US2021517A - Tape driving of spindles in ring spinning and doubling frames - Google Patents

Description

A. NEILSON TAPE DRIVING 0F SPINDLES IN RING SPINNING AND DOUBLING FRAMES Filed May 22, 1935 Patented 'Nov. 19, 1935 UNITED STATES PATENT OFFICE TAPE DRIVING OF SPINDLES IN RING SPINNING AND DOUBLING FRAMES Application May 22, 1935, Serial No. 22,793 In Great Britain August 18, 1934 3 Claims.

The invention relates to the tape driving of spindles in ring spinning and doubling frames, in which frames provision has to be made whereby the spindles may, at will, be driven either weftway or, alternatively, twist-way, as understood in the industry concerned.

It is'known that in a double-sided spinning frame, for example, each pair of spindles on one side of said frame and the corresponding pair of spindles on the other side thereof are usually driven by one continuous tape, which is passed round the wharves of the four spindles referred to, and also about theusual tin roller between, as well as about a tape tension pulley.

There are thus as many tapes as sets of four spindles in the frame mentioned.

When the tapes are arranged for the spindles to turn or revolve in the direction suitable for such as weft-way spinning, the tension pulley in each case is inclinedsideways to enable the conditions named to be attained; but when twistway of spinning is desired, the tension pulley in each case is inclined sideways in the opposite direction to that first referred to, the tape concerned being also re-arranged for the purpose. But in addition, a slight movement in a longitudinal direction relatively to the longitudinal axis of the tin roller is also involved in the operation to the extent of said movement being determined by the gauge, the diameter of the wharves employed and other data known to the operator. Various means have hitherto been adopted for enabling the change in inclination and position of the several tension pulleys to be brought about, and the object of the invention is to provide means to this end whereby not only the change in inclination of all the tape tension pulleys concernedin the frame is attained, but also the longitudinal disposition named by the mere rotation to a desirable extent about their axes of a number of supports or lever-brackets of a particular kind hereinafter described.

For this purpose, the lever-brackets may be mounted on a shaft common to them all, the latter being capable of rotation to a desirable extent for the purpose mentioned. That is to say, each lever bracket'or equivalent acts as a support for a tape tension pulley, and has projecting arms for supporting purposes, one set of the arms being used to support the tension pulley for weft-way spinning, and another set of arms, on an opposite part of the bracket, being capable, by the process of rotation of the bracket about its axis, of being brought into position suitable for supporting the tension pulley when twist-way spinning is to be arranged for, the slight longitudinal movement already referred to automatically taking place when the rotation named occurs.

In this way, the arms named may be said to be 5 in twin formation relatively to each other, and as many lever-brackets provided as stated may be employed as there are sets of four spindles in the double-sided frame assumed. But the invention is applicable to the case of a single-sided 10 frame, if desired.

With reference to the accompanying drawing, illustrating a form of the invention applied to a spinning frame of the double-sided type, Fig. 1 is a sectional end elevation of parts of said frame 5 arranged according to the invention, the frame parts themselves being merely shown by broken lines to a large extent, for the sake of clearness of other parts involved therewith.

Fig. 2 is a sectional view of a portion of Fig. 1 20 but at right angles thereto.

Fig. 3 is a plan View of a portion of the said Fig. 1.

Fig. 4 shows on an enlarged scale in elevation, and partly in section through line 492-432 of 5 Fig. '7, two of several lever-brackets according to the invention mounted on a shaft indicated by broken parts only.

Fig. 5 shows the brackets illustrated in Fig. 4 after they have been brought to altered positions, and Fig. 6 shows in perspective, and on a reduced scale, a group of four spindles for a double-sided spinning frame, with a continuous tape passing about a tin roller and an inclined tension pulley, for driving said spindles in a given direction of rotation according to the kind of spinning in- Volved.

Fig. '7 is a side view of one of the lever-brackets of Fig. 4.

The framing of the machine is indicated at l 40 in Fig. 1 a spindle rail at one side of the frame being shown at 2, a portion of a spindle mounted thereon being also shown at 3. A continuous tape 4 passes round the Wharve of this spindle, over the usual tin roller 5, back again round the tension pulley 6, and thence to the wharve of the spindle on the opposite side of the frame or machine, as more fully indicated at Fig. 6.

The tin roller 5 is assumed to be driven in the usual manner, and the motion thereof transmitted to the tension pulley 6 enables the spindles indicated in Fig. 6 to be driven either in the direction requisite for weft-way spinning, or, alternatively, twist-way spinning according tothe manper in which the tension pulley 6 is inclined and positioned, and the tape 4 arranged about the parts concerned to suit. Each set of four spindles, similar to the set in Fig. 6 is assumed to be similarly driven, along the whole length of the frame or machine.

In Fig. 1 it will be seen that the tension pulley 6 is supported in bearings 6:1: carried by a lever 1 balanced at its upper end 1a.. This lever is formed with a cross pin at 8, the support for which, according to the invention, is provided by a pair of slotted inclined arms projecting from a boss or part 9, the said arms are marked 93:, while a further pair of inclined arms 9y on an opposite side of the boss 9, are in the case of Fig. 1 aforesaid, not at the moment in use. The various arms referred to are more clearly indicated at Figs. 4, 5 and '7.

