US432945A - Monkey-wrench attachment - Google Patents

Description

. (No Model.)

L. 1). JUNKINS. MONKEY WRENCH ATTACHMENT.

No. 432,945. Patented July 22, 1890.

WITNEEEEE INVENTEIR wa /d4 PUD/6M 5 4 UNITED STATES PATENT OFFICE.

LEANDER D. J UNKINS, OF SOMERVILLE, MASSACHUSETTS.

MONKEY-WRENCH ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 432,945, dated July 22, 1890.

Application filed May 26, 1890. Serial No. 353,230. (No model.)

To all whom, it may concern.-

Be it known that I, LEANDER D. J UN KINS, of Somerville, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Monkey- \Vrench Attachments, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention consists in so constructing and combining with a monkeywrench a screw-driver bit that the whole constitutes a very useful and convenient portable tool.

My invention is illustrated in the accompanying drawings, in which- Figure 1 is a View in perspective of the screw-driver bit. Fig. 2 shows the same in connection wit-h a part of the monkey-wrench. Fig. 3 shows in elevation a pocket monkeywrench with my screw-driver bit attached.

The dotted lines in this view show the position of the screw-d river bit when not in use. Fig. 4 is an elevation showing a part of the monkey-wrench with the screw-driver bit clamped in a position at right angles to the handle of the wrench. Fig. 5 is a perspective view showing a modified form of my screwdriver bit.

In the drawings, A represents a monkeywrench, and A the head-bar of the same. This wrench is of ordinary construction, and need not be particularly described.

The screw-driver bit consists in a bit-edge I3 and bent arms C and 0', each of the bent arms 0 and 0 being bent to form buttresstips D D, as shown. The bent arms 0 and C have an opening E between them large enough to embrace the headbar A when placed as shown in Figs. 2 and 3that is, in a position in which the screw-driver bit is in line longitudinally with the wrench. The recess E, Fig. 1, is adapted to embrace the rear jaw when the screw-driver bit is placed at right angles with the wrench, as shown in Fig. 4.

WVhen' not in use, the screw-driver bit is turned back and secured to the wrench, as shown by dotted lines in Fig. 3. When in this position, the whole may become a pocketinstrument.

In Fig. 5 I have showna modified form of my instrument. In this form the buttressarms C- D O D of Fig. 1 become the parts (Z d of the modified form, and the recess E corresponds to the recess 6'. The method of using this and of attaching and detaching it from the wrench is so obvious as not to require any explanation.

What I consider new, and desire to secure by Letters Patent, is set forth in the following claim:

The combination of a monkey-wrench A A with a screw-driver bit having buttress-arms adapted to embrace the head-bar of the wrench, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 2Ith day of May, A. D. 1890.

LEANDER D. JUNKINS.

Witnesses:

FRANK G. PARKER, MATTHEW M. BLUNT.

Images