US1041727A - Wire-stretcher. - Google Patents

Description

P. 'A'.' BERRY. WIRE STRBTCHER. APPLICATION FILED D30. 20, 1910.

1,041,727, Patented km. 22, 1912.

I ATTORNEY PHIL IP annnnson BERRY, or ooarroma, TEXAS.

WIRESTRETCHEB.

Specification of Letters Patent.

Patented Oct. 22,1912.

Application filed December 20, 1910. Serial No. 598,428.

To all whom it may concern.-

Be it known that I, PHILLIP ANDERSON BERRY, citizen of the United States, residing at Co-ahoma, in the county of Howard and State of Texas, have invented cert-ainnew and useful Improvements in Wire- Stretchers, of which the following is a specification.

This invention has particular relation to wire stretchers of the lever type.

The object of the invention is to provide a wire stretcher comprising a handle bar at the end of which an ofl-set yoke is provided and particularly the provision of a rigid fulcrum arm extending laterally from the yoke and a central spur at the end of the yoke disposed in a fork formed by hook,

arms. 1

Finally the object of the invention is to provide means of the character described that will be strong, durable, efficient, and easy of operation, simple and comparatively inexpensive to construct, and also in which the several parts will not be likely to get out of working order.

With the above and other objects in view, the invention has relation to certain novel features of construct-ion and operation, an example of which is described in this specification and illustrated in the accompanying drawings, wherein:

Figure 1. is an elevation of the stretcher, Fig. 2, is a plan view showing the stretcher in position before stretching the wire, Fig. 3. is a similar view showing the parts after the wire is stretched, Fig. 4. is an elevation showing the stretcher in position for a sec-' ond stretch, and Fig. 5. is a detail of the wire claw.

In the drawings the numeral 1 designates an elongated handle or lever bar having at one end a curved yoke member 2. This member is disposed practically entirely on one side of the bar, and has a deep curved portion 3, so that at the intersection of the bar and said portion a sharper fulcrum point or edge 4 is produced.

About midway of the yoke a fulcrum arm 5 projecting laterally therefrom, is provided. This arm is formed rigid on the yoke and may be slightly curved. At its free end the arm has a hook 6 adapted to engage the wire. The yoke terminates in a spur 7 on each side of which a curved arm 8 terminating in a hook 9 is provided. The

arms 8 are rigid on the yoke and form a fork at the end thereof.

On the bar 1 near the yoke a wire receiving claw 10 is pivoted. This claw is loose on a bolt 11 passing through the bar and held by a nut 12, a washer 13 being interposed between the claw and the bar. The claw must be free to turn or rotate on either side of the bar. Near the end of the bar opposite to'that carrying the claw, a hook 14: is pivotally attached.

In using the wire stretcher it is first placed in the position shown in Fig. 2 and the wire to be stretched is engaged in the claw 10. The stretcher is swung around the postto the position shown in Fig. 3, the fulcrum edge 4 coming into use during the latter part of the stroke. After the stroke is completed the hook 6 of the arm 5 is engaged over the wire and the latter is thus held in position for stapling. Ordinarily this operation will stretch the wire to the desired degree and take up the slack. However should further stretching of the wire be necessary the stretcher is tilted downwardly until the arm 5 can engage the post, as shown in Fig. 4. The arm 5 then serves as a fulcrum and the lever is swung into a horizontal posit-ion. One of the hooks 9 is then adapted to engage the wire and hold the same for stapling if so desired. A still further stretching of the wire can be accomplished by tilting the stretcher until the spur 7 engages the post with the fork formed by the arms 8 embracing the post. The lever is then swung into a horizontal position to stretch the wire and the hook 14L engaged over an adjacent wire if one is already in position so that the wire may be stapled, otherwise the stretcher is held by the operator while stapling.

It will be noted that as the bar 1 is swung in the various operations the claw 10 rotates and is thus always in line with the wire. As previously mentioned the claw is removable and may be placed on either side of the bar. If one wire has not been stretched and fastened the operator may not be able to hold the stretcher when the fork is used as a fulcrum as described at the end of the pre ceding paragraph. In such case the wire is disengaged from the claw and then engaged at a point nearer its fastened end after which the operations described in connection with Figs. 2, 3 and 4 may be used.

What I claim is:

1. In a wire stretcher, a bar, a curved yoke connected therewith and extending in the same plane, a fulcrum formed by the intersection of the bar and curved yoke,

, a fork upon the end of said curved yoke,

hooks upon the extremities of said fork, a spur in the center of said fork, an arm provided with a hook formed upon the yoke intermediate of its ends, and a wire engaging claw pivotally mounted upon said bar.

2. In a Wire stretcher, a bar, a curved yoke integral therewith and extending in the same plane, a fulcrum edge at the junction of said bar and yoke, said yoke being provided with a fork having hooks upon its extremities and further provided with a spur disposed centrally within the fork, a rigid fulcrum arm provided with a hook upon its extremity extending laterally from said yoke intermediate of its ends, a hook rigidly connected wlth said bar mterme- .diate of its ends and a claw pivoted upon PHILLIP ANDERSON BERRY.

Witnesses:

L. E. KI ARD, J. L. JOHNSON.

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

Washington, D. C. V

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