US903642A

US903642A - Yarn-package.

Info

Publication number: US903642A
Application number: US28475205A
Authority: US
Inventors: Simon W Wardwell
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-10-27
Filing date: 1905-10-27
Publication date: 1908-11-10
Anticipated expiration: 1925-11-10

Description

Patented Nov. 10,1908.

INVENTOR $1M... MM

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S. W. WARDWELL.

YARN PACKAGE.

APPLICATION FILED OGT. 27, 1905.

WITNESSES SIMON W. WARDWELL, OF PROVIDENCE, RHODE ISLAND.

YARN-PACKAGE Specification of Letters Patent.

Patented Nov. 1o, 1908.

Application filed October 27, 1905. Serial No. 284,752.

To all whom it may concern:

Be it known that I, SIMON WV. WARDWELL, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Yarn-Pack ages, of which the following is a specification.

My invention is an improvement in yarn supply packages for shuttles, particularly for cloth loom shuttles. Its purpose is to make more available for weaving operations the advantage already imparted by the Universal system, of winding to other textile and analogous operations; viz., increased yarn capacity for the package, and uniform yarn delivery from the package.

The accompanying drawing, forming a part of this specification, clearly shows the embodiment of my improvement, in which:

Figure l is a view of the completed bobbin; Fig. 2 is a view of the method of winding, showing how the coils are laid in the first layer; Fig. 3 is a diagrammatic view showing how succeeding layers are deposited.

This improvement is a yarn package or filling cop consisting of an advancing, conically wrapped layer of Universal winding, which species of winding is well understood by those versed in the art, but will be described. Universal winding consists in laying the yarn in openly coiled crossed helices, each helix having a nominal number of turns per movement of the yarn depositing guide in one direction of its reciprocation. Thus, in the drawing, the yarn is shown as laid in five turns, or winds, as they are technically known, a package being designated a two-windfive-wind etc., package according as the yarn makes two or five, etc, turns per traverse of the yarn depositing guide and all the coils or winds turning in one direction are parallel to each other lying side by side.

The term nominal turns is employed because the yarn actually makes a small fraction of a turn more or less than the nominal number, to secure the gain that is, the peripheral change of turning point of the yarn at the end of each traverse, which causes each helix to be laid peripherally ahead of or behind the next preceding helix, to produce the close V-wind that characterizes the Universal system.

The method of winding will here be described as in a conical layer, that being the predominent wind throughout the cop shown.

In detail, the yarn depositing guide commences a traverse on a cone element indicated by (zb, see Fig. 3. The yarn is deposited in one direction by the guide in five turns (which return it peripherally to the element aZ)), plus the small fraction of a turn c-cZ which carries it beyond the said cone element, to the turning point 0. The reverse movement of the guide (which is indicated diagrammatically by the arrow 7") turns the yarn at c and deposits it in a reverse helix, which in ten turns from the point of starting (4 again crosses the cone element a-Z), and at the end of a full reciprocation of the guide, reaches its new starting point 9 which is peripherally away from the original starting point a, to lay the next helix beside the first. hen the yarn has turned. at e, and is guided back toward a in its return helix, it crosses over and binds down the first helix at each point of crossing, It 2' etc. This, then, is a dominant charac teristic of the Universal system, that each helix extends a sufficient distance in one direction so that it binds and holds the next preceding reverse helix, and is bound and held by the reverse helix next succeeding. This is particularized because the extreme taper of the filling bobbins increases the ten l ency of each helix to slip, and renders a means for binding it especially necdful.

The winding is started on a spindle or core m, having preferably a slight taper to correspond with the usual taper of shuttle spindles. As the yarn is deposited, the longitudinal relation of the extremes of travel of the guide and spindle changes, so that the yarn is not laid in superimposed layers, as in a cylindrical cop, but in advancing, helical layers. Each layer has two edges 11. and 0. As the winding progresses, the edge 0 is always on the spindle m, but the edge it lies, after the first covering of the spindle, upon yarn previously wound. Therefore, the edge a consisting of a succession of bends follows a conical form beginning with the apex and ending with the base, which constitutes part of the cylindrical portion of the cop body. The edge 0 follows the substantially cylindrical surface of the spindle m, which, although possessing a slight taper, is so nearly cylindrical that it will be considered so. U ntil the edge it reaches a point '1" directly over the starting point of the edge 0, it is, with the exception of the first covering of the spindle, partly Wound of cylindrical form and partly of conical form. After the edge 4?. has reached the point 1" directly over the starting point 0 of the edge, it is wound of conical form, the direction of reciprocation or path of the guide thereafter being of constant inclination to the spindle m.

The distinguishing features of the improved cop is the fact that the yarn in each of the so-called conical layers (a succession of which constitutes the cylindrical body portion of the cop) is forward of every portion of the yarn in the preceding layer; that is, no part of one layer is back of any part of the yarn in the preceding layer, so as, in delivering the yarn, to catch on or retain the latter, as occurs in all cops of ordinary winding either when exposed or compressed in the shuttle. Where the base is built up as described, the ultimate result is a cop having the base portion composed of a mass of yarn built up of reversed helical coils, successively and progressively laid until the mass is of the desired diameter of the cop, with opposed tapering ends, and the cylindrical body portion built up by continuing the laying of the reverse coils progressively in successive layers, every portion of the yarn in each layer in advance of that in the preceding layer toward the nose of the cop. Obviously, such a cop, by virtue of its systematic windingeach helix being closely beside adjacent helices throughout the cop and the delivery of such systematic winding from its conical nose, delivers its substance with exceptional freedom and uniformity.

As in the bobbin of my pending application, Serial No. 277045, filed Sept. 5, 1905, the succeeding turning points vary both peripherally and longitudinally, so do they in my present improved cop, but whereas the winding of the improved bobbin aforesaid was started on a formed core of the desired taper, in my present improved cop the formed core is dispensed With, and the winding is started on the spindle or on an inexpensive paper tubewhich may or may not extend through the length of the copand the yarn is so wound as to form its mass to the desired taper.

I therefore claim as my invention:

1. A cop having a cylindrical body and tapering nose, said body consisting of successive layers of substantially conical form, all portions of the yarn in each layer being forward of every corresponding portion of the yarn in the preceding layer.

2. A cop having a cylindrical body and tapering nose, said body consisting of successive layers'of substantially conical form, the yarn in each layer in open crossed helices, and all the yarn in each layer forward of every corresponding portion of the yarn in the preceding layer.

3. A cop having a base composed of a mass of yarn built up of reversed helical coils successively and progressively laid to form opposing tapering ends and with a cylindrical body, said body consisting of successive layers of substantially conical form, all portions of the yarn in each layer forward of every corresponding portion of the yarn in the preceding layer.

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

SIMON. WV. VARDVVELL.

Witnesses CHAS. A. EDDY, ARTHUR I. HARVEY.