US881713A - Combination tool-wrench. - Google Patents

Description

l ve-881,711).

. PATENTED MAR. 10,1908. A. 'PARTIN. I COMBINATION 001, WRENCH.

APPLICATION FILED MAY 11,1967.

PIC,

ALBERT PARTIN, OF COOKE, MONTANA.

COMBINATION TOOL-WRENCH.

Specification of Letters Patent.

Patented March 10, 1908.

Application filed May 11, 1907. Serial No. 373,083.

To all whom it may concern:

Be it known that I, ALBERT PARTIN, a citizen of the United States, residing at Cooke, in the county of Park and State of Montana,

5 have invented new and useful Improvements in Combination Tool-Wrenches, of which the following is a specification.

This invention relates to a wrench and more particularly to a combination tool, adapted for use as a pipe or nut wrench, screw-driver, hammer and nail pull.

The invention has for one of its objects to improve and simplify the constructionand operation of devices of this character so as to be comparatively easy and inexpensive to manufacture, convenient to manipulate and handy for a large variety of uses.

A further object of the invention is the provision of a wrench having a movable jaw provided with a shank, feathered in the hollow shank of the fixed j aw and provided with co-acting pawls or dogs engaging racks for permitting of a quick adjustment of the movable jaw with respect to the fixed jaw.

Another object is the employment of a gripping plate on the fixed jaw that serves as a key for preventing the movable jaw from turning and which is itself retained in position by the shank of the movable jaw passing therethrough.

With these objects in view and others, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of arts, which will be more fully described hereinafter and set forth with particularity in the appended claims.

In the accompanying drawing which illustrates certain of the embodiments of the invention:Figure 1 is a central, vertical, longitudinal section of the combination tool wrench, especially adapted for removing and a plying nuts. Fig. 2 is a rearelevation of t ejawportion thereof. Fig.3isatransverse section on line 33 of Fig. 1. Fig. 4 is a central, vertical section of a modified form of the wrench, intended more particularly for gripping pipes.

imilar characters of reference are employed to designate similar parts throughout the several views.

Referring to the drawing, 1 designates ais formed oppositely extendin beveled jaws 2. The bore 3 is of a large iameter at its upper portion, and longitudinally movable in the body 1 is a rod-like shank 4 of the movable double jaw 5. ofthe shank 4 is enlarged at 6 to engage in the enlarged portion of the bore 3 and the enlarged part 6 is provided with a plurality of longitudinally extending V-shaped grooves 7 that form key ways. The fixed jaws 2 are faced by a hard metal plate 8, which can be readily removed when worn and a new one substituted. This plate has a central opening 9 through which the shank of the movable jaw passes and the edge of the opening is provided with a plurality of angularly spaced V-shaped projections 10 that engage in the groove 7 to constitute keys for preventing the movable jaw from turning without restricting its longitudinal movement. The bottom surface of the plate 8 has a dovetailed rib 11, extending longitudinally and centrally thereof for engaging in a correspondingly shaped groove 12 in the top faces of the fixed jaws 2. The facing plate 8 is assembled in position before the shank of the movable jaw has been inserted into the body 1, so that after the shank is inserted it acts as a retainer of the facing plate.

In order to hold the movable jaw of the wrench in the fixed or adjusted position, any suitable means may be provided. According to the form shown in Fig. 1, a locking means is provided, comprising a pair of oppositely disposed pawls or dogs 13 that are pivoted at 14 in a diametrical slot 15, provided in the enlargement 16 at the lower end of the body 1. These dogs are adapted to engage serrations or racks 17 on opposite sides of the rod or shank 4, that projects beyond the enlarged lower end 16 of the body and the dogs are normally held in engagement with the serrations or racks by leaf springs 18 suitably secured to the body 1, and bearing on the dogs. The dogs are provided with finger holds 19 suitably spaced apart so that the thumb or first finger of one hand can be engaged between them for moving the dogs outwardly against the tension of their springs for disengagement with their racks.

