US1990860A - Stock roll - Google Patents

Description

l. H. J. ELLswORTH- STOCK ROLL Filed June s, 1933 Feu-12, 193s.

ngnonnnenu, closcneoaoa Patented Feb. 12, 1935 UNITED STATES STOCK ROLL :Ira J. Ellsworth, Medford, Mass., assignor of t one-half to Edward D. Schive, Medford, Mass.

f l Application June 30, 1933, serial No. 678,503

4 claims. V(o1. 242-68) This invention relates to stock rolls particularly of the type used in factories and textile mills for winding relativelywide sheet material suchfas cloth, paper or rubberized fabric. An important 5 obj ect of the invention is to provide a roll having means upon its circumference for electing engagement of the sheet material with the roll while the roll is irl-motion and for-eliminating appreciable slippage of the materialupon the roll.

One form of stock roll in extensive use at the present time is composed of wood having a hollow metal lcore adapted to accommodate a square driving shaft or mandrelv forr rotating theV roll. Such a roll is not entirely satisfactory, hower'fer, for the reason that its surface Vspon wearssmooth making it necessary when starting the winding of stock thereon to rotate the roll slowly by'hand until sufficient material has been wrappednpon the roll to cause it to bind thereon without 20. slipping before the mandrel is kconnected to a source of power for winding theremamder of the stock at regular machine speed.A Not only is this a slow and laborious task, but wooden rolls are also objectionable because they do not satisfactorily withstand the rough `usage to which they are ordinarily subjected in service. Not infrequently after a comparatively short period of use the rolls exhibit signs of warping, cracking or splintering, whichv defects, if .they escape the timely observation of the attendant, result in the uneven winding-of the'material and often cause injury to the material. While an attempt has been made to overcome these objections by covering thesurfaces of the rolls with cloth facings, this has not been successful since the facings quickly wear away lrequiring frequent replace-V ment. i Y

Stock rolls made of metal have also been used to some extent and while presenting a more durable construction compared with wooden rolls the smooth polished surface of` the metal rolls have, up to this time, required the provision of some manipulative means for attaching the end of the material to the roll to avoidY excessive slippage during winding, and such means have generally proved relatively troublesome and timeconsuming in their operation.

My invention aims to overcome the above objections by providing a stock roll of rigid construction on which the stock can be easily started at the beginning of a winding operation. For accomplishing this purpose the roll is provided upon itsrcircumference with a multitude of small projecting points or tines, against which the material may be pressed while the roll is in motion and which cause the material to adhere to the roll without substantial slippage.

According to the preferredvform of my invention, the roll is composed of a metal cylinder whichv is free vfrom splitting, warping and splinter- 5 ing as may occur inf the case of wooden rolls, having a removable circumferential sleeve provided with pointsdening in effect'aseries of roughened areas spaced about the circumference of the, sleeve the arrangement being such that as 10 the points ofthe roughened areas-become dull and worn, the sleeve may be removed from the roll and a new one inserted to take its place. Preferably the construction is such that Athe sleeve may be slid lengthwise `upon and in interlocking enl5 gagement with the roll to preventrelative rotation therebetween. l

y Theeinvention will V.be better understood from the following detailed description of a stock roll representing a preferred embodimentof the in- 20 vention, reference being had to the accompanying drawinginwhich: Y

Figure 1 is a side view of the roll in part sectional and in part elevational;

l Figure 2 is an end View of the roll of Fig. 1; lFigure 34 is a perspective View of the roll with the sleeve shown removed; v -V Y Figure 4-is a fragmentary Lview of the sleeve showing the shape of the projections constitutingl its roughened area; y

Figure 5 is a cross-section of-one end of a modiiied form of stock roll; andv v Figure 6 is a transverse cross-section of the roll taken on the line 6 6 of Fig. 5.

Referring to Fig. 1, the stock roll R. comprises a metal winding cylinder 1 provided with an outer circumferential sleeve 2 snugly encircling the same. Extending` longitudinally through the center of the cylinder is a hollow metal tube 3 of square Ymoss-section having its ends passing through and supported within openings in end plates 4; The'ends of the metal tube are welded to the end plates and the end platesV are in turn welded to the interior of the cylinder 1, For supporting lthe intermediate portion of the tube 3 there' is provided va series of spacer plates 5 surrounding the tube and arranged at spaced intervals upon'the'interior of the cylinder, to which they are suitably welded. The tube 3 is of a shape correspondingl to but slightly larger than the mandrel which is adapted to be passed therethrough when the roll is placed in the machine and the tube acts as a guide for facilitating the introduction of the mandrel through the'roll. The mandrel customarily has a pulley mounted upon one of its ends for engagement with a driving belt for rotating the roll.

Extending lengthwise along the circumference of the cylinder l andY completely throughV its wall y is a straight slot 8. The peripheral portions of the end plates 4 and the spacer platesk 5 adjacent this slot are formed with notches 9, as best shown in Figs. 2 and 3, so Vas to afford a clearance pas- Y sage through the cylinder immediately below the slot.

The sleeve 2 is made of a section of relatively thin metal rolled into cylindrical shape to embrace the cylinder 1 and having its ends brought together and then reversely bent so as to YformV hooks engaging the opposite Wallsof the slot 8;Y

These hooks together in cross-sectionrdene'a T- shaped key member which passes through the slot and locks the sleeve to the cylinder. VBy thisY construction the sleeve is prevented fromturning upon the cylinder but may be removed from the cylinder and replaced thereon by sliding it longitudinally along the cylinder.; as indicated in Fig.3." Y

Upon a perfectly smooth metal roll, stock cannot be Vsatisfactorily wound because Vthe inner convolution of the material has atendency to slipl upon the almost'frictionless surface'of the roll. Therefore inthe past when material has been wound upon metal rolls it has been the customary practice to provide means for locking the end of the material tothe rolll before starting to wind.

