USRE8978E - Improvement in apparatus for stretching and dressing mosquito-net and other fabrics - Google Patents

Description

Reissued N I. E. PALMER] Assignm' to himse l and V. S. ALLIEN. 4 Apparatus for Stretching and Dressing Mosquito-Net and other Fabrics.

'IsitAc fail n Unirtin Seams PATENT anion.

Pirlihil'illt, OF-P'HDDLETOWN, OGNNEGTICUT, ASSIGNOILBY MESNE ASSlGlThill'lJlfzl, T0 HUE'SELFAND JIGTOR S. ALLIEN, OF NEW YORK CITY.

JMPROVEMENT ill APPARATUS FOR STRETCHING AND DRESSENG MOSQUITO-NET AND OTHER FABRICS.

Specification forming part of Letters Patent No. 9505, dated March 30, 1869; Reissue No. 8,978, dated November :25 1879; application filed December 15, i878.

win it hnry concern:

V nown that l, l'SA/LC E. PALE'IER, forin ri of llaekonsaclc, in the conniyof Bergen and State of-New' Jersey, new of Middietown, in. the county of Middlesex and State of (lonncciicnt, have invented certain new and riseprcx'einenls in Apparatus for ctr-etching ii res ing Iilosenito-Eet and otherllahrics, of e. arch the following a full, clear, and exact ties ipi'ien, reference being had to' the accninpaii iing drawings, forming part of this speci lication.

This 'ilETCiltiUll consisus in the combination, in amachine for stretching or tentering mosquito-net and other fabrics, of selvage carrying and stretching devices, mechanism forim' parting motion to said devices, and a friction frame or snrizlice arranged between the said devices to rre as a drag to preventthe eent pom/ion urnniyer thefi'ihric neat running :1 ad the sides or selvagc portions, and

thereby to obtain a regular or even stretch of the ii n'ic ronglront its entire width.

invention also consists in the combina tion, in a machineferstretcliing and tentering "mos niteqietting and other fabrics, ofselvage can, and. stretching devices adapted to re; ecive the two sclvages of the fabric, and capaiile of moving independently of each other, a

dr ngeylinder, to which the fabric is delivered from the said selvage carl ying and stretching devices, and friction driving-wheels,

so applied to the said selvage carrying and. stretching devices as to he capable-of driving them at a velocity slightly higher than the dryingeyiinrler, so that the fabric may be delivered free or loose to the dryingcgrlimler,

and either of said carrying or stretching devi: may, whenever desirable, have its meiz-iperarily rctardei'l relatively to the in0- the other in an automatic manner by '.1g of the friction drivingw reels.

ovation farther consists in the combiwit ndependently-revolving selvage id stretching: rolls or wheels and rposed expanding and contractingfriction frame or structure, of stationar hulls, fitting to the said rolls or wheels and to the ends of the sale friction frame or structure, and adjnstaele upon a stationary shaft both in a len gitudinal and in an oblique direction for the purpose of varying the stretch and to adapt the apparatus to diiferent widths of fabric.

The invention also consists in the combination, with the sclvage carrying and stretching devices in a machine for stretching and ten tering fabrics, of a vertically-adjnstahle support or receptacle, so arranged in front of and below the selvage carrying and stretching devices as to admit of the heft ot' the fabric between said support or receptacle and the said devices being increased or diminished for the purpose of regulatingthe run or stretch of the fabric over the said device Tlieinvcntion also consists in the com hina tion, in a machine for stretching or tcntering and dressingmosqnito-nettin or other fabrics,

carrying and stretching devices, and operating as a sup 'iort anddrag to the center or body of the fabric, and'a heated drying-cylinder, to which the stretched or tentered fabric is delivered from the said ca i ng and stretclr ing devices and the said friction frame or surface, the said cylinder during the drying operatioii forming a support for the fabric throughout its whole width, and effecting its drying in the same condition in which it has been tentcred, and so preserving the straightness. of its threads and the evenness'of its meshes.

Figure 1 in the accompanying drawings rcpreseiiis a vertical. longitudinal section of the principal parts of a stretching and dressing apparatns constructed according to my i nventicn. Fig. 2 isa plan of thesame. Fig.3 isa transverse section of the same through one oithc sr-lx 'age carrg in g and stretching rolls or cylinders and one end of the friction frame or stmctnre, that, in connection with the said rolls, serves to stretch the fabric as it passes over them.

