US1457817A - Textile spinning and twisting process - Google Patents

Description

June 5, 1923. 1,457,817

W. BINNS TEXTILE SPINNING AND TWISTING PROCESS Filed Dec. 21, 1921 3 Sheets-Sheet l June 5, 1923. 1,457,817

, W. BINNS TEXTILE SPINNING AND TWISTING PROCESS Filed Dec. 21, 1921 3 Sheets-Sheet 2 June 5, 1923." 1,457,817

w. BINNS TEXTILE SPINNING AND TWISTING PROCESS Filed Dec. 21, 1921 3 Sheets-Sheet 5 ///////////I////ll//IIIIIIIIII// mm Julie 5, 192a.

WILLIAM BINNS, OF BINGLEY, ENGLAND, ASSIGNOR F ONE-HALF T0 JOSEPH DOWNING HANDER, 0F BINGLEY, YORK, ENG!)- TEXTILE SPINNING AND TWISTING PROCESS.

Application filed December 21, 1921. Serial No. 528,880.

7 '0 all whom it may concern:

Be it known that I, WILLIAM BINNS, a subject of the King of Great Britain, residing at Bingle in the county of York and Kingdom of ngland, have invented certain new and useful Improvements in Textile Spinning and Twisting Processes, of which the following is a specification.

'The present invention relates to an improved process and apparatus for the spinning of textile fibres or the fine spinning of textile yarn or sliver of the type in which the yarn is spun b theaction of centrifugal force against the interior of a rotating cylinder.

According to the present invention, a textile yarn or sliver unspun or partially spun and twisted is passed by means of an air cur rent to the spinning place in contradis- 2o tinction to the rigid guides hitherto proposed for the urpose. It is preferably passed down a tu e co-axial with it, rotating at a high speed of revolution preferably from 20,000 to 60,000 revolutions per minute; the purpose of this tube is to impart some degree of twist to the yarn at the commencement of a spinning operation and so allow the machine to function automatically immediately it is started without any piecing up or hand threading of the fibre being necessa This mvention is more particularly described with reference to the accompanying drawings in which Figure 1 is a sectional side elevation showing one such arrangement.

igure 2 is a sectional side elevation in large scale of a doffing device co-operating with the arrangement of Figure 1.

Figure 3 shows a modified form of dofiing device.

Figure 4 is a detail being a sectional view on the line 4-4 of Figure 1.

Figures 5 and 6 show sectional elevations and plan views respectively of the driving mechanism.

A textile yarn'spun or partially spun and twisted is passed rom a cop cally shown at 1, within a container 2, hav ing an air inlet 3. These parts are however not forming any part of the present invention and are Shown purely diagrammatically.

diagrammati-- The sliver or end to be spun passes between a series of slatted or slotted drawing rollers 4-, 5, 6. In the arrangement shown these rollers rotate about their own axes but they may also rotate about the normal axis line of the fibre or sliver. The sliver is automatically passed down through a co-axial tube 7, by means of an air current passing down said tube. The distance between the drawing rollers 5, 6, is preferably substan tially equal to or less than the normal staple length of the yarn which is found to be an essential condition for high speed spinning by the present process.

The end of the yarn asses into a tube 9, coaxial with the tube and forming an extension thereof which however is provided with driving teeth 10 meshing with teeth 11, on a driving wheel 12, which preferably, as shown in Figs. 5 and 6, drives a number of spindles, for instance four, equally spaced around it. The toothing 10, 11 is preferably doubled helical toothin The yarn is spun by t e action of centrifugal force as the end 13, leaves the tube 9 and becomes coiled in the form of a hollow cop on the interior of the cap 14, which may be raised and lowered relatively to the end of the tube 9, following any desired known cop spinning method, and which preferably rotates at the same speed as the tube.

Owing to the distance between the spinning point and the drawing rollers the unsupported fibre would break if inertia and a certain degree of twist were not applied to it by the rotation of the tube 9.

When however, it is desired to doff the spun co from the interior of the cap 14, a cop tu e or spindle is inserted axially with the guide tube 9, the cap l4 stopped or slowed down relatively to the tube 9, when it will be found that on continued rotation of the cop tube or spindle the cop of yarn will contract and become engaged by the said spindle or cop tube.

This dofling may be assisted by the feeding in of compressed air at the top of the cap 14:, or b an arrangement for instance as shown in ig. 3, in which a cop tube 15, is used for dofiing which is hollow and is connected with a supply of compressed air from an air trunk 16, which emer es from holes 17, in the top of the tube a ove the spun co in the cap 14. This compressed air acts to low down the spun cop on to the interior cop tube.

A plug 18 is preferably provided at the top of this cop tube to engage with the end of the guide 9 to be driven by it.

A dofling arrangement is more particularly shown with reference to Fig. 2 in which the tube 9, is arranged to recede upwards when it is desired to dofl and an internal spindle 19 on a bracket 20 which can be lifted or lowered as desired from a pulley 21, has a splayed end 22, forming a driving clutch so that this spindle will be rotated at the same speed as the tube 9.

After the clutching of these parts together the hollow cop tube 23, may be raised by operation of the pulley 24, which is intermittently rotated in opposite directions by a transverse mechanism of well known type, which forms no part of the present invention and therefore is not illustrated until the tube lies Within the hollow cop of am 25, when the outer cap 26, is slowed own by interrupting the driving connection or by means of a brake or otherwise, when it will be found that if the rotation of the spindle 19, which engages by means of keys 27, with the hollow cop tube 23, is maintained, the hollow cop of yarn will auto matically gradually shrink on to the cop tube 23 and become detached from the guide when it can be lowered into the position shown in Fig. 2, whereupon then the spindle 19, can be lowered and the cop tube23, doifed and replaced by a fresh tube or bobbin as desired.

It has been found that certain mechanical features of the drive for the various parts are of importance. For instance it is preferred that the driven pinion should be less than inch pitch-diameter and that the eagan tooth should have a rounded top with a 29 straight side and a root clearance, the pinion teeth preferably double or single helical.

The parts are preferably mounted throughout on ball or roller bearings automatically lubricated so that a high speed can be obtained without vibration or expenditure of unnecessary ener I declare that w at I claim is 1. A textile spinning process comprisin drawing a fibre sliver by rollers, leading sai fibre silver by means of an air stream down a coaxial tube and projecting it by centrifugal force within a hollow rotating cap.

2. A textile spinning rocess comprising drawing a fibre sliver 'y rollers, leading said fibre sliver by means of an air stream down a coaxial tube projecting it by centrifugal force within a hollow rotating cap and imparting relative axial motion between the end of the tube and the cap to obtain a traverse.

3. A textile spinning rocess comprising drawing a fibre slivery rollers, leading said fibre sliver bymeans of an air stream down a coaxial tube projecting it by centrifugal force within a hollow rotating cap, impartin relative axial motion between the end of t e tube and the cap to obtain a traverse, inserting a cop axially with the tube when it is desired to dofi' and slowing down the cap to allow the spun fibre within it to contract on to said cop.

In witness whereof, I have hereunto signed my name this 7th day of December 1921, in the presence of two subscribing witnesses.

WILLIAM BINNS.

Witnesses:

J. D. MANDEN, FRANK HOLLIDAY.

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