US2631486A - Slidable outer jaw wrench with nontraveling nut adjustment - Google Patents

Description

March 17, 1953 w. J. M GINNIS 2,631,486 SLIDABLE OUTER JAW WRENCH WITH NONTRAVELING NUT ADJUSTMENT Filed April 4, 1951 mvEr -roR ATTORNEY Patented Mar. 17, 1953 UNITED STATES PATENT OFFICE SLIDABLE OUTER JAW WRENCH WITH NONTRAVELING NUT ADJUSTMENT 1 Claim. 1

The object of this invention is to devise a novel, simplified and compact construction of a wrench which can be economically manufactured and comprises a minimum number of parts.

The movable jaw and the fixed jaw with its integral handle may be drop forged or stamped. The shank of the movable jaw is guided in its movement in the fixed jaw and a guide on the handle and also by a slot which prevents relative turning movements of the movable and fixed jaw. This slot also serves the purpose of providing a supply of lubricant and feeding it to the nut which effects the relative adjustment of the jaws. The handle is provided with a step to receive the nut.

With the foregoing and other objects in view as will hereinafter clearly appear, my invention comprehends a novel wrench.

It further comprehends a novel construction of an integral fixed jaw and handle having a step to receive the nut and having a slot to feed lubricant to the nut, said slot also having the function of preventing the turning of the shank of the movable jaw relatively to the fixed jaw.

For the purpose of illustrating the invention, I have shown in the accompanying drawings a preferred embodiment of it which in practice will give satisfactory and reliable results. It is, however, to be understood that the various instru mentalities of which the invention consists can be variously arranged and organized and the invention is not limited to the exact arrangement and organization of these instrumentalities, except by the scope of the appended claim.

Figure 1 is a perspective view of a wrench embodying my invention.

Figure 2 is a longitudinal section through the median line of the wrench.

Figure 3 is a section on line 3-3 of Figure 2.

Figure 4 is a section on line 4-4 of Figure 2.

Figure 5 is a modification showing jaws provided with jaw teeth.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings:

The wrench has a, fixed jaw I integral with a handle 2 and preferably formed by a drop forging operation. The handle has in its upper face a longitudinally extending slot 3 which leads to a step 4 in the form of a rounded recess to receive and position a sleeve nut 5. The bottom wall of the slot is rounded and opposite sides are parallel to form a guide for the shank 6 of the movable jaw I. The shank of the movable jaw is guided in a loop or bracket 8 preferably integral with the handle and located on the han- 2 dle to space the nut between the fixed jaw and the loop 8.

The fixed jaw has a substantially rectangular opening through it to receive and guide the shank of the movable jaw as shown at 9. The shank 5 is substantially rectangular in cross section with its inner and outer faces threaded as at it, and with such faces preferably having a curvature. The shank may be fixed in the movable jaw or integral therewith. The slot 3 extends beyond the inward travel of the shank to provide for the reception of a suitable lubricant.

The step forming recess 4 is in longitudinal alignment with the slot 3, and the shank of the movable jaw has only a rectilinear movement through the fixed jaw and in the slot so that the operative faces of the jaws are always in the proper gripping relationship with each other.

It is to be understood that the gripping faces of the jaws may be serrated as shown in Figure 5 to provide a better gripping engagement with a pipe.

The handle is swelled out near the fixed jaw to provide for the requisite strength at the location where the step is formed for reception of the sleeve nut.

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

In a slidable outer jaw wrench, with nontravelling nut adjustment, a handle having integral with it a fixed jaw having an opening rectangular in cross section through its head portion, said handle having a loop with a rectangular opening in longitudinal alignment with the fixed jaw opening, said handle having a longitudinally extending slot with parallel side walls extending through the loop and along and in the handle in rear of the loop and having a, step between the fixed jaw and the loop, a movable jaw having a shank extending through the loop and into the slot and prevented by the latter from rotation, and a nut in said step bearing against the rear face of the fixed jaw and the rear face of said step and threaded on said shank.

WILLIAM J. MCGINNIS.

- REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 564,513 Friede July 21, 1896 591,528 Ford Oct. 12, 1897 804,433 Robinson Nov. 14, 1905 1,380,052 Fowble May 31, 1921

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