US1574877A - Machine for spinning or doubling yarns and threads - Google Patents

Description

March 2 1926. 1,574,877

F. FERRAND MACHINE FOR SPINNING 0R DOUBLING YARNS AND THREADS Filed Dec. 9, 1922 2 Sheets-Shee t l March 2 1926.

MACHINE'FOR SPINNING 0R DOUBLING YARNS AND THREADS Filed Dec. 9, 1922 2 Sheets-Sheet 2 F. FERRAND Patented Mar. 2, 1925.

UNITED STATES FRED FERRAND, OF SOUTHPORT, ENGLAND.

MACHINE FOR SPINNING OR DOUBLING YARNS AND THREADS.

Application filed December 9, 1922.

To all whom it may co-ncem:

Be it known that I, Fnno FERRAND, a subject of the King of Great Britain and he land, and a resident of Southport, in the county of Lancaster, England, have invented certain new and useful Improvements in Machines for Spinning or Doubling Yarns and Threads, of which the following is a specification.

This invention has reference to machines for spinning or doubling yarns and threads, and to machines wherein the yarn or thread is spun or doubled and wound on a spindle by the rotation of a positively-driven ring surrounding the spindle, which latter is rotated by the pull of the yarn or thread and is given a reciprocal travel to build up the wound y. rn. or thread into a cop or bobbin.

In machines of the kind referred to, it has already been proposed to automatically control the speed of the spindle by means of balls acting centrifugally in conjunction with discs mounted or fixed on the spindles and with surrounding stationary sleeves, and by means of pressure devices acting upon said balls. In operation, the balls acted alone during the formation of the bottom end of the cop, and as the latter was en larged the pressure devices came gradually and successively into action upon the balls which were loosely mounted upon the discs.

The main object of this invention is to provide improvements in spindle control mechanism whereby the speed of the spindle can be automatically controlled entirely by the centrifugal action of balls from the commencement of the formation of the bottom of the cop or the like to the completion of the finished cop or the like.

According to this invention, the balls are so mounted on or in a disc or the like on the spindle that while they co-act under centrifugal force with a stationary part surrounding the spindle, they are constrained to move only in radial paths relatively to the disc or the like and are compelled to rotate therewith about the axis of the spindle.

In the accompanying drawings Fig. 1 illustrates in vertical section one en'ibodiment of the invention;

Fig. 2 is a plan on the line 22 in Fig. 1;

Fig. 3 is an elevation at right angles to Fig. 1; and

Fig. 4t illustrates in vertical section a further embodiment of the invention.

Serial No. 605,814.

Referring first to Figs. 1, 2 and 3, 6 is a ring mounted in ball bearings in a fixed rail 7 and through which extends the spindle 8 which is rotatably mounted in a copping rail 9. The ring 6 has an unobstructed internal diameter suliicient to allow thecop 10 which is built up on the spindle, to pass through The ring 6 is mounted in the fixed rail 7 so as to extend both above and below the same, as shown. Above the rail, the upper end 6 of the ring is of conical formation and is formed with diametrically opposite lugs 11 provided with eyes 11 for leading the yarn to the spindle 8 and into which the yarn is passed by slits 11". Below the rail 7 the lower end of the ring is provided with a whorl 12 whereby the ring is driven from a pin roller as in an ordinary ring frame.

The copping rail 9 is given a vertical reciprocation and progressive descent by means of mechanism similar to that employed for operating the ring. rail of an ordinary ring frame.

The spindle 8 is mounted in a bracket 13 secured to the copping rail 9 and provided with a foctstep 14- for the lower end of the spindle and with a cap 15 which is formed with a sleeve 15 for the support of the spindle which passes thcrethrough. At the level of the upper part 16 of the bracket 13 the spindle has formed or mounted on it a disc 17 wherein is formed a plurality of equally spaced radial recesses 18 for the reception of steel balls 19. The recesses 18 preferably incline outwards, to a slight extent so that the balls 19 when inserted therein roll'tow a rds the spindle.