This ordinarilyrequires so much time that Vthel machine withwhich the roll is associated, as for example a textile machine, must vbe 'stopped to prevent an excessive amount'of material from feeding out of the machine during the periodV in which the end of the material is being attached to the roll. According to my invention I am enabled to avoid interrupting the operation of the machine whilechanging over lfrom one roll to another by providingV means for,y quickly engaging the end of the material with the'roll during its rotation To this end the -sleeve 2Y is provided with a series of roughened. areas 11 spaced about its circumference, each area being composed'of a multitude of upstanding points 10 arranged Vin rowsextending lengthwise of the sleevefas best shown in Fig. 3. These points desirably may-be Y produced by pricking the sleeve from its interior outwardly with an awl or other sharp instrument toform small apertures surrounded by short tines or burrs which, when the material is pressed down upon the sleeve at the beginning of a lwinding operation, embed themselves'in the materiale-but not sufhciently'far soY as to cause injury theretoand cause it to cling to the sleeve without slipping as the winding proceeds. These projections are shown on an exaggerated scale in the enlarged 6o fragmentary view of Fig. 4. Because of the short interval required for YmakingY attachment of the material to the roll themachinemay beV maintained in operation whilerone roll is being replaced by another inthe machine. After the end of the material has been attached to a newly inserted roll, theattendant gives the roll a spinto take up the slack material that has been playing from Y the machine, and the roll is thenzconnected to power to automatically lcontinue the winding.

From time to ltime as the projections upon a sleeve become worn and lose their gripping power, the sleeve maybe stripped from the cylinder in the manner which'has already been described and a new sleeve may be introduced upon the cylinder in its place. In this way it is not necessary Vto withdraw a whole roll from service for renewing the points upon its circumference.

In Figs. 5 and 6 is shown another form of stock roll differing in minor details from the stock roll which has just been described. In the form of roll shown in these figures, 1a represents themerte al cylinder and 2a the sleeve corresponding to the cylinder and sleeve of Figs. 1 to 3. Instead of lproviding the cylinder with an axial tube of square cross-section, as in the first-described formV of roll, in this roll the axial tube 3a is of enlarged circular cross-section'and abuts` at its ends against the end plates `4a which latter are provided 'with square openings 4b corresponding to theshape of the mandrel upon which the roll is adapted to be supported. The intermediate por- 'Ytions ofthe tube 3a are supported in spaced plates ing the tube in concentrically 'spaced relation withA reference tothe cylinder, said cylinder having a longitudinal slot upon its circumference, a sleeve encircling" the cylinderand provided with a roughened area for a substantial portion ofits lengtlnsaid sleeve being split throughout its lengthalong a. line parallel to its axis and pro-` vided with reversely-bent portions adjacent its line of split extending'through the slot Vvin the cylinder andfengaging therinterior of the'cylin` der, and vsaidfplates v'having clearance notches uponA their peripheries adjacent the slot so as to permit the Vlongitudinal 1 introduction upon and removal of .the sleeve from the cylinder. e

Y2. A stock roll-constructed and designed for the windingVV of relatively wide lsheets of flexible material, comprising acylinder provided with a' recess extending longitudinallyA thereof, and a cylindrical sleeve encircling the cylinder and provided upon its circumference with a. multitude of small projecting pointsV deflning a roughened area extending a substantial portion of the length of the sleeve, said sleeve being provided with a longitudinal slot, having inturned edges adjacent the slot together forming with an inwardly pro# jecting key adapted to fit within the recess, said Y cylinder having at least one oi.V its ends of Ya diameter not exceedingtheinterior diameter of :the sleeveso as to permitthe introduction upon and removal ,of the sleeve from theicylinder in a lengthwise manner.V Y

Y 35A stock roll constructed and designed for thewinding of relatively wide sheets of flexible material, "comprising a hollow metal cylinder providedwitha recess extending longitudinally cylinder and provided upon-'its circumference with a multitude of smallVK projecting points deiining a roughened area extending a substantial portion of the length'of the Sleeve, saidfsleeveV thereof, and al cylindricalsleeve encircling the Y being provided upon its inner circumference with an inwardly projecting key'adapted to t within therecess, said cylinder having bothof'its'ends of a diameter not exceeding the interior diameter of the sleeve so as to permitthe introduction upon and removal of the sleeve from the cylinder in a lengthwise manner.

4. A stock roll constructed and designed for the winding of relatively wide sheets of exible material, comprising a hollow metal cylinder provided With a recess extending longitudinally thereof, and a cylindrical sleeve of sheet material encircling the cylinder4 and provided upon its circumference with a multitude of small projecting points dening a roughened area extending a substantially portion of the length of the sleeve, said sleeve being split lengthwise and provided upon its inner circumference with reversely bent portions adjacent the split adapted to hook' over the Walls of the recess, said cylinder having at least one of its ends of a diameter not exceeding the interior diameter of the sleeve so as to permit the introduction upon and removal of the sleeve from the cylinder in a lengthwise manner.

IRA H. J. ELLSWORTH.

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