US309389A

US309389A - Wrench

Info

Publication number: US309389A
Authority: US
Publication date: 1884-12-16
Anticipated expiration: 1901-12-16

Description

, W* p H-EPPRON.v

No. 809,389. Patented Deo. 16, 1884. y

lINrrn rains arnnrr trice.

VILLIAM l). HEFFRON, CF CHICAGO, ILLINOIS.

WRENCH.

SPECIFICATION' forming part'of Letters Patent No. 309,389, dated December 15,1884.

Application filed April 2l, 1884.

@ZZ whom, t may concer/L.-

Be it known that l, WILLIAM P. HnFrRoN, a citizen of the United States ofAmerica, residing at- Chicago, in the county of Cook and State of Illinois, have invented certain new and Useful Improvements in V'renches, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to an improved wrench.

The object of the invention is to secure a wrench which will be simple in construction, and which will be securely held in the desired position during the operation; and to the accomplishment of the above the invention consists of the novel devices and combination of devices,as will be described and claimed.

efercnce will be made to the accompanying drawings, in which Figure l is Aan elevation of the wrench complete, Fig. 2a sectional view of the same, and Fig. 3 an end elevation.

Like letters refer to like parts in each View. The wrench may be formed of any suitable material 5 and consists ofa handle, A, formed with a head, B, and jaw C, which forms the stationary lip ofthe clamping device. Formed longitudinally through head B is an opening,

the out-lines of which are shown in Fig. 3, and into and through said opening a bar, D, is inserted. Bar D has formed on its upper face and outer end a lip or jaw, E, which oompletes the clamping device in connection with jaw C, above referred to. Bar D and its jaw E are adapted to be adjusted in the opening described as formed in head B, and with respect to jaw C, so as to adjust the clampingl device. An opening, F,which counnunicates (No model.)

with the opening in which bar D rests, is formed in head B,` and extends through the bottom thereof.

Pivoted in opening F is a pawl, G, one end of which projects out beyond head B, and the other engages with ratchet-teeth formed upon the lower face of bar D.

Situated within a recess, a, formed in head B, is a spring, H, which is connected to pawl G, and which is arranged to keep said pawl in contact with the teeth of bar D. By this arrangement it will be understood that the bar D, with the jaw E, with which it is provided, will be held securely in any desired position with respect to jaw C, while at the saine time by applying pressure to the outer end of pawl G the parts will be released and the adjustment of said bar rendered possible.

By the arrangement of parts as described it will be seen that a simple and effective wrench will be obtained, and one in which the mechanism for operating the adjustable jaw will bein a convenient position. YWhat I claim is- The combination, with handle A, of stationaryjaw C, formed therewith,bar D, formed with jaw E, and with a rack on its under surface, and pawl G,situated within the head ofhandle A, the parts so arranged that the bar D audits head move parallel with the handle, as shown.

In testimony whereofl aflix my signature in presence of two witnesses.

WILLIAM l?. HEFFBON.

fitnessesz M. J. Cin-renin, Louis N omiso'.