US2943806A - Paper machinery - Google Patents

Description

I aka;-

July 5, 1960 Filed July 5, 1956 R. w. PHELPS 2,943,806

PAPER MACHINERY 6 Sheets-Sheet 1 INVENTOR.

Y RICHARD W. PHELPS B WW r124 ATTORNEYS July 5, 1960 R. w. PHELPS v 2,943,806

PAPER MACHINERY Filed July 5, 1956 6 Sheets-Sheet 2 52/ F FIG-3 IN V EN TOR.

RICHARD W. PHELPS BY ATTORNEYS R. W. PHELPS PAPER MACHINERY July 5, 1960 Filed July 5, 1956 6 Sheets-Sheet 3 INVENTOR.

RICHARD W. PHELPS MQ ATTOR N EYS July 5, 1960 R. w. PHELPS 2,943,806

PAPER MACHINERY Filed July 5, 1956 6 Sheets-Sheet 4 FIG-1O IN VEN TOR. RICHARD W. PHELPS Y ATTORNEYS y 1950 R. w. PHELPS 2,943,806

PAPER MACHINERY Filed July 5, 1956 6 Sheets-$heet 5.

FIG-13 66 Bz I\ 1oz 1oz a 0 Il I WM 101 sv-z INVENTOR.

RICHARD W. PHELPS AT TOR NEYS w,wimq

Y July 5, 1960 R. w. PHELPS 2,943,306

PAPER MACHINERY Filed July 5, 1956 s Sheets-Shet a PSA FIG-14 MAIN POWER SOURCE CONTROL ROLL CHANGE 26 cuT L84 INVENTOR.

. Y RICHARD w. PHELPS ATTORNEYS operator should by mistake attempt such improper operation.

will'fbe apparent from thefollowing-description, the: 'companyingQdrawings and the. appended; claims -W ]t l oftFia, l I

Fig. 3 is a from. view looking from right totleftin 2,943,806 PAPER MACHINERY Richard W. Phelps, Fulton, N.Y., assignor to The Black- 'glawson Company, Hamilton, Ohio, a corporation of bio a Filed July 5, 19-56, Ser. No. 595,903

' scams (l'.242-56)- a winder in which the successive operations of the several parts of the apparatus during roll changing establishes that such. operations will be in. thc proper sequence and also prevents operation of the apparatus in animproper sequence either as the result of anaccident or even if the It is also, an object ofthe invention to. provide auxiliary equipment for cmnbination with an existing non-automatic, winderwhich 'will convertwsuc'h winder to auto-"- matic' operation in the transferring of the web from a fully wound rollto a new core; r

Additional objects-and. advantages jo f the invent-ion I Inltlle drawings-- Fig. l is a somewhat diagrammaticand. partly broken side View offacontinuous winder constructed in accord;-

ance with the. invention'and looking towardthe drive. side thereof, 7 a a a I ,Fig- 2 isa similarly diagrammatic top-viewl of, the

Fig. ,l. andillustrating auxiliary equipment in accordance with the inv'ention of the type employed inv Fig. l t'o establish automatic operation ofgthe winder;

Fig. 418a detail-side view looklngfrom ten torigh inFig. 3; I: i I

Fig, 5 is a-viewfsimilar to Fig. .4' looking from rightto left in Fig. 3; I V I ,Pig. 6 7 an enlarged fragmentary view taken asindicated. by the line 66 of Fig; 7 and showingcertainlof the. controls for the winder; 1 I v Fig. 7 is a fragmentary view looking from" right to left rung-6; w

t Fig. 8 is an enlarged fragmentary view showing au- ,otherof the controls, this view looking from left; to right 2 Fig. 14; is a wiring diagram.

