US1182829A - Pipe-wrench. - Google Patents

Description

E. L. WiSHON & L. C. PEASLEY.

PIPE WRENCH.

APPLICATION FILED SEP1 '.19,1914.

Patented May 9,1916.

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THE COLUMBIA PLANOURAPH co., WASHINGTON, D. c.

UNTTE STATES FATE? @Fhlifihl.

ENIA L. WISHON AND LOUIS C. PEASLEY, OF ST. LOUIS, MISSOURI.

PIPE-WRENCH.

Specification of Letters Patent.

Patented May 9, 1916.

To all whom 2'2? may concern Be it known that we, ENIA L. \VIsHoN and LOUIS C. PEASLEY, citizens of the United States, residing at St. Louis, State of Missouri, have invented certain new and use ful Improvements in Pipe-Trenches; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in wrenches especially designed for turning pipes and similar cylindrical objects.

Another object is the provision of a wrench embodying means whereby the movable jaw may be adjusted with ease and is reliably held in adjusted position.

With these and other objects in view, the invention consists in the novel construction, arrangement and formation of parts as will be hereinafter specifically described, claimed and illustrated in the accompanying drawing, in which:

Figure 1 represents a side elevation of the wrench, partly broken away. Fig. 2 represents a fragmental detail, in side elevation, of the wrench, and Fig. 3 represents a trans verse sectional view on the line 3-3 of Fig. 2.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 5 indicates a suitable handle having a series of teeth 6 formed on one of'the longitudinal edges thereof and a relatively stationary jaw 7 formed at the end and having an apertured extension 5. The shank 9 of an adjustable jaw 10 is slidable longitudinally through the aperture in the extension 8 of the jaw 7, and is permitted limited rocking movement upon the corner 11 of one of the walls of the aperture. The free end of the shank 9 carries a pair of laterally projecting ears 12 engaged against the opposite side faces of the handle 5 and having slots 13 formed in the ends thereof. A U-shaped member 14 incloses the free extremity of the shank 9 and the parallel ends thereof engage over the laterally projecting ears 12. A screw 15 connects the free ends of the U-shaped member 14 and is slidably received within the slots 13. A spring 16 is secured to the inner edge of the shank 9 and is engaged at its free end against the edge of the handle 5 for normally retaining the free extremity of the shank 9 in spaced relation to said handle. A second spring 17 is secured to the outer edge of the shank 9 and the free extremity thereof is engaged against the web portion of the U-shaped member 14 for normally retaining said web portion in spaced relation to the free extremity of said shank. The spring 16 interposed between the handle 5 and shank 9 is considerably strongei than the spring 17 and normally retains the latter partially compressed. The web portion of the U-shaped member 14 is enlarged to inclose the free end portion of the spring 17. A block 18 is pivotally secured to the free end of the shank 9 by a screw or equivalent means 19 for locking the shank against removal from the U-shaped member 14.

In use, the springs 16 and 17 exert pressure upon the shank 9 and U-shaped member 14 and normally retain the screw 15 in locked engagement between the teeth 6, thus rigidly locking the adjustable jaw 10 against movement relative to the stationary jaw 7. The adjustable jaw 10 is permitted the desired rocking movement upon the point 11 without releasing the screw 15 from the teeth 6 as the slots 13 permit relative movement of the ears 12 and the screw 15.

What we claim is:

A wrench comprising a handle, a plurality of teeth on said handle, a jaw fixed to one end of said handle, an apertured extension on said-jaw having an inclined wall defining a fulcrum point, an adjustable jaw, a shank carried by said adjustable jaw slidably mounted in said apertured extension and movable on said fulcrum point, a pair of ears carried by the free end of said shank engaging the side faces of said handle and having elongated slots in the free ends thereof, a U-shaped member partially inclosing and loosely mounted upon the free end of said shank and engaging over said cars, a screw secured in the parallel ends of said U-shaped member, slidably received within said slots and engaged with said teeth, a spring arranged between the free end of said shank and the adj acent portion of said handle normally retaining said screw in engagement with said teeth, a second spring arranged between the web portion of said U-shaped member and the free end of said shank for retaining the screw in engagement with the teeth when the first-mentioned spring is compressed by inward movement of said shank, and a block pivotaily secured to the free end of said shank removably securing said U-shaped member in position thereon.

In testimony whereof We aflix our signatures 1n presence of tWo wltnesses.

ENIA L. WISHON.

LOUIS o. PEASLEY.

Htnesses DOMINICK L. ZERBA, COMENICQ ZIANINO.

Gapies of this patent may be obtained for five cents each,-by addressing the Commissioner of Patents, Washington, D. C.

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