US1795381A - Machine for winding elastic or other thread around spherical bodies - Google Patents

Description

G. E. TURPIN 1,795,381

R THREAD AROUND SPHERICAL BODIES March 10, 1931.

MACHINE FOR WINDING ELASTIC OR OTHE Filed May 17 192,5 2 Sheets-Sheet 1 March 10, 1931. 1,795,381

MAGHINE FOR WINDING ELASTIC OR OTHER THREAD AROUND SPHERICAL BODIES G. E TURPIN Filed May 17 1925 v 21Sheet s-Sheet 2 SHVENTO'E Patented lt'lar. 1&1931

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enorrnay nnean rennin, or LONDON, ENGLAND, ASSIGNOR TO THE INDIA'BUIBIBER,

GUTTA PERCHA .85 TELEGRAEH FORKS c A BRITISH o'er/many QI/ZPANYLIMITED, or LONDON, ENGLAND,

MACHINE FOR, WINDING ELASTEC 0B, GEHTER THREAD AROUND SPHEBICAL BODIES Application filed May 17, 1828, Serial No. 278,486, and in Great Britain July 11, 1927.

This inventionconsists in improvements in or relatin to machines for winding elastic or other thread around spherical bodies and is directed to that knowntype of machine in which the spherical body is rotated about varying axes by being held against one or more work-supporting rotated rollers, which or one or more of which is or are reciprocated endwise while rotating, said spherical body being held in position against said roller orrollers by a guided presser. j The presser can carry one or more idle rollers and is mounted so as to be movable in order to carry these idle rollers towards or'away from the work that rests against said rotated rollers and the presser is urged theretowards by itsv own gravity or by a spring or weight associated therewith.

This invention is particularly applicable to machines of the type described for winding I cores in the manufacture of golf balls.

In the production of golf ball cores in machines of the type described, it has been found that a more evenly-wound core is obtained if the presser carrying the idle roller or rollers has applied thereto intermittent urgings in the direction of the aforesaid rotated rollers,

said intermittent urgings being additional to the normal thrust caused by the presser and its appurtenances and the action of the springs or weights commonly associated therewith.

This invention has for its object to provide in such machines a centrifugal or other device for applying the required periodic urgings to the aforesaid presser. This device preferably applies the urgings automatic-ally at predetermined intervals.

Accordingly, this invention comprises for a winding machine provided with a worksupporting roller and with a guided movable member which transmits pressure to the r0- tating work to force it against said roller,the provision of a centrifugal device whichreceives support from said member and which comprises .the combination of a movable weight, means to constrain said weight to move in a curved path and means which for the purpose described give to that weight in relation to said member aperiodic movement generating a centrifugal thrust.

along its curved path. Conveniently, this movement is along a path whichisa circular curve, for it is easy to move along and to constrain to such a simple path 'aweight that is The purpose of this combination is that in a simple movement of a kind which can be brought about by simple mechanism, the centrifugal action of th'e weight shall periodically cause an increase above a mean level of the pressure with which the presser acts on the rotating work. These fluctuations in pressure result in the desired automatic intermittent urgings of the work in the direction of the aforesaid rotated work-supporting roller or rollers.

The accompanying drawings-illustrate a known form of winding-machine of the type hereinbefore described for the production of golf ball cores that comprises improvements according to the present invention.-

In these drawings: Figure 1 is a side elevation, and

Figure 2 a view at right angles to Figure 1 of this machine on the line 22 of Figure 1. r

In Figure 2 certain of the parts which appear at the left-hand in Figure l are removed, for the sake of clearness. 1 v

Figure 3 is a view of the lower part of Figure 2 with the parts replaced that in Figure 2 were removed;

Figures land 5 are two views at right angles to one another (Figure 5 being a section on the line 55 of Figure 4') of an alternative construction, hereinafter described in detail of a part of Figure 1. 7

Like reference-numerals indicate like parts throughout the drawings. i v g 7 With reference first to Figures 1, 2 and 3, the machine comprises abase 1 from which extend upwardly two side frame members 2 and 3 respectively which are joined above the said base by an arch made up of three portions 4, 5 and 6. Extending betweensaid side frame members 1 and 2 andmounted to rotate in bearings therein are two spindles 7 and 8 disposed parallel to one another in the same horizontal plane. The spindle 7 carries a cylindrical rubber-covered-roller 9 and the spindle 8 carries a similar roller 10; each roll with, but as to be slidable enowise there along. A cam groove 11 in roller 7, and 12 in upon rotation the endwise movements of the rollers are opposed to one another belng 180 out of phase with one another. The aforesaid spindles and rollers are arranged in the machine so that the rollers lie close to but clear of one another, see Figure 2, and gearing of a well-known kind'is provided to rotate said rollersin the same direction.

