US2774125A

US2774125A - Method of supporting threads or groups

Info

Publication number: US2774125A
Authority: US
Publication date: 1956-12-18
Anticipated expiration: 1973-12-18

Description

1956 s. s. c. FLEISCHER 2,774,125

METHOD OF SUPPORTING THREADS OR GROUPS OF THREADS IN A THREAD LAYER WHEN THE THREADS OR GROUPS OF THREADS ARE TO BE SEPARATED SINGLY FROM THE SAID LAYER Filed June 4, 1954 United States Patent METHOD OF SUPPORTING THREADS OR GROUPS OF THREADS IN A THREAD LAYER WHEN THE THREADS OR GROUPS OF THREADS ARE TO BE SEPARATED SlNGLY FROM THE SAID LAYER Svend Sigurd Christie Fleischer, Charlottenlund, Denmark Application June 4, 1954, Serial No. 434,572

3 Claims. (Cl. 2822) This invention relates to an improved method of supporting threads or groups of threads in a thread layer when the threads or groups of threads are to be separated singly from the said layer.

When this separation of threads or groups of threads is to take place the thread layer is held taut between two grippers which grip the threads only so firmly that the free ends of the threads may fairly easily be pulled out of engagement with the grippers.

It is already known how to insure the proper sequence of the threads or groups of threads in a thread layer to be separated by employing a row of connected thread loops each of which engages a thread or a group of threads. Such a row of loops possesses so much elasticity that by stretching it there is obtained an increased spacing of the engaged threads or thread groups, and this increased spacing of the threads is important for the separation singly, especially if this separation is to be performed manually.

it has, however, been noted that an uneven thread, or a thread with a knot, is not easily withdrawn from the loop without incurring disturbance in the arrangement of other threads, because such an uneven or knotted thread is liable to catch on to the loop row and thus loosen the neighbouring loops so that the threads are diflicult to separate.

The main object of the invention is to provide a method of supporting the threads of a thread layer which are held apart by means of the loops of a row of interconnected loops during the separation singly of the threads of the thread layer.

A further object of the invention is to provide a method of supporting the threads of a thread layer which are held apart by means of the loops of a row of loops during the separation singly of the threads of the thread layer, by arranging a supporting thread parallel to the row of loops to support the threads of the thread layer as well as the loops.

A still further object of the invention is to provide a method of supporting the threads of a thread layer which are held apart by means of the loops of a row of loops during the separation singly of the threads of the thread layer, by arranging a support thread in such a manner in relation to the loops and the threads of the thread layer that the supporting thread supports the loops as well as the threads of the thread layer but is disengaged from the row of loops upon withdrawal of the threads of the thread layer.

Yet an object of the invention is to provide in proximity of the row of loops and parallel thereto a supporting thread to support the threads from a thread layer, which threads traverse the said supporting threads alternately on the one and the other side thereof.

These and other objects of the invention will be apparent from the following explanation of the method described in conjunction with the accompanying drawing illustrating the method.

In the drawing:

Fig. 1 illustrates a connected row of loops used for the separation of threads from a layer;

Fig. 2 shows a similar row of loops associated with threads of a thread layer;

Fig. 3 shows a row of loops engaging a greater number of threads from a thread layer and also showing a supporting thread;

Fig. 4 is similar to Fig. 3 but shows the supporting thread positioned outside of the loops of the row of loops.

Referring to the drawing, 1 indicates the thread forming the row of loops. In the row of loops shown in Fig. 2 three loops each engage a thread 2 from a thread layer. When supported by such a supporting thread the row of loops may be subjected to considerable stretching upon extraction of a thread without incurring a loosening of the neighbouring loops and threads traversing these loops. In Fig. 3 a similar row of loops engage a greater number of threads 2, and between these threads 2 and the row of loops a supporting thread 3 is arranged in such a manner that threads 2 are disposed at the one side of the supporting thread while the loops lie on the opposite side thereof. In Fig. 3 some of the loops of the row of loops have been stretched in such a manner that the space between the various threads 2 is considerably increased. This arrangement of the supporting thread provides a good support of the threads of the thread layer as well as the loops. The loops may have any other suitable form than that shown. Each thread 2 may for instance be engaged by more than one loop.

Instead of positioning the supporting thread 3 between the thread 1 of the row of loops and the threads 2 from the thread layer it may be positioned in close proximity outside the row of loops and parallel thereto, as shown in Fig. 4; and every other thread 2 traverses one side of the supporting thread 3 while the other threads 2 traverse the opposite side thereof. This arrangement is very simple, and in some instances the supporting thread will provide sufficient support for the threads or" the thread layer as well as the loops.

I declare that what I claim is:

l. A method of supporting the threads of a thread layer which are held apart by means of thread loops during the separation of the threads from the thread layer, comprising the provision transversely of the thread layer of a supporting thread extending parallel to the row of loops and arranged to support the threads of the thread layer as well as the thread loops.

2. A method of supporting the threads of a thread layer which are held apart by means of the loops of a row of loops during the separation of the threads from the thread layer comprising the provision transversely of the thread layer of a supporting thread extending along the row of thread loops in such a manner that the loop thread is positioned upon the one side of the said supporting thread, and the threads of the thread layer are positioned on the opposite side thereof so that the supporting thread supports the row of loops as well as the threads from the thread layer, but is disengaged from the said loops upon withdrawal of the threads of the thread layer.

3. A method of supporting the threads of a thread layer which are held apart by means of the loops of a row of loops during the separation of the threads from the thread layer, comprising the provision transversely of the thread layer of a supporting thread extending parallel to the row of loops in proximity thereof, and positioned in such a manner that the threads of the thread layer alternately traverse the supporting thread at opposite sides thereof.

References Cited in the file of this patent UNITED STATES PATENTS $603,852 Fleischer July 22, 1952 FOREIGN PATENTS 640,449 Great Britain July 19, 1950