Referring to the drawings, which illustrate preferred .embodiments'of the invention, the end stands 20 and 2.1 V

'nzlrive 26. The reel isprovided with a pair of core spindlessil and 3-1 each adapted to carry a core 32 on which a roll 33 is to be, wound. Indexing of the reel controls the path of the webv 35 to successive cores 32 from suitable tension control means, shown vas a pair of pull rolls 36, for deliveringthe Web to the winder at apredetermined controlled speed, which is readily determined by the speed of the machine from which the web is supplied to the winder.

Each of these spindles 30 and 31 is provided with its individually controlled friction clutch 4t and 41 respectively carried by an additional. reel arm 42, and thedrivingmembers of, both clutches are connected by chain drives 43 with a sleeve 44 free of shaft 24. This sleeve 44 is driven through a chain or belt drive 45 by a constant horsepower source for continuously driving sleeve 44 at a rate decreasing in responseto increasing torque, andwhich is represented in Fig. 2 by amotor 46. In operation, this drive is. correlated by conventional electric control means with the speed of the web to' maintain sub stantially constanttension in the web by driving successive winding rolls. at. an angular speed which decreases at a proper constant rate to maintain an effectively constant peripheral speed for the roll. I I

. 'Thet winder as-described up'to this point requires manuali-contro l'during rol-l changing, a suitable system for uchocontrol being shown in my copending application Serial No.- 513,369, filed June 6, 1955 and issued as Patent No. 2,828,926" on April ;l, 1958 to the same assignee'as this: application, The present invention pro- 1 vides auxiliary equipment designed forcombination with such non-automatic winder which-will convertthewindcr to automatic. operation accompanied by adequate assurancerfor aproper automatic sequence of operation during roll; changing together with maximum assurance against been initiated. i r Referring particularly to Figs; 3-5, theauxiliary'uni-t h includes a double end stand 59 at the drive side of the winder and a single end stand 51 at the control side,

5 The end'istand 5t) carries an idler pulley 52 and a drive pulley 53 cooperating with a second idler 54to support the auxiliary drive, represented by -a belt 55, which is 'utilizedtoaccelerate the successive spindles to proper speed before and during ro-ll change; The idler 54 is carried; by a'bracket 56 which may be. a part ofI-the -s tand.'50 or separately mounted on. the floor as shown. The drive pulley 53 is carried by shaft 57 mounted inthe end stand and driven by a drive motor: 58 through a'belt or chain drive 59.

intFig..9 and being taken approximately o n-the line -8-8 ofFig; 9; II .I I I I Fig. 9 is a view looking from right to left in Fig. 8; Figs. 10 and ll are additional fragmentary views illustratingfurther controls, theseviews being takenas; indicated by the lines 10--1tl-and;1l'11 respectively of -12; Fig. 12 is an enlarged elevational view looking-from left to right in Fig. 10 and from right to left' i n Fi'g. l'l

Fig. ISisan air circuit diagram; and s a a The auxiliary drive is adapted to be selectively connectedwith the spindles 30 and 31, and this is illustrated by means for bringing the belt selectively into driving engagement with one or the other of the pulleys and 61 mounted on the spindlesfiil and 31 respectively between the reel arms 22 andj 42 to provide a selective direct drive to either spindleindependentlyof the main power source 46; This-means includes tensioning means for belt 55 comprising apulley 62 mounted by'means of arms d3 on a pivot 6-4 in end stand 5%. The arms 63' are in turn 0 connected by a lever 6-5 with the piston rod of an air cylinder 66 mounted on the stand 5% and operable to movethepulley 62' into and out of tensioning relation I Patented July .5, 19760 Improper operation once the roll changing sequence has ' arms 74 and 75 is effected by a separate control.

with the belted end stands 50 and 51 are reversed in- Figs. 1 and 2 from-the-arrangement in Fig. 3, but this by a plurality of arms 71 secured to a rock shaft 73 which is in turn carried by a pair of arms 74 and 75 secured to a torque tube 77 free on a shaft 80 extending between the 'stands 50 and 51. An arm 81 extending from tube 77 is -connected to-the piston rod of an air cylinder 82 carried by a bracket 83 secured in fixed relation with the end stands as by mounting on the floor, and the arrangement is such that when pressure is applied to the lower end of the cylinder, the tube 77 will rock to move the arms 74' and 75 as shown in Figs. Sand 10 from their dotted line positions to the full line positions.

