US1443064A - Wire stretcher and puller - Google Patents

Description

RAMME@ 2 SHEETS-SHEET 2 Jan. 23, 1923. L

G. M. WILSON. W1 RE STRETCHER AND FULLER. Fl LED Nov 15 1920 ltlatented dan. 223, lh.

GEORGE IVIELVIN' WILSON, 0F CALGARY, ALBERTA, CANADA.l

. WIRE STBETCHER AND FULLER.

Application led November 15, 1,920. Serial No. 424,204.

vented certain new and useful lmpi'ovements in `Wire Stretchers and Fullers, oi'

which the following is a speciiication.

This invention relates to improvements in wire stretcher and pullers, and the objects of the invention are to provide a wire puller which can be `advantageously utilized in :fencing and whereby the several strands of wire maybe pulled up to the desired tight ness before being fastened, to so arrange the puller that the action will be a step by step one, that is to say, the pulling and stretching action aiter being commenced will continue step by step until the required tension of the fence wire has been obtained and before the loose ends of the wire are connected, and to simplify the arrangements of the several parts and adapt them to better perform the functions required.

With the above and other objects in view, the invention consists essentially of the improved construction particularly described i and set forth in the following specification and accompanying drawings forming part of the same.

ln the drawings:

Figure 1 is a perspective view of the nnproved wire puller and stretcher.

Figure 2 is a side elevation of the same.

Figure 3 is an elevation of the opposite side of the wire puller to that shown in Figure 2.

Figure 4 is a side elevation of one of the wire engaging elements.

Figure 5 is a perspective view of one lever of the wire engaging element.

Figure 6 is a perspective view of the other lever of the wire engaging element.

Figure 'Y is an end view of that lever of the wire engaging element in Figure 6.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings: A represents the improved wire puller and stretcher comprising a plurality of wire engaging ele* ments B, C and D, each of the elements being connected byspring bales 4, 5 and 6, to the lever B.

Each wire engaging element consists of a pair of pivotedlevers 8 and 9, the former of which. is longer than the latter and is provided with cutaway portions 10 forming a suitable shoulder `11 and this cutaway portion 10 carries a hinge pin 12. A retaining clip 13 is secured to the back face of the lever 8, and adjacent to the end of the lever remote from the cutaway `portion 10 an oriiice 14 is provided.

The lever A is of substantially angle `shaped with the lower face 15 of one of the arms formed curvilinear and this arin is cut away to forni a curvilinear shoulder which is provided withy a plurality of serrations 16,

and adjacent to this shoulder an orifice 17 is provided with which the hinge pin 12 engages.

By referring to Figure 6 it will be seen that the lever is eccentrically pivoted relatively to the lever 8, so that the serrated shoulder 16 will be brought into contact with the shoulder v11 of the lever`8 during the rotating of the levers 8 and 9 towards each other. 1

rlhe lever 9 is provided vwith a pair of orifices 18, and the oriices 14 and 18 are engaged by the ends of the bails 4, 5 and 6, and by providing two oriiices 18 in the lever 9, an adjustment of the movement of the lever 9 to the lever 8 is thus obtained.

The bails ,have their ends offset to pass through the orilices 14 and 18, and this Vprevents the levers 8 and 9 from .turning and holds the levers in a firm position.

ln the embodiment illustrated the centre exerted on the said balls they will have a tendency to open and thereby rotate the levers 9 and 6 relatively to eac-h other thereby disengaging the serrated shoulder 16 from `the shoulder l1, and consequently liberziting the wire to' be stretched located between the said shoulders.

llhen the wire puller is in use, itis arranged with two of the pulling elements, B and C on one side of the lever E and the third pulling element D, on the other side of the lever, and in this position if there is no force applied to the lever Fl the levers 6 and 9 will open under the action of the spring bales 4, 5 and 6 and will assume the position shown by the dotted lines in Fig ure 4*.

To obtain the necessary leverage, the lever ll may be constructed to receive a removable' handle of suitable length, which can be removed when shipping the wire puller and stretcher.

This allows clearance between the scrrated shoulder 16 and the shoulder l5 to press the wire to be stretched therebetween. The ends ot the wire will be arranged in alignment and one end of the wire will pass through the elementsI B and C, while the other endwill pass through the pulling element D.

As the lever E is now actuated it will cause two of the elements to be pulled' towards each other, while the other element will pass loosely over the wire being stretched, and will engage with the wire when a reversal of the action of the lever E takes place. This operation will be better understood from the following description.

The pulling elements B and D will be primarily positively engaged with the wire to be tightened on the first movement of the lever E, and although the wire passes through the pulling element C it will not be held therein because there will be no pull applied to the levers 8 and 9 of this pulling element C during the first operation of the lever E to pull the pulling elements B and D towards each other and during this action the pulling element C will be in the position shown by the dotted lines in Figure 4.

It will be noticed that when the lever E is actuated t0 pull the pulling elements B and D together then no pull is applied to the pulling element C which is given a translatory movement along the wire, but as soon as the reverse motion of the lever E takes place then the pulling element C will engage with the wire passing therethrough while the pulling element B will be disengaged from the same, so that on the continued oscillating motion of the lever E the ends of the wire will be pulled up step by step towards each other, until tensioned to the desired extent when the adjacent ends may be joined.

t should be particularly noted that the pulling element D always has a pull applied thereto and the bale 6 of this pulling element is attached at a point adjacent to the tulcrum about which the action of the lever E takes place, so that consequently the pulling element C is always held in engagement with the wire the bales -land :3 are :iltached to the lever ll on the opposite side ol the bale G, they coiiseouently have a lorce applied thereto alternately` the pulling elements carried by the said bales engage the wire passing' therethrough alternately and permit oi" a step by step action taking place to tighten the wire. rl`he :functions et the spring clip 13 is to maintain the levers S and 9 open when primarily positioning the wire and also when disengaging the puller from the stretched wire.

From the description it will be seen that I have a wire puller and stretcher which can be utilized when inclosing land with fences, the devire being ot an extremely simple nature and not liable to go out ot repair.

As many changes could be made in the above construction and many widely diliierent embodiments oit my invention within the scope or' the claim, constructed without departing from the spirit or scope thereo'l. it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

that I claim as my invention is:

A plurality of wire engaging elements, each comprising a pair of pivoted levers` one of which is longer than the other and provided with a cut-away portion forming a shoulder, a hinged pin to which the other lever is pivoted carried by said cut-away portion, a spring retaining clip secured to the back face of the lever whereby the levers are retained in open position, and an orifice adjoining the lower end thereof, the second of said levers formed in angular' shape with a curvilinear shoulder provided with a plurality of serrations adapted to contact with the shoulder of the first lever. an oritiee adjacent thereto to engage said hinged pin` a pair ot orifices in the second lever whereby an adjustment ot the movement of this lever to the irst lever is obtained, a spring bale co-acting with each pulling element and having its ends connected to the levers, and an actuating lever having the bales pivoted thereto.

ln witness whereof I have hereunto set my hand in the presence of two witnesses.

GEORGE METVI N WILSON.

lVi tnesses:

lAiu'ns A. lilonNnY, FnANcns N onLE.

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