US573370A - Wire-netting - Google Patents

Description

(No Model) H. K. SWINSGOE.

- WIRE NETTING.

. Patented Dec. 15, 1896.

2o i the wires are taken from spools.

, form.

has a tendency to distort the meshes, and the 1 ment in VVire-Netting and Methods UNITED STATES PATENT OFFICE.

HENRY Ii". swinscon, or CLINTON, MAssAonUsEr s.

WIRE-NETTING.

SP-EOIFIGA'EIGN' forming part of Letters Patent No. 573,370, dated December 15, 1896.

Application flied October 17,1892.

To all whom it may concern:

Be it known that I, HENRY K. Swnvscon, of Clinton, county of Worcester, State of Massachusetts, have invented an improveof Manufacturing the Same, of which the following description, in connection with the accompanying drawing, is a specification, like letters and figures on the drawing representing like parts. i

This invention has for its object the production of a novel Wire-netting which may be rapidly and economically made and yet have wires so twisted together asnot to 1111- twist when subjected to strain.

lleretofore it has been customary in hex- Ragonal netting to form all the joints by direct twists, and inmaking such "netting itis' necessary that one half the number of wires be wound in cop form while the other half of These cops, containing but a limited amount of wire, are incased in tubes, and as the wire is withdrawn from the interior of the cops the tension necessarily varies, while the tension on the wire coming from the spools is uni- This lack of uniformity in tension winding of the wires into cop form and the necessary stopping of the machine for renewal of cop-wire,togethcr with the heavy machinery required for rotating the cop carriers or tubes and the inclosed cops, add very materially to the cost of the netting. So, also, prior to my invention it has been customary to make hexagonal netting from wire by connecting adjacent wires alternately to the right and left by reverse twists, but for some uses, under great strains revol-5e twist-joints are not as desirable, nor obviously are they as substantial as direct twists, yet the netting having reverse twists, as stated, may be more cheaply made than the direct twists, for in the reverse-twist netting all the wires may from spools and be used in longer lengths.

In my experiments to cheapen the production of netting as compared with methods same i'rom continuous wires, my improved now known to me and yet produce a novel netting having reater strength than wholly reverse netting? have devised a netting con raining both directand reverse twists, and I havedevised a method of producing the be taken directly.

Serial No. 449,106. (No specimens.)

'method enabling me to interpose a reverse twist after a direct twist, or a series of twists composed in whole or in part of direct twists, and thereafter I i may repeat the previous twist or series of twists in backward orop- 'posite order, the direct twists having right and left hand correspondence, as may be necessary to avoid snarling of thewires.

In accordance with my method of making netting with continuous wires the twist put into said wires during the formation of meshes preceding a reverse twist may be taken out in the production of meshes following the formation of the reverse twist.

My improved netting presents continuous wires joined to the right and left by not only direct but also by reverse twists, and the direct and the reverse twists may follow "each other in any desired order, having regard only to the formation of a reverse twist or twists between twistswhich have a right and left hand correspondence. The introduction of these reverse twists enables the long loose twists then in the wires to be taken out, and consequently the wires may be continuous.

The drawing shows a piece of wire-netting embodying my invention in one simple .form,

'the reverse twist lowed by but a single direct twist.

