US903643A - Cop or yarn-package. - Google Patents

Description

s. W. WARDWELLJ GOP OR YARN PACKAGE.

- APPLICATION FILED JUNE 23. 1906. 903,643. Patented Nov. 10, 1908.

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A TTOR/Yf Y5 -S.'W. WARDWELL. cor. 0R YARN'PAOKAGE. APPLICATION FILED JUNE 23. 1906.

Patented Nov. 10, 1908.

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S. W. WARDWELL. GOP 0R YABN. PACKAGE. APPLIOATIONLIILED mm 2a. 1906.

Patented Nov. 10,1908. 3 SHEETS-SHEET 8.

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or traverse, see Figs. 2 and 3.

SIMON W. WARDWELL, OF PROVIDENCE, RHODE ISLAND.

GOP OR YARN-PACKAGE Specification of Letters Patent.

Patented nom'io, 1908.

Application filed June 23, 1906. Serial No. 323,137.

To all whom it may concern:

Be it known that I, SIMON W. IVARDWELL, a citizen of the United States, residing in Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Oops or Yarn-Packages, of which the following is a specification.

My invention is a cop for use in loom shuttles and for other purposes where a maximum quantity of yarn within a given space is essential, and where said yarn must be delivered over one end of a non-rotatable package, rather than by unrolling from a rotatable supply.

The purpose of my invention is to build a taper nosed cop without having recourse to a formed plug or core on which to start the cop, and to utilize all available yarn space by building the cop with a substantially fiat base instead of a tapered one like mule cops and similar yarn packages, and further to produce a cop that can be continuously and completely unwound without having a residue of yarn unused.

The accompanying drawings illustrating my invention show, respectively: Figure 1, a side view of the cop showing its general form; Fig. 2, a longitudinal section; Fig. 3, the first layer in the cop; Fig. i, the second layer in the cop; Fig. 5, the third layer in the cop; Fig. 6, a side view of a modification of the cop showing another method of laying the coils; Fig. 7 the first layer of this method of winding; Fig. 8, a longitudinal section of the cop; Fig. 9, a longitudinal section of another modification showing a different method of disposing the first layers.

The essential feature of the invention is the formation of a conical or tapered yarn mass having a substantially fiat base, upon the surface of which the subsequent layers are started in the same plane, advancing gradually in the direction of the axis of the winding. To efiect this, the winding is preferably started with a layer of short length hen this has attained a certain thickness, the length of traverse is increased so the yarn mass is given a stepped form, as shown in Fig. 4:. When the second layer has reached its predetermined thickness, the traverse is again lengthened, producing the result shown in Fig. 5. The traverse, besides being lengthened with each layer, also has its position relative to the winding spindle changed slightly so that the winding of each layer subsequent to the first layer is started at a point slightly away from the starting end of the layer next preceding. The result of this is to give the end or base of the cop a slight batter or convexity. It will be evi dent, however, that the end of the cop might be built up perfectly straight, but it has been found preferable to give it this slight batter to make the cop more stable, the coils being less liable to fall over the base and prevent unwinding, which would cause waste. \Vinding is continued in the fashion described until the full length of traverse is attained, which occurs when the base of the cop reaches its predetermined diameter. A conical or tapered yarn mass is now formed, the innermost layers having a stepped formation, but, as layer upon layer has been added, the steps, where they overlap, have been gradually filled in and become less distinct, resulting in an outer surface with only a slight wavy character, as shown in sectional View, Fig. 2. After the conical yarn mass has been completed, the length of traverse is maintained uniform, but its relation to the spindle, longitudinally of its axis, is changed, either continuously or intermittently, so that the cop is caused to increase in size by longitudinal extension rather than by diametrical growth. In other words, the traverse advances gradually along the spindle so that, while a uniform diameter of the cop is maintained, its length is increased constantly by the addition of the overlapping frusto-conical layers.

In Fig. 9 I illustrate my mode of building up the base portion of the cop in connection with a reverse disposition of the layers, that is, the longest layer is disposed first on the core and the successive layers are shorter instead of longer, as in Fig. 2, but with a like result, that is, a substantially flat base and a conical shaped face. The minimum length of traverse is reached when the base of the cop has attained its predetermined diameter, and at this point the traverse is lengthened to its full extent and advanced slightly, done on the surface of the cone and continued as before described.

