US2266121A - Cheese-winding apparatus - Google Patents

Description

- Dec. 16, 1941.

E. KINSELLA ETAL CHEESE-WINDING APPARATUS 5 Sheets-Sheet 1 Filed Feb. 8, 1940 E-KINSELLA R-GPRITCHHRD V NTDRS Dec 16, 1941. v E. KINSELLA EI'AL 2 1 v CHEESE-WINDING APPARATUS" I I Filed Feb. 8; 1940 5 Sheets-Sheet 2 E-K INS ELLA R1,. PRITCHRRD I mvsu rons Dec. 16, 1941.

E. KINSELLA ETAL CHEESE-WINDING APPARATUS Filed Feb. 8, 1940 5 Sheets-Sheet 3 E-KINS ELLA a-ammrwakn AYI'ORNEYS E. KINSELLA VEIAL CHEESE-WINDING APPARATUS Filed Feb. 8, 1940 '5 Sheets-Sheet 4 L, ATIMl Ki Dec. 16. 1943. E. KINSELLA ETAL CHEESE-WINDING APPARATUS Filed Feb. 8, 1940 5 Shets-Sheet 5 EKWSELLA TH AR MNDITDRS Patented Dec. 16,1941

Edward Kinseila and Spondon, near Richard George Pritchard, Derby, Englan d, assignors to- Ceianeee Corporation of America, a corporation of Delaware Application February 8, 1840,8erial No. 317,924 r In Great Britain March as, 1 939 v 16 Claims. 242-355) :This invention" relates to cheese-winding apparatus in which a completed package is automati-' cally swung out of winding position and replaced by an empty package support to which the thread is transferred.

The apparatus according to the invention is particularly suitable for the winding of threads of artificial filaments continuously with their production, since not only does it provide for the continuous winding of the thread during the'substitution of an empty support for a completed package, but reduces any tendency to snatching of the thread, such as might interfere with the continuity of production of the thread.

According to the invention, a pair of winding spindles protrude from opposite sides of a trunnion, the spindle axes lying on opposite sides of the trunnion axis, and means are provided to position, one of the spindles alongside a traverse guide by which thread is led to a package support on that spindle, theother spindle meanwhile package can be removed and replaced by an empty support. when a package is completed, the trunnion is caused to rotate, the offset posion theempty support, ,and is re-set when winds ing is completed on the support and the support is brought to rest. At the time of transferring Y the thread to the empty support, both full and lying in a position from which the completed 1 tion of the winding spindle with respect to the trunnion axis ensuring that the threadstill pro- ,ceedin'g from the traverse guide to the package does not fall over the end of the package, but remains in contact with its surface, so that winding still proceeds until the thread engages a fixed thread guide, which controls the feeding of the thread to the package during the remainder of the rotation.

The traverse guide is arranged to move outwards as the diameter of the cheese increases and it is convenient to return the guide to its innermost position soon after the trunnion begins to be moved, this returnof the guide facilitating the engagement of the thread with the fixed guide by which the path of the thread is controlled during the remainder of the trunnion movement. Suitable guides are provided on the trunnion to lead, the thread into proximity to the a position and suitable, means, such as notches on empty support as the latter approaches winding the carrier for the package support, are provided to engage the thread to the empty support while breaking it from the completed package, the traverse guide remaining threaded.

The spindles are preferably driven by gearing- .that continuously reduces the angular speed of the spindles and thereby maintains the peripheral speed of the package constant. This gearing begins to operate as soon as winding begins emptysupports are driven at the same peripheral speed to enable the transfer to "take place smoothly.-

The thread remaining in the traverse guide, the substitution of an empty support for a completed package and the transfer of the thread to the empty support are eflected simply by the rotation of the trunnion carrying the winding spindles. Except, therefore, that the spindles rotate and the traverse the operation is completed without the use of moving parts to control the thread.

