US1779505A

US1779505A - Preparation of coconut fibers for spinning and weaving

Info

Publication number: US1779505A
Application number: US323180A
Authority: US
Inventors: Barend Gysbertus Hendrikus Jag
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-12-05
Filing date: 1928-12-01
Publication date: 1930-10-28
Anticipated expiration: 1947-10-28

Description

Oct. 28, 1930. a. e. H. VAN DER JAGT 1,779,505

PREPARATION OF'COCONUT FIBERS FOR SPINNING AND WEAVING Filed Dec, 1, 1928 2 Sheets-Sheet 1 Oc t. 28, 1930. a. e. H. VAN DER J-AGT 1,779,505

PREPARATION OF cocouu'rrlmms FOR SPINNING AND WEAVING filed Dec. 1, 1928 2 Sheets-Sheet 2 C a mom- Pate ted Oct. 28,1930

1 UNITED STATES PATENT OFFICE BAREND GYSIBEBTUS HENDRIKUS VAN DER JAGT, OF THE HAGUE, NETHERLANDS PREPARATION OF COCONUT FIBERS FOR SPINNING AN D WEAVING Application This invention relates to thespinning or other manipulation of coconut fibers for the production of yarn or other products there-' from.

In British Patent No. 24:6,837 the advantages of fiattening'the fiber while in a moist condition are referred to and it is shown how this is done-by increasing the pressure between the feed rollers of a common spinning machine or by providing a special pair of rollers for this purpose.

For successfully carrying out the flattening a, moisture content of not less than some 50 per cent. was found to be necessary but, whenworking fiber in this condition over the card and drawing frames and the gill spinner, difliculty was experienced because the fiber tended to lick on the drawing rollers. On the other hand if the moisture was low, say 25 per cent., it was impossible to make sliver which would stand up atthe drawing frames and The object of the present invention is to overcome the foregoing difiiculties and to provide improvements in the manipulation of coconut fiber.

The invention consists in a method of utilizing coconut fiber for spinning according to which the fiber is worked in a normally dry condition over the preparing machinery and is moistened to the desired extent just before spinning.

The invention further consists in a method according to the preceding paragraph or apparatus for carrying the same into effect in which cast iron or like rollers provided with scrapers: are employed for the drawing rollers of the ,gill-spinning frame to facilitate the desired with 'the'addition bfstarclrwater' spinning of the fiber in a moist condition or if thereto. Y Y

The invention further consists in a method and/or apparatus according to either of the preceding paragraphs in which the sliver is subjected to a heavy pressure amounting, say, to about ten times the normal pressure in a card or drawing frame delivery roller.

The invention further consists in apparatus for spinning fiber in :a moist condition in filed. iDecemoerI, 1928, Serial No..823,18 0, and in Great Britain December 6, 192?.

I which means operating the starting device of of a gill-spinning frame is provided with a gravity controlled scraper fitted to the means which exert pressure on the roller so that the scr je per follows the movements of the roller.

e invention also consists in improvements in or relating to the utilization of coconut fibers as hereinafter described.

- Referring now to the accompanying diagrammatic drawings Figure 1 indicates a way of subjecting the sliver to aheavy and adjustable pressure at r the delivery rollers of preparing machinery such as cards and drawing frames;

Figure 2 shows an arrangement for moistening the sliver at the last delivery rollers before passing to a gill-spinning frame or the like;

Figure 3 shows a roller for example of, cast iron and fitted with automatic scraper means for passing the sliverinto the gill spinner.

