US916507A - Wrench. - Google Patents

Description

W. VAN WIE.-

WRENCH. APPLICATION FILED JAILG. 190B.

Patented Mar. so, 1909.

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Q/v tu asses WALTER VAN WIE, OF OAKLAND, CALIFORNIA.

WRENCH.

Specification of Letters Patent.

Patented March so, 1909.

Application led January 6, 1908. Serial N o. 409,507.

To all 'whom it may concern.'

Be it known that I, VALTER VAN Win a citizen oi' the United States, residing at Oakland, in the county of Alameda and State oi' California, have invented a new and useful Improvement in Wrenches, of which the following is a specication.

This invention relates to wrenches, the object being to provide a wrench with a revoluble aw which can be operated without turning the handle so that a nut can be readily taken off after loosened or screwed on.

A -further object oi my invention is to provide a Wrench which is exceedingly simple and cheap in construction, and one which is provided with very novel means for locking the revoluble 'aw so that the wrench can be operated by t e handle.`

l/Vith these objects in view, the invention consists in the novel features of construction, combination and arrangement of arts hereinafter fully described and pointeCFout in the claims.

In the drawing forming a part of this speciicationz-Figure l is a perspective view of my improved wrench. Fig. 2 is a longitudinalsectional view oi' the same. Fig. Sis a section taken on lines 3 3 of Fig. 2. Fig. 4 is an inverted plan view of the wrench, the handle being partly broken away, and Fig. 5 is a perspective view of a cotter pin used `l'or locking the crank-arm to the shaft.

In the drawing A indicates a hollow handle provided with a cylindrical head B which is provided with an external annular groove adi' acent its open end, in which are mounted ls which work in the annular groove of a circular jaw C which is provided with a nutreceiving opening. The balls being placed in the runeway formed by the co-acting grooves of the head and jaw, through an openincr formed in the head which is normally closed by a plug, as shown in Fig. 2.

The upper edge oi the 'aw is provided with beveled-gear-teeth as shown at O/ which mesh with a beveled gear D secured on the end of the shaft E mounted in the hollowhandle, the end of the shaft E being formed oblong in cross-section, as shown, over which is adapted to fit one of the oblong openings of a crank-arm F which is locked thereon by a Cotter-pin G, as clearly shown in Fig. l, and it will be seen that by operating the crankarm, the jaw can be caused to revolve in either direction which will enable the jaw to be turned yso that it can be readily placed over a nut when using the wrench in close quarters, and by continually turning the crank, the jaw will be caused to revolve and screw up or uuscrew the nut as the case may be. The crank-arm being provided with spaced openings, whereby the arm can be adjusted so as to change the leverage.

The upper end of the cylindrical head being provided with an inwardly projecting flange as shown, which ineloses the same and formed in one wall of the head, over the handle is an opening, to each side of which are arranged apertured lugs B/ in which is mounted a lever I on a pin I, the lever being provided with a forked end, the arms el which are angled as shown at Ig which are adapted to ht in a semi-circular member J provided with teeth J in its lower edge, which are adapted to engage the beveled gear O of the jaw C, to prevent the saine from rotating, the member J being held in position by guide-members B2. An apertured lug K is formed on the upper end of the handle A, in which is mounteda handle L provided with a bifurcated end L', between which is pivotally mounted the outer end of the lever I. The other end of the handle is formed semicircular in crosssection as shown, under which is arranged a spring M, adapted to normallyT hold the handle up in position as shown in Fig. 2, whereby the member J will be normall held out of engagement with the revolub e jaw and allowing it to rotate freely, and it will be seen that by grasping the handle A and pressing on the handle L, the member J will be thrown into engagement with the teeth of the jaw O, so as to lock the jaw and prevent the same from turning.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. A wrench comprising a hollow handle provided with a cylindrical head, a jaw revolubly mounted in said head provided with beveled gear teeth on its upper face, a shaft mounted in said handle carrying a beveled gear meshing with. said gears of the jaw, a crank-arm secured on the end of said shaft, and a sliding member arranged in the head provided with teeth adapted to engage the teeth el' the jaw.

2. A wrench comprising a hollow handle provided with a cylindrical head, a aw provided with. a beveled gear on its upper face revolubly mounted in said head, a shaft mounted in the handle Carrying a gear meshing With the teeth oi the jaw, a lever mounted in the head carrying a looking member adapted to engage the teeth of the jaw, and a handle mounted on the lirst mentioned handle connected to said lever.

3. A Wrench Comprising a hollow7 handle provided with a cylindrical head, a circular jaw revolubly mounted in said head provided With beveled gear teeth on its upper edge, a shaft mounted in the handle provided With a beveled gear meshing With the teeth of the jaw, a crank arm secured on the outer end of said shaft, a semi-circular member slidably mounted in said head over said jaw provided withA teeth on its lower edge7 said member being carried by'a pivoted lever, and a spring actuated handle oonneeted to said lever for normally holding said member out of engagement with the 20 teeth of the javf.

WALTER VAN WIE,

Witnesses:

E. V. HARTMAN, W. H. BALDWIN.

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