US1580375A - Tube-winding apparatus - Google Patents

Description

April `13 1926.

E. F. HULBERT TUBE WINDING APPARATUS "Filed June 22. 1925 1o sheets-snee; '1

. April .13, 1926. 1,580,375v

E. F. HULBERT TUBE 'WINDI NG APPARATUS y J Filed Jim@ 22,1925 ,1o sheets-'sheet 2 0. Il ,y 1| il Il s A l April 13 1926.

E. F. HULBERT TUBE WINDING APPARATUS Filed June 22, 1925 1o. sheets-sheet 1,580 375. Aprll 13 1926.. v E. F.. HUL-BERT v TUBE WINDING APPARATUS Filed June "22, 1925 110 Sheets-sheet 4 Luamf fwL/@J 10 sheets-sheet 5 E. F. HULBERT TUBE WINDlNG APPARATUS Filed June 22I l1925 April v13 1926.

.SAT

April 13 1926. 1,580,375

. E. F. HUI- BERT` n TUB-E-wINDING APARATUS v FledJune 22, 1925 10 Sheets-Sheet 6 i f/G. /7 ..4 HG. 9l

l April 13 1926.

E. F. HULBERT TUBE WINDING APPARATUS 10l sheets-sheet v Filed June 22, 1925 April 13 1926.

` E F. H

. 1,580,375 ULBERT TUBE WINDING APPARATUS Filed June 2 y i m;

wir il; V/IE l l 10 sheds-sheet a April v13 1926.

y E. F. HULBERT TUBEv wIpDING APPARATUS April 1 3 ,1926.

vE; F. HULBERT y TUBE WINDING APPARATUS,

Filed June '22, 1925 10 Sheets-sheet 10 as k v z I 5 v Patented Apr. 13, 1926. n,

.UNITED STATES y 1,580,315 PATENT OFFICE.

EDWIN F; HULBERT, OF MILWAUKEE, WISCONSIN, ASSIGNOR, BY -lllESNIl] ASSIGN- MENTS, '.ITOv THE MASTER PACKAGE CORPORATION, OF DELAWAR.

Application led June 22, 1825. Serial- No. 38,765.

To all whom t may concer/n:

Be it known that I, EDWIN F. HULBERT, a

. citizen of the 'United States of America, and

resident of Milwaukee, in the county` of Milwaukee and State of W'isconsin,l have invented new and ,useful Improvements in Tube-finding Apparatus, 'of which the following is a description, reference being had to the'aecompanying drawings, which are a part of this specification.

The invention relates to tube Winding machines, and more particularly to machines for winding paper; fibre or' wood veneer sheets upon one another to form the bodyor siding of a container. 4

One of the objects of the invention is to provide a method and apparatus `for winding the tubinginto a step-wound shell, prefer.

ablyin multiple, whereby one end of the siding is provided with an interior shoulder lto take the end closure and the other end of the siding is of reduced'outside diameter to take the siding of the cover of the container.

A further object ofthe invention is to provide a tube winding machine in which the materialtaken from the supply roll is out to the desired length, is coated with adhesive, is slit or cut to the desired width, and is wound to finished form on a mandrel; these various steps being carried out by apparatus so combined and coordinated as to be under the control of a single operator. v i

The invention further consists in thesev eral features herein described and more particularly defined by claims at the conclusion hereof. i

In the drawings: Fig. 1 is a side elevation View of the cutting mechanism and the feed therefor; parts being broken away; v

Fig. 2 is a detail sectional view through the cutting mechanism, taken on the. line Q .201i Fig.4;

Fig. 3 is a detail sectional view taken on the line 3 3 of Fig. 4; .p

Fig. 4. is 'a front elevation view of the cutting mechanism, parts being broken away and parts being shown in section;

Fig. is a detail plan view of the feed mechanism associated with the cutter, parts being broken away and parts being shown in section; l

Fig. (l is a front elevation View of the adhesive-am'dying mechanism;

Fig. T is a side elevation view et the adhesive-applying mechanism;

Fig. 8 is a section taken on the line 8-8 of Fig. 6; i v l Fig. 9 is a detail sectional View taken on the line 9-9 of Fig. 6;

Fig. 10 is a composite see-tional View taken along the broken line 10-10 of Fig. 8;

Fig. 11 is a view, partly in elevation and partly in sect-ion, of the slitting mechanism; Fig. 12 kis a.. detail sectional 'view taken on the line 12-12 of Fig. 11 showing one of the cutters raised;

Fig. 13 is a sectional view taken'on the line 13-18 .of Fig. 11, showing'one of the cutters lowered;

Fig. 14 is a section taken on the line 14-14 of Fig. 13;

Fig. 15 is a section taken on the line 15-15 of Fig. 13;

Fg. 16 is a detail sectionalview taken along either of the lines 16-16 of F 1l,

showing the clutch mechanism;

