US1012036A - Wrench. - Google Patents

Description

J. H. vmToN.

WBBFOH. nrmornon Hmm :un: sa. 1911.

Patented Dea 19, 1911.

Pxl

UNITED STATES PATENT OFFICE.

JOHN H. VINTON, 0F BOSTON, MASSACHUSETTS, ASSIGNOR TO TRIMONT MANUFAC- TUBING COMPANY, OF ROXBURY, MASSACHUSETTS, A CORPORATION OF MAINE.

WRENCH.

To all 'whom 'it may concern:

Be it known that I, JOHN H. VINTON, a citizen of the United States, residing at Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in lVrenches, of which the following description, in connection with the accompanying drawing, is a specication, like characters on the drawing representing like parts.

This invention relates to wrenches and particularly to that type of wrench in which the movable jaw is adjusted by or through the operation of a nut. In many wrenches of this type the nut projects beyond the body of the wrench on opposite sides so as to provide a projecting portion which can be readily gras ed when it is desired to turn the nut. I a wrench of this sort is laid down on a flat surface the periphery of the nut engages the surface, and if the wrench is accidentally moved over the surface the friction of the nut thereagainst is very likely to turn the nut and thus destroy the adjustment of the jaws.

The object of my invention is to provide means for preventing the .nut from becoming accidentally turned when the Wrench is laid down or is moved about over a surface on which it rests.

I accomplish my object by providing a nut guard which is associated with the nut and which projects beyond the nut sulficiently so that when the wrench is laid down it will be supported on the nut guard and not on the nut, and the nut will be prevented rom contacting with the supporting surace.

My invention is cap-able of employment in almost any wrench wherein the movable jaw is operated. by turning a nut or its equivalent, but in order to illustrate the principle of the invention I have chosen to show it as it would be embodied in a well-known type of pipe wrench.

In the drawings Figure 1 is a side view of a wrench having m invention applied thereto; Fig. 2 is a section on the line Fig. l; Fig. 3 is a section on the line y-y, Fig. 1; Fig. 4 is a perspective view of one of the nut guard members.

The wrench herein shown comprises the wrench body 1 having the handle 2 and fixed jaw 3 integral or rigid therewith and the movable jaw 4 which is provided with the screw-threadedl shank 5 that slides Specification of Letters Patent.

Application led June 23, 1911.

Patented Dec. 19, 1911.

Serial No. 634,864.

through the guide G formed on the wrench body and that has screw-threaded engagement with t-he nut 7 that is confined in said ,guide and is held from longitudinal movement thereby. The screw-threadedshank 5 is shown as having two opposed fiat sides 8 which lit corresponding fiat faces in the opening through the guide 6.

The parts thus far described are such as are commonly found in pi e wrenches, or in fact in some types of mon ey wrenches, and form no part of my present invention, it beingunderstood that the movable jaw 4 is given its movement simply by turning the nut 7. In this type of wrench the nut 7 is of such a diameter that it projects beyond the wrench body on opposite sides thereof, the projecting portions of the nut affording means by which the nut can be readily turned. As stated above when a wrench of this sort is laid down on its side the nut will contact with the surface on which the wrench rests and if the wrench is acciden t-ally moved over the surface the nut is liable to be turned, thus destroying the adjustment of the jaw 4.

My invention comprises a nut guard which is associated with the nut and which supports the wrench when the latter is laid down. This nut guard may have a variety of constructions without de arting from my invention. One simple an convenient construction is that herein illustrated wherein two guard members are employed, one on either side of the shank 5. These guard members have a general U-shape, as shown in Fig. 4, and each is formed with the fiat body portion 9 which overlies the flat face 8 of the shank and extends through the nut 7 and with the wings or arms 10 which overlie the sides of the nut and are of a size to project beyond the periphery of the nut, as clearly seen in Figs. 2 and 3. I will preferably use a guard member of this nature on each side of the shaft 5, both guard members extending through the nut and the wings 10 thereof overlying the ends of the nut and extending beyond the periphery. These guard members are prevented from turning by their engagement with the shank 5, but they do not 1nterfere at all with the turning of the nut. Since the wings 10 project beyond the periphery of the nut it will be readily seen that when the wrench is laid down on its side, as shown in Fig. 2, said wrench will rest on the Wings 10, thus holdin0r the periphery of the nut 7 above the surface 11 on which the wrench rests. Since the nut 7 is entirely out of contact with the surface 1,1 said nut will not be turned at all by any movement of the Wrench over the surface as would be the case if the nut rested directly on the surface.

In the preferred embodiment of my invent-ion the Wings 10 are Wider than the body portion 9 and have a sufficient extent of bearing surface at their outer endsso that they will prevent the nut from contacting with the surface 11 in any position of the wrench. I Wish to state in this connection that my improvements are not limited to the type of wrench herein illustrated, as the principle of the invention can be einbodied in almost any Wrench Where the jaw is turned by a nut or other equivalent part whether the nut is situated as shown in the drawings or is placed at the end of the Wrench handle, or in any other location. I, therefore, Wish to cover this feature broadly regardless of the particular construction of the Wrench.

In practice I propose to make the body portion 9 of each guard member of a size to substantially fill the space between the flat face 8 and the interior of the nut 7, saidl body portion having the rounded edges 12 as seen best in Fig. 2. The advantage of this construction is that the nut will operate more evenly and with less loose play than Where a comparatively large space exists between the sides 8 and the nut interior as would be the case if the nut guards Were not present.

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

l. In a Wrench, the combination with a wrench body, of a movable jaw having a screw-threaded shank, a nut screw-threaded to said shank, and a. nut guard extending through the nut and provided with Wing portions overlying the ends of the nut and projecting beyond the periphery thereof.

2. In a Wrench, the combination with a wrench body, of a movable jaw having a fiat-sided screw-threaded shank, 'a nut encircling said shank, and a U-shaped guard member extending through said nut and provided with Wings which ovellie the end thereof and extend beyond the periphery.

3. In a Wrench, the combination with a wrench body, of a movable jaw having a` screw-threaded shank provided with opposed flat sides, of a nut embracing said shank, and two guard members each having a fiat body portion overlying a` flat side of the shank and provided with laterally-extending wings or arms which embrace the nut and extend beyond the periphery thereof.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JOHN` H. VINTON.

Witnesses LOUIS C. SMITH, THOMAS J. DRUMMOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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