US2337585A - Roll handling apparatus - Google Patents

Description

E. E. BERRY ET AL ROLL HANDLING APPARATUS 6 Sheets-Sheet l Filed Jan. 51, 1942 9 w. 3 $1.14 Nu/.4. l l. oo l 9 3 W 2 22 Il Z VMM 7% o Z 0 wmv .711i Z ms A.. Z Z Y 4 I .51e/ ff 5542er.

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ROLL HANDLING APPARATUS Filed Jan. 31, 1942 6 Sheets-Sheet 5 @TVE1-72T;

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Dec. 28, 1943. E. E. BERRY ETAL ROLL HANDLING APPARATUS Filed Jan. 3l. 1942 6 Sheets-Sheet 4 Y QS Dec. 28, 1943. E BERRY ETAL I 2,337,585

ROLL HANDLING APPARATUS Y Filed Jan. 51, 1942 6 Sheets-Sheet 5 E221. E 556.6%. Lora /Voe/vasnel.

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ROLL HANDLING APPARATUS Filed Jan. 3 1, ,1942 6 Sheets-Sheet 6 lvl Patented Dcc. 28, 1943 f f' ROLL HANDLING APPARATUS Earl E. Berry and Lloyd Hornbostel, Beloit, Wis., assignors to Beloit Iron Works, Beloit, Wis., a

corporation of Ohio Application January 31, 1942, Serial No. 429,024

zo claims.

This invention relates to apparatus, especially useful in a paper winding machine, to eject rolls of paper from the machine and to feed a spare y winder shaft to the machine for the next winding operation.

More particularly the invention relates to apparatus for automaticallyvopening upthe bearing caps of a web winding machine, for automatically ejecting wound rolls from the machine, and for automatically supplying a new winder shaft to the bearing caps of the machine.

The apparatus of this invention will hereinafter be specifically described in combination with a paper rewinder and slitter machine with which it is particularly useful. However, it should be understood that the roll-ejecting and winder moves a spare winder shaft out of a pocket in the machine to feed the spare shaft to the bearing caps. The bearing caps are then closed and the machine is ready for the next winding operation.

The rewinder machine can receive the full width paper web from the reel of a paper machine and will first trim the deckle edges of this web.

The vertically movable slitter assembly of the rewinder machine is brought down on top of the roll being wound 'on the winder shaft after a few turns of trimmed paper have been wound on the shaft. Pos/itively driven slitter disks on this assembly cut through these turns of the web to completely sever the web into a plurality of strips or ribbons. The slitter disks then ride on top of the rolls being wound to continue toslit the incoming web. As a result a plurality of rolls will be formed simultaneously on the same winder shaft but the threading of individual ribbons of paper on the winder shaft is avoided since the slitting operation` does not start until the full width web has been wound for several turns on the shaft. A

As a result of this invention the manual handling of rolls and winder shafts into and out of a rewinder machine is eliminated and one election operation of the handling apparatus takes care of a plurality of individual rolls.

It is, then, an object of this invention to provide a paper winding machine capable of simultaneously winding a plurality of independent rolls and capable of simultaneously ejecting all of the Wound rolls.

A further object of the invention is to provide roll-handling apparatus which automaticallyv opens the winder shaft bearing caps of a. rewinder machine, ejects the wound rolls from the machine and feeds a spare winder shaft to the machine.

Another object of the invention is to provide improved roll-handling apparatus for paper rewinders which positively feeds a spare winder shaft into the bearing caps of the rewinder after ejecting the wound roll or rolls from the rewinder.

A further object of the invention is to provide roll handling apparatus for paper winder machines which sweeps in one direction to release the winder shaft bearing caps of the machine, then sweeps in the opposite direction to discharge the Wound roll or rolls from the machine and next sweeps in `a reverse direction to feed the spare winder shaft into the machine.

Other and further objects of the invention will be apparent to those skilled in the art from the following detailed description of the annexed sheets of drawings which, by Way of preferred example, illustrate one embodiment of the invention.

On the drawings:

Figure l is a broken side elevational view of a paper rewinder equipped with a slitter mechanism and a roll-handling apparatus.