In the present example, this gearing comprises a fast pulley 15 and a loose pulley 16 on the shaft 17 which last is fixed in the machine-frame. Integral with the fast pulley 15 is a toothed pinion 15 gearing with a toothed pinion 18 on the spindle 7. The pinion 15 gears correspondingly with a corresponding pinion 88, see in Figure of the drawing, that is fixed to the spindle 8. Both the spindles 7 and 8 rotate in the same direction. On the left-hand end of the shaft 8 which is concealed in Figure 1 behind the shaft 7, but is seen in Figure 3, is a pinion 19 gearing with a larger pinion 2O mountet on an arm 21 secured to the ma.chinefram-- ing. This pinion has secured to it a pulley 22.

Extending vertically through and guided by the aforesaid arch made up of the parts l. 5 and 6 above said rotated rollers 9 and 10 is a presser 23 mounted so as to be movable up and down in the arch as in a guide. To the lower end of said presser is secured a bracket 24 in which is mounted two idle rollers 25 and 26 the axes of which are disposed in the same horizontal plane and parallel with the axes of the aforesaid rotated rollers 9 and 10. The said idle rollers 25, 26 have wide V-shaped faces and are arranged to bear against and hold a golf ball core 2?, Figure 2, in position against the rotated rollers 9 and 10. The vertical presser 23 carrying said idle rollers 25, 26 may be loaded if required; it presses the core 27 against said rotated rollers 9 and 10 in such manner that the required turning movements are imparted thereto by the rotation and endwise reciprocation of said rollers, as is well-known in the art.

In applying the present invention to the said machine, a centrifugal device as aforesaid is used. The example illustrated in the drawing is constructed as follows There is fulcrumed to the upper end of an arm that forms part of a bracket 28 extending upwardly from the machine, a lever 29 the free end of which rests upon and receives support from and is movable up and down with the upper end of the presser 23 carrying the idle rollers 25 and 26. The bracket 28 so positioned and the lever so mounted thereon that said lever extends parallel with the axes of the rotated rollers 9 andlO and at approximately right angles to the presser 23 carrying said idle rollers 25 and 26. The free end of said lever which rests on a rubber cushion 30 at the upper end of said presser so that the cushion is between the core 27 and a rotating eccentric weight hereinafter described, has rotatably mounted on an axle 31 that is fixed in the lever a wheel 31 the axis of said wheel extending at right angles to said lever and said presser. Secured to said wheel on one side of the axis thereof is a weight 82 rotating with and constrained to move in a circular path by the wheel but being eccentric to the i) thereof; this weight exertsthe centrifugal action hereinafter described. The wheel 31 has a groove 33 around its periphery to receive a driving band 34 which passes thereto from the driving band pulley 2 aforesaid secured to one of the spindles of the rotated rollers. This band 34 is directed by guide pulleys 36, 37 mounted on the aforesaid bracket 28 adjacent the fulcrumed end of the aforesaid lever 29. Secured to the lever 29 between the fulcrumed end and the end carrying the weighted wheel 31 is a tension spring 38 which extends downwardly therefrom and is secured to a threaded pin 39 which passes freely through a lug d0 extending from the bracket 28 on the frame of the ma chine. The end of said pin below said arm carries a threaded nut 41 so that the tension of said spring can be adjusted as required; it exerts a thrust on the lever 29 to press it against the cushion 30 on the presser 23 from which the lever receives support.

In Figures 4 and 5 a construction of wheel 42 is shown which may be substituted for the weighted wheel 31 of Figures 1 and 2. The disc of the wheel 42 is of uniform section, but it carries two blocks 4-3, 44 which together constitute a weight of material eccentric to the axis of the wheel and rotating with it but turning in a circular path, the radius of which can be altered, for the weights are connected to one another by bolts 45 which pass through holes in which they are a close fit, these holes being made in the blocks. The bolts where they pass through that portion of the margin of the wheel disc that is between the blocks, do so by way of parallel slots 46, so that if the bolts are slackened, they can be moved up and down in these slots 46, and they will take the blocks with them nearer to or further from the aXis of the wheel 42, after which they can be tightened up to secure the blocks in the new position to which they havethus been adjusted. Thus the radius of the circular path described by the blocks during the rotation of the wheel 42 can be changed from time to time, as may be desired.

