US737199A - Wrench. - Google Patents

Description

No. 737,199. PATENTED AUG. 25, 1903.

C. E. BONNER.

WRENCH.

APPLICATION PILED MAY 5, 1903.

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Patented August Q5, 1903.

. PATENT OFFICE.

CLA ENCE E. BONNER, or CHERRYPOINT, ILLINOIS.

WRENCH.,

SPECIFICATION forming part of Letters Patent No. 737,199, dated August 25,1903.

Application filed May 5, 1903. Serial No.'155,,712. (N5 model.)

[0 all whom it may concern.-

Be it known that I, OLARENoE E. BONNER, a citizen of the United States, residing at Oherrypoint, in the county of Edgar and State of Illinois, have invented certain new and useful Improvements in renches, of which the following is a specification.

This invention has special-reference to improvements in pipe-wrenches and the object of the invention is'to provide a strong, cheaplyconstructed as to cost, and simple wrench which may be easily and quickly adjusted and which will not grip the pipe under heavy strain so as to crush the pipe.

The principal object of this invention is to provide a compact and convenientmeans for adjusting a movable jaw of the wrench.

I accomplish the objects by the mechanism illustrated in the accompanying drawings, in which- I I I Figure 1 is a side view of my complete wrench; Fig. 2, a View of the back of the wrench; Fig. 3, ajfront view with the lower portion of the handle removed, and Fig. 4 a detail of the head of the wrenchin partial section.

Like characters of reference indicate like parts throughout the several views of the drawings.

In the drawings, 5 is a stationary jaw, and 6 the shank of said jaw, which is of any desired length to form a handle which will atford the required leverage for operating the wrench. The jaw is serrated, as shown at 7, and the shank is provided with theteeth 8.

9 is a holder, open at its edge toward the front of the wrench, in which the wrenchshank is located. It has arm extensions 10 which are connected by a loop 10, having an inside socket, as shown in Fig. 4C.

11 is an adjustable jaw, having lateral pins 12, by which the jaw is pivotally secured to the sides of the holder 9, the said jaw being placed between said sides, with the pins 12 taking into. suitable openings therein, as shown. The jaw 11 also has the lateral pins 13, which are inserted in slots 14, formed in the sides of the holder. The end of jaw 11 next to jaw 5 is serrated at 15, and its edge adjacent to the shank 6, at the lower end of the jaw, is provided with teeth 16, which arev adapted to engage the teeth 8 of the shank by the action of a spring 17, seated in the socket in loop 10. A shoe 18 will be interposed between the inner end of the spring 17 and shank 6. This shoe has a post 19, which takes into the socket in loop 10 to prevent the displacement of the shoe, and the post has a socket in which the spring 17 is seated, as clearly shown in Fig. 4. By pressing on the outer face of the loop 10, as with the thumb or finger of the person using the wrench, the spring 1'7 'will be compressed, and the holder, of which the loop is an integral portion, will be moved so as to carry the toothed. end of jaw 11 out of engagement with the teeth S of shank 6.

20 is a stop to limit the outward movement of jaw 5 and its holder on shank 6.

The adjustable jaw 11 has a spring'2l, here shown as a spiral spring, but which might be aflat spring, interposed between saidjaw and theshank 6 to press the jaw normally away from said shank.

Having thus fully described my invention, what I claim as new, and wish to secure by LettersPatent, is

1. The combination with a toothed shank having a stationary jaw, of a holder, a movable jaw pivoted to the holder and having of the shank, said movable jaw also having pins which enter slots in the holder, a spring between the shank and the movable .jaw,a

spring on the opposite edge of" the shankfrom the movable jaw between said shank and the holder to movethe holder so the teeth of said movable jaw are brought into engagement with the teeth of the shank.

2. The combination with a toothed shank having a stationary jaw, of a holder, a movable jaw pivoted to the holder and having teeth opposite the pivot to'engage' the teeth of the shank, said movable jaw also having 9 f teeth opposite the pivot to engage the teeth pins which enter slots in the holder, a spring between the shank and the movable jaw, a spring on the opposite edge of the shank from said movable jaw bearing against the holder to move the latter into engagement with the teeth of the shank, and a shoe between the spring and the shank.

3. The combination with a toothed shank having a stationary jaw, of a holder having an outer extension or loop, said loop having an inside socket, a movable jaw pivoted to and within the holder having teeth opposite the pivot to engage the teeth of the shank, said movable jaw also having pins which CLARENCE E. BONNER.

\Vitnesses:

WILLIAM S. BONNER, JOSEPH A. MINTURN.

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