Fi ure 4 is a smaller scale diagram showmg t e parts of the apparatus in relation to one another. Y so In carrying the invention into effect in one convenient form the fiber obtained from the coconuts, for example as described in American Patent No. 1,713,681, is worked over for example the carding machinery p, p and drawing frames 7, 1'' shown in Fig. 4" in an air-dried condition or say not exceeding in the neighbourhood of 25 per cent. total moisture and at the delivery rollers of the said carding machines and drawing frames the sliver is subjected to a heavy pressure which will be not less ,than three'times and prefi erably in the neighbourhood of ten times the pressure usually employed in such appliances. V

Figure 1 is a diagram indicating how this pressure may be applied in any of the said apparatus by connecting the frame indicated at a of one of a pair of delivery rollers b, c

of a carding machine drawing frame or the like (2 to levers e which are pivoted at the end e closely adjacent to the point where the tension member d is connectedthereto and are provided at the other end 6 at a considerably greater distance from the tension member 0! with a weight! which may be adjustable as to amount an /or position along the lever e and by means of which the pressure between the rollers 12, 0 may be adjusted.

The material after its passage through say a breaking and a finishingcarding machine p and p in the form of a sliver g may be passed through a series of, any desired number of drawing frames rr, being subjected to abnormal pressure at the delivery rollers of each of the machines in the manner already indicated. At the delivery roller of the last drawin frame for example 1'' and immediately be ore passing to the gill-spinning frame .9 the sliver is subjected to a moistening process, this being conveniently accomplished as indicated in detail in Figure v2 by fitting for example a starch water service 72. to deliver on to the roller 6' and controlling the service by means of a valve k the handle 12. of which is connected to the starting mechanism of the drawing frame for example by a rod 7' in such a manner that when the machine is startedthe valve h is opened and the starch water fed to the sliver 9 while when the machine is stopped the liquid ser-.

vice is automatically turned off by the act of stopping.

Figure 3 indicates means for passing the moistened sliver of fiber g to the gill-spinning frame 8; the drawing roller of this apparatus is constructed of cast iron or similar material and the roller is provided with automatic scrapers for clearing the sliver therefrom. I

The scrapers k may be conveniently hinged to the bearing members for the rollers by connecting them, say, to the members m which apply thenecessary I pressure to the rollers 6 0 The scraper k may consist of a suitable knife or the like which may be formed of brass or other suitable material occupying a more or less horizontal position at is closely adjacent to the region where the sliver leaves the rolls to enter the flier ning spindle n and thisknife member may be suitably connected by inclined arms is to a pivotal hinge Z upon the bearing, m, say on a horizontal line from the centre of the roller axis, the scraper being suitably loaded, say by a weight 0, so that it is maintained in contact with the roller by gravity.

By operating as above described it is possible to successfully card and draw the fiber in an air-dried condition without any tendency for it to lick upon the rollers due to the dry condition. At the same time the spin ningin a moist condition or with the appl1cat on of starch water facilitates the production of a much stronger yarn such as may be to a gill-spinnin and spin-- CQCO- example and that springs, screws or other suitable devices may be employed for exerting the necessary pressure.

' It is to be understood that the construction and apparatus described is given by Way of example only and that modification and additions may be introduced without in any way departing from the spirit of this invention.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is 1. A method of spinning coconut fiber comprising subjecting working the fiber in an airdried condition to preparatory carding and drawing operations with abnormally high pressure on the resulting slivers adding liquid to the sliver and subjecting the wet sliver operation. 7

2. Apparatus or spinning coconut fiber comprising preparing machines including drawing frames over all of which the fiber, is worked in an air-dried condition, means for subjecting the resulting slivers to abnormal high pressure in the delivery rollers of each machine, means for adding liquid to the sliver at the delivery rollers of the last drawing frame and means for subjecting the wet sliver to a gill-spinning operation.

3. Apparatus for spinning coconut fiber comprising preparing machines including drawing frames over all of which the fiber is worked in .an'air-dried condition, means for subjecting the resulting slivers to abnormal high pressure in thedelivery rollers of each machine, means for adding starch water to the sliver at the delivery rollers of the last drawing frame, a gill-spinning frame for receiving the wet sliver, drawing rollers of hard material such as cast iron for said spinning frame and resilient scraping means for said hard rollers.