Picking up of the yarn by the notches on the carrier for the empty 'supmW-throws tension on the yarn between the notches and the completed package, so that the yarnbreaks in this length, and the yarn proceeding to the empty support is permitted to be taken up smoothly by the support. In this way snatching of the yarn such as might cause a break between the winding device and the Jet is avoided.

The invention will now be described in greater detail with reference to the accompanying draw ings, in which- Fig. l is a diagrammatic front elevation of the winding mechanism applied to a dry-spinning apparatus for the production of threads of artificial filaments;

on the line 22 of Fig. 1; Fig. 3 is a detail of Fig. 2 to al'arger scale; 1 Fig. 4 is a part-section of a gear-box shown 11 Fig.

Fig;

Fig. 2 is a diagrammatic side elevation taken 1 6; 5 is adetail of the drive to the gear-box "shownin Fig. 4;

shaftfor the, winding mechanism and dry-spinnins apparatus;

Fig. 8 is a part-sectional on the line 8-8 of Fig. 8;

Fig. 9 is a plan view of the left-hand side of Figs. 19 and ll illustrate the transfer of thread from a. completed package to an empty support;

Fig. 12 shows the means'for bringing a comside-elevation taken pleted package out of winding position:

Fig; 13 shows in part-section the driving con-. nections to the winding splndl Fig. 11 is a section along a winding spindle;

uide continues its motion,

. protrude, the spindles being parallel to each other and lying respectively above and below the trunnion axis (see Figs. 2, 9, and 11) The spindles 3 comprise shafts 4' bearing helical gears 5 meshing with-gears 6 on horizontal shafts I running lengthwise of the casing I (Figs. 8- and 13) Alternatively the spindles 3 may be connected to the shafts I by bevel gears 6, as shown in Fig. 9 and Fig. 14.

The casing l extends along any desired numgages a circular shoulder 2| on the carrier supthen'round the next, l9, being engaged by guide rods 26 secured near these comers (Fig 11). As the spindle with the empty support reaches winding position, the thread, which continues to be engaged by the still moving traverse guide l2, en-

port. This shoulder is notched (see 22), and the thread entering one of the notches is carried against a fixed pin 23 near theshoulder and is increasingly tensioned until it breaks near the inner end of the fixed guide, l3 associated with the completed package. At the same time winding commences on the empty support l6 and-the tail of thread extending from the traverse guide to the point where it was broken is also wound on to the end of the support to serve as a tail that may be tied to the head of another package in a creel.

her of spinning cells, provision for three cells C, each producing two threads, being shown in Figs.

1 and 6, and provides a pair of spindles 3 for each thread produced in the cells. With the thread 9 delivered downwardly'to one side of the cas ing I, the carrier-spindle 3 bearing the support III for that thread lies below.the level X-X of the trunnion axis (Fig. 11) and the casing is arranged to rotate clockwise so as to carry that spindle downwardly, i. e. further below the level X-X towards a dofllng position, at the same time bringing the other spindle containing an empty support it upwardly and over the trunnion axis into winding position.

Alongside the winding position is mounted a traverse mechanism (Fig. 8) comprising a guide [2 having a stroke appropriate to the length of cheese to be wound," the guide, moreover, being capable of movement away from the spindle as the cheese increases in size, as .will be described later. Extending from the casing i is a fixed guide l3 with its inner end "spaced from the winding spindle by an amount slightly in excess of the full radius of the cheese, the guide then inclining upwardly from this point, so that as the spindle is'carried downwardly by rotation of the trumiion, the guide is approximately horizontal when the rotation has carried its. inner end 14 slightly below the line of operation of the traverse guide l2 (see FigrlO).

