US2548976A

US2548976A - Winding of yarns

Info

Publication number: US2548976A
Application number: US723624A
Authority: US
Inventors: Hibbert Harold Maximilian; Holroyd John; Baines Richard Henry
Original assignee: Celanese Corp
Current assignee: Celanese Corp
Priority date: 1946-01-25
Filing date: 1947-01-22
Publication date: 1951-04-17
Anticipated expiration: 1968-04-17

Description

April 17, 1951 H'BBERT 2,548,976

WINDING OF YARNS Filed Jan. 22, 1947 Patented Apr. 17, 1951 UNITED} STATES PATENT o F'F'ICE This invention relates to the" windi'ngof yarns and 'particularly'to the beaming of yarns on warp beams with orwithout' end flanges forsupporting the ends of the yarn mass Wound onthe beam.

In the beaming of yarnsit is sometimesthe practice to reinforce the end po'rtionsof the yarn mass by the use of beaming collars, or strips of paper that are reinforced by' the application along" one edge of a strip of thi ckermat'erial such as cardboard of a width less than the widthof the paper. The paper is-insertedbetween' adjacent layers of yarn at intervals throughout the winding of th'e'beam in such away thatthe cardboard strip extends beyond the end portion of the yarn masswhile theunreinforced part of the widthof the paper is'bound in by the'- adjacent layers of yarn as they are wound on the beam. The strips are inserted at'such intervals that the thickness of yarn wound on the beam between the insertion of adjacent strips is equal to the thickness of the cardboard strip so that the cardboard strips buildup intoa solid disc at-the end of the-yarn mass of a radiu equal to that of the yarn mass; Ithas been found; however, that notwithstanding the added bulk of the thin pa er that is included Within the yarnmass; theen'ds of the yarn mass are apt" to become sunken as compared with the main body-ofthe mass. Tliisis mainly due to the shuffle or slight traversing of thewarp sheet to and fro along the'le'ngth' of the beam duringwinding, which'is'doneto ensure the solidity and stability of the yarnma'ss' wo'und on the beam.

In accordance with the presentinvention; a form of beaming collar in which this disadvantage is overcome and which possesses other advantages comprising a strip of thick pliant material such as cardboard faced on both sideswith a thinner material such as paper; the thinner material on both sides projecting beyond one edge of the thicker material but to different distances; When a beaming collar of this construction is incur porated in the yarn mass during beaming'in such a way that the thick material lies justoutside the end of the yarn mass; the thinner material; which is included in the yarn mass, not only aug' ments the bulkines's of theyar'n at the end of the yarn mass toa greater'extent than'ifa' single layer were employed, but is also graduated in thickness by reason of the fact that one strip of thin material projectsbeyond the other. In this w'ay'the falling off of the density of yarn at the ends of the yarn mass is compensated for in a way that closely corresponds to the gradual way in which the density falls 0111- Claims. (Cl. 728 321 2; V Bywa of example; twoforms'o'f teamingccnar accordin tothe'p'r'eserit invention and the method of makingithem' will'n'owbe'describedin greater detail with" reference to theaccompanying' draw: mgs in which? I g Figure 1 is a c'ross's'ec'tion of" a beamingf collar having a relatively wide 'cardb'pard striptherein, Figurefiis' a; ViewsimiIaIrf'tGFigUre ref atelier having a narrower strip of'jcarb'oa'rd'therein'and provided witha s'p'ac'ed fold so'as' to form a lip, Figure 3isa diagrammatic sideelevatio'n show ing thdme'thod" of formingtn'e cbllar's" of" Figures 1 and 2, and 7 h Figure is'a diagrammatic section through a warp" beam reinforced at its" end with beaming c'olla'rs in' accordance with the invention.

Referrmg'to" Figure 1' the causes are termed in pairs; based on two strips 5' of cardboard, 1 in. in width,. completely enveloped in a single continuous Strip" or aper 6, 7 ins. Width; the

so that the edges of the papert form two flaps! extending in. inside the inner edges of "the strips. In the middle of the'strip of papers; at a, the paper-1s" severed 0r" a1r'floSt' severed coinpletely: through; so" that the tvvo ha1\r es' of the pairr f-co11arscan ti readilys'eparated from he an'otnerior use: The separate collars" thustwo" fiap's, one extending from each face of tire cardbtiard'strip therein;v to" distance of arid respectivel The wider ap rs-presseuuown at}; a't'the' inner" edge of the strip 5 so as" to liei'ri cpntatt' With the? narrower flab" T.

