US955781A - Wrench. - Google Patents

Description

I. H. FLORY.

WRENCH.

APPLICATION I'ILBD FEB. 10, 1010.

Patented Apr. 19, 1910.

UNITED STATIES PATENT OFFICE.

IRA H. FLORY, F ARGANUM, OHIO.

WRENCH.

Specification of Letters Patent.

Patented Apr. 19, 1910.

Application filed February 10, 1 910. Serial No. 543,106.

To all whom it may concern: I

Be it known that I, IRA H. From, a citizen of the United Statesaresidint at Arcanum, in the county of Darke and State of Ohio, have invented certain new and useful Improvements in and Relating to \Vrenches,

awsadjusted while the wrench is supported and in use. Second to-provide a Wrench the jaws of which may be adjusted in a comparatively smallispaceg Third: to provide a wrench having a pair of jaws, one oi which is mounted to swing relative to the other jaw to facilitate the positioning of the wrencln Other objects of the invention will be ap-.

parent from the following description and claims.

Referring-to the drawings, Figure 1 is a sale elevation ot a wrench embodying my mventlou. Fig. 2 IS a front view ot the same.. Fig. 3 is a topview ofone of the Fig. 4; is'un elevation of the shank for the wrench with the handle removed. Figs. 5 and 6 are sale and front views, respectively, of the aw member. Figs. 7 and 8 are plan and side views, respectively, of the spring which holds the shan and jaw member in normal position. 9 to 12 are detail views of the connecting devices for the shank and jaw member.

Inthe drawings, D indicates a rotatable shank. This shank is )refcrably reduced in size near its lower end and ada )ted to-receive a grip or handle F. The "reeend of the shank may be provided with screw threads to take a nut G, whereby the handle is held in place thereon.

L indicates a pin or rivet extending transversely through the handle F and shank D in order to securely unite these parts and to prevent any movement, relatively to each other, in rotating the shank D to adjust the jaws of the wrench, as will be later described. The main or body portion of the shank is also provided with screw threads, as shown at (l, for a purpose to be hereinafter described.

D indicates the rear jaw of the wrench mounted upon the upper end of the shank D. The jaw I) is referably enlarged relative to the shank to provide a large ongaging jaw face. This jaw face ma be roughened or corrugated, as shown in 3 and 4.

A indicates the front or opposing jaw member comprising a bar A and a laterally projecting front jaw a cooperating with the jaw D. The face of the jaw is preferably cross grooved.

B indicates a connector or bolster for connecting together the shank D and bar A.

6 indicates an opening formed inthe bolster B near one end thereof and provided with screw threads. This opening receives the screwthrca'ded portion of the shank D.

6 indicates an opening formed in the bolster B near its opposite end.

J indicates a pivot pin extending through the bar A and having its opposite ends supported in the walls of the opening I). This opening is elongated, as shown in Fig. 10, in order that the bar A pin J to permit slight movements of the jaw a relative to the jaw D; The opposite end may rotate on the i wells of the 'o enin Y Z) 0 ieratc as sto s to P is l P limit the movement of the bar A.

0 indicates a link or bolster fixed to the bar A at or nearits lower end. The link 0 is formed with an elongated opening 0, through which the shank D extends. The opening 0 permits the lower end of the bar A to swing toward the shank D to open the jaws D and a, but prevents it from swinging in the opposite direction. The link C preferabl comprises a continuous bar or rm 0 o. substantially rectangular shape. W en.thc link 0 is formed or cast in this shape, the bar A is arranged near one end of the opening a and rigidly secured thereto by a pin K.

ll indicates a siring secured at one end to the bar A, as y a screw 1, and having its op osite or free end engaging the shank D. 'l e spring H operates to maintain the shank D and bar A in parallel relationship, but ermits the swin ing of the bar A on its pivots to spread tiie aws D and a. As

the faces of the jaws D and a lie in planes at right angles to the axes of the shank D and bar A, it will be understood that when the latter are parallel to each other, the jaws D and a are also parallel to each other. In operating the wrench, it may be pressed over the pipe or other article by applying pressure at the free endof the front jaw,

nector B and link C connect and hold the jaws in their adjusted position and effect the operation thereof as a unitary structure.

It will also be understood that by rotating the shank l), the jaw D is adjusted toward or from the jaw a according to the direction the shank is turned, and as the handle 1*, by which the wrench is manipulated, is fixed to the shank D, the wrench may be inserted into a very small space and the wrench jaws adjusted by the same hand that grips and supportsthe wrench and without releasing the. hand from the handle F. I

What I claim is: l. Ina wrench, the combination of a rotatable shank carrying a jaw and provided with screw threads, a jaw member coinprising a bar and an opposing jaw, a connector formed with two openings, one of said openings-being provided with screw threads and arranged to receive the screw threaded portion'of the said shank, and the other of said openings bein elongated and adapted to receive the bar 0? the jaw member, means for pivotingthe bar in said elongated opening, and 1a link fixed to the free end of the said bar and formed with an elongated opening through which the shank extends, the said elongated openingvin the link permitting the jaw member to swing in one direction, but operating to hold the shank and jaw membervin fixed relationship when force is applied-to. the shank to-turn an ,article grippedbyithe jaws of the wrench.

2; Ina wrench, the coinbination of-a rotatable shank carrying a jaw and provided with" a screw threaded portion, a jaw member comprising a bar and -an opposing jaw,

a connector foi inedgiwith two openings for adjustably connecting ,thei shank and jaw member together, onemfsaid openings being provided with-screwthreads and arranged to receive the screw threaded "portion of the said shank, whereb'y'the latter may be rotated to: adjust itland the jaw carried thereby relative to the opposing jaw, and the other of said openings being elongated and adapted to receive the bar of the jaw member, means for pivoting the bar in said elongated opening, a link carried by the free end of the bar 'and formed with an elongated opening through which the said shank extends, the said elongated opening in the link permitting the jaw member to swing in one direction, but operating to hold the shank and aw member in fixed relationship when force is appliedto the shank to turn an artiole gripped between the two jaws, and a barn dle carried by the shank, whereby the wrench may be supported and the jaws adjusted siimiltaneously.

A wrenchcomprising a shank carrying a jaw, a bar carrying a jaw arranged to cooperate with the jaw carried by the said shanlnand a pair of connecting devices'tor holding the said. shank and bar in separated position, one of said connecting devices having at one end screw threaded engagement with the shank to permit sliding movement thereof relative to the bar and having atits opposite end pivotal connection with the bar to permit swinging movement thereof relav tive to the shank, and the other connecting device being fixed at one end to the said bar and formed with an elongated opening through which the shank extends, the said connecting devices operating to hold the bar and shank in fixed relation when force is applied in the operation of the wrench.

4:. Ina pipe wrench, the combination of a shank provided with a screw threaded portion andcarrying a aw at one end, a jaw member comprising a bar and a jaw arranged tocooperate with the aw carried by the said shank, a bolster for connecting the 'said shank and jaw member-together, the

said connector being formed with openings near its opposite ends arranged to receive the said shank. and bar of, the jaw member and theopening through which the shank ex tends being provided with screw threads to take the screw threaded portion of the said shank whereby the latter may be" adjusted, means for pivotally connecting the bar of the jaw member in the other opening of the bolster, and means for connecting the shank and jaw member together below the said bolster to permit pivotal movements of the aw member in one direction but to hold the shank and jaw member in fixed relationship when force is applied in the operation of the A wrench.

' IRA H. FLORY. V

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