Fig. 17 isa side elevation. View of the Slitting mechanism and winding mechanism;

Flg. 18 is a Vertical sectional View through the winding mechanism, taken `on the line 18-1'8 of Fig. 17;

Fig. 19 is aV detail sectional view taken on ythe line 19--19 of Fig. 18;

Fig. 2O'is a detail view lookingv in the direction of the arrows 20- 20 on Fig. 18 along Fig. 21 is a detail view looking in the direction of the arrows 21-21 on Fig.v 18 along the line A A;

,Figa 22 `is' a detail sectional view along the line 22.-22 of Fig. 18;

Fig. 23 is a detail sectional View through the drive shaft for the tube mandrel;

Fig. 24 is an elevation view of air control mechanism;

Fig. 25 is a section taken on the line 25- 25 of Fig. 24; i

Fig. 26 is asection'taken along the line 26.--26 of Fig. 11;

Fig. 27 is a section 27-27 of Fig. 11; V

Fig. 28 is Aa detail sectional view taken on taken1 along the line the line 28-28 of Fig.,` 17;

Fig. 29 is a detail sectionalview taken on Fig. 30 a schematicyiew of the apparatus embodying the invention, with the con- .trol systeml therefor;

Fig. 31 is a detail enlarged View of parts ot the cuttmg mechanism;

. section;

Fig. 37 is a view, partly in section, of the finished tubing.

The apparatus includes cutting-off mechanism and means for feeding the roll material thereto, and this part of the machine is shown in Figs. 1 to 5, inclusive, of the drawings, in which the numeral 40 designates the frames having a sheet support 41 secured thereto, carrying the fixed .cutter bar 42 which cooperates with the reciprocating knife bar 43 mounted on a frame 44 yieldingly held in an elevated position by means of spring 45. 44 is suitably guided in ways 44 on the frames 40 and is moved downwardly by cams 46 engaging with a part of said frame 44 and mounted on a shaft 47 which is rotated at the desired time yto cut the sheet .to the desired length.

Spaced frames 48 having bearing brackets 49 thereon receiving the arbor 50 carrying the supply roll 51. The sheets from this roll pass between a uide roll 52 and springpressed fingers 53 pivoted on a shaft 54 and urged. against the roll 52 by springs 55, and it then passes between feed rolls 56 and 57 to the cutter. The upper feed roll 56 has its shaft mounted in journals 58 which are urged downwardly by springs 59 so as to provide a yielding engagement between the rolls 56 and 57 and the material passing between them. The lower roll 57 is continuously driven by the drive shaft 60, carrying drive pulleys 61, by suitable gearing comprising bevel gears 62 and 63, shaft 64 and bevel gears 65 and y66, the gear 66 being mounted on the shaft 57 for the roll 57.

A continuously driven pulley 67 is loosely mounted on the shaft 47 and is adapted to drive the same through a one revolution type pin "clutch,- including a pin 68 mounted in a hub69 on said shaft and urged'by a spring 70 into a recess 71 inI the hub of the pulley 67 Control of the pin 68 is effected by a wedge. 72 engageable with said pinu and normally moved downwardly by a spring 73 to move and hold said pin in inoperative position, and moved upwardly out of engagement with said pin by.a solenoid'74 whose plunger 75 is connected to said wedge.. As the. solenoid is only energized for a sufficient length of time to release the pin from the wedge, and immediately there- The knife bar frame' 'after the wedge is returned by the spring to a position to move the pin 68 out of clutched engagement with the pulley, the pin 68 is engaged with the pulley to effect only a single' rotation of the shaft 47 and is then wit around to a position inwhich the wedge acts on it. A drag brake 67 is associated with the hub of the pulley 67 to preventv overrunning.

At the time of cutting the feed is interrupted by the raising of the roll 56 by the turning of cams 76 on the shaft 56 for said roll,gsaid cams cooperating with fixed surfaces 77 (see Figs. 5, 30 and 31). When the flats of said cams'are engaged with the' surfaces 77, as in Fig. 31, the rolls 56 and 57 are in feeding relation, and when the shaft 56 is oscillated to the position shown in Fig. 30, the rolls are held in separated nonfeeding position. To effect the oscillation of the shaft 56 the shaft 47 carries a knocker arm 7 8 which engages an arm 79 on the shaft 56 to effectV a swinging of the same, as above described (seen Figs. 1, 4, 30 and 31). lVhen the roll 56 has been swung to thevposidrawn by the wedge when it moves tion shown in Fig. 30, feed of the material is again resumed by the swinging of the shaft 56 back to the position shown in Fig. 31 by an arm 80 on the shaft 56 connected by alink S1 to the plunger 82 of a solenoid 83 which is energized to accomplish this movement.