One side of the fixed guide' carries "hooks i5, i6 facing each other (Fig. 9), the thread 3 beingcarried between the hooks when the casing rotates and when the traverse guide I2 is moved near the commencement of the trunnion movement, as will be described later. In the interval before the thread becomes engaged by thev fixed guide, the offset positionof the winding spindle 3 with respect to theaxis of the casing l ensures that the field of traverse of the thread remains within the length of the package. Thereafter, notwithstanding the continued traversing ofthe guide, the fixed guide l3 continues to direct the thread to the package and prevents any likelihood of the thread falling over the inner endll of the package (Fig. 10), the hook i5 at the inner end of the guide l3 extending sufllciently from the casing to prevent the thread from reaching the inner end of the: cheese. during the rotation of the trunnion. The last turns of yarn build up as a slight ridge near the inner end of the cheese, which facilitates finding the yarn end 'in subsequent use of the cheese.

all the traverse mechanisms. A clutch 30, operated by a lever 3|, a link 32, and an eccentric 33 from a hand-lever 34 enables any individual traverse guide I 2 to be brought to rest.

The traverse rod 24 is carried in a frame 35 pivoted on a bearing 36 co-axial with the shaft 21, so that the guide (2 may be moved towards and away from the axis of its package spindle 3 without interfering with the driving of the guide [2 by the, cam 26. A downward extension 31 of the frame 35 acts as a weight to cause the guide l2 to press against the surfaceof the package during winding. Adjustable weights 36 enable the pressure of the guide to be varied. The extension 31 carries a lug 39 by which the frame 35 is swung (simultaneously with the frames at the other spindles) under the control of a. slide rod 40 during the dofling and donning period,.so as to re-position the guide I2 for the winding of a new package. The'operating means for the slide rod 40 are described later.

At one end of the trunnion l is secured a worm-wheel 4| meshing with a worm 42 (Fig.

12) to enable the trunnion to be turned by operation of a hand-wheel 43 fixed to the worm shaft 44. A spring plunger 45 normally holds the trunnion locked with one set of spindles 3 in winding position, and has to be released manually to permit the trumiion to be turned. When a halfturn has been made, the plunger snaps back into locking position.

Rotation of the trunnion does not interrupt the drive to the spindles 3. As shown in Fig. 13, the spindle-driving shafts protrude from the trunnion casing'into a casing 46 rotatable with the trunnion; and co-axial with it. A central shaft 41 extends from the casing 46 to carry a 6), the output shafts 55, 56 of which are provided with sprockets 51, 58. The input shafts 53,

'60 of the gear-boxes are provided with sprockets 6|, 62 chain-driven from sprockets 63, 64 on a clutch shaft 65 to a sprocket 66 on which the main drive is supplied from any suitable source of power (not shown). I

Two clutches 61, 63 on the-shaft 55 (Fig. 7) are operated independently of each other by forks 63 on shafts 10 by means of hand-levers 'II o! the gear boxes 00,

' is taking place. tion simultaneously in the transfer period, as is 'I'he'shaft 14 carries. a sprocket shaft 14.

(Figs. 2 6). The clutches enable one or other to be in operation to drive the one set of spindles 0 at which winding Both gear-boxes are in operaexplained later.

Therate at which the clutch shaft 00 is driven determine the rate at whichthre'ad is delivered from the spinning machine, a procket I2 (Figs.

1 and 6) on the shaft 00 driving a sprocket II-on a shaft I0 carrying awaste-roller that rotates I with a peripheral speed equal to the rate at which the thread 9 late be wound at the spindles 0.

I0 driving a sprocket II on a shaft I8 that serves to drive the pumps of the" spinning machine and the control for the infinitely variable gear-boxes 03, 00.

The pumps I9 are driven by a shaft 00 having a sprocketal driven from a sprocket 02 on a shaft 83 parallel to the shaft I0. Interchangeable gears 86, 00 on the shafts i8, 88 are connected by an idler gear 80 on a banjo-plate 01 (Fig. to enable the pump-shaft 00 to be driven at any desired rate from the waste-roller The shaft 83 carries a cam 00 by which a ratchet-wheel 80' is driven, through a lever 00, link SI", lever 02, and pawl 00 (Fig.5). 0n the shaft 00 of the wheel 00 is an eccentric portion 00 on which a pawl 80 is carried to drive a ratchet wheel 91 slowly'abouta shaft 00. On stub axles 99 carried by the wheel 01 are carried pinions I00, I0! meshing with pinions I02, ills (Fig. 4), the'one pinion I02 being secured to the shaft 88 and the other pinion I08 beingheld to the. gearbox IM. The ratios of the pairs of pinions I00, I02 and IN, 03 differ slightly, with the result that the drive from the wheel 01 to the shaft-08 through the epicyclic train formed by the pinions effects a considerable speed reductiomthe timing being adjusted so that shai't 88 makes one half-revolution in the time required to complete a package.

