US1929133A

US1929133A - Wrench

Info

Publication number: US1929133A
Application number: US634061A
Authority: US
Inventors: James L Worth
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-09-20
Filing date: 1932-09-20
Publication date: 1933-10-03
Anticipated expiration: 1950-10-03

Description

WRENCH Filed sept. 2o, 1952 2 sheets-sheet 1 `/lllorney J. l.. WORTH 1,929,133

WRENCH Filed Sept. 20, 1932 Oct. 3, 1933.

2 Sheets-Sheet 2 By Attorney Patented Oct. 3, 1933 UNITED STATES WRENCH James L. Worth, Canyon City, Oreg.

Application September 20, 1932 Serial No. 634,061

1 Claim.

This invention appertains to new and useful improvements in tools and more particularly to a novel Wrench.

The principal object of this invention is to provide a wrench of the single` handle type and the principal object of the invention is to provide a wrench constructed in such a manner as to cause a pivoting of the handle when an object is being gripped, to the end that the jaws of the wrench will not slip oif of the object, thus eliminating not only bother, but injury to the hand in knocking against adjacent objects when working in close quarters.

Other important objects and advantages of the invention will become apparent to the reader of the following specification.

Figure 1 represents a side elevational view of the wrench.

Fig. 2 represents a top plan view of the wrench..

Fig. 3 represents a fragmentary longitudinal sectional view through the wrench. g

Fig. 4 represents a sectional view taken substantially on line 4-4 of Fig. 3.

Fig. 5 represents a front end elevational view of the wrench. Y

Fig. 6 represents a perspective view of the swingable jaw.

Refering to the drawings wherein like numerals designate like parts, numeral 5 represents the slidable jaw, while numeral 6 represents the swingable jaw, in contra-distinction to conventional wrenches which involve usually a stationary jaw and a slidable jaw.

In carrying out the present invention further, it can be seen that numeral 7 represents the handle which is bifurcated at its forward end as at 8 to receive the 'rectangular-shaped frame 9, the frame being swingably connected to the handle 7 at said bifurcated Yend by the pin 10.

The frame 9 adjacent the vbifurcated end of the handle 7 is provided with. a shoulder 11, while the crotch portion of the bifurcated end of the handle 7 is provided with a recess 12 for receiving one end portion of the Vcompressible coiled spring 13, the other end of the spring bearing against the aforementioned shoulder 11, for obviously maintaining the frame 9 in the position shown in Fig. 3. The leg portions of the furcations of the handle 7 are cut away as at 14 to receive the butt end of the aforementioned swingable jaw 6. As is clearly shown in Figs. 3 and 6, the jaw 6 is of substantially U-shape, the inner side of the bight portion being beveled as at 15 by engagement with the corresponding beveled portion of the frame 9, while the outer portion ofthe bight of the jaw 6 is beveled as The leg portions of the jaw 6 are provided with openings 17 for receiving the pin 18 passing through the upper portion of the frame 9 in the manner shown in Fig. 3.

Slidable through a longitudinal opening in the frame 9 is the rack 19 carrying the jaw 5 which is rigidly secured to the rack. A pin 20 extends into the frame and carries the worm 2l which is 'i mesh with the rack 19.

Now referring to the jaw 6, it can be seen that the same is recessed as at 22 while the corresponding portion of the frame 9 is recessed and projecting into these recessed portions-of the frame and jaw are the end portions of the compressible spring 23. v

It can now be seen in Fig. 1, that by swinging downwardly on the handle 7, with an object between the jaws 5 and 6, 'the extensions 24 on the biiurcated end of the handle 7 will ride up against the leg portions of the jaw 6 and rock the same inwardly into a more snug contact with the object between the jaws. In other words, with the conventional wrench, it is sometimes possible for the slidable jaw to yield permitting the wrench jaw to rotate on the object, but this is entirely eliminated with the use of the present tool, which allows the jaws to tighten all the more in response to pressure exerted on the handle 7.

Obviously the springs 13 and 23 serve to maintain the frame 9 and the jaw 6 respectively in a normal position for receiving an object.

While the foregoing specification sets forth the invention in specific terms7 it is to be underM stood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as vclaimed hereinafter.

Having thus described my invention, what I claim as new is:--

A wrench of the character described comprising a handle, a frame, a worm mounted in the frame for rotation, a` rack slidable on the frame, a head on one end of the frame, said worm meshing with and adapted to operate the said rack, said handle being pivotally secured to the frame, a slide jaw carried bythe rack, said head being beveled, a swingable jaw having a pair of side members, a pivotal connection between the swingable jaw and the head, abuttingable construction between the side members and the handle, said swingable jaw being beveled to engage with the beveled portion of the head, and a spring interposed between the beveled side portions of the head and swingable jaw.

JAMES L. WORTH.