4. Apparatus for spinning coconut fiber comprising carding machines and drawing frames over which the fiber is worked in an air-dried condition, means for loading the delivery rollers of each machine to subject the resulting slivers to abnormally high pressure, a liquid service fitted to the delivery rollers of the last drawing frame for moistening the sliver, a gill-spinning frame over which the wet sliver is worked, cast iron rollers for said gilll1 spinner and scraping means fitted to said ro ers.- I

5. Apparatus for spinning coconut fiber the resulting slivers to abnormally highhpresto Q 8. Apparatus for spinning sure, a liquid servicmfitted to the very rollers of the last drawing frame for moistening the sliver, a gill-spinning frame over which the wet sliver is worked, cast iron rollers for said gill spinner, means for exerting a high pressure on said cast iron rollers and a gravity controlled scra er fitted to the ressure exerting means so t at the scraper ollows the movements of the rollers. 6. Apparatus for spinning coconut fiber comprisin preparing machines including drawing rames over all of which the fiber is worked in an air-dried condition, means for subjecting the resulting slivers to abnormal high pressure in the delivery rollers of each machine, means for addin liquid to the sliver at the delivery rollers 0% the last drawing frame, a gill-spinning frame over which the wet sliver is worked, cast iron rollers'for said gill spinner, means for exerting a high pressure on said cast iron'rollers and a resiliently controlled scraper fitted to said rollers.

7. Apparatus for spinning coconut fiber comprising preparing machines including drawing frames over all of which the fiber is worked in and air-driedcondition, means for subjecting the resulting slivers to abnormal high pressure up to about ten times that usually employed inthe delivery rollers of" each machine, means for adding liquid to the sliver at the delivery rollers of the last drawin which t e wet sliver is worked, cast iron rollers for said gill spinner, means for exerting a high pressure up to about ten times that usually employed on said cast iron rollers and a resiliently controlled scraper fitted to said rollers.

coconut fiber comprising carding machines and drawing frames over which the fiber is worked in an air-dried condition and with an abnormally frame, a gill-spinning frame over subjecting the wet sliver to a gill-spinning operation. i

10. A method of spinning coconut fiber comprising subjecting the fiber when containing not more than some 25 per cent., of moisture topreparatory working,.subject1ng the resulting slivers to-not less than three and up to ten times the pressure'normally employed, moistening the sliver to a liquid content of not less than 25 per cent. and up to per cent, or more and subjecting thewet sliver to a gill-spinning'operation.

11. A method of spinning coconut fiber comprising subjecting the fiber when conta ning not more than some 25 per cent. of nunsture to preparatory carding and drawlng operations with pressures of not less than three and up to ten times the pressure normally employed on the resulting slivers, adding starch water to the sliver, heavily pressing the sliver with cleanly scraped hard close grained surfaces and subject ng the wet sliver to a gill-spinning operation.

12.'A method of spinnm coconut fiber comprising subjecting the fi er to preparatory working in an air-dri ed condltion, subjecting the resulting slivers to abnormally high pressure, adding starch water to the sliver, heavil pressing the shver wlth cleanly scraped har close grained surfaces and subjecting the wet sliver to a gill-spinning operation.

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

BAREND 'GYSBERTUS HENDRIKUS van der JAGT.

high pressure up to about ten times that i usually employed exerted on the resulting slivers in the delivery rollers of each machine, a starch water service to'Wet the sliver fitted to the delivery rollers of the last drawing frame and regulated by the starting and stopping mechanism thereof, a gill-spinnin frame over which the wet sliver is worke cast iron rollers for said gill-spinning frame, means for loading said cast iron rollers to subject the sliver to an abnormally high pressure up to about ten times-that usually employed and a resiliently controlled scraper fitted to the loading means so that the scraper follows the movements of the rollers.

9. A method of spinnin coconut fiber co'mprisin subjecting the ber 1n an airdried con 'tion to preparatory carding and drawing operations with abnormally high pressure of not less than three and up to about ten times that usually employed on the resulting slivers, adding liquid to the shver and