The cam I00 has the profile shown in'Flg. 3. One half iflt of the cam is semicircular; the other half it! has a steady lift ending in a sudden drop I08. Two follower levers I09, IIO are mounted on pivots III so as to beengaged by diametrically opposite points of the cam I00. Chains H2, guided by sprockets H0, connect the briefly described:

' The gear-box a cam I00 carried by the 6). The wedges have slots IIB'to embrace the control spindles III of the gear-boxes and thus permit the wedges to lie between a head. H8 on each spindle ill and a head 0 on a control sleeve I20 surrounding the spindle III. The wedging action resulting froni--an upward pull of a chain II2 separates the heads H0, H8 to bring about the well-knownoperation of the expansible pulleys inside the gear box. Springs I2I returnthe wedges-to their lowest positions when'the follower levers I00, I" reach the sudden drop ME in the cam I00. It is to be noted that while one of the levers, its-wed8e H0, the other lever is riding on the semicircular portion I00 of the cam and its wedge remains stationary.

The drive to the traverse-box shaft 20 is taken from the clutch shaft 00 by two chain sprockets I22 driving two sprockets I22, 'I2lf'of slightly different size (Fig. 18). The sprocket I20 is rotatableon a member I20 secured to the shaft 20. The. sprocket I20 is rotatable on the shaft l00, H0 is operating about its pivot 00 as the I2! is carried I20 connected at their end I22 and at their end I00 to her I20 (1 1g. 18). A cam follower bya pair oi' levers I20 to the sprocket the member I20.

The member I20 is dragged round by the levers I20 as the sprocket I20 is driven, but, because the cam I20 is driven by the sprocket I20 at a slightly different speed from that of the sprocket I20, the cam operates the levers I20 to increase and decrease by a. smallamount the drag on the member I20. The 7 I20 is secured, is thus given a slight irregularity of rotation, which, being transmitted by the shaft to the traverse mechanisms, serves to break 7 up "any tendency to ribboning up of the threads on the cheeses.

' The operation of the mechanism will now be.

With the clutchshaft such that the spinning pumps I0 and the waste roller" eflect the desired linear rate of production of artificial thread, thedrive to the cam I00 is adjusted to bring about one half-revolution of the cam the desired 0 occupies the position at the rear of the trunnion I, i. e. substantially below the spinning cells. 00*0r 04 serving to; drive this set of spindles is setin motion'by'floperating the appropriate clutch 01 or 00 by one of the levers Ii. At this time, the cam follower I00 or M0 for this gear-box has 'just leftthe semi-circular half I00 of the cam-lti-ior the half I0'I having the steady lift, and the box is therefore serving to drive the spindles 3 at their highest angular speed, so that the empty supports I0 are running at the same peripheral speed as the waste roller 10. J

The artificial threads 0 are being wound on the waste roller 10, and each thread is broken from the waste [roller and transferred to its winding spindle 8 and threaded in its guide 62.- Winding then continues on the supports it on in the building the spindles 0, the peripheral speed of the package being maintained constant by steady diminution in the as the lift of the speed of the gear the profile of the compensate for the usual slight departure from uniform change of rate of operation of an infinitely variable gear. This means that the lift is not quite a true spiral, but is slightly modifledby an amount that cannot be shown on the scale of the present drawings-to give the necessary correction.)

cam' 800 modifies the output box. (It should be noted that During winding, the traverse frame 80 swings A guide I2 is pushed away from the axis of the spindle I by the growing body of yarn. When reaches the desired diameter-whlch may be determined on a time basis or by counting some number of revolutions of the waste roller shaft Ill-the plunger 80 is released and the handwheel 42 is turned to rock the trunnion I about its axis until the plunger is re-engaged. This brings the loaded spindle 2 from the position shown in Fig. 8, through the position shown in Fig. 10, to the position shown in Fig. 11.

