US1137942A - Wrench. - Google Patents

Description

0. AGNEW.

WRENCH.

APPLlCATlON FILED AUG. 14, I913,

Patented May 4, 1915.

run.- ugvol: PFTERS 60.. PHDTU-LITHQ, WASHINGTON. D. l,

TTTTE y 5 1 A a WRENCH.

Application filed August 14, 1913.

To all whom it may concern Be it known that I, OMER AGNEW, a citizen of the United States, residing in the city of Portland, county of Multnomah, and State of Oregon, have invented certain new and useful Improvements in Trenches, of which the following is a specification.

My invention relates to wrenches, and more particularly to certain improvements in the construction thereof whereby I am able to provide a wrench which can be quickly applied to the nut or other object upon which it is to be used, without the necessity of operatingthe usual screw for adjusting the movable jaw thereof.

Among the salient objects of the invention are,to provide a wrench in which it is possible to grip the movable jaw and move it in either direction upon the stem or body thereof; to provide in connection therewith, means whereby a limited adjustment between said movable jaw and the stem or body upon which it is mounted can be made, in order to take up any play or looseness which might exist after the application of the wrench to the object upon which it is being used; and, in general, to provide a simple, practical and cheaply constructed wrench, capable of embodiment in either a square jawed or pipe wrench.

In order that others may understand my invention, I have shown in the accompanying sheet of drawings, one practical embodiment thereof, which I will now describe.

Figure 1 is a side elevation of the wrench shown for illustrative purposes; Fig. 2 is a sectional view taken through the movable jaw, as if on line 2-2 of Fig. 3; Fig. 3 is a cross sectional view taken on line 33 of Fig. 1; and Fig. 4 is a sectional view taken through the movable jaw, as on line 4-4, of Fig. 1.

In the drawings, the wrench here shown for purposes of illustration, comprises a body or stem 1, with the usual head or fixed jaw 2, and a handle 3. Attached to said stem or body is a longitudinally extending rack or toothed member 4:, made adjustable longitudinally and to this end is provided with a screw head 5, set in the handle and screwed into the end of the stem 1, whereby the turning of said screw head 5 operates to move said rack or member 4: a short distance in either direction. The movement is about equal to the distance between two of the notches on said rack. Slidably mounted Specification of Letters Patent.

Patented May 4:, 1915.

Serial No. 784,733.

upon said stem or body is a movable jaw 6, movably seated in which is a dog 7, provided with teeth corresponding to the teeth of said rack, as clearly indicated in Fig. 2. This dog is normally held in engagement with the teeth of the rack 4 by means of a spring 8, within the movable jaw, as shown. Said dog is provided in its opposite sides with two indents having inclined or beveled surfaces, into which two press buttons or pins 9 fit, said buttons having enlarged inner ends, beveled to correspond with the inclined surfaces of the dog 7. Thus when said buttons are pressed together, or toward each other, they operate, because of the engagen'ient of the beveled ends of the buttons upon the dog, to move said dog outwardly away from the rack so as to disengage the teeth of the dog and those of the rack, thus making it possible to move the movable jaw 6 in either direction. When the buttons 99 are released, the spring 8 operates to move said dog back into holding engagement with the rack. If the wrench is now applied to a nut, for example, and the movable jaw is moved up against said nut, and the size of the nut should be such as would not permit the jaw to rest tightly against it because of the distance to the next notch, this is easily adjusted by a turn of the screw head 5 which operates to move the rack longitudinally sufficiently totake up the shortage.

It will be noted that the movable jaw 6, because it has no other operating mechanism forming a part thereof, or moving with it, can be moved the full length of the stem between the handle and the head 2, thus making the wrench adjustable to any size of nut or other object. It can be quickly applied and adjusted and because of the simplicity of construction, and the close fit which can be had between the movable jaw 6 and the stem or body 1, a very strong wrench is provided.

While I have shown and described one form only, I am aware that slight changes can be made therein without departing from the spirit of the invention, and I do not, therefore, limit the invention to the particular form here shown and described, except as I may be limited by the hereto appended claims.

I claim:

1. A wrench of the character referred to comprising in combination a body provided at one end with a fixed jaw and at its opposite end adapted to be gripped by the hand, a rack movably attached to said body longitudinally thereof and of less thickness, whereby to leave the corners of said body uncovered by said rack, a movable -jaw slidably mounted upon said body and having integrally formed shoulders therein adapted to slide upon the shoulders of said body at opposite sides of and adjacent said rack, a dog seated in said movable jaw and adapted to engage with said rack, means for actuating said dog, and means for adjusting said rack longitudinally of said body, substantially as 1 described;

- 2. In a wrench of the character referred to, in combination with a notched part, a jaw member slidably mounted thereon and provided interiorly thereof with a notched dog adapted to said notched part, a spring normally holding said dog in operating engagement with said notched part, said dog having at its opposite sides inclined bearing surfaces, two operating members movably scribed.

OMER AGNEW. In presence of G. A. NioHoLs, J. C. STRENG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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