US1408202A - Shuttle-thread package - Google Patents

Description

A. T. HUSER.

SHUTTLE THREAD PACKAGE.

APPLICATION FILED JUNE 5,1919.

1 ,408,202-. Patented Feb. 28, 1922.

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A TTORNEY UNITED STATES ADOLF T. HUSER, OF NORTH BERGEN, NEW JERSEY, ASSIGNOR TO- JOHN W. STEWARD, OF PATERSON, NEW JERSEY.

SHUTTLE-THREAD PACKAGE.

Application filed June 5,

To all wit-0771 it may concern Be it known that I, ADOLF T. Husnn, a citizen of the United States, residing at North Bergen, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Shuttle- Thread Packages, of which the following is a specification.

This invention relates to so-called traverse wound weft thread packages for loom shuttles, i. e., to loom shuttle packages in which the windings are formed by guiding the thread back and forth parallel with the axis of the core, or quill, through a range materially shorter than such core while the winding is proceeding, gradually shifting the guiding element or the core, one relatively to the other, longitudinally of said axis, so that conical overlapping layers of the windings result. The object of the invention is to provide a. package which will be longer and hence of materially greater capacity than those commonly used. To this end, using a longer core than usual and preferably tapering the same from the butt to the point so as to reduce the friction which would otherwise be greater on the windings that are near the butt than those that are near the point due to their long wrapping around the core in being delivered, I provide a series of abutments formed circumferentially on the core and so that in any profile of the core they will present undulations so slight as closely to approach a straight line, thus preventing the inertia of the mass of windings from causing the same to slip toward the point of the core at the instant of sudden starting and stopping of the shuttle and yet, due to their but slight departure from a straight line, not offsetting what is gained by the taper. I further provide a plurality of these undulations to each thread layer length (hereinafter termed a traverse length) for the following reason:

In experimenting with cores formed tapered toward the point and with undulations I have found that unless there are a plurality of the undulations to a traverse length, when the package is used in a shuttle there will form splits or breaks in the mass of windings, the same paralleling the taper of the thread layers and ensuing one after another from the point toward the butt as Specification of Letters Patent. Patented 1 el 28, 1922;

1919. Serial No. 302,007.

the thread is paid out and invariably ap proximating in distance apart the traverse length. This of course means a defective or unreliable package, so that, practically, no gain is accomplished by being able to make the package longer without increased friction on the thread as it is delivered from the extended core through tapering the core and providing the undulations to keep the wound mass as a whole from slipping forward in consequence of the taper. On the other hand where the undulatlons are provided so that there will be a plurality of them to a traverse length no splitting ,or breaking of the wound mass whatever occurs, and in consequence a package results which may be made 33*}% greater in length, and hence in capacity, than the ordinary shuttle package, in which the mass as a whole will be held against slipping on the core, and the core of which will interfere no more with the thread in delivering than the core of the ordinary package.

I am unable to account for the fact that the breaks or splits referred to will occur, invariably approximating in distance apart the length ofthe traverse, where the ratio between the undulations and the traverse length is one (or less than one) to one, unless it be due to the constricting action of the conical layers and the forward slope of the undulation next behind the undulation last uncovered by the thread favoring slipping forward, under the shocks of suddenly stopping and starting the shuttle, of afrag ment at the end of the mass corresponding in length to a traverse length.

The drawing shows the improved package with the core memherin side elevation and the windings in section diagrammatically illustrated by converging lines.

The quill a is shaped quite like an ordinary quill, with its butt portion prefer ably enlarged and conical. However, as the stem of the quill is appreciably longer than that of the ordinary quill, it is tapered, substantially as shown, from the butt toward the point or free end, so as to eliminate the undue friction to which the thread would PATENT OFFICE.

otherwise be subjected when in delivering abutments Z) in the form of undulations s0 slight as nearly to approach a straight line in any profile of the core, the purpose of which is to prevent the mass of windings from slipping toward the point of the quill as an incident to its being tapered; in the preferred form these undulations are so slight as to be hardly perceptible to the eye, they appearing somewhat exaggerated in the drawing. I

The windings c are deposited on the quill, as explained, by the so -called, traverse In'ethod, resulting in conical overlapping layers, as shown. The traverse length is indicated in Figure 1 as extending from d to d. It will be seen that there are a plu- A shuttle thread package including an elongated tapered core formed with a longitudinally extendlng series of circumferential undulations appearing in any profile of the core as nearly approaching a straight line, and thread traverse-wound on the core in overlapping conical layers, there being a plurality of such undulations lying within the limits of each thread layer.

In testimony whereofI aifix my signature.

ADOLF T. HUSER.

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