The guide I2 continues to traverse but is brought clear of the of the trunnion movement, by the following means: I

At the left-hand end of the trunnion and coaxial with it is a sprocket Ill driving a further shaft 20, to which the member driven at aspeed in the time that it will take to make size of package. One set of spindles angular speed of the spindles lift III'I must be such as to the cheese-like package package'at the beginning sprocket I30 of half the size. The sprocket I30 is carried by a drum-cam I32, which therefore makes a full revolution during the half-revolution of the trunnion. During the period inwhich the cam I32 is stationary, a cam follower pin I33 projecting from the end of the traverse control rod 40 moves from position I to position 11 crosswise of the cam (Fig. 16). When the cam begins to turn, the nose I34 pushes the pin I33-to position III ahd thus pulls the rod 40 to the left (Fig. 6). The engagement of the collars I36 on the rod 30 with the lugs '39 withdraws all the guides I2 away from the surfaces of their packages. By the time the cam I32 has brought the pin I33 to the position IV in the cam groove I35, the package has swung below the level of the guide I2 and the guide can be returned to its innermost position nearer the spindle 3 by the pin I33 moving to position V. The remainder of the cam groove is purely circumferential, so that the pin I33 returns to position I without the axes of said spindles lying'on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engaged by one of said fixed guides so that said thread may continue to be guided by said fixed guide to the sun affecting the position of the guide I2 in relation to the spindle 3.

During the early part ofthe swinging movement of the loaded spindle, the thread 9 is caused by the return of the guide I2. to its innermost position to engage the fixed guide I3 and is thereby prevented from falling over the innermost end of the package, being assisted in this respect by the offset position of the spindle. When the empty spindle reaches winding position (Fig. 11), the. thread still being wound on the loaded package is engaged by the notches 22, which secure the thread to the spindle and break the length extending between the two spindles.

Just before the trunnion is rotated, the clutch handle II for the 'drive to the empty spindles is operated to set the spindles in motion, the corresponding gear-box 53 (or 54) being at this time set by the cam I05 to drive the spindles 3 at the maximum angular speed so as to'give them a peripheral winding speed equal to that of the nearly loaded spindles, Thus, at the time the empty spindles reach winding position they are moving at the correct speed for receiving the threads 9 without snatch. a

After the trunnion has been rotated, the other and replaced trunnion casing having at least one trunnion extending from an end thereof, 'a pair of winding face of said cheese during the remainder of the rotation of said casing.

2. Cheese-winding apparatus comprising a trunnion casing having-at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing, a traverse guide movable alongside one; of said spindles to determine the length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese increases in size, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese,-means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverse guide, and means adapted to withdraw said traverse guide from the surface of said cheese and to return it towards the axis of the spindle, the axes of said spindles lying onopposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes tending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing,- a traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle, said traverse clutch lever is operated to stop the loaded spindles,

spindles protruding from opposite sides of said casing, a traverse guide movable alongside one of said spindles to determine the length of a 'cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese increases in size, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese, and means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverse'guide,

guide being also movable away from said spindle as said cheese increases in size, guides fixed to said casing, each near one of said spindles and spaced therefrom, by an amount slightly exceeding the full radius of the cheese, means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverseguide, and means controlled by the rotation of said casing to withdraw said traverse guide from the surface of the cheese at the beginning of said rotation and to return said traverse guide towards the axis of the spindle at the end of said rotation, the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engagedby one of said fixed guides so that said thread may continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing. i