The device 9, 9m, 9y, thus forms a reversible lever-bracket or support for the tension pulley 6, which lever-bracket is here fixed to a shaft l0 supported in bearings l I from the framing I a far end of the shaft being shown in Fig. 2 provided with a projecting pin 12, capable of coming against a flat or stop-like part, of a fixed character, at l3.

That is to say, said stop and abutment device limits the possible movement of the shaft ID in a circular direction. In the present case said possible movement is one of about degrees of angle.

In Fig. 4, two, of many reversible lever-brackets according to the invention along and attached to shaft it, are merely indicated, and a pin, such as 8 of Fig. 1 is assumed to be capable of taking into the bearings or slots l4 formed in the arms 9:0 for the conditions according to said Fig. 1.

The inclination of the central axis of the bearings l4 results in the tension pulley 6 being inclined sideways to the requisite extent for the particular manner of spinning mentioned. For example, if the spindles were caused to rotate clockwise, or have compound motion of that of a right-handed screw thread, the spinning would be twist-way, and otherwise it would be weft way.

For changing the angulation sideways of the tension pulley 6, after the unmounting of the lever l with the pin 8, all that is requisite for the purpose is to revolve the shaft !0 to its opposite position, determined by the stop and abutment device l2 and I3 before-named, when the arms 91: previously in use are thereby moved out of position, and the arms 9;; brought into position for allowing the pin 8 to take into the bearing thereat, as will be understood (Fig. 5). But the rotary motion of the shaft Ill and the angularity of the arms on the bracket 9 enable the tension pulley 6 to have its inclination sideways altered to the extent and in manner desirable for the purpose stated. It will be seen from the inclinations of the arms 93: and By to the longitudinal axis of the shaft IEJ, that the revolution of said shaft for the purpose abovenamed also results in a slight change of position of the tension pulley 6 along the axis parallel to that of the shaft l0 aforesaid.

This longitudinal disposition (the amount of which depends upon the gauge and diameter of wharve concerned) is indicated with the use of parallel broken lines in Fig. l. That is to say, the horizontal distance D represents a small longitudinal disposition, but by an alteration in the original angulation of the arms of the bracket, this horizontal disposition may be greater in amount as the conditions require.

Convenient means of any suitable character may be used for turning the shaft I0, but in the present example a worm-wheel on said shaft is marked l5, and is capable of being moved by a worm IE on a shaft I? (Fig. 1) in bearings I8 from the frame I, the said shaft also being capable of operation by means of a hand lever I800 external of said frame.

For practical operation, a lever-leg I9 is shown in Fig. l projecting from the boss carrying the pin 8 or from lever 1, with a weight at its extreme end. The weighted parts used and shown are so proportioned and arranged that during normal running of the tin roller and tension pulley the latter counterbalances the effects of the weighted parts la: of lever I, and the weight on the end of lever leg l9 gives necessary tension to the tape.

In the case of a breakage of a tape and to limit the distance of fall of the lever-leg I9, I provide the reversible lever device 9 with projecting parts or stops 20, the lower one of which (according to the position of said device 9 at the moment) prevents the lower part of lever 1 rising beyond.

the position of said stop 20 concerned, and so prevents the lever-leg l 9 falling too low.

The invention would not be altered in those cases where the shaft, such as H), is made up of sections coupled together so that any one section is disconnected for inspection of the leverbracket or brackets thereon, or for replenishment purposes, or otherwise.

I am aware it has been proposed to provide brackets supporting tape pulleys, and mounted on a shaft, rotation of which operates through the brackets before-named to change the inclination only, of the said tape pulleys. Such a device has been intended for use generally in narrow 3 the spindles are driven by tapes from a driven roller, tension pulleys over which the tapes are passed, means for altering not only the sideways inclination of the tape-tension pulleys, but also for producing a slight longitudinal change in position thereof, comprising a reversible leverbracket for each tape-tension pulley, and capable of partial rotation about a central axis, inclined supports for the said pulley projecting in different directions from the said bracket, oppositely dis posed bearings in said projections for supporting the pulley aforesaid, and whereby partial rotation of the lever-bracket about its axis beforenamed enables the tension pulley to be re-supported by the said lever-bracket for changing the conditions suitable for twist-way spinning to weft-way spinning, or vice versa, as herein described.

2. In ring spinning or doubling frames in which the spindles are driven by tapes from a driven roller, tension-pulleys over which the tapes are passed, means for altering not only the side-ways inclination of the tape-tension pulleys, but also for producing a slight longitudinal change in position thereof, comprising a shaft-supported and weft-way spinning, or vice versa, as herein described.

3. In ring spinning or doubling frames in which the spindles are driven by tapes from a driven roller, tension pulleys over which the tapes are passed, means for altering not only the side-ways inclination of the tape-tension pulleys, but also for producing a slight longitudinal change in position thereof, comprising a reversible lever-bracket for each tape-tension pulley, a revoluble shaft to which the said bracket is attached, said shaft capable of partial rotation about its axis, inclined arms projecting in diametrically opposite directions from said bracket, oppositely disposed bearings in said arms for supporting the pulley aforesaid, and whereby partial rotation of the shaft aforesaid about its axis enables the tension pulley to be re-supported by the said lever-bracket for changing the conditions for twist-way spinning to weft-way spinning or vice versa, as herein described.

ALEXANDER NEILSON.

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