US1147761A - Wrench. - Google Patents

Description

H. O. SPADE.

WRENCH.

APPLlCATION FILED NOV. 19. 1914.

Patentd July 27, 1915.

,5 gintor Witnesses Attorneys i the shoulder 3 Tlhl 1T %TA ATENT @FFTQE.

HERBERT OSCAR SPADE, OF KALAMAZIOO, MICHIGAN, ASSIGNOR OF THREE-FOURTHS T0 GEORGE E. ALLEN, 0F KALAMAZOO, MICHIGAN.

WRENCH.

Specification of Letters Patent.

Patented July 27, 1915.

To all whom it may concern:

Be it known that I, HERBERT O. SPADE, a citizen of the United States, residing at Kalamazoo, in the'county of Kalamazoo and State of Michigan, have invented a new and useful Wrench, of which the following is a specification.

The present invention appertains to wrenches, and aims toprovide a novel and improved quick adjustable wrench.

This invention contemplates the provision of a wrench embodying a unique assemblage of the component parts,'whereby the wrench may be quickly adjusted and manipulated for holding or clamping the nut or other article to be rotated or swung, and the construction of the wrench being such as to render it convenient, practical and efficient in use, as well as being comparatively simple and inexpensive to manufacture.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in its pre ferred. embodiment in the accompanying drawings, wherein Figure 1 is a side elevation of the improved wrench. Fig. 2 is a longitudinal sectional view thereof. Figs. 3 and 4 are cross sectional views taken on the lines 33 and 44, respectively, of Fig. 1.

1n carrying out the invention, there is provided a stock or shank 1 having the fixed or stationary jaw 2 at its outer end, and the reduced stem 3 at its inner end, forming A slide 4 surrounds or embraces the shank or stock 1 to slide thereon and carries the movable or slidable jaw 5 which cooperates with the fixed jaw 2, the slide 4 being provided at that edge of the shank 1 adjacent the jaws 2 and 5, with an opening or recess 6.

A rack bar 7 is disposed slidably against that edge of the shank 1 adjacent the jaws, and fits snugly between the said edge of the shank and the corresponding wall of the slide 4, the bar 7 being provided with a lug 8 engaging within the recess 6 of the slide applied to the slide4, before 4, to attach the rack bar to the slide whereby they will slide or reciprocate in unison. It will be evident that the rack bar 7 may be the slide 4 is slid onto the shank or stock 1 from the inner end thereof. The bar 7 projects inwardly from the slide 4, and the inwardly protruding portion of the bar 7 is provided upon its outer side with a series of oblique or helical screw threads 9. That edge of the shank 1 remote from the rack bar 7, is provided with a notch 10 between the ends of the shank, and at a pointspaced inwardly from the slide 4, and an arcuate clip or strip 11 has its intermediate portion engaged snugly within the notch 10, and extends around the shank 1, so that the ends of the clip or member 11 will engage the edges of the rack bar 7 to serve as a guide for restraining the rack bar 7 for longitudinal movement. The clip 11 may be secured within the notch 10, by means of a screw or other securing element 12 engaged through the intermediate por tion of the clip and taking into the shank 1, or solder 13 may be usec or provided between the arms or side portions of the clip 11 and shank l, or both of the securing means may be provided if desired.

A tubular or sleeve-like handle 14 surrounds the inner end portion of the shank or stock 1, and the handle 14 is provided adjacent and at a point spaced slightly from its inner end, with an inner annular flange 15 journaled upon the stem 3 and bearing against the shoulder 3 of the shank to limit the outward movement of the handle. A retaining nut 16 is threaded upon the protruding portion of the stem 3 within the inner end of the handle 14, and bears against the flange of the handle for holding the handle rotatably in place upon the shank, the nut 16 being concealed within the inner end of the handle, but being readily accessible through the inner end of the handle when it is desired to remove the nut for removing the handle. Since the outer end of the handle 14 is journaled upon the clip 11, and the inner end of the handle 14 is journaled upon the stem 3, the handle is rotatable upon the. shank in a snug and substantial manner. The outer end portion ,of the handle 14 is provided with internal mutilated screw threads 17, having the longitudinal slot or unthreaded portion 18 extending therethrough, the threaded portion 9 of the rack bar 7 projecting into the handle 14, and being engageable by the threads 17 thereof. As a means for limiting the rotatory movement of the handle 14:, which has the screw threaded or nut portion 17, a pin or lug 19 is secured to the clip 11 adjacent one end thereof, and the outer end of the handle l i is provided with an outwardly projecting lug 20, the pin or lug 19 forming a stop against which the lug 20 of the handle is engageable. The slot or unthreaded portion 18 of the handle, and the lugs 19 and 20 are so arranged, that when the handle 14 is rotated in one direction to bring the lug 20 against the lug or stop 19, as seen in Figs. 1 and 3, the slot 18 will be brought adjacent the rack bar 7, and the threads 17 of the handle will be released from the threads of the rack bar 7 so that the rack bar may be slid longitudinally for moving the slide l and jaw 5 carried thereby, to and from the fixed or stationary jaw 2. This will enable the movable jaw to be quickly set to the position desired, so as to be moved quickly into and out of engagement with the nut or other object. Then, when the handle M is swung in the opposite direction, the screw threads 17 of the handle will be interengaged with the threads 9 of the rack bar 7, to lock the rack bar and slide l against longitudinal movement, and as the handle 14: is rotated, it will cause the rack bar to be forced outwardly due to the spiral or helical trend of the threads 9 and 17, so that the nut or other object will be clamped between the jaws.

From the foregoing, taken in connection with the drawing, the advantages and salient features of the present invention will be apparent to those versed in the art, par

ticular attention being directed, however, to the fact that the clip or member 11 provides a suitable guide for the rack bar'7 without the necessity of providing a guide slot in the shank 1, and furthermore, the clip 11 provides a suitable bearing for the outer end of the rotatable handle 14, without the necessity of providing a cumbersome and obj ectionable integral bearing upon the shank for the accommodation of the handle.

Having thus described the invention, what is claimed as new is:

A wrench comprising a shank having a fixed jaw at its outer end, a slide mounted upon the shank and carrying a movable jaw, an inwardly projecting rack bar attached to the slide and slidable along the shank, an arcuate clip secured around the shank and having its ends forming a guide for the rack bar, and a. tubular handle surrounding the inner end portion of the shank and having its outer end journaled upon the said clip, the handle having mutilated threads arranged to engage and disengage the rack bar when the handle is rotated to predetermined positions, the clip having a stop projecting therefrom, and the outer end of the handle having a lug projecting therefrom and cooperable with the stop for limiting the movement of the handle when it is rotated to disengage the threads thereof from the rack bar.

In testimony that I claim the foregoing as my own, I have hereto afliXed my signature in the presence of two witnesses.

HERBERT OSCAR SPADE. itnesses Karrrnnnvn MADIGAN, JOHN H. BURKE, Jr.

Copies of this patent may he obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, .D. G.

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