US395892A - Process of forming fence-wire barbs - Google Patents

Description

(NoModeL) 3 Sheets-Sheet 1. W. GENT.

PROGESS OF FORMING FENCE WIRE BARBS. No. 395,892. Patented Jan. 8, 1889.

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W. GENTi PROCESS OF FORMING FENCE WIRE BARBS.

Patented Jan. 8 1889.

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PROCESS OF FORMING FENCE WIRE BARBS. No. 395,892. Patented Jan. 8, 1889.

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UNITED STATES PATENT @EETCE.

\VILLIAM GENT, OF ROCKFORD, ASSIGNOR TO l-IIRAM ELLIVOOD, OF DE KALB, ILLINOIS.

PROCESS OF FORMING FENCE-WIRE BARBs.

SPECIFICATION forming part of Letters Patent No. 395,892, dated January 8, 1889.

Application filed April 16, 1887. $erial No. 235.042. (N model.) 7

To all 112 mm if may (u/worn.-

Be it known that 1, WILLIAM GENT, a citizen of the United States, residing at Rock- 1 ford, in the county of \Vinnebago and State of j Illinois, have invented a new and useful Pro- 5 cess of Forming Fence-Wire Barbs, which I the longitudinal wire in such manner that it 1 shall maintain its position, and not be liable I 5 to be turned or twisted upon the wire; secondly, the provision of a sharp or needle point, which shall. be elfcetive in repelling stock. The form of barb which has been found to maintain its position upon the longi- 2o tudinal wire most satisfactorily is the barb made from sheet metal; but ithas been found impracticable with due regard to economy of manufacture to give the barb made from. sheet metal. sufficiently acute points to perround and pointed ends shall project thereform the functions required of fence-barbs. It is of course possible to procure'a sharp point upon a sheet-metal barb by filing or grinding after the cutting of the barb; but in practicalmanufacture this operation of filing 0 or grinding is impracticable, it being necessary, in order to produce barb fence-wire at current market rates, to form and sharpen the barb at a single operation. In consequence of this necessity the sheet-metal barb,

5 although it possesses considerable advantages over the round barb in the matter of a secure bearing or setting upon the longitudinal wire, has given way to the barb formed of round wire, in which the sharp or needle point is ob- 0 tained by a single diagonal cut or shear, and the ingenuity of inventors in this line has been principally devoted to securing the proper firmness of setting by wrapping the barb about the longitudinal wire or wires in various shapes and convolutions, and to overcoming in this way the natural inaptitude of a round barb-wire for secure fastening upon the longitudinal fence-wire.

My present invention has for its object the production of a barb which shall combine the several advantages of the fiat and the round barb; and to that end I have invented a process of. manufacturing barbs out of round wire and applying them to a longitudinal strand entirely distiimt and apart from methods heretofore employed for manufacturingand securing round-wire barbs to longitudinal strands, wherebyl obtain a fence made entirely of round wire, and in which the setting of the barbs upon the longitudinal strands is as firm and secure as though the barbs were made originally of sheet metal, and with a simplicity of construction equal to that of a fence having sheet-metal. barbs.

To this end my invention consists in flattening the wire from which the barbs are made for short distances at intervals of its length, round portions being left between adjoining flattened portions, in dividing said wire into barbs, by diagonally shearing the round parts left between the flattened parts, and applying the barbs so obtained to the longitudinal strand by wrapping them about the strand in such manner that the flattened portion shall rest against the longitudinal strand and the from, forming the repelling points orbarbs of the fence.

In the drawings annexed hereto and forming a part of this specification, I have shown a mechanism adapted to carry out the process above referred to, said mechanism being one of many equivalent forms which might be devised for the purpose.

111 the drawings, Figure 1 is a plan view of the machine; Fig. 2, a side elevation, a portion thereof being removed and a part being in section on the lines cu m, Fig. "Fig. 3 is a front view of the machine. Fig. at shows the barb wrapped about the wire, and Fig. 5 illustrates the wrapping of the barb.

