US1468211A - Combined pipe and nut wrench - Google Patents

Description

Sept. 18 1923.

J. QUIST COMBINED PIPE AND NUT WRENCH Filed Oct. 5. 1922- 1 1 .1 {IN-Jim Patented Sept. 18, 1923.

W m S; ef t meant JOHN curse, on :ms swa; A smno crown-HA F 'ro cnannns BERRY, or

I COMBINED. rrrnnnn Nor aam j Application filed ctober 5, 1922. Serial no. 592,5 7.

i T 0 all whom it may concern:

Be it known that 1, JOHN Qursr, a citizen of the United States, residing at Mystic, 1n the county of'App-anoose and State of Iowa,

have invented certain new and useful Im--.

provements in Combined Pipe and Nut Wrenches; and I do 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.

My invention relates to improvements 1n wrenches and more particularly to those of the type in which the movable jaw is forced tightly toward the fixed jaw under the influence of the handle, when the wrench is 1n use, the object being to provide an extremely simple and inexpensive, yet a highly etliclent and reliable wrench of this character.

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

Figure 1 is a perspective View of a wrench constructed in accordance with my invention,

Fig, 2 is a longitudinal sectional view through the front end portion of the wrench,

Figs. 3 and 4 are perspective views show ing the fixed jaw body and the movable jaw respectively,

Fig. 5 is a perspective view of the operating dog for the movable j aw, and I Fig. 6 is a perspective viewv of the bifurcated front end of the handle.

In the drawing above briefly described, the numeral 1 designates an elongated fixed jaw 'body having a forwardly extending fixed j aw 2 at one end and a rearwardly extending lug 3 at its other end, said lug being preferably of less width than the body while the latter and the jaw 2 may well be of uniform width. A guide opening 4 is formed in the body 1 from end to end and opens also throughthe rearside of the body as indicated at 5 and through the front side thereof as shown. at 6. This guide opening slidably receives the shank 7 of a movable jaw 8 which is parallel with the jaw 2. The rear edge of the shank 7 i is provided with suitable teeth 9 engaged by a dog 10 whose front end is received within the portion 5 of the guide opening. The numeral 11 designates a suitable elongated handle having a bifurcated front end whose furcations straddle the lug 3- and'are pivoted theretoas indicated at 12. The rear. end of the dog 10 is'received also in the bi furcated front end of. the handle 11 and is pivoted thereto as shown at 13. This dog is provided, immediately behind the body-1, with a transverse head 14 which is preferably of cylindrical form with concave ends 15 which may readily be gripped between the thumb and forefinger for the purpose ,of' releasing the dog when it is desired to in"- crease the distance between the jaws 2 and 8. If desired, the head 14 may have a longitudinal bore 16 therethrough and the nu- Y meral 17 designates a recess in the rear side of said head. This recess receives'the rerear end is secured by a screw or the like 20 in a shallow recess 21 formed in the back edge of'thehandle 11.. This spring nor-. mally holdsthe dog in engagement with theteeth 9 but permits retraction of said dog whenever necessary. a. I.

The shape of the teethl9 is such that it is simply necessaryto press the jaw 8 towards the jaw 2 in order to properly engage both jaws with the pipe, nut, or other object to V be turned,.whereupon the dog will click over the teethuntil the proper adjustment has been made. Then by forcing the handle in the proper direction, the oblique dog 10 thrusts upon the shank 7 of the jaw 8 in such a manner as to cause this j aw'to tightly grip the work. It will be seen that the gripping action increases with the amount of force applied to the handle and hence that there is no danger of the jaws slipping. r If desired, the sides of the body may be formed with openings'22 through which the frontend of the dog 10 and theteeth 9 may be viewed, so that it may readily be seen when they are properly engaged with each. other.

As excellent results have been obtained which opensalso through the front and rear a shank slidable in said 'gliide'openingiand a edges of said body, a mov-ablejayv liaxiing rear end pivoted to said handle at apoint spaced laterally from the handle vpivot, said dog extending obliquely to the shank and engaging the teeth thelzeoif. o,

2. A wrench comprising a fixed jaw body having a forwardly extending iwoljk-engaging jaw at one end and a rearwardly extending lug at its other end, said ".body having a guide opening from end to end' z whieh pee ls e hzfi awe men edges of esaidibody, a inoizableffljawthaving ,a shank .oslidable said guide opening and provided -YlP F QQ Q's-tit reare d ma eeadlehmia a' ...b,1 fnr 9ated front end Straddling and pivoted to said rearwardly extending lug, and a dog l aying its rear end pivoted betweenthe handle 'fureations, said dog extend- ;ing.tobliquelyntoqthe ghank through the open? ing at the rear side of the body and engagingthe teeth ofrsa-id-ishank.

In teetimony whereof 51 aha-ave helteunto afiixedgmy Signature.

JQHNI Quit-s53.

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