Figure 2 is a fragmentary broken plan view along the line II--II of Figure 1.

Figure 3 is a broken front end elevational view along the line III-III of Figure 2,. Figure 4 is an enlarged fragmentary cro"s sectional view, with parts in elevation, taken along the line IV-IV of Figure 2.

Figure 5 is a view similar to Figure 4 but illustrating the parts in relative position after the ejection movement.

Figure 6 is a view similar to Figure 4 but illustrating the parts in position for feeding in the spare winder shaft.

Figure 'I is a fragmentary view similar to Figures 4 to 6 but illustrating the movements of the parts for unlatching the bearing caps.

Figure 8 is an enlarged fragmentary cross-sec- I, tional view with parts in elevation taken along `,.theline VIII-VII of Figure 3.

Figure 9 is a wiring diagram illustrating the automatic control of the ejector andsparewinder shaft feed mechanism. As shown in the drawings: In Figure l the referenceA character I designates `generallya Winder or rewinder machine adapted for receiving a web of paper W directly from the unwinding stand (not shown) of a paper making machine. The machine II) includes a frame structure II rotatably supporting a bottom slitter shaft I2 adapted to receive the web W thereover. Trimmers such as T are provided for cutting off the deckle edges of the web W. The web W is directed from the top of the shaft I2 beneath the first Winder under drum I3. A second Winder under drum I4 is rotatably mounted in closely spaced horizontal relation from the drum I3. The two under drums I3 and I4 provide a nip I5 therebetween for receiving therein a Winder shaft S on which a roll R is wound from the web W. 'Ihe shaft S is carried at its ends in split bearing caps I6. The bearing caps I6 are mounted on the ends of arms such as I1 carried on carriages such as I8. The carriages I8 are slidable in vertical grooves I9 provided by standards such as 20 in the frame structure. The arms I1 can thus ride vertically in the grooves I9 toward and away from the under drums I3 and I4 and will ride upwardly as the roll R builds up in diameter.

The bearing caps I6, prior to the winding operation, can be set at any desired level in the nip I5 between the under drums I3 and I4 by means of chains such as 2|- which have the ends thereof connected to the carriages such as I8 at 2Ia and 2 Ib respectively.

The chains such as 2| are trained around lower sprockets such as 22 and upper sprockets such as 23. The upper sprockets 23 are keyed on a shaft 24 carrying, at one end thereof, another sprocket 25 operated through a chain 26 from a. hand wheel 21 on the side of the machine. A ratchet 28 rotatable with the hand wheel 21 cooperates With a pawl 29 to hold. the chain 26 in fixed position for preventing unauthorized lowerlng of the carriages I8. 'Ihe pawl 29 is adapted to be tripped when desired by a foot pedal 30 connected to the pawl through a linkage 3|.

The carriages such as I8 can raise freely in the grooved tracks such as I9, since the chain 2l will rotate the sprockets 22 and 23 thereby rotating the sprocket 25 to move the chain 25 and hand wheel 21. The ratchet will merely click past the pawl 29 during this raising movement. However, the carriages I8 cannot be lowered unless the pawl is tripped by the foot pedal 30.

The bearing caps I6 will therefore raise away from the under drums I3 and I4 as the roll R builds up in diameter but When the roll R ls ejected from the bearing caps the bearing caps 'will not fall down unless they are manually lowered by operation of the hand wheel and foot pedal.

to 4'counterweighis such as 31.

ably mounted on the top. oj the frame stricture II. The other ends of the chains 35 are secured The counterweights 31 have rollers 38 thereon riding on Ways such as 39 of the frame I I.

The sprockets 36 can be secured to a single shaft 49 which carries a ratchet 4I acted on by a spring-pressed pawl 42 and adapted to be manually disengaged bya trip handle 43. The slitter roll assembly 32 can thus be manually raised in the grooves 4I 9 away from the roll R and the counterweights 31 facilitate this manual raising of the assembly. The pawl 42, when allowed to engage the ratchet 4I, will hold the assembly in its raised position until it is tripped by the operating handle 43.

