US1076793A - Wrench. - Google Patents

Description

0. W. SBIPEL.

WRENCH.

APPLICATION FILED FEB. 15, 1913 if if Attorneys OSCAR WILLIAM SEIPEL, F COLUMBUS, OHIO.

WRENCH.

Application filed February 15, 1913.

To all whom it may concern:

Be it known that 1, Oscar WV. SEIPEL, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented a new and useful VVre-nch, of which the following is a specification.

The present invention appertains to wrenches, and particularly to a wrench embodying a pair of jaws adjustably connected and a handle pivoted adj ustably to the jaws.

It is the object of the present invention to provide a novel and improved wrench of the character indicated, which shall be simple, compact, durable, substantial and inexpensive in construction, and which shall be serviceable, convenient and efficient in its use.

It is also the object of the present invention to provide novel means for adjustably connecting the j awe, and for adjustably connecting one of the aws or the stationary jaw and the handle.

With the foregoing general objects outlined and other objects in view, which will appear as the description proceeds, the in vention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention has been illustrated in its preferred embodiment in the accompanying drawings, wherein Figure 1 is a side elevation of the wrench, parts being broken away and the handle be ing shown in different adjusted positions by dotted lines. Fig. 2 is a sectional view taken on the line 2--2 of Fig. 1. Fig. 3 is a fragmental perspective of the outer or forward end of the handle.

Referring specifically to the drawings, the wrench embodies essentially the stationary jaw 4, the movable jaw 5 adj ustably connected thereto, and the handle 6 adjustably pivoted to the stationary jaw, and it is in the adjustable connections and other characteristics hereinafter referred to that the novelty of the invention lies. The stationary jaw & is provided with an arm or guide 7 projecting perpendicularly from its face and passing through an opening 8 in the movable j aw. This arm or guide 7 is preferably rec- Specification of Letters Patent.

Patented Oct. 28, 1913.

Serial No. 748,706.

tangular in cross section and projects from the jaw 4 intermediate its ends, the sides of the arm or guide preferably facing to ward the sides of the jaws. This arm 7 serves to guide the movable aw for parallel motion relative to the stationary jaw, and constrains the jaws against undue movement.

from the face of the movable jaw 5, there projects a stem 9, which passes slid ably through an opening 10 in the stationary jaw 4, the stem 9 projecting from the jaw 5 intermediate its ends and directly in rear of the arm 7. This stem 9 also assists in constraining the jaws for proper motion relative to each other, and the arm 7 and stem 9 are in sliding contact or have their adj oining faces flush so as to effectively brace the jaws against springing apart when an ob ject is held between the jaws. The stem 9 is preferably square or rectangular in cross section, and the free end thereof is reduced and threaded, as indicated by the numeral 11. On this threaded reduced portion 11, there is mounted a nut 12, which is preferably circular and has its periphery knurled. The periphery of the nut 12 also preferably projects beyond the sides of the stationary jaw in order to facilitate the rotation of the nut by the fingers. A. washer 13 is secured on the free or outer end of the stem 9 by means of a screw 14 and serves to limit the outward movement of the nut 12 on the stem as will be manifest. The nut 12 is adapted to rest or seat against the back of the stationary jaw 4E and serves to limit the separation of the jaws.

In order to yieldingly separate the jaws, each jaw has been provided with a socket 15 in its face, adjacent its rear end, and a coiled wire compression spring 16 is terminally seated in the said sockets between the jaws and in rear of the stem 9. This spring 16 is of a sufficient tension to forcibly separate the movable jaw from the stationary jaw, the nut 12 seating or bearing against the back of the auxiliary jaw 4t to limit the separation of the jaws. Thus, by rotating the nut 12 in one direction or the other, the movable jaw may be moved toward or from the stationary jaw, whichever is desirable or necessary. The forward or outer ends of the jaws are free and unencumbered in order that they may properly receive a nut, or other article therebetween.

In order to adjustably pivot the handle 6 to the stationary jaw 4, the said jaw has been provided with a circular ear 17 projecting from its rear end and flush with one side, the center of the said ear lying approximately in the plane of the face of the said jaw. This ear 17 is provided with a central or concentric boss 18 projecting from its inner side or face, and is also provided with a plurality of radial grooves or channels 19 in its inner face extending from the boss 18 t0 the periphery.

The handle 6 is provided with an ear or eye 20 at its forward or outer end, which car is circular in contour and is provided with a central opening 21 receiving the boss 18 snugly. The inner face of the ear 20 is provided with a plurality of radial ribs or ridges 22 adapted to interlock with the grcoves or depressions 19 of the ear 17 when the boss is flush with the outer face of the ear 20. The boss 18 in fitting snugly within the opening 21 of or being loosely embraced by the ear 20 serves to pivot the ears together, or serves to pivot the handle to the stationary jaw, the outer end of the boss being flush with the outer face of the ear 20 when the ears are interlocked. The screw 23 is threaded into the boss 18 and is provided with a large knurled head 24; of greater diameter than the boss 18 adapted to overlie or overlap the car 20, in order to hold the ears together or in interlocked positions. lVhen this screw 23 is loosened, it will be noted that the ear 20 may be slid outwardly on the boss 18 so that the ridges and grooves are out of engagement, and in which event, the handle and stationary a-w may be adjusted relative to each other, after which adjustment, the ears may be clamped together so as to lock the handle and stationary jaw in position. In this manner, the handle may be locked in alinement with the jaws, or may be adjusted at obtuse or right angles with the jaws, whichever is desirable or necessary.

In order to provide the most compact and desirable arrangement, the rear end of the movable jaw 5 is curved so as to accommodate the two ears, and the rear end of the stationary j aw 4: is also curved to accommodate the ear of the handle in order that when the jaws are in closed relation, a compact and desirable relation between the parts is provided. It is to be noted in this connection, that the jaws are each of a width equal to the combined thickness of the two overlapping ears.

Nhat is claimed is In a wrench, a pair of jaws each having a rectangular opening and an adjoining rectangular projection slidable through the opening of the other aw, the adjoining faces of the projections being flush, the end portion of one projection being reduced and threaded, a nut engaging the said reduced and threaded end and bearing against the back of the respective jaw, and a compression spring terminally socketed in the faces of the jaws in rear of the said projections.

In testimony that I claim the foregoing as my own, I have hereto aihxed my signature in the presence of two witnesses.

OSCAR WILLIAM SEIPEL.

Witnesses J. LAWRENCE PORTER, JAY J. EHLERS.

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

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