The cutting movement of the knife with respect to the A sprocket 85 on the shaft 73 is connected by a chain 86 to a sprocket 87 on the hub of an arm 88 free on shaft 80.

The arm 88 is in turn connected to the piston rod of an air cylinder 89 secured to bracket 83, and Fig. 5 shows how the application of pressure to the upper end of cylinder 38 will cause the knife arms 71 to swing in clockwise direction for cutting movement of the knife.

The end stands 56 and 51 also carry a pressure roll 9ll w'nich forms a pressure nip with the winding roll through which the web travels and also operates during roll changing to grip the web against the new core and thus cooperates with the knife to complete the desired 96 or-a portion of the end stand 51. The pressure supply to the cylinders 95 is normally maintainedthroughout the winding operation rather than selectively during roll changing, as indicated in the air circuit'diagram in Fig.

'13 by the manual control valve 99, which is connected with the main air supply lin'eltld'by an adjustable reducing valve 161 together with a pressure gauge 102.

The control arrangements for the other air-operated parts are also illustrated in Fig. 13. Thus the tensioning cylinder 66 for the belt 55 is controlled by a solenoid -tion with the end stands 50 and 51.

closed switch mounted on the knife pivot arm 75 and adapted to be opened by a cam 108 mounted on the hub of the knife operating arm 88.

Additional limit switches are shown as mounted on a bracket 110 secured to the floor or otherwise in fixed rela- Switches LS-3 and LS-4 are mounted on 'one sideof bracket 110 and are operated by cams 111 and 112 carried by the torque tube 77. Both of these switches are normally open and are adapted to be closed in the retracted and advanced positions of the knife pivot arms respectively. Switch LS-Z is a single-pole double-throw switch mounted on the other side of bracket 110 and operated by a cam 113 depending from the hub of the pressure roll arm 92.

The electric controls provided by the invention and the sequence of operation which they establish will be understood from the following description in conjunction with the wiring diagram in Fig. 14, in which the AC. power lines L-1 and L4 may be provided with a suitable disconnect switch (not shown). In the normal operation while a roll 33 is being wound, the reel arms will be generally in the reverse of the position shown in Fig. 1 to the extent that the winding roll 33 will be in engagement with the pressure roll 90. The circuits as a whole will be as shown in Fig. 14 with the exception that switch ns-s will be held closed because the knife pivot arms are retracted, and also one of the clutches 40 or 41 will be engaged by energization of its associated control relay. If it is assumed that clutch 40 is engaged, then the relay CLAR will be energized and locked in through limit switch LS-S and the normally closed push button switch 120. Since valve SV-4 is energized to engage clutch 40, pressure switch PSA will be open, and relay CLPR will therefore also be open.

The main power source 46 operates during winding at a constantly decreasing speed determined by its control circuits aspointed out above, and since such circuits are largely conventional they are indicated in Fig. 14 merely by the block diagram 125; Similarly the'details' of the circuits for the indexing motor 25 are not shown in greater detail than the indication of a reversing switch 122, which is operated selectively by the relays WP and WR to produce forward and reverse indexing movement of the reel arms respectively. Fig. 14 also indicates each valve SV-1 which is' energized in timed relation with the operations of the other parts of the winder during roll changing as described hereafter in connection'with the wiring diagram. Similarly the knife pivot cylinder 82 and the knife operating cylinder 89 are controlled by solenoid valves SV-Z and SV-S. The clutches 4t and 41 on the Winder spindles are also arranged for individual engagement and disengagement by means of solenoid valves SV-4 and SV-S respectively, and the pressure line to each of these clutches is also connected with one of a pair of pressure switches PSA and PSB connected in series erated by cams 165, 106 and 107 on the winder shaft 24,

the cam 195 having a pair of opposed high points while the cams 106 and 107 have single high points since the roll change occurs' twice for each complete revolution of the arms 22 and 23. Normally closed switch LS-l is of the single-pole double-throw variety, while switches LSA and LSB are normally open single-pole switches. Figs. 8 and 9 show switch LS5, which is a normally of these relays as operating a normally closed switch in the circuit to the other relay in order to prevent both of these relays from being energized at the same time.