The frame standards 20 carry rack bars such as 44. The rack bars 44 are in toothed engagement with spur gears such as 45 carried by the end frames 33 in bearing housings such as 46. In order to impart resistance to the rotation of the spur gears 45 friction clutches can be used thereby resisting the raising and lowering of the assembly.

Motors such as 41 drive belts such as 48 which rotate the slitter disk shaft 49. The slitter disk shaft contains a plurality of disk-type slitters such as 50 adapted to cut the web W being wound into a roll and also adapted to cut through the A rider Sutter assembly 32 including subf frames such as 33 at the ends thereof having groove-engaging carriages such as 34 riding in the grooves I9 of the frame standards'20 is provided above the bearing cap carriages I8. The slitter assembly is thus mounted in the main frame II of the Winder machine to ride up and down above the roll R being wound by the machine.

Sprocket chains such as 35 are attached at first few turns of paper on the Winder shaft S for completely severing the web into independent ribbons and thereby make possible the production of a plurality of rolls at the same time on a single Winder shaft. The Winder shaft can be grooved to permit entry of the edges of the cutter thereby insuring the cutting of the first few turns of paper on the shaft.

As best shown in Figures 2 and 3, the under drum I4 has axle portions 5I rotatably mounted in bearing housings 52 carried by the main frames II. Straps 53 are rotatably mounted on these axle portions 5I between the drum I4 and the bearing housings. The straps 53 have gear segments 54 thereon meshing with spur gears 55 on a drive shaft 56 which extends across the machine and is rotatably mounted in bearing housings 51. A motor M is coupled to the shaft 56 to drive the same.

A discharge platform 58 is carried by the main frame and extends across the top of the under drum I4 in spaced relation from the winding nip between the drums. This platform has pockets 59 adapted to receive the spare Winder shaft (not shown). Roll supporting ribs 60 extend from the platform 58 to guide the rolls of paper out of the machine.

Slots 58a are formed in the platform 58 and receive the spare Winder shaft feeder arms `6I therein. The feeder arms 6I are pivotally mounted as at 6Ia to the platform structure and, when in inoperative position, lie flush with the top of the platform or just under the top of the platform.

The other ends of the arms 6I are pivotally connected as at 6Ib to link rods 62. The link rods 62 are pivoted on crank arms 63 carried by a shaft 64 which is driven through a sprocket and chain drive 65 from the shaft 56. In extremely wide machines, 'a pair of shafts 64 and a pair of sprocket chain drives 65 may be used.

In order to impart resistance to the rotation of the shaft 64 and to prevent coasting of the shaft. a friction clutch assembly 66 best shown in Figure 8 is provided. As therein shown, the platform structure 58 carries a cup-shaped housing l61 through which the shaft 64 is freely rotatable. A pair of clutch elements 68 and 69 are keyed to the shaft 64 by means of a key 10. 'I'hese clutch elements carry friction clutch disks 1| on their opposed faces.

The housing 61 has an internally toothed ring 12 bolted to the open end thereofas by bolts such as 12m. A plate 13 is disposed between the friction disks 1| and has external teeth meshed with the internal teeth of the ring 12. The plate 13 thus oats in the ring 12 in geared or splined relation thereto.

A strap 14 is disposed around the shaft 64 in spaced relation from the housing and abuts acoil spring which acts on the clutch element 69. The strap 14 can be adjusted on the shaft 64 to vary the spring compression as desired.

With the spring 15 urging the clutch element 69 against the plate 13 the plate 13 will be squeezed between the friction disks 1|, and since it is geared or splined to the ring 12, it willimpart resistance to the rotation of the shaft 64. In the event that a plurality of shafts 64 are used, a plurality of friction clutch assemblies 66 would be used, one for each shaft.

85a to engage the spare Winder shaft and push the same over the drum I4 into the open bearing caps.

The abutment faces 84a and 85a of the arms 84 and 85 are maintainedin spaced opposed relation and the arm 85 is adjustably mounted on the gear segment 54, through bolts 86 which extend through slots 81 in the arm 85.