In Fig. 1, the cop is shown as produced by depositing the yarn by what is new technically known as the universal system of winding in which each layer consists of two thicknesses of crossed helices. To effect this the winding now being.

style of winding throughout the entire cop, it is necessary that, whatever the length of traverse, the number of spindle rotations per traverse must be such as to'insure'the proper lay of the material wound to deposit each helix of a given direction close beside the next preceding tion. This can obviously be accomplished in, various ways. For example, the number of Winds might,other conditions admitting, be four in all layers, in wliichcasethe'wind ing spindle would niake'fo'ur rotations per each traverse of the guide, plusthe slight fractional rotation for gain. In this case, the rate of traverse might be constant, and the rate per minute" of spindle rotation diminished with each change in length of traverse, or therate per i rotation might be constant and the rate of traverse in lineal units per minute be increased with each change" in length of tra'v erse. Oi", the number of winds in each layer might be varied without reference to other layers, and in a proportion in no'way dependent on or related to the number of winds in any one layer. But I prefer to wind the'imp'r'ov'ed copaccording to a natural sequence and progression, maintaining the rate per minute of spindle speed uniform, and so varying the length of traverse asto securea definite increase in number of winds for each length of traverse. Fig. 3 shows the first layer of one wind. Fig. 4 showsthe second layer twice as long, of two winds. Fig. 5, the third layer of three winds. That is, of course, the simplest and most eflicient mode of operation, permitting a constant rotative speed at the highest possible rate, and, therefore, the highest rate of production. y

In the cop illustrated in Figs. 1 and 2, there being eight layers in the core, then the last layer will be wound with eight winds, and this character of winding continues throughout the remainder of the cop, showing on the nose when the cop' is completed. V I

I The advantages of my invention are not confined to a cop wound with the Universal or close wind traverse, but this same manner of cop building is advantageous with what is known as open wind, as shown in F 6, or spool wind, or again with indis} criminate and haphazard wind, where the yarn is deposited by no systematic method; because it provides a yarn core or base which is part of the cop and unwindable with it, and therefore increasing its yarn capacity.

n important feature of the improved cop is the systematiclaying ofthe concentric cylindrical layers which are de'positedupon the core in building up the solid base with a I ering or conical forward end. It will be evident that these layers must be systematic helix of the same direcn inute' of spindle increased as successive layers were deposited upon it, with the result that instead of a regularly formed base, the base would be of such a character as would not properly support the succeeding layers constituting the cylindrical body portion. A distinguishing feature also ofthe cop is the regular and systematic laying of' the yarn in each" of the successive conical layers" constituting the body portion, which ares'o formed and laid t'hat the" yarn in onenyer is in advance of every portion of the yarn in the preced ing' layer, so' that upon the delivery of the yarn in unwinding it is impossible for the" yarn, as it passes from the cop, to be retarded by engagement with any portion of the underlying nia'ss'. I do not here however claim this arrangement of the successive conical layers, as the same is set forth in a companion application Serial No. 284,752.

It will also be understood that the ad'van tages of my invention are not confined to a cop of the dimensions shown, but the same method of buildingthe conical core of yarn might be applied to a cophaving a diameter equal to or approximating its axial length, and other modifications in size might be made, Therefore, without limiting myself to the recise form of package'o'r exact dis-' position of its substance,

I claim: p 1. A cop having a cylindrical body and a tapering nose, and with a base consisting of a succession of cylindrical concentric systematically laid layers, each outer layer longer than the preceding layer and stepped forward of theinner layer at the rear.

2. A cop having a cylindrical body and a tapering nose, and with a base consisting of a succession of cylindrical concentric systematically laid layers, each outer layer longer than the preceding layer and stepped forward of the inner layer at the rear, the body portion consisting of successive layers of substantially conical form, all portions of the yarn in each conical layer being forward of all corresponding portions of the yarn in the preceding layer. v y o V p 3; A cop having a cylindrical body and a tapering nose, and with a base consisting of a succession of cylindrical concentric sy s tematically laid layers, each outer layer longer than the preceding layer and stepped forward of the inner layer at the rear, the body portion consisting of successive layers of substantially conical form, the yarn in each layer disposed in open crossed helices and each layer being forward of the pre'ceding layer. 4 p

4. A (3013 having a "ylindrical body and a tapering nose with a base consisting of a succession ofv cylindrical, concentric system'aitically laid layers, each outer layer of different length from the preceding layer successive windings of yarn forward of such 10 and stepped forward of the inner layer at end. the rear. In testimony whereof I have signed my 5. A cop having a base consistingof a sucname to this specification in the presence cession of cylindrical, concentric systematof two subscribing Witnesses.

ically laid layers, each extending further SIMON WARD\VELL. forward than the next adjacent layer, the Witnesses: whole presenting a substantially conical end, CHAS. A. EDDY,

and a cylindrical body portion consisting of ARTHUR I. HARVEY.

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