nut 9 so that the distance between the twoj aw members may be adjusted as required.

The parts so far described may be of the construction shown or any other desired construction to provide suitable relatively adjustable carrying members for a pair of pro ectlng lugs 10 and 11 which are adapted for reception in-a pipe end. In Fig. 1, such a pipe end has been illustrated at 12, threaded into a valve'or coupling 13 and broken offevcn Withthe end of the latter,'making it impossible to use an ordinary pipe wrench for its removal. By inserting the lugs 10 and 11 and suitably adjusting the carrying members thereof, however, thepipe end may be easily removed from the valve or the like.

In the preferred form of construction, the 7 lug 10 is stationary and is provided with a sharp pipe-engaging edge lt. In the present showing, the inner end of this lug is propresent disclosure, the inner end of the lug I 11 is provided with an integral cylindrical head 18 which is eccentrically located with respect to the curved surface 17, said head being rotatably received in 'a cylindrical socket 19' formed in the jaw member 5. To retain the head 18 in the socket 19, said head is preferably formed with a peripheral groove 20 into which one or more retaining screws gr the like 21 extend from the jaw memer 5. a v

With the lug l1 turned to dispose .it as shown in Figs. 1, '2, and 3, the two lugs 11 and 10 are inserted into the pipe end to be removed, and the'jaw members 3 and 5 are maybe made. 7 Iclaim:

A wrench comprising a pair of connected relatively adjustable lug-carrying members,

vention as claimed, numerous minor changes 7 f a fixed and a movable lug projecting from said memb'ers for insertion in a pipe, the movable lug being formed with a transversely curved, longitudinally tapered, pe-

ripheral pipe-engaging surface, said mov--' able lug being provided at its inner end with an integral cylindrical head eccentrically J located with respectto the curved surface,

said headbeing adapted to be rotatably mounted in a cylindrical socket of its carryingmember, and means to hold said" head against longitudinal movement and yet permit'it to rotate.

In testimony whereof I have hereuntoaffixed my signature.

9 JAMES PERRY ISHER;

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