4. Cheese-winding apparatus comprising 9. trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles" protruding from opposite sides of said casing, a traverse guide movable alongside one as said cheese increases "in. size. guides fixed to said casing each'near one or said spindles continue to be guided by said of traverse of the thread'being and spaced thereiromby an amount slightly exceedaacaiai ing the full radius of the cheese, means ior rotating said casing about its axis to remove one spindle from said traverse guide and to bring a notched member on each spindle, and guides amount slightly exceedingth'e 'iull rad.us ofthe cheese. and means ior rotating said casing about its axis to remove one sp ndle irom' said traverse guide and to bring the other "59111018 alongside said traverse guide, the axes of said spindles lying the other spindle alongside said traverse guide,

on said casing for bringing a thread being wound on one spindle into contact with said notched member on the other spindle as the rotation of the casing brings the latter spindle alongside the traverse guide, said notches being adapted, on contact with said thread, tension to the length 01 thread between said spindles, the axes of said spindles lying on opposite sides of the trunion axis sothat the field oi traverse. of the thread being wound remains within the length of the cheeseuntil the rotation of said casing causes said thread to be engaged by said thread may one of said fixed guides so that fixed guide to the surface of said cheese during the rotation of said casing.

5. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion ex-t drive effective to apply a breaking.

the remainder of l as said cheese tending froman end thereof, a pair of winding 1 spindles protruding from opposite sides of said casing, a traverse guidemovable alongside one of said spindlesto determine the length or a cheese to be wound on said spindle, said traverse guide being also movable away from said spin dle as said cheese increases in size, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceed: ing the full radius of the cheese, means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverse guide,

means controlled by the rotation of said casing and to return said traverse guide towards the axis of the spindle at the end of said rotation a notched member on each spindle, and guides on said casing for" bringing a thread being wound on one spindle into contact with said notched member on the other spindle as the rotation of the casing brings the latter spindle alongside the .to withdraw said traverse guide fromthe surface: between 8am p s,

of the cheese at the beginning of said rotation thread to be engaged said fixed guide to the ing the remainder of tion of said casingcauses'said thread to be engaged' by 0118\Of said fixed guides so that said' thread may'continue tobe guided by said fixed guide'to the surface or said cheese during the remainder of the rotation of. said casing.

6. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from o'pposite sides of said casin a traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle; said traverse uide being alsomovable away from said spindle as said cheese increases in size, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for rendering the drive efiective through the gear box driving said spindle, guides fixed to said casing, each near one 01' said spindles and spaced therefrom by an trunnion casing'having at least one trunnion ex- .tending from an end thereof, a pair of winding spindles protruding'from opposite sides or said casing, a traverse guide movable'alongside one or said spindles to determinethe length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle increases in sirle, two infinitely variable gearboxes for driving respectively said winding spindles, clutch means for rendering the spindle, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese, its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverse ,guide, a notched spindle, and guides on said casing for b a thread being wound on one spindle into contact withlsaid notched member on the other spindle as the rotation of the casing brings the latter spindle alongside the, traverse guide, said notches being adapted, on contact with said thread, to apply a breaking tension to the length oi thread the axes of said spindles lying on opposite sides or the trunnion'axis so i that the field of traverse of the thread being wound remains within the length of the cheese" until the rotation bi saidcasing causes said by one or saidfixed guides so that said thread may continue to be guided by surface ofsaid cheese durthe rotation of' said casing. gapparatus comprising a length of a cheese to be wound on said spindle, said traverse from said spindle guide being also movable'away as said cheese increasesin 'size,- two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for rendering the drive effective through the gear box driving said i spindle, cam 'meansi'or reducing the output speed spindle alongside said traverse guide, the axes or said spindleslying on opposite sides of the trunnion axis so that the fieldot traverse of the thread being wound remainswithin the length or the cheese with the rotation of said casing the cheese until the through the gear box driving said means for rotating said casing about member on each causes said thread to be engaged by one of said fixed guides so that said thread may continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing.

9. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides-of said casing, a traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese increases .in size, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for rendering the drive effective through the gear box driving said spindle, a single cam controlling the speed of the operative gear box to reduce the output speed of said gear box as the diameter of the cheese increases so as to'maintain constant the peripheral speed of the cheese, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese, and means for rotating said casing about its axis to remove one spindle from saidtraverse guide and to bring the other spindle alongside said traverse guide, the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casin causes said thread to be engaged by one of said fixed guides so that said thread may continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing.

10. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing, a. traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese increases in size, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for rendering the drive effective through the gear box driving said spindle, cam means for reducing the output speed of said gear box as the diameter of the cheese increases so as to maintain constant the peripheral speed of the cheese, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese, means for rotating said casing about its axis to remove one spindle from said traverse guide, a notched member on each spindle, and guides on said casing for bringing a thread being wound on one spindle into contact with said notched member on the other spindle as the rotation of the casing brings the latter spindle alongside the traverse guide, said notches being adapted, on contact with said thread, -to apply a breaking tension to the length of thread between said spindles. the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engaged by one of said fixed guides so that said thread may continue tobe guided by said fixed guide to the surface of said cheese during the remainder of'the rotation of said casing, 1

11. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing, a traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle,said traverse guide being also movable away from said spindle as said cheese increases in side, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for'rendering the v drive effective through the gear box driving said spindle, a single cam controlling the speed of the operative gear box to reduce the output speed of said gear box as the diameter of the cheese increases so as to maintain constant the peripheral speedof the cheese, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightly exceeding the full radius of the cheese, means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongside said traverse guide, a notched member on each spindle, and guides on said casing for bringing a thread being wound on one spindle into contact with said notched member on the other notches being adapted, on; contact with said thread, to apply a breaking tension to the length of thread between said spindles, the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engaged by one of said fixed guides so that "said thread may continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing. l I

12. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing, a traverse guide movable alongside one of said spindles to determine the length of a cheese; to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese increases in size; two infinitely; I

variable gear boxes for driving respectively said winding spindles, clutch means for rendering the drive effective through the gear box driving said spindle, a single cam controlling the speed of the operative gear box to reduce the output speed of said gear box as'the diameter of the cheese increases so as to maintain constant the peripheral'speed of the cheese, ratchet gearing for driving said cam, a re-setting handle for rotatingsaid cam independently of the drive, guides fixed to said casing, each near one of said spindles and spaced therefrom by'an amount slightly exceeding the full radius of the cheese, and means for rotating said casing about its axis to remove one spindle from said traverse guide and to bring the other spindle alongsidesaid traverse guide, the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engaged by one of said fixed guides so that said threadmay continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing. I

13. Cheese-winding apparatus comprising a 2,266,121 trunnion casing having at least one trunnion ex- 1 spindle, a single cam controlling the speed of the operative gear box to reduce the output speed of said gear box as the diameter of the cheese increases so as to maintain constant the peripheral speed of the cheese, ratchet gearing for driving said cam, a re-setting handle for rotating said cam independently of the drive, guides fixed to said casing, each near one of said spindles and 'spaced therefrom by an amount slightly exceeding the full radius of the cheese, means for rotating .said casing about its axis to remove one said notches being adapted, on contact, with said thread, to apply a breaking, tension to, the length of thread between said spindles, the axes of said spindles lying on opposite sides of the trunnion axis so that the field oi. traverse of the thread,

being wound remains within .the length oi the cheese until the rotation of said casing causes said thread to be engagedby one of said fixed guides so that saidthread may continue to be guided by said fixed guide to the surface of said cheese during the remainder of the rotation of said casing.

14. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an endthereof, a pair of winding spindles protruding fromppposite sides of said casing, a traverse guide movable alongside one of said spindles to determine the length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as, said cheese increases in size, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for renderingthe drive effective through the gear box driving said spindle, "cam means for reducing the output speed of said gear box as the diameter of the cheese increases so as to maintain constant the peripheral speed of the cheese, guides fixed to said casing, each near one of said spindles and spaced therefrom by an amount slightlyexceeding the full radius of the cheese, means for rotating said casing about its axis to remove one spindle from said traverse guide, a notched member on each spindle, guides on said casing for bringing a thread being wound on one spindle into contact with said notched member on the other spindle as the rotation of the casing brings the latter spindle alongside the,traverse guide, and means controlledby the rotation of said 'casingto withdraw said traverse guide from the surface of the cheese at the beginning of said rota-- tion and to return said traverse guide towards the axis oithe spindle at the end of said rotation,

said notches being adapted, on contact with said thread, to apply'a breaking tension to the length of thread between said spindles, the, axes of said spindles lying on opposite sides 01' the trun- 75 means for rotatin nion axis so that the field oi traverse of the thread being wound remains within the length of the theese until'the rotation of said casing causes said thread to be. engaged by one 01 said fixed '5 guides so that said thread may continue to be guided by said fixed guide to the surface 01 said cheese during the remainder oi the rotation of said' casing.

15. Cheese-winding apparatus comprising a 10 trunnioncasing having at least one trunnion extending'from an end thereof, a pair of winding spindles protruding from'opposite sides of said casing, a traverse guide movable alongside one of saidspindles to determine the length of 'a cheese to be wound on said spindle, said traverse guide being also movable away from saidspindle as'said cheeseincreases in size, two infinitely variable gearboxes for driving respectively said windingspindles, clutch means for rendering the drive effective through the gear box driving said spindle, a single cam controlling the speed of I the operative gear box to reduce the output speed of said gearbox as the diameter oi. the cheese increases so as to maintain constant the peripheral speed of the cheese, guides fixed to said casing, each nearone of said spindles and spaced .therefrom by an amount slightly exceeding the full radius of the cheese, means forrotating said 1 casing about/ its axis to remove one spindle from said traverse guide andrto bring the other spindle alongside said traverse guide, a notched memberon each spindle, guides on said casing 'ior bringing a. thread being wound on one spindle into contact with said notched member on the other spindle as the rotation of. the casing brings the latter spindle alongside the traverse guide, and means controlled by the rotation of said casingto withdraw said traverse guide fromthe surface of the cheese at the beginning of said 40 rotation and to return said traverse guide towards the axis of the spindle at the end of said ro-- tation, said'notches being adapted, on contact with said thread, to apply a breaking tension to the length of thread between said spindles, the axes of said spindles lying on opposite sides of the trunnion axis so that the field of traverse of the thread being wound remains within the length of the cheese until the rotation of said casing causes said thread to be engaged by one .of said fixed guides so that said thread may continue to be guided by said fixed guide to the surface of said cheeseduring the remainder of said casing.

16. Cheese-winding apparatus comprising a trunnion casing having at least one trunnion extending from an end thereof, a pair of winding spindles protruding from opposite sides of said casing, a traverse guide movable alongside one of said spindles to determine-the length of a cheese to be wound on said spindle, said traverse guide being also movable away from said spindle as said cheese'increases in size, two infinitely variable gear boxes for driving respectively said winding spindles, clutch means for rendering the- 2 drive efiective through the gear box driving said spindlaa single cam controllinggthe speed 01 the operative gear box to reduce the output speed of said gear box as the diameter of the cheese increases so as to maintain constanttheperiph eral speed of the cheese, ratchet-gearing for driving said cam, a re-setting handle for rotating said cam independently of the drive, guides fixed to said casing, each near one of said spindles ;andspaced therefrom by an amount slightly exceeding the full radius of the cheese,

or the rotation 8 said casing about its axis to remove one spindle from said traverse guide;

a notched member on each spindle; guides on said casing for bringing athread being wound on one spindle into contact with said notched member on the other spindle as the rotation 01! th casing brings the latter spindle alongside the traverse guide, and means controlled by the rotation of said casing to withdraw said traverse guide from the surface of the cheese at the beginning of said rotation and to return said traverse guide towards the axis of the spindle at the endof saidrotation, said notches being adapted, on contact with said thread, to apply a

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