Referring to the drawing, it shows a series of wires a b c d e f, all of which will come from spools, bobbins, or equivalent bundles or sources adapted to contain and supply wire of substantially indefinite length. i These wires, arranged parallel to each other, are twisted together, as shown, in tlie form in which I have herein chosen to illustrate my invention, in the following manner, e, in the transverse'row A of meshes the adjacent wires are twisted by direct twists, as 2, but in the next transverse row B of twists the wires are carried from the row A to the right and left and are united by reverse twists 7, while the next or third row 0 of twists are dihand twists, as 4, or twists just the reverse 'of the twists 2 in the row A, or. in other words, the twists in the rows A and O, separated bythe rowof reverse twists B, have right and left hand correspondence. In this :reverse twists. By twising the wires in this being preceded and folrect twists 4; but these twists of the row 0 insteadof being right-hand twists are left- 10 way I amenabled to produce a wire-netting showing transverse rows of, direct twists and h tated to form the row 0 of twists in a direction opposite to that of the twists in the row this twisting is to be done by machinery the said wires may be run through holes in usual twistingsegments and the said segments be rotated in one direction to form a row of direct twists-A, and then the fabric will be fed and the segments .be shifted and the row B of twist-s may be made by twisting the wires in one direction for part of the twist, then gripping the partially-formed mesh, and twisting the wire in the opposite direction by revers-' ing the movement of the segments. Then the fabric may be again fed and the segments shifted into their original position and be ro- A. In this man-ner it will be seen in the formation of the particular netting shown that in the prbduction of each third row of twists, as O, the long loose opposite twists previously put into the wire below the twisting devices in the formation of the row A are all taken out, and hence in the formation of my improved netting it is not necessary to resolve the source of supply of one wire about the other wire as when all the'mcshes are direct twists. 7

By the term direct twists Imean a twist formed by rotating the wire continuously in one direction throughout the twist, and by the term reverse twist a twist in which the wires are rotated in one and then in a reverse direction in the formation of a single twist. Reverse-twist netting, while it may be made more cheaply than direct-twist netting, is, however, obj bctionable, because of its weakness and at its liability to untwist under strain, as, for instance, the net at or near the junction of the'wives c and-(Z might be subjected to strain sufficient to cause them to be untwisted'at -r,without breaking the wire, and if the twists in the next transverse row of twists were alsorcverse twists the continued application of strain might cilect the parting of the netting for an indefinite distance and leave a large hole; but by inter spersing direct twists with the reverse twists, as herein provided for, it becomes practically impossible to part the netting for any dis tance without breaking the wire. In other words, the interposition of the direct twists adds to the security ofthe reverse twists, and theintroi'luction ol' the two kinds of twists at established intervals into one and the same fabric makes not only a better fabric, but, as stated, a cheaper fabric.

In the drawing 1 have shown in one longitudinal row of direct twists a selvage-wire h, and it will be understood that these Selvage-wires may be introduced in any longitudinal row of twists in the usual manner; and in my invention as herein embodied it will be understood that it is possible to make netting from wires of indefinite length by inierposing a reverse twist between two direct twists, one of which is twisted in an opposite direction to the other, and it is evident that I may unite wires by a series of direct twists, interpose a reverse twist, and then make another series of direct twists, each one of which shall be in the opposite direction to the twist of the first series equally distant from the reversetwist. In other words, the second series repeats the first series in backward order and opposite direction.

In my method it is not essential that earn transverse row of twists should be of only one kind of twist, for the twists may be combined in one transverse row in any desired way, i. 6., they may alternate direct and reverse, or the direct twists may not be all in the same direction.

By practicing the broad principle of my invention-which is that any series of twists of any description may be used in netting made from practically continuous wires by interposing a reverse twist and then repeat ing the series in backward order, making each twist in the opposite direction from its corresponding twist in the first seriesit is obvious that any desired combination of twists may be used. All of these combiner tions possess the advantages of the simple form of netting shown in the drawing and can be made with equal rapidity and from continuous wires.

From the foregoing description it will be obvious that my invention is not limited to the production of a netting having its direct and reverse twists distributed in the particular ordeiushown.

Having described my invention, what I claim as new, and desire to secure by Trotters Patent, is-

1. The heroin-described wire-netting com posed of a series of; continuous wires joined together in the length of the netting by direct and "reverse twists.

2. The described wire-netting composed of ing each other in predetermined order, for

the purpose described.

Intestimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY K. SWINSCOE.

\Vitnesses:

Geo. W. GREGORY, EMMA J. BENNETT.

'a series of substantially continuous wires

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