The" beaming" comers shown in Figure 2 are similar to those in' Figure 1, except that" the strips of cardboard I'll are only in; in width and the pap r II is only'5' ins'iin total width. The strips it are separated: by a: distance of 3 his. so as to leave a flap pr 1 /2- ins; ext'eiidii'i' "*beyond' one face o'f'thecollarandl beyond the other face of thecollar. The'widerflap is creased downwar'dsasat fl so as to lie in contact with the narrower flap" la 7 Roundthe nter edges ofthe'st'rip's ID the fold l4" formedin' the paperll is"s'1igh't1y spaced from the daldbifard so that it can be crushed or pres ed-outer" the plane oi the cardboard to form a lip, as indicated on. the" right ha'n'd side of" Figure -23 v The collarsflshown' in Figures 1 2 are formedih a roll; soth'at theya'regiven a permanent c'ur've'd' set, which' is of considerable-assistancewhen a plying them" to the reinforcement o'f'a- Ideami This is brought about during the production of the collars" in the manner in"- d'ic'a-te'd i'n- Figure 3E Thestrips of cardboard 5 4 the finished roll as wound on the roller 21).

the paper projecting from each side of th'e's'trips' is folded over the strips towards the middle. The double strips 5 and Bare then passed between forming rollers 24, 25, the upper roller 24 being a resilient roller, while the lower roller 25 is formed with a central enlarged portion 26 fitting into the space between the strips Sand creasing the middle portion of thepaper strip 6 round the inner edges of the cardboard strips 5 and into contact with the roller 24. A circumferential projection round the middle of the roller 25 cuts substantially through the paper so as to form a line along which the two halves can be readily separated. The product is then rolled up on a roll 21, on which it is allowed to remain ,until dry, so that the form given to it between the rollers 24, 25 and on the roller 21 is permafnently set. When dry, the roll may be cut through along a radial line to form a .set of double collars for use in winding a beam of appropriate size (i. e., one with external and internal diameters substantially equal to those of It is ,not, however, essential that the previously fixed curvature of the collar should exactly match the curvature it will adopt in the wound beam. Accordingly, it may be more convenient to wind the assembled strips into a coil of larger diameter than the beams for which itis to be used, and to cut the collars from the coil in appropriate lengths when required.

The beaming collars according to theinvention may be employed as the sole support for the ends of the yarn mass wound on the beam, the yarn mass being also reinforced by fullwidth beaming paper inserted at intervals between adjacent layers of yarn on the warp beam and extending across the full width of the warp. Indeed the invention contemplates the provision of a full-width beaming paper reinforced at both edges by strips of cardboard or like material, round the outer edges of which the edges of the paper are turned over so as to project inside the inner edges of the strip. The collars may also be employed, however, in conjunction with a beam flange and as separate collars without the use of the full-width beaming paper. In this case, by the provision of beaming collars having difierent widths of cardboard, the necessity for a fine adjustment of the position of the beam flange is obviated. Consequently, a beamwhose flanges have only a coarse adjustment or no adjustment at all may be used, and the expense of providing for a fine adjustment is avoided."

The manner in which the beaming collars described above with reference to Figure 2 may be employed in beaming is shown in Figure 4, in which the yarn mass 30 is wound on a beam 3| and compressed between flanges 32. Between the end of the yarn mass 30 and the flange 32 are dispersed the strips l0, inserted at intervals during winding so that the paper flaps, are incorporated in the end of the yarn mass 30, the double flap entering into the extreme end of the yarn mass as at 33 while the single flap extends further in as at 34. The collar is chosen as having a width of cardboard approximately suflicient to fill the space between the yarn mass 30 and the flange 32, the crushing of the lip l4 provides for some tolerance in this respect, and also prevents any stray turns of yarn lodged between adjacent beaming collars slipping between the collars and the flange 32.