As best shown in Figures 4 to 6, the chain and sprocket drive such as the drive 65 between the shaft 64 and the shaft 56 described above in connection with Figures 2 and 3 includes a Referring again to Figures 2 and 3, it will be noted that one of the bearing housings 52 for the under drum I4 has a trough-like track |16 mounted on the top thereof. This track is open ended and extends from a point adjacent the bearing cap I6 for the winder shaft S. The Winder shaft S and spare Winder shaft SS are preferably equipped with thrust bearings B on one end portion thereof for thrusting against the sides of the bearing cap I6. One of these thrust bearings B is adapted to ride in the track |16 for guiding the spare Winder shaft into the bearing cap. As shown in Figure 1, the track |16 slopes downwardly at its inner end below the tops of the rolls I3 and I4.

As best shown in Figures 4 to 7, the bearing caps |6 each are composed of a bottom member |6a. fixedly carried by the arm I1 and a top member |6b pivoted to the arm |1 as at |6c. The top member I6b has a dog or tooth |6d projecting from the free end thereof adapted to be engaged by the latching finger 16 of a latching device 11 which is pivoted to the lower cap portion |6a as at 18. The latching device 11 is counterweighted as at 11a and a spring 19 may be interposed between the latching member 11 and the arm portion |1 to further urge the latching device for'moving the nger 'i6 into engagement with the tooth |6d.

A spring 80 is disposed around the pivot |6c for the bearing cap portion |6b and has the ends thereof acting respectively on a stop 8| on the arm l1 and a. stop 82 on the bearing cap portion |61). The spring 88 is thus effective in urging the cap |6b to the open position shown in Figures 5 to 7. y

The straps 53 disposed around the axles 5| of the drum i4 each carry a tripping pin 83 adapted toengage the latching device 11 to trip the nger 16 off of the tooth |6d and permit the cap portion |6b to spring to open position.

Each strap 53 also carries an ejector arm 84 having' an abutment face 84a, adapted to engage the end portions of the winder sha-ft S for moving the same out of the bearing caps and out of the machine. Y

The gear segment 54 carries a spare Winder shaft pusher arm 85 having an abutmentfacc sprocket 65a, freely mounted on the shaft 64. A pawl 65h is pivotally mounted on the sprocket 65a and is spring urged by a spring 65o also carried by thesprocket against a cam 65d keyed to the shaft 64. The cam 65d has a single tooth 65e adapted to be engaged by the pawl 65h.

As explained above, the shaft 56 is driven by the motor M to drive the chain of the chain drive 65. This chain drives the sprocket 65a to rotate the pawl 65h around the cam 65d until the pawl engages the tooth 65e whereupon the shaft 64 will be driven. The motor M is a reversible motor as will be hereinafter fully described.

When the rolls such as R are completely wound by the under drums I3 and I4 as shown in Figure 4, the shaft 56 is driven by the motor M in a counter-clockwise direction. This will raise the gear segment 54 thereby swinging the straps 53 to move the pins 83 against the bearing cap latching devices 11 and release the latchF ing fingers 16 from the teeth |6d of the bearing caps. The bearing caps will then spring open.

During the latch tripping operation with the shaft 56 moving in a counter-clockwise direction the sprocket 65a will also be moved in a counterclockwise direction to move the pawl 65h against the tooth 65e and thereby driving the shaft 64 to position the crank arms 63 at the bottom of their strokes. The spare winder shaft feeding arms ,6| thus have the ends 6|b thereof moved below the pocket 59 for the spare winder shaft SS. The spare Winder shaft SS is already positioned in thepocket for the feeding operation.

The motor M is then reversed to drive the shaft 56 in a clockwise direction. This will effect a lowering of the gear segments 54 and a raising of the ejector arms 84 to position theirifaces 84a against the ends of the Winder shaft S. Continued movement ofthe ejector arms will force the Winder shaft S to carry the rolls R thereon over the top of the under drum |4 with one of the thrust bearings B on the shaft spaced above the track |16. After the arms 84 have pushed the shaft S over the top of the drum |4 the rolls R will roll downwardly over the platform 58 across the pocket 59 and over the discharge arms 68.

