US2808697A

US2808697A - Textile spinning

Info

Publication number: US2808697A
Application number: US501291A
Authority: US
Inventors: Harrison B Williams
Original assignee: Individual
Current assignee: Individual
Priority date: 1955-04-14
Filing date: 1955-04-14
Publication date: 1957-10-08
Anticipated expiration: 1974-10-08

Description

0d 8, 1957 'H. B. WILLIAMS 2,808,697

' A'I'EX'IILE ASPINNING V'inf Y 8 "l ATIORNEY Oct. 8, 1957 'l-l. B. WILLIAMS 2,303,697

Y TEXTILE sPINNiNG Y Filed April 14, 1955 2 sheets-sheet 2 A I NVENTOR HARA/Solv a. WILL/AMS ATTORNEY do representY one good operative means for carrying out I this invention. The take-up .assembly includes take-up roll 70 positively driven by pulley '72 and belt 74, a wind up roll 76 mounted for movement away from roll Q7 0 which 'drives it frictionally as the yarn builds up thereon. Y

In the driving sequence a motor not shown is'mountedv onthe frame forY driving-pulley 54 through belt 56. Pulley 54 rotates the spinningtube at a speed predetermined bythe pulley sizes and it also drives idler shaft 76 by means of belt 78 and pulley 80. This idler carries pulley 82 for driving shaft 34, roll 30 and pulley 84 by means of belt 40 and pulley 36. Pulley 84 drives belt 74 and pulley 72 for operating the take-up through roll 70. Roll 70 also mounts a pulley not shown `and Vthis pulley drives belt 86 which, in turn, drives idler shaft 88' through pulley 90. Shaft 88 also carries pulley 92 which drives feed roll by means'of belt 25 and pulley 24. Speed changes and relative speed variations are VVaccomplished .by using pulleys of' different diameters. It will f be obvious to one skilled in the art that these same results can `be'achieved Yby means of gears or other. mechanical arrangements commonly used for such purposes.

'In operation, asource of vacuum is irst placed in com municaticirwith vacuum box 44 and a piece of spun yarn 94 is fed into delivery tube 48 under the influence ofthe vacuum. At the 'same time, the end of roving fromlsupply bobbiuV 16 is led through hole 28 of the feed plate `26 and'under .feed roll 20 where it will be trapped between the end `of plate 26 and the card clothing 32.- The motor is then started and the fibers are continuously pulled out of the roving by the card clothing from which they-are removed by the air blast entering the feed end of feed-tube 42. In Fig. 3, the fibers are shown moving towards the apertures 64 in collector 46. Some of vthe collectedbers attach vthemselves to the piece of spun yarn 94 and the operation proceeds smoothly. Just the 'merel withdrawalofthe spinning .yarn will clear ythe col- Vlector*continuously and the twist imparted by the rela- Ative rotation of the collector and the take-up imparts strengthto the yarn. y The role of the burrs 66 is not completely clear, but it has been clearly established that they do assist in making a better yarn, partcularlyin terms of uniformity. f Y

v.The modified spinning tube. shown in Fig. 5 includes a feedtube 142, a delivery tube 148 and'a'collector 146 provided kWith a pluralityV of apertures 164. 'lt operates in exactly the same manner as the tube shown in Fig. 3 although the-yarnA ittspins is not of as high quality as thatof the preferred form of the invention. Other modiiications Yhave `been tested .and found satisfactory. In one: of the more `successful of these, the -holes 64 are bored at yabout a 45 angle from the delivery end of the collector inward towards the axis.v .This also appeared to facilitate the formation of burrs 66.l i

Other vn 'iodiiications will be obvious to 'those skilled in the art. i l l Y .'.I claim:

1. A device for spinning textile bers comprising a rotating spinning tube having a feed end and a delivery cn'd driven at a predetermined speed, said tube having a plurality of apertures intermediate its ends forming a collecting surface therein, a source of vacuum surrounding said tube at said apertures, means for feeding individual fibers to the feed end of said tube and take-up means for withdrawing yarn from the delivery end of said tube, said take-up means being fixed with respect to the rotation of the spinning tube, whereby twisting is effected.

2. A device as set forth in claim 1 wherein said collecting surface is provided with means for holding the fibers on said surface in generally the same relationship in which they are collected thereon.

3. A device as set forth in claim l'wherein the feed 7 end of said tube has a larger inside diameter than the delivery end.

4. A textile yarn spinning apparatus comprising a spinning tube including a feed tube, a coaxial bale provided with a central` delivery port and an .air escape means adjacent theouter surface of the balefor forming a col` lector, a source of vacuum for continuously withdrawing air` through said air4 escape means and establishing an air conveying system in said feed tube, means for rotating said spinning tube at a predetermined speed, means for supplying bers to the spinning tube at a predetermined rate, and yarn take-up means for withdrawing said iiliersfrom said delivery port at a predetermined rate, said last named meansbeing fixed with respect to the rotation of said spinning tube, whereby twisting is effected.' 5 A device as set forth in claim 4 wherein the batheV is a` Yroundv 'plate extending across the spinning tube, a.' plurality of small projections are positioned adjacent theV airescape means, the air escape means is a plurality of small ,apertures spaced crcumferentially about the wallf of the spinning tube on the feed tube side of the baille? and ,in closeproximityf thereto, and the feed tube is of a larger diameter than the delivery port.

6.' A-device as set 'forth `in claim 5 wherein the batile has a radius'between the length of the fibers being spun and one-half the 4length of the fibers being spun and the delivery Ytube has a length equal to more than three times the' length of the ber being spun.

7. YA device Yas set forth in claim 6 wherein the diameter 'of the feed tube is less than one-half the diameter of the baie. L

8. A device as set forth in claim 7 wherein the delivery portis 4vprovided with a delivery tube' extending axially towardsthe take-up means. Y

.. 9. A device as set forth in claim 8 wherein the feed tube mounts the bearings and drive means for rotating the spinning tube.

References Cited the le of this patent UN'ITED STATES PATENTS 279,997 Waring r lunew 2 6, 1883 n 486,593, Woll Nov. A22, 1892 639,556 Metca1f Dec. 24, 1901 1,008,144.V .Hawley Nov. 7, 1911 '1,500,931'` vHooper July 8, 1924v ,Ziff-.5195.04VV

Mayo 0ct.-19, A1948`