US1457977A - Producing artificial silk - Google Patents

Description

Fume 5, w23. IASIQ?? l. KlTsEE PRODUCING ARTIFICIAL SILK Filed Oct. 25. 1921 )I l Il /Mvm Patented 'dune 5 1923..

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ISIDOR KETSEE, OF PHILADELPHEA, PENNSYLVANA.

PRODUCING ARTIFICML SILK.

Application filed- October .23, 1921.. Serial Kto. 510,249..

. process.

ln application Serial No. 502,866 of Sept. 24, 1921, l havel illustrated anddescribed the means to generate the required gases at the point of using the same for the conver sion of the liber into required viscosity. lin Letters Patent No. 1,390,995 of Sept. 20, 1921, l have described a process with the aid of which the dissolving action of the fiber is greatly exhilarated. In Letters Patent No. 1,389,517 of Aug. 30, 1921, I have illustrated and described means to produce the thread out of the viscous mass in a greatly improved manner as is practiced today. The main object of this invention is to produce what I call a working unit with the aid of which the raw fiber may be converted into a finished thread, colored if deysired, automaticallywithout 'necessitating the removal of the fiber, .in the diii'erent stages of operation, from the device. ln other words to produce.: a silk thread to be used commercially without manual labor from the time that th raw ber is placed in its compartment,..till the nished thread isk takencolored if desired-from. the spoolr on which it is wound, thus saving a great deal of labor" and expense necessary with the processesy 'of today.

luth drawing which illustrates one form my invention may take, Fig, 1 is a vertical sectional view partly in elevation, illustrating diagrammatically the different parts of the unit to be employed in accordance with this my invention. Fig. 2 is a section ofthe converting chamber of the unit The unit consists here of the generating chamber A, the converting chamber B, the storage tank C and the coagulating and spinning compartment D.

The nerating chamber A comprises here the casing 2 containing the liquid 3 and comprising the hoppers 4 and 5 for the ammonium salt and calcium oxide respectively and `provided each with a measuring device 6 and valve 7 it also comprises the agitator 8 adapted to be revolved through means 9.

To the casing is attached the pipe 10 pro- 60 vided with the valve 11 and water gauge 12. llt is also provided with a pressure and safety gauge 14- and the manhole 16. The operation of this part of the unit is clearly described in the 'application above men- 65 tioned. p

The converting chamber B comprises here the casing 17 inclosing the agitators. These agitators comprise here the revolvable gears 20 fulcrumed each at 19 and provided each m with the wings 18. These agitators are revolved with the aid of the pinion 21 ulcrumed at 22. rlhe motive power may be mechanical or electrical. ln this casing, the required fiber and liquid is introduced through manhole 23. rlhe method of producing viscosity of the fiber is set forth in Letters Patent No. 1,390,995 above cited.

The coagulating and spinning compartment D comprises here the casing 38 pro- 80 vided here with the stationary receptacle 30 for the converted solution and the revolvable base 31 with its appended nipples or nozzles 32. The revolvable part 31 is operated through the gears 39, the shaft of which may be revolved with the aid of mechanical or electrical means. The fibers issuingfrom the nozzles 32 are indicated by 33 and the thread spun from these fibers by- 34. The compressing means for this thread are indicated by 35 and the spool on which the thread is wound is indicated by 36. 37 arethe means to revolve this spool in conjunction with the means to revolve the base 31. agent. The mode or method of operating this part ofthe device is clearly set forth in Letters Patent No. 1,389,517 aforesaid.

ln the practical working of the device I have found, that it is necessary to insert 00 vbetween the converting chamber and coagulating and spinning chamber a storage tank C so as to insure a continuous operation. This tank C is here indicated by 26. It is connected on the upper side through pipe 105 24 to be closed by 25 with the converting chamber B and on its lower side through pipe 27 provided with valve 28, with the interposition of a force pump 29 with the stationary receptacle 30 through N0 pipe 27.

The chamber A is connected to chamber The casing contains the coagulating B through lpipejl provided with safety and I pressure gauge 14 and valve 15'.

Generally speaking, the gases are gen-f yveyed `4into the stationary. receptacle 30.

The pump 29 should exert pressure enough, so as to force the semi-fluid out of the nozzles or nipples in the form of fine streams to be vcoagulated in the coagulating bath.

This coagulating agent may be colored with a suitable dye. This, in broad outlines embraces the continuous process of producing economically the desired thread out of the raw ber. 'v

In application above mentioned I have illustrated one means of producing the required friction between the fiber and the copper. In this application these means vary in detail from the one-above referred to., but the end-result will be similar in both cases, I have illustrated one converting chamberas to be connected to the generating chamber A, but itis obvious and does not need Afurther illustration', that a number of these converting chambers may be connected on one side with one generating chamber and on the other side with one storage tank, so also lis it obvious that a series of coagulating and spinning compartments may connect with one and the same storage tank. I have illustrated the base 31 and thescrew ofthe spool 36 as to be revolved together, but it is obvious that each of these devices .may have separate actuat ing means. In some cases, this separation may evenbe preferred, but I do not deem it necessary lto illustrate this modification.

Havingnow described my invention, what I claim as new and desire to secure by Letters Patents is:

1. In the production of artificial silk the method which consists in causin in one continuous operation automatical y to be produced a desired thread comprising .a

-series of filaments out of the raw fiber without necessitating the removal of the ber during the dierent stages' of operation from the source of supply and without al lowing the atmospheric air to contact with 4the products during the dierent stages of production.`

2. In the production of artificial silk the method which consists in causing to be produced the :gaseous-agent required for the conversion of the liber-and causing then the converted liber to vbe Aspun into a desired thread in one continuous operation with- .out re uiring manual manipulations during the di erent stages of operation and without allowing the atmospheric air'to contact with the products during the different stages of production..

3. The process of producing the converting agent as well as the conversion of liber and its formation into a thread through the operation of one working unit, continuously and automatically and without allowin the atmospheric air to contact with the products durinlg the different stages of production.

4. n the production of artificial silk the improvement which consists in converting with the aid of nascent ammonia gas in into a viscous mass, and coa lating and lspinning said coagulated mass lnto required 6.- In a device of the class described a chamber 'for generatinggases,j a converting chamber to convert a 'ber into a viscous mass, a reservoir for said mass and -a coagulating and spinning chamber for the converted cellulose and conveying. means connecting the diferent chambers and reservoir to each other.`

In testimonywhereof I ax my signature.

reinen Kirrsnn conjunction with copper, cellulose ibers i not

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