US1294699A - Wire-stretcher. - Google Patents

Description

r T. F. R. PAUL.

WIRE STHETCHER. APPLICATION FILED IuLY I2, I9I7. nENEwED IAN. I0. I9I9. 1,294,699.

Patented Feb. 18, 1919.

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THOMAS FLEGHER ROBERT PAUL, 0F IT'UNA, SASKATCHEWAN, CANADA.

WIRE-STRETCHER.

Specicaton of Letters Patent.

Patented Feb. 18, 1919.

Application led July 12, 1917, Serial No. 180,235. Renewed January 10, 1919. Serial No. 270,586.

To all whom 'it may concern;

Be it known that I, THOMAS FLEGHER ROBERT PAUL, a subject of the King 'of Great Britain, residing at Ituna, in the Province of Saskatchewan and Dominionof Canada, have invented certain new and useful Improvements in Wire-Stretchers, of which the following is a specication.

This invention relates to an improved wire stretcherV and the principal object of the invention is to provide improved means for connecting wire gripping jaws with a rotatable stem or shaft, the connecting means being so constructed that it may be easily adjusted upon the threaded shaft but may not slip when the stretcher is in use.

Another object of the invention is to so construct this carrier that it may be readily moved upon the threaded shaft and the separableV sections of the carrier then brought into engagement with the shaft, the tension of the stretched wire holding the pivoted sections of the carrier in engagement with the shaft.

This invention is illustrated in the accompanying drawings, wherein Figure 1 is a view showing the improved wire stretcher in elevation,

Fig. 2 is a sectional view taken along the line 2-2 of Fig. 1,

Fig. 3 is a sectional view taken along the line 3-3 of Fig. 1, Vand Fig. 4 is an enlarged sectional view taken along the line 4.--4 of Fig. 1.

This wire stretcher is provided with` a shaft or stem 10 which is threaded from one end and is provided at its opposite end portion with a pin 11 rotatably engaged by the socket bracket 12 from which extends chains 13 and 14 which will be passed about the post and connected. A turning bar 15 is slidably passed through the shaft 10 so that this shaft may be easily rotated when stretching a wire.

The carrier is provided with plates 16 which extend transversely of the threaded shaft 10 and are connected by bolts 17 which in addition to connecting the cross plates 16 also serve as pivot pins for the arms 18 of .the separable sections 19 forming when brought together a shaft encircling collar. This collar is internally threaded and therefore when the shaft is rotated through the medium of the turning bar 15, the carrier will move longitudinally of the shaft. In order to provide a strong connection between the separable sections of this collar there has been provided teeth 20 which meet as shown in Fig. 1 and serve to hold the two sections in the proper position with respect to each other. From each of the separable sections 19 there extends a pin 21 with which is connected a chain 22, the chain 22 being connected with the eyes 23 of the plates 24. This plate 24 carries the jaws 25 pivotally mounted as shown kat 26 and having their cooperating edge portions cut to provide teeth so that a wire positioned between the clamping jaws will be tightly engaged.

When in use, the chains 13 and 14 will be passed about a post and connected and the wire to be stretched will then be placed between the jaws 25. The jaws will be moved to engage the wire and the carrier will then be moved along the bar 10 until the two separable sections of the collar are brought together about the shaft. The threads of the ,collar will engage the threads of the shaft and the clamps will then be in position for tightening the wire. Turning of the bar 10 through the medium of the turning rod 15 will cause the carrier to move longitudinally and the wire will then be tightly stretched. After the wire has been tightly stretched, it can be secured to the post of the fence and the shaft 10 then rotated in the opposite direction to loosen the tightener and permit the clamping jaws to be released from the Iwire. It will thus be seen that with this device, the wire can be engaged and the carrier quickly moved along the shaft andthe shaft then rotated to tighten the wire.

What is claimed is 1. A wire tightener comprising a threaded shaft, means for connecting one end portion of the shaft with a support and permitting rotation of the shaft, a carrier fitting upon the shaft and having plates extending transversely of the shaft upon opposite sides thereof, bolts connecting said plates, an internally threaded shaft engaging collar having separable sections provided with arms pivotally mounted by said bolts, the contacting portions of the separable sections being cut to provide teeth, a clamp including a plate and jaws pivotally connected with the plate, and means connecting the clamp with the sections of the carrier.

2. A wire stretcher comprising a threaded shaft, a carrier positioned upon the threaded shaft and having plates extending trans- Versely of. the shaft, securing means for connecting the plates, a shaft engaging collar internally threaded and having longitudinally extending separable sections provided With arms pivotally mounted through the medium of the connecting means for said plates, means for connecting the shaft with a'support and'permitting rotation of the shaft, Wire engaging means, and means for connecting the Wire engaging means with' the separable sections of the collar.

3. A Wire stretcher comprising a threaded shaft, a carrier positioned upon the shaft and including a shaft engaging collar having separable sections, means to pivotally mount the separable sections slidably mounted upon the shaft, Wire engaging means, and flexible means connecting the Wire engaging means With the separable sec- Copies of this patent may be obtained for tions of the collarl and holding the separable `threaded shaft engaging'collal formed of separable longitudinally extending sections pivotally connected With the` carrier, a Wire engaging element, and means connecting the Wire engaging element With the. separable sections of the collar.

In testimony whereof I aHiX my signature in presence of two Witnesses. I

THOMAS FLECHER ROBERT PAUL. Witnesses:

A. K. MOLINEAUX, FRANK J. CooKsLEY.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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