During this clockwise movement of the shaft 56 the pawl 85h on the sprocket 65a has merely backed away from the tooth65e of the cam 65d and has rotated around the cam so that the shaft 64 is not driven, as shown inxFigure 5. As a result the feed arms 6| for the spare Winder shaft will not be moved. l y

After the rolls R have rolled past the pocket 59 for the spare Winder shaft SS the motor M is again reversed to again drive the shaft 56 in acounter-clockwise direction as indicated in Figure 6. shaft 58 will again raise the segment gears 54 and will again move the pawl65b on the sprocket 65a against the tooth 05e on the cam 65d thereby driving the shaft 54 to raise the crank arms 63 thereon and move the links 02 to raise the arms 6I for lifting the spare winder shaft SS out of the pocket 59 and rolling the same over the platform 58 onto the drum I4. By the time the spare Winder shaft SS reaches the drum I4 the abutment faces 85a onthe feed arms 85 have been raised due to the raising of the gear segments 54 into pushing engagement with the spare winder shaft SS to move the same over the top of the drum I4. One of the thrust bearings B and the spare Winder shaft is in position for the next winding operation.

During the next winding operation, the shaft S can be retracted from the rolls R wound thereon and deposited in the pocket 59. It thereupon becomes a spare Winder shaft for the following winding operation.

The roll handling apparatusthus first moves in one direction to open the bearing caps, then moves in a. reverse direction to eject the wound rolls of paper from the under drum and next moves hack to feed in the spare winder shaft.

At the start of the winding operation the leading end of the web W is trained under the drum I3 and between the Winder shaft and the drum. It is then tucked over the winder shaft between the shaft and the drum I4. Tuckers (not shown) can be used for the tucking operation. To facilitate the tucking operation and to move the leading end of the web W from the roll I3 over the top of the Winder shaft. an air pipe 90 (Figure 2) can be mounted across the top of the drum I3.

This air pipe can have nozzles 90a along its length to direct streams of air under the web overlying the drum I3 thereby blowing the leading end of the web over the Winder shaft S so that the tuckers can engage the leading end and tuck the same between the shaft and the drum I4. If very lightweight paper is being directly wound `around a collapsible winder shaft, it may be desirable to protect the first few turns of paper against tearing when the collapsible shaft is withdrawn by covering the shaft with a sheet of heavier paper. For this purpose a tray 9| as also shown in Figure 2 can be molmted above the drum I3 for holding sheets of heavier liner paper. A sheet of liner paper can be laid over the drums I3 and I4 and .over the leading end of the web W to be wound.

The windet shaft is then inserted on top of the liner paper and an air blast from the pipe 90 will then raise boththe leading end of the web W and the liner sheet from the roll I3 to permit the tuckers to tuck both sheets around the shaft.

The wiring diagram of Figure 9 illustrates the manner in which the motor M can be controlled through its reversing cycles for moving the rollhandling apparatus as described above.

InA Figure 9 the reference numerals 95, 98 and 91 represent' 3-phase current conductors to reversing switches RS1 and RSz. These conductors communicate through the switches with power lines 95a, 96a, and 91a respectively to the motor A M of the machine.

The switch RS1 is controlled by a contactor 38 including an operating or energizing coil 98a.

The switch RS: is likewise controlled by a contactor 99 including an operating coil 99a.

A control arm |00 is swingabiy mounted, for example, on a strap 53 of the machine so as to swing with the ejector arm 84. The control arm |00 can obviously be mounted in any suitable position as long as it has the same swinging movement'imparted thereto as is imparted to the ejector arm or strap 53.

'I'his control arm |00 has a tipped end I00a for actuating limit switches LS1, LSz and LSa. The limit switches LS1 and LS; have spring-biased toggle arms controlling a pair of contactors. In other words the limit switch LS1 includes a contactor C1 and a contactor C12 while the limit switch LS: has a contactor C3 and a contactor Ca2.

The limit switch LSz has a single contactor C2. However the control arm of this limit switch carries in pivotal relation thereto a depending latch IOI which is acted on by the arm I00a. This latch IOI, due to its pivotal mounting, eiects movement of the contactor Cz of the switch only when the arm |00 is driven in a clockwise direction. When the arm moves past the switch in a counter-clockwise Vdirection the latch I0| is merely tripped without in any Way moving the switch.

