US1790979A

US1790979A - William

Info

Publication number: US1790979A
Authority: US
Priority date: 1928-02-13
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03
Also published as: FR669464A; BE358079A; DE574814C

Description

Patented Feb. 3; 1931 v PATENT OFFICE WILLIAM ronrrin DREAPER, on HAMrsrEAD HEATH, ONDON, ENGLAND srmnmsor AnrIrIciA sILK AND THE LIKE No Drawing. Application filed January 81, 1929, Serial No. 836,669, and in Great Britain- February 13,1928. I

In the manufacture of artificial silk or other textile products by what is known as centrifugal spinning or the collection of strands or yarns in a centrifugal box, and

more especially when this process of collection isutilized when dry spinning of artificial silk strands is contemplated, difficulty is experienced in getting the said strand of filaments down the funnel guided especially when, as is usual, the said strand is coming,

away from the, say the metier case at a rapid rate, and" where this must be immediately dealt with by starting up the collection of the strand in the said centrifugal box before the strand issuing from the metier case and passing over' the godet is hopelessly tangled up. I now find that this diificult can be overcome by proceeding in ,the ollowing 'manner. I first pass down the funnel guider which is to pass the strand into the centrifugal box in the known manner, what I now term a guider starter, which may consist of a short length of a sufficiently flexible yarn, or similar device, so that when this is in position and already down the funnel guider, so that at the one end it protrudes from the lower end of the said funnel guider sufliciently for the revolving centrifugal box to exert a downward pull on the upper end of the said guider starter as this protrudes from the funnel or upper end of the funnel guider -to a convenient length, say for instance I then utilize this guider starter to draw down the strand of filaments, for instance, as this is passing away from say the godet at a rapid rate or even before it is passed. over the same, and to this running end, I arrange that the upper end of the said guider starter is quickly joined, or attached, to the said strand of filaments, and that then this guider starter is released when it draws down with it the strand of filaments, and normal spinning operations are started by this means;

The actual attachment of the'upper end of the guider starter, when this is already passed down the funnel guider as indicated,

and is under the influence of the downward I pull indicated, may be made between the said guider "starter and the strand of, say,

'filamentsjwhi'ch it is desired to rapidly introduce. or pass down the funnel guider in' any convenient' manner, as the said strand of, say, filaments s so arranged that it passes suitably, in a convenient Way, over the said funnel guider or in its neighbourhood. For

" instance, the upper end of the guider starter may be twisted round the strand of. filaments to be drawn down the funnel guider just before the upper end of the guider starter is released; or the'end of-the strand of filaments may be quickly twisted round the yarn which is continually passing down the guider funnel as indicated when a doubled yarn is, say, required. If necessary the upper end of the guider starter may be treated with a suitable adhesive material to facilitatethe joining of this guider starter to the, say, strand of filaments.

Or. in special cases it may be,

desirable to knot or loop the ,two ends together by any means known in the textile industry. v y

Thus, the said guider starter acts as a pilot in the very dilficult'operation of passing the 1 thread into the revolving centrifugal box through the funnel guider, especially in cases where the strand of filaments is being deliv ered from the, say godet at a rapid speed and where the said strand of filaments is produced by dry spinning and is difficult, say, to wet in the time available for starting operations which'may be only the fraction of a minute in some cases. If desired, theoperation may also be facilitated where this is possible by a preliminary Wetting, or spraying process as this is directed to, or applied to,

the travelling strand of, say, filaments on its -vidual strands breaks accidentl-y, or alternatively, it may give'some visible or sound signal of such an occurrence. I

I claim: 1. In a process of twisting and collecting artificial silk and the like, a method for'starting up the collection of the strand of filaments through a guider, comprising the use of a short strand of flexible material which is threaded through the guider-and applied to the surface of the twisting and collecting device, the upper end of said flexible material being connected to the travelling strand of filaments which is pulled through the guider and collected on the surface of the twistingand collecting device.

2. In the centrifugal'box collection of artificial silk and the like, a method forstarting up the collection of the strand'of filaments through the funnel guider into. the centrifugal box comprising the use of a short strand of flexible material which is threaded through the funnel guider into the centrifugalbox and the upper end of said flexible material being connected to the travelling strandof filaments which is pulled into the centrifugal box.

3. In the centrifugal box collection of artificial silk and the like, a method for starting up the collection of the strand of fila ments through the funnel guider into the centrifugal box comprising the use of a short ing up the collection of the strand of filaments through the funnel guider into the centrifugal box comprising the use of a short strand of flexible material which is threaded through the funnel guider into'the centrifugal box by the aid' of a stream of solution passed down the'funnel guider, the upper end of said flexible material coated with an adhesive being connected to the travelling strand of filaments which is'pulled into the centrifugal box.

In witness whereof I affix my signature IVILLIAM PORTER DREAPER.

strand of flexible material which is threaded through the funnel guider into the centrifu-L gal box, the upper end of said flexible material coated with an adhesive being connected to the travelling strand of filaments which is pulled into the centrifugal'box.

4. In the centrifugal box collection of artificial silk and the like, a method for starting up the collection of the strand of filaments through the funnel guider into the centrifugal box comprising the use of a short strand of flexible material which is threaded through the funnel guider into the centrifugal box by the aid of a stream of solution passed down the funnel guider and the up per end of said flexible material being connected to the travelling strand of filaments which is pulled into the centrifugal box.

5. In the centrifugal box collection of artificial silk and the like, a method for start-