The lower extremity of the member 4 is shaped into a screw-driver blade 20, so that the tool may be used for driving or removing screws. When used for this purpose, the double ended movable jaw 5 is forced downwardly so that it will bear against plate 8 to enable the jaws to be used as a handle during The upper portion the operation of driving or removing the screws. The shape of the teeth 17 is such that the movable jaw can be readily pushed inwardly without the dogs interfering, since they slip freely over the teeth, but a pull in an outward direction is effectively resisted as long as the dogs are under the normal action of their springs. One extremity of the double ended movable jaw 5 is beveled, as indicated at 21 and has formed thereon a pair of spaced claws 22 for drawing nails. The opposite end of the jaw 5 has a fiat face 23 that serves as a hammer head for driving nails.

In the modification shown in Fig. 4, the wrench is constructed for the most part on the principle embodied in Fig. 1 except that the double ended movable jaw 24 has serrated gripping surfaces 25, while the facing plate 26 of the fixed aw is also provided with serrations 27, one set of serrations 27 being oppositely disposed from the opposed set of serrations 25, thereby rendering the wrench particularly useful for gripping pipes. If desired, only one set of serrations on each jaw may be employed while the remaining gripping surfaces are left smooth so that the tool can be used as a pair of pipe tongs or a wrench for nuts. In the modified form the dogs or pawls 28 are in the form of levers of the first order, fulcrumed at 29 with their lower ends 30 constituting grips which upon being pressed toward each other disengage the teeth 31 from the racks 17. The dogs are normally held in position by leaf springs 32.

From the foregoing description taken in connection with the accompanying drawing,

the advantages of construction and method of operation will be readily apparent to those skilled in the art to which the invention appertains and while I have described the principle of operation of the invention together with the device which I now consider to be the best embodiment thereof, I desire to have it understood that the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the claims.

What I claim, is

1. In a tool, the combination of a tubular shank, a rod-like shank, relatively movable jaws on the shanks, aplate having an opening for receiving the rod-like shank, means on the plate engaging the rod-like shank for preventing relative turning of the shanks, a

longitudinally extending dove-tail on the bottom side of the said plate serving to strengthen the latter and engaging in a correspondingly shaped groove of the movable jaw, and means for holding the shanks in adjusted position and for preventing the shanks from pulling apart longitudinally.

2. In a tool, the combination of a hollow body, a fixed jaw thereon, a longitudinally movable member in the said body, a jaw on the member, a removable plate forming the gripping face of the fixed jaw and arranged for preventing the said member from turning, and serrations on the said plate and movable jaws.

3. In a tool, the combination of a fixed jaw, a movable jaw, a hollow shank connected with the movable jaw, a shank on the fixed jaw movable in the hollow shank and provided with a longitudinal groove, a plate secured to the movable jaw and having a central opening for receiving the shank of the fixed jaw, a projection on the plate 011- gaging in the said groove for preventing turning of the shanks and permitting the shanks to be disconnected by a relative longitudinal movement, and means for adjustably connecting the shanks for holding the jaws at different adjustments and for preventing the shanks from being disconnected.

4. In a tool, the combination of a jaw, a plate thereon having an opening, means for slidably mounting the plate on the jaw, a second jaw, a shank for the second jaw passing through the opening for retaining the plate in )osition, and means between the plate an shank for preventing the latter from turning.

5. In a tool, the combination of a double ended jaw, a plate covering the same having an opening, means for slidably mounting the plate on the jaw, a second jaw, serrations thereon, serrations on the plate, a shank for the second jaw for movably relating the jaws and passing through the opening of the plate, and means between the plate and shank for preventing the latter from turning.

In testimony whereof, I allix my signature in presence of two witnesses.

ALBERT PARTIN.

itnesses W. A. BROWN, Tnos. HANLEN.

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