In operation the yarn is passed into one or other of the eyes 11 accordingly as twistway or weft-way yarn and cops are to be produced and th direction of rotation of the ring 6. The yarn is spun and wound on the spindle 8 by the positive rotation of the ring 6 and the cop 10 is built up by the vertical reciprojation and progressive descent of the copping rail 9 and spindle 8, which latter is rotated by the pull of the yarn.

As the spindle 8 is rotated by the drag of the yarn the balls 19 in the recesses 18 are thrown outwards by centrifugal force and bear against the inner surface of the upper part 16 of the bracket 18 and impose on the spindle a retardation dependent upon the speed of the spindle which varies accordingly as the yarn is wound upon the tapered nose of the cop. The balls 18 thus control the speed of the spindle and prevent same over-running as the yarn or thread passes from the base of the nose of the c'op'to the tip thereof. M p g The number of the balls 18 and the weight thereof may be varied according to the counts of the yarn or thread.

For further adapting the spindle for varying counts of yarn or thread the spindle may be weighted by balls 20 which may conveniently be placed in recesses 21 formed in th'eupper face of the disc 17 and of suiii cient depth to prevent the balls from being thrown outwards by centrifugal force. The number and weight of those balls may also be varied as found necessary.

In the embodiment of the invention illustrated in Fig. i the spindle 8 has mounted 011 it at the lower part of its taper a dished or concaved disc 22. The disc 22 has formed in it any appropriate number of radial grooves 28 in which, orin some of which, the balls 19 are arranged. In conjunction with the disc 22 is provided a surrounding stationary casing 26 furnished with an internal circumferential groove 27. In operation the balls 19 travel up the radial grooves 28 under the action of centrifugal force and enter the circumferential groove 27 in the casing 26 and press against the casing according to the speed of the spindle while they are carried round by the disc 22, the pressure of the balls against the casing imposing a corresponding retardation upon the spindle.

Above the casing 26 I arrange. a cover 29 through which the spindle 8 passes and which may rest on the casing and. be provided with a bearing 80 for the spindle.

The lower en'd of the stationary casing 26 is mounted on or in the copping rail 9 and is provided with a footstep bearing 31 for the lower end of the spindle. Below the concaved disc 22 'I mount on the spindle a second concaved disc 32 which may be stationary or may rotate with the spindle and on which I may place one or more balls newest? 20 of varying weights to adjustably weight the spindle to adapt it to the spinning or doubling of yarns or threads of varying counts. The concavity of this disc 32 is such that at all times the ball or balls 20 is or are in Contact with the spindle.

7 Instead of the copping rail 9 and spindle 8 being given a progressive descent, they may be given a progressive ascent, in which case the cop will be built up on the spindle downwards instead of upwards.

The improved spindle control means described are equally applicable for use in the doubling of spun yarns or threads and in the combined operations of spinning and doubling, as in spinning alone.

I claim:

1. In machines for spinning or doubling yarns and threads, a spindle, a member carried by and'rotating with the spindle and having radial guides, balls running in said guides in a radial direction under centrifugal force, and a relatively stationary ele ment surrounding the member and with which the balls engage to frictionally retard the rotation of the spindle.

2. The machine substantially as set forth in claim 1 in which the guides of said member are inclined downwardly toward the spindle so as to cause the balls to travel toward the spindle and away. from the relatively stationary element when the speed of rotation of the spindle falls below a certain rate.

3. The machine substantially as set forth in claim 1 in which the guides are formed by grooves in the upper face of the said member.

4. The machine substantially as set forth in claim 1 in which the guides are formed by grooves in the upper face of the said member, said grooves being inclined clownwardly toward the spindle so as to cause the balls to travel toward the spindle and away from the relatively stationary element when the speed of rotation of the spindle falls below a certain rate.

In witness whereof I have hereunto set my hand.

F RED FERRARI).

Images