' A push-button P. B. is mounted in the circuit and, when this push-button is manually depressed, it closes the circuit through the contactor Crof the limit switch LSs and the contactor 98 to the coil 99a. 'I'his coilis thus energized and raises the contactor 99 so as to throw the reversing switch Rs2 across the 3-phase line in such a way as to drive the motor M in a direction for unlatching the bearing caps of the machine.

As the contactor 99 raises it closes, in addition to the reversing switch RSz, a pair of contacts that by-pass the push-button so that the motor will continue to run even though the push-button Y switch RSz will then drop to open position. However, when this occurs the contactor C32 of the limit switch LS; closes the circuit through the contactor C12 of the limit switch LS1 and the contactor 99 of the reversing switch RS2 to the coil .98a of the reversing switch RS1. The coil will thereupon move the reversing switch RS1 to a position for throwing the motor across the 3-phase line in such a way as to cause it to run in the eject direction as indicated. The contactor 98 at the same time closes its own holding circuit and the motor will continue to run until the arm gets back to the limit switch LS1. As explained above, the arm in swinging back to the limit switch LS1 wil1 not aiect the switch LSzv since it will merely trip the latch IOI thereof.

When the arm trips the limit switch -LS1 the contactor C12 thereof opens the holding circuit through the coil a and the reversing switch RS?. drops to open position. At the same time, however, the contactor C1 closes the circuit through the contactor C3 of the limit switch LSx and the contactor 98 of the reversing switch RS1 to the coll 93a of the reversing switch RSz thereby again moving the switch to its closed position and again reversing the motor. The contacter 99 will again complete its holding circuit and the motor will continue to run in a direction for feeding in the spare Winder shaft until the arm end Ia trips position shown in solid lines to hold the limit than necessitated If desired, of course, the motor can be con-v trolled by manually operated switches.` The Wiring diagram of Figure 9, however, permits full automatic operation of the motor.

It will, of course, be understood that various details of construction mayLbe variedk through a Wide range Without departing from the principles of this invention and it is, therefore, not the purpose to limit the patent granted hereon otherwise by the scope -of the appended claims.

We claim as our invention:

1. In a web Winding apparatus including mechanism for Winding a web around a Winder shaft, split bearing caps mounted onthe apparatus for positioning the Winder shaft relative to the Winding mechanism, and ejector means adapted to engage`the Winder shaft for ejecting the shaft and Wound Web thereon out of the apparatus, the

improvements Which comprise spring means urg ing thebearlng caps into open position, latch means holding the bearing caps in closed position, and latch-tripping means engageable With said latch means to open the bearing caps before the ejector means moves the shaft and Woundy web.

apparatus, the improvements of spring means urging said bearing caps into open position, latch means holding the bearing capsl in closed position, and latch tripping means movable with the swingable ejecting means and engageable With said latch means to open the bearing caps before the swingable means engage the Winder shaft.

electing the shaft and Wound Web thereon out of the apparatus, the improvements of spring means urging the bearing caps into open position, latch means holding the bearing caps in closed position,and latch-tripping means engageable with said latch means to open the bearing caps before' y on the apparatus for automatically opening the bearing caps before the ejector means moves the shaft and Wound roll.

4. In a web Winding apparatus including a pair `of driven under drums adapted to receive a Winder shaft therebetween for Winding a web therearound, split bearing caps mounted on the apparatus for movement toward and away from the under drums to position the'winder shaft for the winding operation, and swingable means 4adapted to engage the Windershaft for ejecting the shaft and wound web thereon out of the 5. In a paper Winding apparatus including driven under drums, Winder shaft bearing caps mounted on said apparatus for movement toward and away from the under drums and -rollejector mechanism for discharging Wound rolls out of the apparatus, the improvements which comprise latch means holding the bearing caps in closed positions, tripping means Vmovable with said ejecting mechanism for tripping the latch means to open the bearing caps, and means for feeding a spare Winder shaft to the open bearing caps after the Wound roll has been ejected from the apparatus.

