US1499717A - Wrench - Google Patents

Description

July 1 1924. 1,499,717

L. O. WRIGHT WRENCH Filed June 17, 1922 Patented July 1, 1924.

LEE Warsaw, or BETSY LAYNE, KENTUCKY.

WRENCH.

Application filed June 17, 1922. serial No, 569,182.

To all whom it may concern:

Be it known that 1, LEE 0. WRIGHT, a citizen of the United States, residing at Betsy Layne, in the county of Floyd and State of Kentucky, have invented certain new and useful Improvements in Wrenches, of which the following is a specification.

This invention relates to a wrench and has for its object the production of a simple and efficient means for supporting the jaws of a wrench together in such a manner as to facilitate the moving of the jaws together when the operating handle is swung in one direction and the moving of the jaws apart when the operating handle is swung in the opposite direction.

Another object of this invention is the production of a simple and efficient wrench, the jaws of which are so arranged and assembled as to efficiently brace the, jaws while the same are being adjusted and clamped in an operative position.

Other objects and advantages of the present invention will appear throughout the following specification and claim.

In the drawings:

Figure 1 is a side elevation of the wrench.

Figure 2 is a top plan view thereof.

Figure 3 is a side elevation of the wrench in a closed position, in Figure 1 the wrench being shown in an open position.

By referring to the drawings it w ll be seen that 1 designates the handle whlch 15 provided with an elongated slot 2 at one end, terminating in an enlarged socket 3 for the purpose of permitting the hanglng of the wrench on a suitable support such as a nail, hook or the like. The handle 1 is provided with a bifurcated end 4 within which is pivotally secured, by means of a pin 5, the upper end of the primary jaw 6. The upper end 7 of the jaw 6 is reduced in thlckness to fit snugly within the bifurcated end 4 of the handle 1, as clearly shown in Figures 2 and 3 of the drawings. The primary jaw 6 is also provided with a suitable aperture 8, through which the shank 9 of the auxiliary jaw 10 extends. The primary jaw 6 is provided with a right angularly extending gripping end 11 of the usual construction and the auxiliary jaw 10 is also provided with a right-angularly extending gripping end 12, as clearly shown in Figures 1 and 2. These ends 11 and 12 are so arran ed as to efliciently grip a nut or other demos to be operated upon by the wrench.

Suitable teeth 13 are formed upon the innerfaces of the right-angularly extending portions or ends 11 and 12 of the respective jaws.

The primary jaw 6 is providedwith a thumb grip 14: at the lower corner thereof, which is knurled to facilitate the gripping thereof with the fingers. A gripping pin 15 is carried by the outer end of the bifurcated portion 4: of the handle 1 and this pin works in a transversely extending slot 16 formed near the upper or outer end of the auxiliary jaw 10. By means of this elongated slot 16, it will be seen that the handle 1 may be easily swung without fear of any binding action, justed in proper relation with respect to each other.

From the foregoing description it will be 'seen that a very simple and efficient wrench while the jaws are being adhas been produced which comprises a minimum number of parts, the respective jaws being pivotally connected to the handle in such a manner as to cause the jaws to be efficiently drawn together when the handle is swung in one direction and efficiently spread apart when the handle is swung'in the opposite direction. The auxiliary jaw 6 has an upwardly extending shank which extends substantially parallel with the down wardly extending shank of the auxiliary jaw 10. The abutting arrangement of the respective jaws, as clearly shown in Figures 1 and 3, constitutes an efficient brace for the jaws or while the wrench is being efficiently operated. It should be further understoodthat the shank 9 of the auxiliary jaw 10 is so mounted to the primary jaw 6 as to permit the same to efliciently slide without binding.

It should be further understood that certain detailed changes in the mechanical construction may be employed without departing from the spirit of the invention, so long as these changes fall within the scope of the appended claim.

What is claimed is A wrench comprising a pair of L-shaped jaws including oppositely disposed worln engaging faces and inwardly extending shanks, the inner faces of the shanks being disposed in parallel abutting relation, one of the jaws having a slot therein receiving the shank of the other jaw, an operating handle having the inner end thereof bifurcated, the inner end of one shank being re duced in thickness and fitted in the bifureated portion means for pivotally connect- 111 thi bifurcated portion of the handle, the outer end of the bifurcated portion of the handle receiving the shank of the other jaw adjacent to the jaw face thereof, said last mentioned shank being provided With a slot, and a pivot pin carried by the bifurcated the reduced inner end of said shank in portion of the handle fitted in said last men 10 tioned slot. 4

In testimony whereof I afiix my signature in presence of tWo Witnesses.

LEE 0. WRIGHT. Witnesses:

C. Z. CAMPBELL, W. F. WRIGHT.

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