In the above example, when the roll 33 is fully wound and it is desired to change to a new core, the roll change sequence is initiated by closing the push button switch 126. This completes an energizing circuit for relay SBR' through the normally closed manual switch and the back contacts 131 of relay SMR, and relay SBR locks itself in through its contacts 132. Closing of relay SBR completes an energizing circuit through its contacts 133 to the solenoid valve SV-l to effect tensioning of the belt 55. Similarly, closing of relay SBR will complete an energizing circuitto the indexing motor relay WF, this circuit running through switch LS-3, which is still held closed, the back contacts of switch LS-1, and the 'contacts134 of relay SBR.

This sequence of events causes the indexing motor 25 to move the reel in clockwise direction as viewed in Fig. 6 until the switches LSB and LS-l have been tripped by their respective cams, which will bring the reel. into the roll starting position shown in Fig. 1 wherein the empty core is engaged with the pressure roll 90. In this position, the pulley' 61- will be engaged with the belt 55 to bring the new core 33 up to web speed. The reel is stopped in this position by operation of switch LS4, which cuts off the circuit to relay WP and instead completes a circuit through the contacts 135 of relay SBR to the solenoid valve SV2.

Energizing of valve SV-2 causes the knife pivot arms sesame to move'into their fullline positions shown in Figs; 2 and 5', andthe accompanying movement of the camscar- I ried by-the torque tube'77 first opens sW-iteh-LS Sand -will remain complete aftc'rswitcli LS'B opens, -s'imilarly thencloses switch LS4'-in preparation for-operation of 7 cutting and-transferringthe web tothenewco're I This operation is completed by depressing the push button switch 140 to-energize valve SV-S', which causes the knife to' carry out its cutting stroke as shown in Fig 1 by u'tting thewe'band carrying the-cut l'eadingend around the new coretowards the nip'with the pressure roll 90.

When the knife approaches the limit of its cutting stroke, the-cam- IO'Son the knife-operating arm 88 opens switch LS-S, thus breaking the locking circuit for relay CLAR and causingclutch 40'to deenergize. The valve SV-3 remainsenergized" only so longas switch 140 is held closed, and as soonas this switch is released,*the knife-returns to its retractedposition and permits switch LS-5 to reclose without immediate ell ect; However, the deenergizingof' valve SV-4removed pressure from switch PSA and thus allowed this switch to close and thereby to complete an energizing circuit" for; relay CLP-R.

Closing ofrelay CLPR completes a circuit through its contacts to the main power source control circuits 125 signaling the completion of roll 33; severance ofweb, and transfer of the web to the core driven by belt 55. During the subsequent interval, the main power source represented by the motor 46' now disconnected from the web accelerates tobring its speed up to the rpm; necessary to match thespeed of the empty core which is being driven by the belt 55. The main power source control circuits include a signal means which is represented by the relay 145, effective to complete the energizing cir cuit fora relay SMR when thismatching speed condition is attained.

