US1702140A

US1702140A - Apparatus for sizing textile fibers or threads

Info

Publication number: US1702140A
Application number: US99431A
Authority: US
Inventors: Topham Charles Fred
Original assignee: Courtaulds PLC
Current assignee: Akzo Nobel UK PLC
Priority date: 1925-06-23
Filing date: 1926-04-02
Publication date: 1929-02-12
Anticipated expiration: 1946-02-12
Also published as: FR613807A; GB254866A; DE460356C

Description

Feb. 12, 1929. 1,702,140

' C. F. 'TOPHAM APPARATUS FOR SIZING TEXTILE FIBERS QBIHREADS FiledApril 1926 mien/TOR (hm/n55 F. To /1am JKMM Patented Feb. 12, 1929.

UNITED STATF S PATENT OFFICE.

CHARLES IBED TOPHAK, OI COVENTRY, ENGLAND, ASBIGNOB TO OOUBTAULDS LIMITED, 01 LONDON, ENGLAND.

APPARATUS FOR SIZING TEXTILE FIBERS 0B THREADS.

Application am April 8, 1926, Serial No. 89,481, and in Great Britain June 28, 1925.

This invention relates to the sizing of textile material such as threads or fibers, and in particular to'machines for the said purpose, and is especially adapted for use in the sizing of artificial silk warps. In sizing such warps the artificial silk threads are generally drawn off one horizontal roller and pass over a second horizontal roller, the lower part of which dips into a bath of the sizing solution. The threads having thus taken up a certain quantity of the sizing solution, pass over a heated plate in order to dry them, and are then wound onto a third horizontal roller, generally termed a warp beam. Such warp rollers or warp beams often contain a very large number of threads, usually many hundreds and often thousands of such threads being wound parallel on one such roller or beam.

When passing a large number of threads over the second roller, which is dipping into the sizing solution, hereinafter referred to as the sizing roller, it sometimes happens that, some of the threads are either not at all or onl insuflicientl covered or im regnated with the sizing sol ution. Attempts ave been made to avoid this by using another roller at the top of the sizing roller, for the purpose of pressing the threads into the sizing solu tion with which the sizing roller is coated and also, to a certain extent, spreading out the filaments of which each thread is comosed, thus allowing the sizin solution to impregnate the threads. Suc top roller,

' however, has not enerally proved successful when artificial sil is being sized, since even if the top roller be coated with a layer of rubber it is found that the pressure is too great or the delicate artificial silk threads, and the threads are broken or otherwise damaged.

I have now discovered that the sizing of artificial silk threads or fibers (hereinafter referred to as threads) can be carried out very successfully if atop roller of special construction be employed to press the threads onto the sizing roller. cording to my invention consists of a central rod of 'hard material, such for example as iron, surrounded by a cylinder of a resilient material, such for exam le as rubber, a space being left between the ard central rod and the outer resilient cylinder. Into this space I insert a larger or smaller quantity of liquid, such for example as water. This compound roller, when used as the top roller on the The top roller, are-- top of the sizing roller, is sufficient to press the threads down into the sizing solution, particularly as the ressure between the two rollers causes a sma 1 pool of sizin solution to collect at their point of contact, tlius assist- 1n in the impregnation of the threads. The roIler itself, however, owin to its special construction is so resilient that any knots on the threads pass easily between the rollers, without being dragged or broken.

It is generally preferred to give both the sizing roller and the top roller a positive drive, so that the surfaces of the two rollers travel at the same peripheral s eed, although if desired the top roller nee not be positively rotated.

I will describe the invention with reference to the accompanying drawings which illustrate by way of example'how the invention may be carried out in 'ractice, but the invention is not limited to t e apparatus described and shewn.

Figure 1 represents diagrammatically apparatus in section according to this invention shewing the course of travel of the thread, while Figure 2 is a longitudinal section of a compound top roller according to this invention, and ig. 3 'is a longitudinal section of another roller accordin to this invention.

Referring to Figure 1, is the first roller or warp beam from which the threads X are being unwound, passing over the sizing roller B w ich dips into the trough of sizing solution C. D is the top roller according to this invention, and is shewn as being filled about one-third with water.

After passin between the sizing roller and the top roller t e threads travel over a heated box E where they are dried and then througha reed F, being finally wound on a third roller or warp beam G.

In Figure 2, which illustrates a compound top roller according to this invention, H is the central rod, on each end of which is a circular flange J. K is a cylinder of resilient material such as a rubber tube fastened to one of the flanges J at each end and leavin a space L between the peripheral tubing an the central rod H. M is a screw stopper on the removal of which a larger or smaller amount of water or other suitable li uid can be poured into the space L. The en of the central rod H is rovided with a gear wheel N by means of w ich it is driven.

In Figure 2 the central rod is shewn as being continuous from end to end of the roller, but if'desired the middle portion of this rod may be omitted rovided means are employed for positively riving each end of the roller at the same speed.

As a general rule the top roller is preferably longer than the total width occupied by the threads on the sizing roller, so that the rubber which is immediately under its end supports or flanges does not come into contact with the threads which are bein sized. The remaining portions of the rollerJby reason of the resiliency of the material and the lack of support from the interior, are subject to slight deformation by the liquid within the roller. This deformatlon, comin alwa s at the bottom, causes the contact with the swing roller to extend over an appreciable area.

What I claim is 1. In apparatus for sizing textile threads, a sizing roller, associated means for supplying sizing thereto, means for passing over t e sizing roller a group of threads of delicate structure such as artificial silk, in combination with a roller for pressing the threads upon the sizing roller, said press roller comprising a hollow cylinder of resilient material and a weighting liquid contained within the roller.

2 In apparatus for sizing textile threads, a siz ng roller, associated means for suppl lng sizing thereto, means for passing over t e sizing roller 21 group of threads of delicate structure such as artificial silk, in combination with a roller for pressing the threads upon the sizing roller, said press roller comprising a hollow cylinder of resilient material and a Weighting liquid of less volume than the interior of the hollow cylinder contained within the roller.

In testimony whereof I have signed my name to this specification.

CHARLES FRED TOPHAM.