Instead of using cardboard of 1 inch or A; inch in width other widths may be employed, for example a range consisting of 1 inch, 4-inch, inch and i -inch with a correspondingly narrower paper 'e'. g. 7 inches, 6 inches, 5 inches and 4 inches so'that, where a flanged beam is required a set of collars having strips of cardboard of the appropriate width can be selected.

Having described'our invention, what we desire'to secure by Letters Patent is:

, 1. A beaming collar comprising a strip of thick pliant sheet material faced on both sides with a thinner sheet material, the thinner material on both sides projecting beyond one edge o fithe" thicker material in the samedirecti'on but to different distances.

steaming collar comprising a strip of thick pliant sheet' material faced on both sides with a sin gle sheet of thinner material io'rming a ield-round one edge of" the thicker material and projecting beyond weather 'edgeof the thicker material "on botnsides thereof in the same direction but tcS diife rent distances.

3. beaming collafcomprising' a strip of thick pliant sheet material Lfaced on both sides with a single sheetpf thinner material forming a fold round one edge for thethinner "material, which'f old is slightly s paced'from saidedge so that it can be pressed out of the plane of'the thicker material to form a lip, said -thinner material on both sides of the thicker material projecting beyond the other edge thereof but to different distances.

4 Abeaming collar comprising a strip of thick pliant sheet material facedon both sides with a thinner sheet material, the thinner material on both sides projecting beyond one edge of the thicker material but to different distances, said collar having as a permanent set a curvature about an axis at right-angles to the length of said strip. 3 i A 7 5. A beaming collar comprising a strip of thick pliant sheet material faced on both sides with a thinner sheet material, the thinner material on both sides projecting beyond one edge of the thicker material but to different distances and the thinner material on one side being pressed round said edge into contact therewith and with the thinner material on the other side of the thicker material, said collar having as a permanent set a curvature about an axis at rightangles to the length of said strip.

6.;A beaming collar comprising a strip of thick pliant sheet material faced on both sides with a single sheet of thinner material forming a fold roundone edge of the thicker material, which fold is slightly spaced from said edge so that it can be pressed out of the plane of the thicker material to form a lip, said thinner material on both sides of the thicker material projecting beyond the other edge thereof but to different distances, and the thinner material on one side beingpressed round said edge into contact therewith and with the thinner material on the other side of the thicker material,. said collar having as a permanent set a' curvature about an axis at right-angles to the length of said strip.

7. Beaming collars in the form of a pair of collars of opposite hand, each comprising a strip of thick pliant sheet material faced on both sides with a thinner sheet material, the thinner material on both sides projecting beyond one edge of the thicker material in the same direction but to different distances, the collars of the pair being united to one another at the edges of the thinner material which project further from the strips of thicker material.

8. A pair of beaming collars of opposite hand comprising a pair of spaced parallel strips of thick pliant sheet material faced on both sides with a single sheet of thinner material which is folded round the outer edge of each strip, and whose edges extend inwards beyond the inner edge of each strip but fall short of the centre line between said strips, said thinner material being substantially severed along said centre line so that the pair of collars are readily separable from one another.

9. A pair of beaming collars of opposite hand comprising a pair of spaced parallel strips of thick pliant sheet material faced on both sides with a single sheet of thinner material which is formed, round the outer edge of each strip,

into a fold slightly spaced from said edge so that it can be pressed out of the plane of the thicker material to form a lip, and whose edges extend inwards beyond the inner edge of each strip but fall short of the centre line between said strips, said thinner material being substantially severed along said centre line so that the pair of collars are readily separable from one another.

10. A pair of beaming collars of opposite hand comprising a pair of spaced parallel strips of thick pliant sheet material faced on both sides with a single sheet of thinner material which is formed, round the outer edge of each strip, inte a fold slightly spaced from said edge so that it can be pressed out of the plane of the thicker material to form a lip, and whose edges extend inwards beyond the inner edge of each strip but fall short of the centre line between said strips, said thinner material being substantially severed along said centre line so that the pair of collars are readily separable from one another, the thinner material on one side of said strips being pressed round the inner edges of said strips into contact therewith and with the thinner material on the other side of said strips, said collars having as a permanent set a curvature about an axis at right-angles to the length of said strips.

HAROLD MAXIMILIAN HIBBER JOHN HOLROYD. RICHARD HENRY BAINES.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS