US1523093A - Quick-adjustable sliding-jaw wrench - Google Patents

Description

J n, 13, 1.925. LEEZEAEW J. w. WILCOX QUICK ADJUSTABLE SLIDING JAWWRENCH Filed June 25, 1925 WZZE N'SeS' Patented Jan. 13, 1925.

UNITED STATES JOHN W. WILCOX, OF BEMIDJ'I, IMINNESOTA.

QUICK-ADJUSTABLE SLIDING-JAW WRENCH.

Application filed June 23, 1923.

To all 10710771 it may concern:

Be it known that JonN W. WiLoox, a citizen of the United States, residing at Bemidji, in the county of Beltrami and State of Minnesota, has invented certain new and useful Improvements in Quick- Adjustable SlidingJ aw Wrenches, of which the following is a specification.

My invention relates to improvements in wrenches of the sliding jaw type and has for its primary object the provision of such a. wrench wherein the usual sliding jaw may be moved to the desired position with respect to the stationary jaw in a novel and simple manner.

A further object of the invention is to provide such a wrench wherein the said sliding jaw will be maintained in positive adjusted position and wherein extremely fine adjustment of the jaw may be had.

A still further object of my invention resides in the provision of such a. wrench that may be manufactured and marketed at a cost no greater than similar types of wrenches with which I am at present familiar.

The nature and advantages of the invention will be better understood from the following detailed description read in connection with the accompanying drawing, the invention residing in the construction, combination and arrangement of parts as claimed.

In the drawing forming part of this application, like numerals of reference indicate similar parts in the several views, wherein Figure 1 is an elevation of one side of my improved wrench,

Figure 2 is a similar view with a portion of the wrench head being shown in section, and

Figure 3 is a detail cross sectional view taken substantially upon the line 3-3 of Fig. 1 and looking in the general direction of the arrows.

Now, having particular reference to the drawing, my novel wrench embodies a. flatlike handle 5, of desirable length, formed at one end with an openingfi, whereby the same may be attached to a support, and formed at its opposite end with a wide portion 7 that functions as any other wrench. This wide portion extends diagonally with 1.1. ,tongue portion 10 of the sliding jaw 11 Serial No. 647,215.

across said head 7 and directly beneath said stationary jaw 8 is an undercut groove 9, through which is freely slidable the relatively elongated tongue 10 of a. sliding jaw As more clearly shown in Fig. 2 the formed at its inner edge with rack teeth 12 that are extended at an angle in a direc tion toward the outer end of said tongue.

Adjacent the, oppositerside of the wrench head ,7 from that which carries the stationary jaw 8 and communicating at one end with said undercut groove 9 is a pocket 18 within which is slidable a pair of relatively square-shaped plates designated respectively at 14 and 15. The edges of these plates adjacent the rack teeth of said tongue 10 are toothed at 1 1 and 15 respectively, it being noted in this connection that these teeth are inclined in a direction opposite to the inclination of the teeth of said tongue 10. Furthermore, the teeth upo-n one plate are arranged in staggered relation to the teeth upon the upper plate whereby the teeth of one plate will be wholly intermeshed with the teeth of said tongue 10 the teeth of the opposite plate being only partly within the teeth of said tongue for allowing adjustment to be made of the slid ing jaw equivalent to one-half the distance between the respective teeth 12 on said tongue 10.

The plates 14k and 15 are maintained in a position to have their respective teeth in mesh with the teeth of the tongue of said sliding jaw 11 through the instrumentality of expansion coil springs 16 which are located in said pocket 13 between the opposed end of said pocket and the adjacent edges of said plates.

The head 7 of the wrench is provided with an opening 17 immediately above the front end of the pocket 13 and positioned thereover is a cover plate secured to the head of the wrench through the medium of set screws 19 or the like. This plate 18 is provided substantially centrally with a slot 20 through which extends an elongated screw 21. This screw 21 also extends through a slot in the uppermost plate 1% which is of lesser length than the slot in said plate 18, this screw being finally engaged at its screw threaded end in a screw threaded opening in the lowermost plate 15. Connectedfto the upper end-of the screw 21 and slidable upon said plate 18is a thumb piece 22 the top snrtace thereof being milled. It will be apparent that a rearward movement of this plate 22 will occasion a similar movement of the plates 1% and thereby disengaging the toothed edges of the plates from the teeth 12 of the sliding jaw tongue 10 whereby this jaw maybe moved outwardly with respect to the stationary jaw '8.

From the foregoing it is believed by me that numerous advantages of a wrench of this: character will be readily apparent to those skilled inthe art and even 'tl iough I have h'erein'set forth the most practical embodiments of the invention it isnevertheless to be understood that minor changes may be made therein without departing from the spirit and scopeof'the inventionas set forth in the appended claim.

25 Havinglthus described by invention, what I claim as new and desire to protect by Letters Patent is A wrench comprising a handle provided with a fixed jaw and having a jocket disposedat the fixed jaw, a jaw slidably mounted with relation tothe fixed jaw and provided with ratchet teeth disposed toward the said pocket," plates arranged. side by side in the pocket and having ratchet teeth adapted to engage the teeth of the movable jaw, springs interposed between the edges of the plates and the bottom of the pocket and serving to hold the teeth of the plates toward the teeth of the movablej aw, one of the said plates having a'slot disposed transversely to the toothed edge thereof, a pin fixed tojthe other plate and passingthrough said slot and a cover plate mounted on the handle overlying the pocket and having a slcitforined therein, said pin also passing through theslot ofthe'cover plate andha-ving'a t' its outer end a thumb covers said slot.

In testimony whereof I afiix my signature.

JOHN W. WVI'LCOX.

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