it will be realized tiat upon rotation of the wheel 31 or its substitute 42 in he machine of Figures 1 and 2, the weight or the weights a3 and a l th roof eccentric in relation to the axis of rotation will exert a corn trifugal action and that this action when it is periodically in tie direction of the presser 23, which it will be at regular interi'ais if the wheel 31 be rotated or oscillated regularly, will. be transmitted to the lever 29 which in its turn transmits a thrust or to the presser 23; the idle rollers 25 and 6 transmit this urge to the work. One such urge is im arted downwardly on each downward approach of the w 'ght that occurs once in each rotation of said weighte l wheel. Alternately to each such urge there is a relief of some of the downward pressure upon the pres 23 by reason of the retirement of the weight from that presser in the upward move ment of the eccentric weight in relation thereto after it passes the presser. Thus there is centrifugally produced in simple continuous movement of the wheel 31 or its substitute 42, a periodic increase above the mean level of the pressure which the member transmits to the rotating work 27, A similar result would ensue were such wheel to be rapidl oscillated through, say, a quarter revolution to swing the eccentric weight one side of the vertical centre-line of the member 23 in Figure l.

I claim:

1. In a winding-machine, the combination of a driving roller against which the roh 'ng work bears, a guided movable member which .ransmits pressure to the rotating work to force it against said roller, a centrifugal device which periodically decreases and increases alternately the pressure upon said member.

2. In a winding-machine, the combination with a work-driving roller and aguided movable member which transmits pressure prises t-he'combination of a movable weight,

means to constrain said weight to move in a curved path, and means which give to that weight in relation to said member a periodic movement along its curved path.

3. In a windingmachine, the combination with a work-driving roller and guided movable member which transmits pressure to the rotating work to force it against said roller, of a centrifugal device which receives support from said member and which comp *ises the combination of a wheel, an eccentric weight in the circumference of said wheel and a driving means for said wheel. 7

4. In a winding-machine, the combination with a worlr-drivingroller and a guided movable member which transmits pressure to the rotating work to force it against said roller. of a centrifugal device which receives support from said member and which comprises the combination of a wheel, an eccentric weight in the circumference of said wheel, means to alter the radius of-the path of said weight, and a driving means for wheel.

5. In a winding machine, the combination with a work'driving roller and a guided mov able member which transmits pressure to the with a work driving roller and a guided movable member which transmlts pressure to the rotatingwork to force it against said roller, of a wheel, an eccentric weight in the circumference of the said wheel, a driving means for said wheel, a leversupporting said wheel and pivoted to the frame of the machine and supported by the aforesaid guided movable member, the arrangement being such that athrust is applied to the lever to press itagainst that part of the aforesaid guided movable member on which the lever is supported. I 17. In a winding machine, the combination with a work-driving roller and a guided movable member which transmits pressure to the rotating work to force it against said roller, of a cushion through which the said member transmits its pressure to the work, and of a centrifugal device which receives support from said member and which comprises the combination of a movable weight, means to constrain said weight to move in a curved path, and means which give to that weight in relation to said member a periodic movement along its curved path.

8. In awinding-machine, the combination with a work-driving roller and a guided movable member which transmit-s pressure to the rotating work to force it against said roller, of a cushion through which the said member transmits its pressure to the work and of a. centrifugal device which receives support from said member, the centrifugal device comprising the combination of a wheel, aneccentric weight in the circumference of said wheel and a driving means for said wheel.

9. In awinding-machine, the combination with a work-driving roller and a guided mov-' able member which transmits pressure to the rotating work to force it against said roller, of a cushion through which the said member transmits its pressure to the work, and of a centrifugal device which receives support from said member, the centrifugal device comprising the combination of a wheel, an eccentric weight in the circumference of said wheel, means to alter the radius of the path of said weight, and a driving means for said wheel.

10. In a winding machine, the combination with a work driving roller and a guided movable member which transmits pressure to the rotating work to force it against said roller, of a cushion through which the said member transmits its pressure to the work, a wheel, an eccentric weight in the circumference of said wheel, a driving means for said wheel,

and a lever pivotedat one end tothe frame of the machine and supported at its opposite end by said guided movable member, said wheel being supported by said lever.

11. In a winding machine, the combination with a work driving roller and a guided movable member which transmits pressure to the rotating work to force it against said roller, of a cushion through which said member transmits its pressure to the work, a wheel,

an eccentric weight in the circumference of said wheel, means for driving said wheel, a lever pivoted to the frame of the machine and supported by the aforesaid guided movable member, said wheel being supported by said lever, the arrangement being such that a thrust is applied to the lever to press it against that part of the aforesaid guided movable member on which the lever is supported.

In testimony whereof I aflix my si nature.

GEOFFREY EDGAR TUEPIN.

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