US780787A - Wrench. - Google Patents

Description

PATENTED JAN. 24,1905.

WRENCH.

APPLICATION FILED JUNE 13. 1904.

R. c. ELLRIOH;

V k a A I mm UNITED STATES iatented anuary 24, 1905.

PATENT OFFICE.

ROBERT C. ELLRICH, OF SOUTHINGrTON, CONNECTICUT, ASSIGNOR TO BECK, STOW & WILCOX COMPANY, OF SOUTHINGTON. CONNECTI- OUT, A CORPORATION OF'CONNECTICUT.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 780,787, dated January 24, 1905.

Application filed June 13, 1904.. Serial No. 212,269.

' To all whom it may concern:

Be it known that I, ROBERT C. ELLRIoi-I, a citizen of the United States ofAmerioa, residing at Southington, in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

The object of my invention is to provide a device of the class specified having features of novelty and advantage. i

In the drawings, Figure 1 'isa general side view of a wrench embodying my invention with one of the wooden side plates removed to show the construction. Fig. 2 is a section showing the method of securing the bolster and handle-frame in place. Fig. 3 is an end View of the nut. Fig. 4 is a central section View of the handle on a plane at right angles to Fig. 1'. Fig. 5 is a view of a modification.

Referring to the drawings, A denotes in a general way the wrench-body having the jaw 01 at its lower end, the squared shank a on which the sliding jaw a moves, a shouldered part a on which fits the bolster a, which supports the upper end of the rosette-screw a which operates the movable jaw. Above the shouldered part a is a threaded section a, adapted to receive the nut d, which secures the bolster a in place. This nut a has an overhanging annular lip a notched, as at (t for the purposes hereinafter described- At its upper end the shank terminates in a stem a, which fits within the handle-frame, (indicated in a general way by B.) The handleframe B comprises a fiat web slotted, as at b, to receive the stem at and provided with suitable guides b -for said stem. The outer edges of the lower end of the frame are notched, as at Z2 to fit under the lip a of the nut (0 the notch a being provided to allow of inserting the notched ends of the frame into the recess in the nut.

It will be seen from the above description that asthe nut a is screwed down onto the threaded portion a of the shank a it forces the bolster a down onto its shoulder a and also draws the handle-frame 6 down onto the stem a. In order to prevent any looseness in Fig. 4.

To complete the handle, I provide two wooden plates C C, having tenons which fit down onto the nut, the outer end of these wooden plates fitting under the overhanging ends of the frame B, as clearly shown in Fig. 4, making a finished round handle. A screw 6 passes through one of the wooden side plates, through the stem a and is threaded into the other side plate, thus drawing them firmly together.

The construction is one which will permit of the parts of a wrench being readily taken down, so that any part of it may be repaired or-re placed, it being necessary in order to take the Wrench apart to first remove the screw and the wooden side plates C C and then unscrew the nut 07, which forces off the handle-frame B and leaves the bolster free to be removed, after which the sliding jaw, with its rosettescrew, can be removed.

The modification shown in Fig. 5 is in general similar to the preferred construction, with the exception that the stem D passes through a hole E in the end of the handle-frame B and .is riveted over, as at F. With this construction it is not necessary to form the annular lip on the nut, it being merely recessed on its upper-side in order to receive the handle-frame and provide a shoulder against which the wooden side members of the handle may rest.

I claim as my invention- 1. In a wrench the body and its integral stem, the jaws, the bolster and handle separastationary jaw on said stem, the sliding jaw with its rosette-screw, a bolster resting on said shoulder and supporting one end of said rosette-screw, a handle mounted on said stem, and a nut carried by said handle but rotatable with respect thereto engaging said threaded section of the stem whereby said bolster is held in position against the shoulder on said shank and the handle is drawn down onto said stem.

3. In a wrench the shank provided with a shoulder, a threaded portion above said shoulder, and a reduced stem above said threaded portion, the jaws, a bolster removably located on said shank and resting against said shoulder, a handle comprising a slotted frame fitting over said stern, said frame having its inner ends notched, and a nut having an annular lip engaging said notches in said handle-frame and adapted for engagement with the threads on said shank, wooden side members for said handle-frame having tenons fitting within the recess in the nut, and means for securing said wooden side members in place.

4:. In a wrench the shank having a shoulder, a threaded section above the shoulder, and a reduced stem above said section, the end of said stem being charnfered off, a bolster removably located on said stem against said shoulder, the stationary jaw, the sliding jaw having one end of its rosette-screw supported by said bolster, the handle-frame slotted to lit over said stem and having ears adapted to be turned down against the chamfered-ofl end thereof, and a nut carried by but rotatable independently of said handle-frame and adapted to be screwed onto the threaded portion of the stem against said bolster, and side members adapted to be secured in place on said handleframe, substantially as described and for the purposes set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

ROBERT C. ELLRICH. Witnesses THOMAS F. W ELoH, FRED C. WILLIAMS.

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