Bases A support perpendicular standards A, upon which followers A" slide up and down, these followers being supported by helical springs A coiled about the standards A and resting upon the bLHOS A. A top piece, A rests upon and secures together the upper ends of the standards A. The position of the followers A" with reference to the basesA is determined by two screw-shafts, D, screw-threaded into top piece, A and bearing upon followers A whereby said follow= IOO ' til it comes between the shears ll Il, which are operated at suitable intei'mls by means of cam or other appropriate connections with the main shaft b, so astoseverthebarbavire diagonally at each point where the round wire 1 is lett between the tlatte1'1ed portions, thus 1 producing a barb having at its center a itlattened portion and at each end a round portion provided at each end with a sharp or needle point. This barb may he twisted around the longitudinrd strand of tence-wire trtpresentwl in the drawings by the letter Journaled in bases A is the shal't ll, carrying a roller, 13'. preferably olf chilled iron, to which is secured by tap-bolts l' a gearwheel, l". in the followers A, and has attached thereto a second roller, preferably otehillcd iron,the outer (.ylindrieal snrlaec of which is ribbed longitudinally. This roller C hasconnected with it by means of tap-bolts a gear wheel, C, adapted to mesh with gear-wheel B. Tubular guides l1 are provided for di recting the wire from which barbs are to be made simultancously with the shearing or subsequently thereto by the twisting mechanism l 1 or other appropriate means.

A second shatt', is journaled 1 between the rollers, and a tubulargu idc. (1, for j directing the course oi? the wire after it has left the rollers. In front; of these rollers and the several devices described. are located shears ll II, [or severing the barbs, at the the same time giving them the desired needle-point by means of a diagonal cut, twisting mechanism I, for twisting the barb about the longitudinal 't'ence-wire, and l'eed mechanism J, for feeding on the longitudinal strand, that the barbs maybe applied to it at proper intervals. These several parts of the machine are of ordinary construction, and being well-known to persons skilled in. the art olf manufacturi11g barbwire, do not require detailed description in this specitication.

To operate the machine, the wire .l'rom which f the barbs are to be made is inserted between the rollers ll these rollershaving been previously adjusted to thci r relative positions. Power is applied to one of the sl'n'it'ts, preferably l3. The barb-wire is fed tor\\"ard either by the friction between it and the rollers or by independent means, and each of. the ribs or projections formed upon the outer eylindrical face of the roller produces a tlattening' or indentation upon the wire these ribs being each of a proper length to llatten such a portion of the wire as may be sut'tieient to wrap about the strand ol. longitudinal wire, and the ribs twingseparated from each othert'rom center to center by a distance equal to the length of the desired barb. The effect upon the wire will obviously be to produce a succession of flattened portions separated by round portions. This wire isithen pushed forward 11nlly this process l obtain from a round. wire a barb which, so far as its capability of permanent and secure setting upon a longitudi nal wire is concerned, has all the advantages of a barb made from sheet metal, and which at the same time has preserved the capability of' takinga needle-point from the singlco mration of shearing, and when this barb has been wound around the hmgittulinal strand Ihave obtained a tencewire which, in security of l the barb and el't'eetiveness in repelling stock,

is equal to any known l'e1'1cewir while at the same time it rivals every known term of barb l'ence wire in simplicity and economy of construetion, presenting a combination of effectiveness and cheapness not heretofore oh taincd. 1

As will be observed, the machine which I have described will have a teinleney to flatten the wire on both sides, tho1'1gh, perhaps, to a greatca' degree upon one side than the other. It is obvious that; by constructing the lower roller, 3, with a cireumt'erential groove titted to the wire the flattening el'l'eet may be confined to one side oi the barb. T1 is innnate rial to my present invention whetherthebarb tlattened on one side or both.

.llaving thus described my in vent ion, whatl claim, and desire to protect b v lletters Patent, is

The method ot. [forming and applying barbs to the supportiug-wires in wire-fencing, which consists in flattening the round wire from which the lntrbs are to be l'ormed at certain interv.-1ls thronghmlt; its length, then coiling the same at the foremost flattened portion around the s'u 'iporting-wire, and simultaneonsly or subsequently severing the wire at; the round portion between the flattened parts by a diagonal cut to form thebarbs, and continuing the operation, substantially as described.

WM. GENT.

Witnesses:

L. L. llltiininstnr, HENRY L. 1 mm.

TOO

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