circuit for relay CLBR through its contacts 150 and switch LSB', which has been closed by cam 2107, and thereby completes-an energizing 'circuitfor valve 'SV-S to cause clutch 41 to engage. Closing of relay SMR will also close itscontacts, 151 in the circuitto relay CHAR, but this circuit will remain open during this: roll is removed, and this change is initiated simultaneously with engagement of the clutch by deenergizing relay SBR as a result of the opening of its holding circuit through the back contacts 131 of relay SMR. This deenergizes valve SV 1 to shift the tensioning pulley 62 to its retracted position, and the air flow to clutch 41 and the bleed off ofair from; cylinder 66 are readily regulated to provide a smooth transition of winding power from the auxiliary drive to the main winder power source. Opening of relay SBR will also 'deenergize valve SV-2 to cause the knife pivot arms 74 and 75 to return to their retractedposition, and the accompanyingmovement of 'the' cams on torque tube 77 will cause switch LS-4 to open and switch LS-3 to close,

This reestablishes normal winding conditions, which will continue until the layers of the web built up on the core-33 have increased to a thickness causing movement --of the pressure roll arms 91 and 92 sufiiciently to trip switch LS-Z. This completes an energizing circuit to relay WF to produce forward indexing movement of the reel until switch LS2 is reset, and this incremental build-up will continue so long as the winding'roll remains in engagement with the pressure roll 90. Switches LS-1' and LSB' will be reset by their operating cams 105 and 107. after the reel has indexed. an adequate distance the relay SMR will 'deener'gize'afterth-thicknessofthe. new roll has increased to such extent that the speed-of the main power source has decreased suhicientlyfrom its empty core speed to provide a suitable of this changed condition, as by opening the relay- 145; This returns the contacts of relay SMR to their normal positions in'preparation for-the'next roll change'.--

The indexing movements of the reel during the su sequent period of winding on the new roll will remain under the control-of switch LS#-2. until thenext roll change is initiated by operating switch 126; During the winding of this new roll, the full roll will be removed at theback of the winder and replaced by a new core in theusual way.

The-invention accordingly provides for accurate automatic" control of the movements of 'the several parts during roll changing, and at the same time it" retains for the operatorthe selection of the time forinitiating a roll change and the time for elfecting the actual web When relay SMR closes, it completes an energizing pletion' of the roll change.-

cylinder, andthe remaining steps of the roll changing operation will then be carried out automatically. In fact, evenif the operator should hold switch 140 closed longerthan necessary, this will not interfere with com- The remaining parts in the wiring diagram which have notas'yet been identified provide for manual control of the several steps in the roll changing'op'erat-ion ifsuch should be desired. Thus the switches ltill'and 161 provide for forward and reverse movement respectively of'the indexing of motor 25, and switch I30'pr'ovidesfor n ianual opening of relay SBR. Similarly manualswitch 7 energizing =ti -vely,'while switches 12l) an'd 165 provide for manual actuated opening of these clutch relays:

ofth'esemanual controls are used, the same interlocks are effective to prevent improper operation as whenthe 16-2'and'1l63 provide for selectivemanual the clutch relays CLAR and CLBR respec- Whenever any winder-is functioning under the automatic controlfas already 'described' I o While the forms of apparatus herein described? const-itute preferred embodiments of? the invention, it is to be understood that the inventionis not limitedlto'these preciseforins'of apparatus, and that changes may be made therein without departing from the scope ofthe invention which is defined in the appended claims;

What is claimedist 1 o l. Continuous; winding apparatuspfor -web material comprising a reel for simultaneouslysupporting a winding roll and a newcore, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to aroll starting position,

anauxiliary drive for driving said new, core in said.

starting position at a predetermined rotational speed,

means responsive to indexing of said new: core to'said operation of said last named means for disconnecting said winding roll from said main drive, means responsive-tooperation of said disconnecting means for causing with said main drive.