6. A paper Winder comprising a main frame, a pair of driven under drums rotatably mounted in said frame, vertical tracks in said frame, carriagesrslidably mounted in said tracks, bearing caps carried by said carriages adapted to position a Winder shaft in the Winding nip -between the under drums While allowing the shaft to raise relative to the Winding drum as a roll is built up therearound, swingable ejector arms engageable with the Winder shaft to move the Wound rolls over one of the under drums and out of the Winder, a spare Winder `shaft pocket adjacent said under drums, feedV arms forlifting the spare Winder shaft out ofthe pocket,v and a pusher for moving the spare Winder shaft over said under drums into said bearing caps.

'7. Roll `handling apparatus for a paper re- Winder having a pair of driven under drums and split bearing caps for positioning a Winder shaft vin the Winding nip between the drums which comprises straps swingably mounted at the ends of one of the under drums, ejector arms carried by said straps for engaging the Winder shaft, pusher arms carried by said .straps for feeding a new Winder shaft to the bearing caps, gear segments for swinging said ejector and pusher arms, a drive shaft, gears on said drive shaft engaging said gear segments, .a crank shaft, spare Winder shaft feed arms pivotally mounted adjacent the under drum with the straps at the ends thereof, links connecting the crank shaft With the feeder arms, a sprocket freely mounted on said crank shaft, a chain driven by the drive` shaft for rotating said sprocket, a pawl on said sprocket, a cam keyed on said crank shaft having a pawl abutment tooth, means for rotating said drive shaft 'in one direction to move the ejector arms against the Winder shaft for ejecting the Wound rolls from the machine, and means for rotating the drive shaft in the opposite direction to move the pawl against the cam abutment tooth for driving the crank shaft to raise the links and feeder arms for depositing a spare Winder shaft onto said under drum for engagement by said pusher arms whereupon said pusher arms Will deposit the spare shaft in the bearing caps.

8. Roll handling apparatus for Winding machines having an under drum and bearing caps for'positioning a Winder shaft relative to the drum 'which comprises "a motor, a drive shaft adjacent the under drum driven by the motor, ejector arms swingable at the ends-of the under drum, gears connecting the ejector arms with the drive shaft, bearing cap opening means movable With the ejector arms, means driving the motor in one direction to 'move the bearing cap opening means into position for opening the bearing caps, and means for driving the motor in the opposite direction to move the ejector arms for discharging the Wound roll out of the machine.

9. A roll handling apparatus for paper Winding machines which comprises a main drive shaft, swingably mounted ejector arms driven by said main drive shaft, spare Winder shaft feeding arms, a crank shaft for raising said arms to feed a spare Winder shaft to the Winding machine, and a cam and pawl driving connection between the main drive shaft and the crank shaft.

10. In a roll handling apparatus including a driven main shaft the improvement of spare Winder shaft feed mechanism which comprises a plurality of spare Winder shaft feeding arms,

a crank shaft for raising and lowering said arms,

a friction clutch device resisting rotation of the crank shaft, and a cam and pawl drive connection between the main drive shaft and the crank shaft.

11. In a roll handling apparatus for a Winding machine including a driven under drum and bearing caps for positioning a Winder shaft relative to the drum for the Winding of a roll thereaiound, the improvements of thrust bearings on the Winder shaft engageable With one of the bearing caps, a track adapted to receive one of the thrust bearings on the Winder shaft, and means for feeding the Winder shaft to the bearing caps With a thrust bearing thereon riding in said track.

12. In a roll handling apparatus for a Winder machine having a driven under drum, the improvements of a discharge platform fxedly mounted adjacent said drum to receive the Wound roll thereover, said platform dening a pocket for a spare Winder shaft and recesses for spare Winder shaft feeding arms, spare Winder shaft feeding arms seatable in said recesses to extend under the spare Winder shaftfwhen the latter isl seated in said pocket, said arms having their drum adjacent ends pivoted to the platform, links connected to the other ends of the feeding arms, and a crank shaft for driving the links to raise the feeding armsfor lifting the spare Winder shaft out of the pocket to roll the same over the under drum.