T is the framing of the machine supporting the continuously -opcrating selvage carrying and stretching devices L U,- the intermediate friction device or surface, and the revolving dryig'ig-eylinder D.

.tion to suit diilerent widths of fabric and to effect variation in the stretch. The said frame is stationary when set for operation, and is represented as of an arched form, (see Fig. 1,) c'onformingsubstantially to the selrage-carrying devices; but it might be of fiat form.

Thefrietion surface or device, by serving as a drag to the body or center portion of the fabric as the latter is carried over it by the continnouslyoperatin sclvage carryin and stretching devices 0 U, prevents said center portion from running ahead, as it is otherwise apt to do, of the ed ges or selvages, and thereby causes the stretching to be performed evcniy throughout the whole width of the fabric.

The selvage carrying and stretching devices.

' 0 maybe of any suitable endless character,

but are here shown as of circular ;shape, constitutiug selvage-fceding and fabric-stretching rolls, whecls,or cylinders, they heiug, provided with card-cl0thing,- I) Z) on their peripheries, to secure a proper hold on the l'abric.

It is desirable in some cases that these scivagc-carrying and stretching devices or rolls G 0 should travel at a somewhat greater veloc' ity than the steam or other drying cylinders 1), so thatthe fabric s, in passing from the former to the latter, will be delivered without any longitudinal tension to the dryiug-cylin der, winch is not designed to exert anystretchlug action oreilect, but, in addition to its dry: ing function, simply to preserve the fabric at the stretch pnn'iously given it.

E is a stationary shaft, mounted upon the framing T, to support the revolving carrying nnd stretching rolls or wheels 0 i), and having sccnrcd upon it two hubs, F F, which are formed, as shown in section in Fig. 3, with 'l'evcrsely-tnpcrin t passages c hrough them, for the purpose oi varying the oblique posi tion of said hubs on the shaft I l, with which they are made stationary by set or locking screws d d. These hubs F l! extend through the ends or heads li ioi' the stretching or dragging frame and through the navcs or cen ters of the sclvngc-rolls U (l, whi h a e arranged to freely and indepeiuleutly rotate on said hubs.

Thus it will he seen that on slacking" the screws d it facility is ailhrded for either expanding or contracting lhe strctchii:gd'raine A, and i'or varying the length. of the entire stretching surl'ncc or surfaces a ,iihe back, relatively to lhc front, by varying the obliquity oi the ends ll 1! and sclvageioils U Q to suit difl'crent widths of fabric, and for increasing or diminishing the amount of stretch, which amount is more or less, in proportion as the carrying-rolls, are set more or less divergent from each other,

To provide for the variation of the direc genes of the heads 13 B with that of the can rying1olls, the slats A A are connected with the said heads iii a pivotal manner, as shown at 7; p in Fig. 2. l

The selvage carrying and stretching rolls (3 G are shown as driven by friction-wheeis G G, acting on their peripheries. These fricti oil-wheels are driven. by or through a pulley, H, arran g'cd on. th -ir shaft to rotate at a speed rhich will give to the said rolls or wheels C Cl a slightly higher velocity than the drying-cylinder, for the purpose or" delivering; the fabric free from tension to the drying-cylinder.

By arranging the selvageroiie to move independently of each other, and driving them by friction wheels instead of by toothed gearing, allows automatically the motion of either selvage-roli to be temporarily retarded relatively to the motion of the other, or the motion of both to be temporarily retarded relatively to that of the dryirig-cylinder, "whenever it may be desirable or necessary.

The shaft 1 ot the friction-wheel's G G is made in sections and jointed, as shown at e c in Fig. 2, to admit alike of the obliquity of the end sections of said shaft and ot the Wheels G G being changed to suit variations in the obliquity of the selvagcrolls (J G, and which may be done by sliding in. or out the standard J, that carries the center section oi the shatt I, and also to admit of either or both friction-wheels (i G, at pleasure, being thrown into or slipped out of drivingcontacti ththe indepeiulently-huue sclva-ge-rolis G so that only one or both of the selvagerr-ills may he driven to eiiect iced well as etch or the fabric, or either or both of the sanw b left simply to rotate with and by the past e oi the fabric over it or them, whereby the run oi either or both salvage portions relatively to the center or body of the fabric or to each other may be regulated to the greatest nicety to secure a uniibrmity in the stretch throughout the width of the fabric.

