US1507197A - Wrench - Google Patents

Description

Sept. 2, 1924. 1,507.19?

A. NEAL.

WRENCH Filed snt. 13, 1922 INVENTOR FL 85/? T NEflL ATTORNEY Patented Sept, 2, 1924.

ALBERT NEAL, OF KOKOMO, INDIANA.

Application filed September 1-3, 1922. Serial No. 588,007.

T 0 aZZ whom it may concern Be it known that I, ALBERT NEAL, a citizen of the United States, residing at Kokonio, in the county of Howard and State of Indiana, have invented certain new and useful Improvements in renches, of which the following is a specification.

This invention relates to wrenches and particularly to that class adapted to be used. for tightening or loosening'nuts, bolts and the like, and one feature of the invention is the provision of a fixed aw and a movable jaw with means associated with the handle of the wrench for operating the movable jaw to position it towards or from the fixed A further feature of the invention is in so constructing the fixed jaw and parts of the handle structure that the openings in the fixed jaw will form a pivot bearing for extensions on the handle section.

A further feature of the invention is the provision of a crank pin adapted to co-operate with a slot in the movable jaw whereby when the handle is swung in the arc of a circle on its pivot the movable jaw will be shifted towards or from the fixed jaw.

A further feature of the invention is the provision of a handle formed in sections and means for connecting the sections together so that the handle portion may be readily attached to or removed from engagement with the fixed jaw,

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawings,

Figure 1 is a perspective view of the wrench ready to be applied to use,

Figure 2 is a side elevation thereof showing the movable aw positioned adjacent the fixed jaw as when engaging an object,

Figure 3 is an elevation of the jaw portions of the wrench with the handle portion removed,

Figure 4 is a sectional. view as seen on line 4l4:, Figure 1.

Figure 5 is a detail edge elevation of the handle structure, and

Figure 6 is a perspective view of the movable jaw.

Referring to the drawings. 1 and 2 indicate respectively the fixed and movable aws of the wrench, the movable jaw 2 having a shank S'which extends at right angles to the trend of the movable aw 2 and is entered in a slot 42 extending from edge to edge through the fixed jaw 1, the slot being so arranged that the movable jaw may slide towards or from the fixed jaw.

The movable jaw 2 is adjusted back and forth for engaging the movable and fixed jaws with an object through the medium of a handle .5 which is preferably formed of two companion sections, the upper ends of which 'stantially flush with the side faces of the shank portion of the movable jaw.

Extending transversely through the heads 6 and eccentrically of the axes thereof is a crack pin 8 which passes through an opening 9 in the shank 3, said opening 9 preferably extending at an angle to the vertical plane of the shank so that when the handle 5 is swung to the right or left the heads 6 and crank pin 8 will act as an eccentric on the movable jaw through the inclination of the opening 9 and move said jaw towards or from the fixed aw. The two sections of the handle are secured together by one or more screws or rivets 10 which pass transversely through the two sections of the handle and by forming the handle in this manner it can be readily assembled with the fixed jaw by first placing the two sections of the handle on opposite faces of the fixed jaw and enter ing the head portions 6 thereof in the bores 7, and when the two portions of the handle are brought together they are secured together by the screws or rivets. The shank portion of the movable aw is then entered in the slot 4 and moved inwardly until the opening 9 comes in registration with the opening through the heads 6 for the reception of the crank pin 8 after which the crank pin is secured in the heads and through the opening 9. The two sections of the handle are then secured together when the wrench is ready for use.

In applying the wrench to use the handle 5 is positioned as shown in Figure 1 and the jaws entered on opposite sides of the object to be turned. The handle 5 is then swung laterally as shown in Figure 2 of the drawings until the jaws are securely clamped against the object to be turned when by continued pressure against the hanvention, what I claim' as new and desire to thereof and intersecting said bores, a movdle 5 the object will be rotated. For reverse rotation of the object the position of the wrench is reversed so that the pull against the handle will be in the opposite di rection. The swinging movement of said handle 5 is limited by shoulders 11 and 12. By providing the heads 6 so that they will enter the bores 7 of the fixed jaw a perfect fulcrum will be provided and the strain on the parts of the wrench reduced to a minimum owing to the diameter of the heads and themanner of operating the mov able jaw through the medium of the crank in. v a a It will likewise be seen that in; view of the simplicity of the device it can be very cheaply manufactured and readily assembled, and when applied to use will be positive and effective in its operation.

Having thus fully described my said insecure by Letters Patent, is:

,1. In a wrench, a fixed jaw having circular bores extending from side to side thereof, and a slot extending from edge to edge able jaw having a shank entering said slot and housed therein, saids hank having an opening the'rethrough, a handle having circular heads atone end bifurcated to fit on opposite sides of said shankand within said bores, said heads pivoting the handle an inclined opening therethrough, a'two part-handle having circular heads at one end adapted to enter the bores of the fixed jaw, a crank pin carried by said heads extending through theopening in the shank of the movable jaw, and means for secur,

ing the parts of thehandle together. In witness whereof, I have-hereunto. set my hand and seal at Indianapolis, Indiana, this 11th day of September, A. D. nineteen hundred and twenty-two. 7

ALBERT NEAL) ['L, 5.]

Witnesses;

M. L. SHULER, 4

MARGARET E. GAMBLYN.

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