13. In a roll handling apparatus for a Winding machine having a pair of driven under drums, the improvements of a pair of Winder shaft positioning caps mounted for movement on said machine toward and away from the under drums to hold the Winder shaft and roll being Wound thereon in Winding position relative to both under drums, each of said caps having a pivoted cover portion adapted to be opened for removal of the Winder shaft, roll ejector mechanism adjacent said under drums to move Wound rolls out of the machine, andv bearing cap cover opening means on the ejector mechanism.

14. In a roll handling apparatus fora Winding machine having a pair of driven under drums, the improvements of a pair of Winder shaft positioning caps mounted for movement on said machine toward and away from the under drums to hold the Winder shaft and roll being Wound thereon in Winding position relative to both under drums,

each of said caps having a pivoted cover portion 1 adapted to be opened for removal of the Winder shaft, a spring on each bearing cap urging the cover thereof to open position, a latch on each bearing cap for holding the cover in closed position, latch tripping means swingably mounted at the ends of an under drum, and means for driving the tripping means upon completion of the Winding operation to open said covers.

15. In a Web Winding apparatus, a pair of .driven under drums, a Winder shaft cooperating with said under drums to receive and Wind a Web into a roll, ejector means engageable With the shaft to eject the roll and shaft from cooperating position, a spare Winder shaft pocket adjacent an under drum, a spare Winder shaft in said pocket, means for raising the spare Winder shaft out of the pocket to roll the same onto the adjacent drum, and pushers for receiving the spare Winder shaft from said means to push the shaft into cooperatingposition With both drums.

16. Automatic roll handling apparatus for a Winder machine having a pair of driven under drums, a Winder shaft cooperating with said drums to receive and Wind a Web into a roll, and a spare Winder shaft adjacent an under drum Which comprises, ejector mechanism for removing the shaft and roll from cooperating position With said drums, spare Winder shaft feed mechanism for feeding the spare Winder shaft Jinto cooperating position With said drums, a main drive shaft for both mechanisms, a reversible motor for said drive shaft, means automatically `reversing said motor to drive the main shaft in opposite directions, and a cam and pawl drive operatively interposed 'between the main drive shaft and the spare Winder shaft feed mechanism to drive the latter mechanism in one direction only.

17. Roll ejector and spare Winder shaft feed apparatus for an under drum type paper Winder which comprises mechanism swingably mounted at the ends of an under drum, ejector arms on said mechanism having Winder shaft abutment faces, pusher arms on said mechanism havingv spare Winder shaft abutment faces in spaced opposed relation from the Winder shaft abutment faces of the ejector arms, means for swinging the mechanism in one direction to thrust the abutment faces of the ejector arms against a Winder shaft upon completion of the Winding operation for ejecting the Wound roll over the drum, means for depositing a spare Winder shaft on the drum. and means for swinging the mechanism in the reverse direction to thrustthe pusher arm faces against the deposited spare Winder shaft for moving the spare shaft to Winding position.

18. In combination, a pair of driven under drums, a Winder shaft cooperating with said drums to receive and wind a Web of paper into a roll, roll ejector mechanisms at the ends of a drum adapted to engage the end portions of shaft to remove the shaft and roll from cooperating position, a common drive'shaft for both mechanisms, a reversible motor for driving said shaft.`

a crank shaft, a. sprocket rotatable on the crank shaft, a chain driven by the drive shaft rotating said sprocket, a pawl on said sprocket, a cam aflixed to the crank shaft having an abutment engageable by the pawl when the sprocket is rotated in one direction and ridable past the l 2,33*#,585 only to cause the feed mechanism to remain at' rest during movement of the ejector mechanism in one direction.

19. The structure of claim 18 inclm a friction clutch on the crank shaft for resisting free abutment ring on the shaft adapted to thrust against a bearing cap, a track, ejecting means for moving the shaft and roll vthereon out of the l caps over the t ck, a spare Winder shaft having an annular caaabutmentring, and means for feeding the spare w`inder shaft into the bearing caps with the abutment ring riding in the track to align the spare shaft relative to the caps.

EARL E. BERRY. LLOYD HoRNBosTEL.

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