US599715A - Melvin w - Google Patents

Description

'(No Model.) 7 M. W. LOWE.

NUT WRENCH.

Patented-Mar. 1, 1898.

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UNITED STATES PATENT OFFICE.

MELVIN w. town, or CYNTHIANA, KENTUoKY, ASSIGNOR OF ONE-HALF TO JOHN w. DANIEL AND CHARLES s. EWING, or SAME PLACE.

NUT-WRENCH.

SPECIFICATION forming part of Letters Patent No. 599,715, dated March 1, 1898.

Application filed'June 12, 1897.

v T at whom it may concern.-

Be it known that I, MELVIN W. LOWE, of Cynthiana, in the county of Harrison and State of Kentucky, have invented certain new and useful Improvements in Nut-Wrenches;

and I do hereby declare the following to be a .stationary handle.

The invention consists of a wrench comprising certain improved features and novel I combinations of'parts appearingmore fully I hereinafter.

In the accompanying drawings, Figure 1 is a side elevation, and Fig. 2 asectional elevation. Y

The handle is shown at 1, the same being hollow inside, as at 2, and provided with interior screw-threads 3 at its reduced end 4. The numeral 5 designates a bar which is formed with a bent end 6, which loosely receives the reduced end l. of the handle, a washer 7 being located on the reduced end and the latter being riveted-or flattened on said washer. It will be seen that the handle can be turned in relation to said bar. At the upper end of the bar there is a main jaw 8. The numeral 9 designates a squared or flattened adjustable bar having a supplemental fixed jaw 10. This bar passes freely through a similarly-shapedopening in the main jaw 8, and it has a cylindrical. reduced screwthreadedend 11, which engages with the screw-threads 3 of the handle and is adapted for reception in the hollow part of the latter.

Serial No. 640,541. (No model.)

The bar 9 has a shoulder to engage with the washer 7 and limit the closing movement of the supplemental jaw.

The operation is as follows: The handle is turned, and inasmuch as the adjustable bar is itself prevented from turning by reason of its sliding through the jaw 8 the engagement of thescrew-threads 3 and 11 causes said adj ustable bar to be moved so that its jaw can be turned toward the fixed jaw 8 or urged away from the same, according to the direction in-which the handle is turned.

It will be apparent that my wrench possesses advantages over the ordinary form of wrench wherein is employed a nut for moving a jaw, inasmuch as the handle can be readily turned and astrong grasp had, so that the jaws may be made to tightly clamp the nut, which is not possible with a wrench employing a nut for adjustment, as a proper grasp cannot be had with the fingers.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The herein-described wrench comprising a bar having a main jaw and a projecting portion or extension, a hollow handle provided with internal screw-threads and having a reduced portion journaled in the projection or extension aforesaid, a washer secured to said reduced portion, and a flat adjustable bar working through the main jaw and provided with a screw-threaded end which is received in the hollow handle and engages with the screw-threads, said adjustable bar having a supplemental jaw.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

MELVIN w. LowE.

' Witnesses:

SHELTON REED, A. E. OoLEeRovE.

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