This latter adjustment ot the friction-Wheels to make them drivers or not, as required, may be cii'ccted by suspending the outer ends of the end sections of the shalt I in raising and lowering stirrnps or frames K, adjustable by screws ff from above.

The fabric to be stretched is to he laid or placed on a support arranged in front ot the selvag'e carrying and stretching devices, and below the horizontal line where the selvage carrying and stretching devices on the two sides of the machine approach nearest to each other, which is the line on which the fabric is first received by the said devices.

The support; so nrrangcd i'or the fabric rcpreseuted in the drawings consists of a platform or rcccptacle,-L, which is represented as suspended by ropes q and pulleys U, but which may be otherwise so suspended at its timely saws e opposite sides that it maybe raised and low-j cred either uniformly at both sides or one side more than the other. By thus placing the fabric on a support below where it received by the stretching devices, the portion of" the fabric which is at any time passing upward from the said support hangs from the stretching devices, so that its own weight acts as a drag and tends to straighten it before-its re; 'ception by the stretching devices, and it is 'morceasily directed to the said devices by the attendant or attendant-s. By adjustil'ig the receptacle L higher or lower the weight of the fabric so operating may be diminished or increased, as may be found desirable; and by raising or lowering one end of the support more than the other the weight of the fabric may be made greater at or toward one selvage or the other, which may be desirable in some casesto regulate the feed or drag of the two selvages.

The drying cylinder 1) represented is a close steam heated cylinder of the ordinary construction, except-that it is furnished with teeth and poin ts, as hereinafter described. I

- prefer to arrange it as close as practicable to the selvage carrying rolls or wheels C O, in order that the stretch given to the different parts of the fabric may be set or retained by the drying operation.

1n the machine represented the said'cvlindcr is arranged so close to the sclrage-carr .v ,ing rolls or wheels 0 G that there is only just room for the fabric to pass between them. glihe said rolls or wheels are so arranged obliqucly to each other that the parts of their two peripheries which are farthest apart, and

where thelateral st-rctchingoftheiabric is completed, are the parts in most immediate prov-- imity to the drying-cylii'ider, so that the fabric is deliveredtherefrom to the drying-cylindcr without any opportunity for the lateral stretch to be lost, and hence the lateral stretch is retained in drying. The fabric may pass from the drying-cylinder 1) directly to the take-up rolls V V above, or may, before passing to the take-up rolls, be run over or under any additional number of drying-cylinders.

1. The combination, in a machine for stretching or tentering mosquitometting or other fabrics, of carrying or stretching devices for operating on the fabric near the selvages thereof, mechanism'for imparting motion to the said carrying and stretching devices, and a friction frame or surface operating as a support and dragto the center or body of the fabric between the said carrying, and stretching devices, substantially as herein specified.

2. The combination, in a machine for stretching or tente'ring mosquito-netting or other fabrics, of indcpendcntlyhun g sclvage carr ing and stretching devices for the two sides of the fabric, a dr dug-cylinder to which the stretched or tentered fabric is delivered from the said: devices, and friction-wheels 'speeded to drive the said devices at a higher velocity than the drying -cylinder, substantially herein described, for the purpose set forth.

3. The combination, with sewage-carrying rolls or wheels rotating independently of each other on a fixed shaft,,and with an intermediateexpandiu g and eontractiu g stretching or draggingsiramc, of. stationary hubs fitted to the said shaft, with reversely-tapering passages, and adjustable upon the said shaft, substantially as and for the purpose herein set forth.

' 4. The combination, with the'selvage carry ing and stretching devices in a machinefbr stretching and tentering fabrics, of a vertically-adjustable support arranged below the said carrying and stretching devices, substantially as and for the purpose herein described.

5. The combination, in a machine for stretching .or tentering and. dressing mosquito-netting or other fabrics, of carying and stretch ing devices for o lcratii'ig on the fabric near the selvages thereof, mechanism for imparting motion to'the said. carrying and stretch- .ing devices, a friction frame or surface arranged betwe-cn the said carrying and stretching devices and operating as a support and drag to the center or body of the fabric, and a heated dryiiig-cylinder to which the stretched or tcntcred fabric is delivered from the said carrying and stretching devices and the said friction frame or surface, substantially as herein specified.

Isaac-Ln. PALlll'ER. W itnesscs T. J. KEANE,- E. P. Jnssnr.

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