'BCCGIGI'atlOILOf said main driveto said predetermined rotational speed, means for sensing that the speed of said main drive has accelerated to said predetermined speed, and -meansresponsive to saidysensing means for simultaneously disconnecting said auxiliary drive from said new core and for effecting engagement of said core 2. Continuous windingapparatus for web material comprising a reel for simultaneously supporting a winding roll and a new core, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means responsive to indexing of said new core to said starting position for causing driving engagement of said core with said auxiliary drive, additional means responsive to indexing of said core. to said starting position for stopping said indexing drive, means operable only after operation of said additional responsive means for effecting cutting of said web and transfer of the cut leading end thereof to said core, means responsive to operation of said last named means for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for sensing that the speed of said main drive has accelerated to said predetermined rotational speed, and means responsive to said sensing means for simultaneously disconnecting said auxiliary drive from said new core and for eifecting engagement of said core with said main drive, and means responsive to the increasing thickness of the roll on said new core .for again actuating said indexing drive to advance said core from said starting position to a winding position.

3 Continuous winding apparatus for web material comprising a reel for simultaneously supporting a wind- .ing roll and a new core, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means, actuated by indexing of said new core to said starting position. for causing driving engagement of said core with said auxiliary drive, a knife support mounted for movement between retracted and advanced positions, a knife carried by said knife support for cutting movement with respect thereto, means responsive to indexing of said coretosaid starting position for shifting said knife support to said advanced position, means responsive to movement of said knife support to said advanced position for preventing further operation of said indexingrdrive, means operable only in said advanced position of said knife support for causing operation of said. knife to out said web and transfer the cut leading end thereof to said new core, means responsive to said operation of said knife for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for sensing that the speed of-said main drive has accelerated to said predetermined rotational speed, and means responsive tosaid sensing means for simultaneously disconnecting said auxiliary drive from said 'new core and 4. Continuous Winding apparatus for web materialcomprising a reel for simultaneously supporting a winding roll and anew core, a main drive for selectively driving said roll and core, an indexing drive, for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means actuated by indexing of said new core to said startingposition for' causing driving engagement of said core with said auxiliary drive, a pressure roll positioned to form a nip with said core at said starting position and to guide said web into said nip, a knife support mounted for movement between'retracted and advanced positions, a knife carried by said knife suppo'rt for cutting movement with respect thereto, means responsive to indexing of said core to said starting position for shifting said knife support to said advanced position, means responsive to movement of said knife support to said advanced position for preventing further operation of said indexing drive, means operable only in said advanced position of said knife support for causing operation of said knife to out said web and transfer the cut leading end thereof to said nip for winding on said new core, means responsive to said operation of said knife for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for sensing that the speed of said main drive has accelerated to said predetermined rotational speed, and means responsive to said sensing means for simultaneously disconnecting said auxiliary drive from said new core and effecting driving engagement of said core with said main drive and for shifting said knife support to said retracted position to re-set said means for preventing operation of said indexing drive, and means actuated by said pressure roll in response to movement thereof caused by the increasing thickness of the roll on said new core for causing said indexing drive to advance said core incrementally from said starting position to a winding position.

5. Auxiliary equipment for use in conjunction with winding apparatus for web material including a reel for simultaneously supporting a Winding roll and a new core and provided with a main drive for selectively driving said roll and core and an indexing drive for advancing said new, core to a roll starting position, comprising means forming a stand adapted to be mounted in predein said starting position, releasable means on said stand for tensioning said belt to drive saidcore at a predetermined rotational speed, a knife support mounted on said stand for movement between retracted and advanced positions, a knife carried by said knife support for cutting movement with respect thereto, means for shifting said knife support between retracted and advanced positions, means operable only in said advanced position of said support for causing operation of said knife in the direction to out said web and transfer the cut leading end thereof to said new core in said starting position, and means responsive to said cutting operation of said knife for disconnecting said winding roll from said main drive,

means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for sensing that the speed of said main drive has accelerated to said predetermined rotational speed, and means responsive to said sensing means for simultaneously releasing said drive belt from driving engagement with said core and for effecting driving engagement of said core with said main drive, and means for shifting said knife-support to said retracted position substantially simultaneously with the operation of said last named means.

