US1329226A - Wire-straightening tool - Google Patents

Description

F. L. CERVENKA. WlRE STRAIGHTENING TOOL. APPLICATION FILED JULY 17,1918.

Patented J an. 27, 1920.

"nnrrnn tar-Ares PATENT OFFICE.

FRANK L. GERVENKA, OF GRANGER, TEXAS.

Application filed July .7, 1918.

To all whom it may concern:

Be it known that I, FRANK L. Gnnvnnxx, a cit'zen of the United States, and residentof Granger in the county of Williamson and State of Texas, have invented certain new and useful improvements in Wire-Straight ening Tools, of which the following is a specification.

This invention relates to improved devices for straightening wire, and particularly for straightening wire that has been used for baling hay, so that the wire can be used again.

An object of the invention is to provide an improved device of the above character which will efliciently and slidably grip the extremity of a wire to be straightened, the same being capable of quick and easy manipulation and adapted to be anchored in a suitable way to give strength and rigidity to the device, means being also provided to project through an eye or loop formed in one end of the wire to be straightened, so as to facilitate the straightening operation.

With the above objects and others in view, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of part which will be more fully described herein and set forth With particularity in the claims appendedhereto.

Reference is had to the accompanying drawings forming a part of this application, in which like reference characters indicate the corresponding parts throughout the several views, in which- Figure 1 is a perspective view of my improved wire straightening tool.

Fig. 2 is a side elevation thereof partly in section, and

Fig. 3 is a vertical section taken on the line 33 of Fig. 2, the bolt and spring being shown in elevation.

Referring to the drawings in detail, my improved wire straightening tool includes a clamp comprising a lower plate or jaw 10 having a curved attaching end 11 provided with apertures 12 adapted for securing the stationary lower jaw 10 to a suitable bench or other support. The jaw 10 is further provided with an opening 13 adjacent to its attaching end, adapted to receive an offset angular reduced extension 14 of an upper 0r pivoted jaW 15, the inner portion of Specification of Letters Patent.

VJIRE-STRAIGHTENING TOOL.

Patented Jan. 27, 1920.

Serial No. 245,320.

' which is inclined uownwardly as shown at 16 and adapted to contact with the jaw 10 therebeneath. Said jaw 15 is also provided with opposite extensions 17 depending from the portion 16 which contact with the jaw 10, thus guiding the jaw 15 during the vertical movement thereof on the pivot 14, as will be hereinafter specified.

Both of the free ends of the jaws 10 and 15 are provided with inward extensions or engaging portions 18 having broad and engaging faces 19 provided with coacting notches 20 of varying sizes so as to adapt the device to use in holding or straightening wires of different gage. The coacting notches or recesses 20 are preferably made of angular formation and relatively shallow so as to receive wires therein, the notches being little shali wer than the thickness of. the baling wire.

The jaws 10 and 15 are further provided with vertically alined openings 20 receiving the threaded stem 21 therethrough, the threaded end projecting through the opening in the lower jaw 10 and having a wing I nut or thumb nut threaded thereon with an intermediate washer 23, for securing the device in position and adjusting the tension of an extensible coil spring 24: mounted on the stem between the jaws.

The upper end of the stem projects through the opening in the upper jaw 15, said latter jaw having an enlarged opening therethrough for this purpose and also side depressions or recesses 24 on diametrically opposite sides so as to receive and lock the cam end of a cam 25 therein, when the engaging surfaces of the jaws are in clamping position. The clamp further comprises the cam 25, formed at one end of a lever or handle 26 which is pivoted as shown at 27 between the slotted upper end of the stem 21, the said slotted end being provided with bifurcations 28 for this purose.

p The operation of the device is as follows: The wire to be straightened, providing it is not kinked too much or rusted through, is inserted between the engaging portions 19 of the jaws 10 and 15, with the handle 26 forwardly displaced to permit separation of said jaws by the action of the spring 24. The lever or handle 26 is then moved rearwardly to the positions shown in Figs. 1 and 2 and the cam will then force the jaws together causing the engaging portions 19 thereof to fit the wire, against the action of the spring 24. During this operation, the cam 25 will snap into the depressions 24 and securely lock the device in clampin position. The wire is so positioned that the loop 29 thereof is adapted to project forwardly of the engaging portions of the jaws and a curved or cross pin 30 is inserted in said eye or loop and the wire drawn through the jaws so as to straighten the same for eflicient use. It is also to be understood that the wires can be straightened quickly and with facility, thereby permitting the using of all twisted and bent wire which has heretofore gone to waste and resulting in a considerable saving in metal. The device also cleans the rust from the wire and previous methods of hammering the wire are entirely overcome. It is also to be understood that in lieu of the connection between the upper and lower jaws, any suitable pivoting or hinge connection may be employed so that the upper jaw will have proper relative movement with respect to the lower jaw.

From the foregoing description taken in connection with the accompanying drawings, it is thought that a clear and comprehensive understanding of the construction, operation, and advantages of my invention may be had, and while I have shown and described the device as embodying a specific structure, I desire that it be understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is:

1. A wire straightening tool, comprising a lower jaw having a slot formed therein, an upper jaw having a reduced tongue extending through the slot to pivotally connect the upper jaw with the lower jaw and having side extensions serving as guiding means in respect to the lower jaw, the wire engaging faces of the jaws being provided with cooperating notches forming wire receiving openings when the jaws are in a closed position, a stem onnecting said jaws, resilient means on the stem normally separating the jaws, a cam carried by the stem and having an operating lever adapted to move the same into engagement with one of said jaws for forcing said jaws together, and means for adjusting the tension of said spring on the stem.

2. A wire straightening tool comprising a lower jaw and an upper jaw, the wire engaging faces of the jaws being provided with cooperating notches forming wire receiving openings when the jaws are in a closed position, one of said jaws having a slot formed in the shank portion thereof and the second jaw being provided with a reduced tongue extending through the slot to pivotally connect the jaws, side Wings guiding the pivotal movement of the jaws, resilient means yieldably holding the jaws in an open position, and means for moving the jaws to a closed position against the action of the last mentioned means.

In testimony whereof, I afix my signature hereto.

FRANK L. CERVENKA

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