US1227183A - Jar-wrench. - Google Patents

Description

n I. L. NELDIIAM.

JAR WRENCH.

APPLICATION FILED SEPT. 8. I9I6.

13227, 183. Patented May 22, 1917.

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UNITED s'rAIEs PATENT OFFICE.

JOHN L. NEEDIIAM, or CHICAGO, ILLINOIS, AssICNoR To THE BOYE NEEDLEl COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.l

JAR-WRENCH.

Specification of Letters Patent.

Application led September 8, 1916. Serial No. 119,111.

mary object is to provide an improved device, of simple and cheap construction, which is well adapted to the purpose of loosening or tightening closures of varying sizes.

The invention is illustrated in its preferred embodiment in Vthe accompanying drawing, in which- Figure l represents a plan view of a jarwrench constructed in accordance with my invention, the dotted line indicating the top or Closure of a jar; Fig. 2, a bottom plan A view of the device, showing the levers more widely separated to admit a larger can-top; Fig. 3 a side edge elevational view of the device, viewing the side which is at the upper portion of the figure in Fig l; and Fig. 4, a sectional view, taken as indicated at line 4 of Fig. 1.

In the preferred construction, the invention comprises a pair of levers, or jaws, A and B, provided, respectively, with handles A and B. One of the levers, preferably the lever A, is provided at its pivot end with a laterally extending arm, or pivot-lug, l, and the other lever is connected therewith by a pivot 2. Also, one of the levers, preferably the lever A, is provided with two gripping- lugs 3 and 4, while the other lever is provided with a single gripping-lug 5.

The levers are preferably stamped from sheet-metal. The metal at the outerv lateral edge of the lever A is bent downwardly to form a flange, which is suitably shaped to provide the bearings, or gripping-lugs, 3 and 4, it being understood that the flange is interrupted between the bearings 3 and 4, where the metal remains in the plane of the lever, thus presenting a comparatively wide lateral opening through the ange and between the bearings 3 and 4, in the space in-v dicated by 6. The down-turned fiange is curved inwardly and under at thehandleportion of the lever as indicated at 4a, and

the grip-portion of thehandle is provided with transverse ribs4b at the outer VCurved edge of the handle-grip, so as to prevent the fingers from slipping.

The outer edge-portion of thel metal forming the lever B is bent downwardly to provide the closure-gripping lug 5, andk is curved inwardly and under, as indicated at 5a, to provide a suitable hand-grip for the handle B. lThe Curved outer wall .of the handle B is likewise provided vwith transverse ribs 5b, to prevent the fingers from slipping. The metal at the outer edge of the main portion of the lever B is notv bent downwardly, but remains in the main plano of the lever, as Vindicated at 7. vThus, the flange which forms the closure-grip 5 is interrupted, or, in effect, cut away from the grip l5 to the pivotend of the lever.

From the description given, it will be understood that the body-portions of the levers have a plane or substantially flat lower surface adapted to rest upon the top of the can, while the closure-grips 3, 4.and 5 will grip the circumferential portion of the jarclosure. v

The metal ofthe body-portions of the levers is struck upwardly to form external longitudinall strengthening ribs 8.

In the luse of the device, the levers are separated sufficiently to embrace the circumferential portion of the Closure between the lugs 3, 4 and 5. When the handles are pressed together, the jar-closure is firmly gripped between the closure-gripping lugs and the closure may be readily loosened and removed from the jar. It will be observed that the closure-gripping lug 5 is a considerable distance from the pivot 2, the result being that the lug 5 will grip the closure some distance beyond a diametrical line passing through the center of the Closure and a point mid-way between the lugs 3 and 4. This will be true, even of quite a large closure, so that it will be understood that the wrench is universal for a large range of sizes. Three closure-grips employed on levers in this manner are sufficient to effectively grip the closure. By making one of the levers of angular form, or providingl a lateral projection which is integral with the lever, and which serves as a pivot-ear, the construction is simplified, and the manipulation of the device is facilitated.

Patented May 22, 1917.

A device of the description given may be Vdurably made'and of handsome appearance,

and may be manufactured thus at moderate cost.

The foregoing detailed description has been given for clearness of understanding only, and no unnecessary limitation should be understood therefrom, but the appended claims should be construed as broadly` as permissible, in view of the prior art.

What I claim as new, and desire to secure Y otally-connected sheet-metal levers having the lateral outer edge-portions oil the levers curved downwardly to afford closure-gripping lugs and curved at the handle-portions ci?` the levers to afford handle-grips, said Copies of this patent may be obtained for closure-gripping lugs being spaced to admit the closure between them.

3. A jar-wrench comprising a lever having a lateral projection at one end affording a pivot-'lug and having the outer lateral edge-portion provided with a down-turned flange which is interrupted to afford closuren gripping lugs7 and a companion lever pivotally connected with said pivot-lug and having its outer lateral edge-p ortion equipped with a closure-gripping lug.

Y 4l. A ar-wrench comprising a sheet-metal Y lever having a laterally-projecting pivot-lug at one end and having the outer lateral edgeportion of the metal bent downwardly to afford closure-gripping lugs and a handlegrip, space being left between the closure.`

gripping lugs to admit the closure, anda companion sheet-metal lever having one end pivotally connected with said pivot-lug and having the outer edge-portion of the metal bent downwardly to afford a pivot-gripping lug and having the metal curved downwardly and under to afford a handle-grip.

JOHN L. NEEDHAM.

five cents each, by addressing the Commissioner of Patents, Washin gton, D. G.

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