6. Auxiliary equipment for use in conjunction with winding apparatus for Web material including and for simultaneously supporting a winding roll and a new core and provided with a main drive for selectively driving said roll and core and an indexing drive for advancing said new core to a roll starting position, comprising ting movement with respect thereto, means for shifting said knife support between retracted and advanced positions, means operable only in said advanced position of said support for causing operation of said knife in the direction to out said web and transfer the cut leading end thereof to said nip for winding on said new core, means responsive to said cutting operation of said knife for disconnecting said winding roll from said main drive and causing acceleration of said main drive to said predetermined rotational speed, means for sensing that the speed of said main drive has accelerated to said predetermined rotational speed, and means responsive to said sensing means for simultaneously effecting driving engagement of said core with said main drive and for releasing said belt to disengage said core therefrom, and means actuated by said pressure roll in response to movement thereof caused by the increasing thickness of the roll winding on said core for causing said indexing drive to advance said core from said starting position.

7. Continuous winding apparatus for web material comprising a reel for simultaneously supporting a winding roll and a new core, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means responsive to indexing of said new core to said starting position and including a mechanism operated by fluid pressure for causing driving engagement of. said core with said auxiliary drive, additional means responsive to indexing of said core to said starting positio'n for stopping said indexing drive, means operable only after operation of said additional responsive means for effecting cutting 'of said web and transfer of the cut leading end thereof to said core, means responsive to operation of said last named means for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means operated by fluid pressure for effecting engagement of said core with said main drive, and means responsive to acceleration of said main drive to said predetermined speed for controlling the supply of fluid pressure to said fluid pressure operated mechanism and means simultaneously to efiect simultaneously controlled engagement of said core with said main drive and disconnection of said auxiliary drive from said core.

8. Continuous winding pparatus for web material comprising a reel for simultaneously supporting a'wind- 1o ing roll and a new core, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means responsive to indexing of said new core to said startingposi-tion for causing driving engagement of said core with said auxiliary drive, additional means responsive to indexing of said core to said starting position for stopping said indexing drive, means operable only after opi eration of said additional responsive means for effecting cutting of said web and transfer of the cut leading end thereof to said core, means responsive to operation or said last named means for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for indicating that the speed of said main drive has accelerated to said predetermined speed, and means responsive to said indicating means for simultaneously effecting engagement of said new core with said main drive and disconnection of said auxiliary drive from said core.

9. Continuous winding apparatus for web material comprising a reel for simultaneously supporting a winding roll and a new core, a main drive for selectively driving said roll and core, an indexing drive for said reel to advance said new core to a roll starting position, an auxiliary drive for driving said new core in said starting position at a predetermined rotational speed, means responsive to indexing of said new core to said starting position and including a mechanism operated by fluid pressure for causing driving engagement of said core with said auxiliary drive, additional means responsive to indexing of said core to said starting position for stopping said indexing drive, means operable only after operation of said additional responsive means for effecting cutting of said web and transfer of the cut leading end i 7 thereof to said core, means responsive to operation of said last named means for disconnecting said winding roll from said main drive, means responsive to operation of said disconnecting means for causing acceleration of said main drive to said predetermined rotational speed, means for indicating that the speed of said'main drive has accelerated to said predetermined speed, means operated by fluid pressure for effecting engagement of said core with said main drive, and means responsive to said indicating means for controlling the supply of tfluid pressure to said fluid pressure operated mechanism and means simultaneously to eifect simultaneously controlled engagement'of said core with said main drive and disconnection of said auxiliary drive from said core.

References Cited in the file of this patent UNITED STATES PATENTS Kohler Feb. 26, 1952 Piperoux et a1. Sept. 20, 1955 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 2,,943,806 July 5 1960 Richard Wo Phelps It is hereby certified that error appears in the-printed specification of the above "numbered patent requiring correction and that the said Letters Patent should read as corrected below.

Column 2, line 4., for "from the" read form the column 6 line 45, for "manual" read manually Signed and sealed this 27th day of December 1960.

E L i363;

KARL H. AXLINE ROBERT C. WATSON Attesting Oflicer Commissioner of Patents

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