The sheet S is forced by the feeding rolls 56 and 57 along an adjustable table 84, in the form of adjustable rack bars, not shown in detail but shown diagrammatically in Fig. 30, to the gumming or-adhesive-applying mechan'sm. This mechanism, shown in detail in li`igs. 6 to 10, inclusive, includes a coating roll 85 and feed rolls 86. Theroll 85 receives adhesive or sizing from a tank 87 by means of feed rolls 88 and 89. The shafts 85 for the rolls 85 and the shaft 92 for the roll 89 are connected by gears 90 and 91, and the shaft 92 for the roll 89 carries a sprocket 93 connected by a chain 94 to a sprocket 95 on a shaft 96. The shaft 96 carries another sprocket 'connected by a chain 97 to sprocket 98 on a shaft 99. The shaft 96 is connected by gears 100 and 101 to a shaft 102 connected by ears 103 and 104 to the power shaft 60. T e shafts 96 and 99 carry feed rolls 105. The rolls 105 and S6 lli) shaft 92 of roll 89 being made adjustable for this purpose.. The rolls 86 are carriedv inra frame 113 whichhas legs 114slidably mount-l ed in guideways 115 in the frame 116 of this l unit, and aplate 117is mounted -on a-support 118 adjustably pivotally mounted on the frame.113. The-frame 113 isn1oved up- V- wardly to bring the sheet into operative position relative to the roll 85 by means-of an 'air cylinder 119 havinga piston (not shown) mounted therein and connected to a piston rod 120 which is connectedA to transverse bars 121 of the frame 113. v Introduction of air Vinto the cylinder 119, below the piston,

1 5* causes it topmove the frame 113 upwardly i' Vand 105, over the belts ,106, rolls 86 and rol1'105, and during its, passage receives' a coating of adhesivefrom the roll 85. The

plate 117 and between the guide 108'and Acoatingv roll is disposed above the material and is-so proportioned as` to allow its. lower surface to be positioned well 'below theibath of adhesive material and thep'feed 39 rolls88 and 89 so that excess adhesive may terial from the'ends of the coating roll is vremoved by Scrapers 85', having troughshaped shoulders, Aassociated with the bath,

and returned thereby 'j by gravity ',to; s aid 35 bath.

From the. adhesive-applying mechanism Y the sheet passes overa table 124 .(F ig. 30') to the slitting mechanism, which `is shown in detail Figs. 11' to 17, inclusive, 26, 27 and 30). This mechanism includes an anvil roll 125 which ,may be'driven either'by an electric motor 126 or by the main power drive of the machine through either of two sul - with cutters 147 to slitl or cut the-.sheet lengthwise as it. passes between said :cutters gearing connections and-.clutches 127. vEach clutch, as shown in'Fig. 16,comprises a notched disk 128 carried byv the shaft 120 of the roll 125, and a clutch cylinder 130 which drives the disk 128 through balls 131 mounted-'in the notches 132 oi' said disk. For the motor drive the cylinder 130 is formed integral with a ygear 133 meshing with a gear 134 oir a shaft '135 carrying a worm wheel 136 meshing with awor'ni 137 on a shaft 138 driven-through suitable gear,- ing 139 bythe shaft of the motor 126. For the machine drive the otherclutch cylinder 130 is formed integral with a gear 140 connected through a gear vtrain 141, 142, a143,

144, to a shatt'145 driven 'from the shatt- 164 through sprocketv 235;- chain j234n-and I yand 180, registering respectively with a sprocket4 146. This anvil 'roll cooperates 'tobring the sheet into a position to receive jit'sfcoating'fromrroll 85. vThe roll 88 is on said pulley. v The shaft 164 more-particularly iii l vto 15, each of the cutters 147 is in the form ofl a roller mounted on abar 148 slidablyv mounted `in a guide frame 149 having a gib connection 150 with the main trame 151, said frames .149 being slidable along the frame 151 lfor adjusting thespacing and being secured theretofin any suitable man-` ner, Each cutter is yieldably pressed to its work by a spring 152 interposed between the top .of the bar and an adjusting screw '153 on the frame 151.

In .order to raise thecutters from the work, each cutter bar is 'provided with an arm 154 engageable with a cam 155 on a manually-operable,

transversely disposed shaft 156. For step winding, as`shown in Fig'. 36, the cutters are arranged in pairs and the cams 155 are so arranged that the turning of the shaft 156 brings one cutter 'of each pair to an operative position and raises the other cutter air. To turn the shaft 156. a handl'ever 157 is mounted thereon, the shaft being held in adjusted position by anotched quadrant 158 and a hand-operated spring-pressed detent 15,9 associated with the lever 157 .j vVVith-.this construction the 'slit portion W of the sheet material which is not to be wound is deiected downwardly after leaving the cutters, as shown in Fig. 36, by rollers 160g each mounted on an arm' 161 of the cutter bar 148 .and in a plane to one side of the cutter.

After the slitting operation the sheet, now j cut into several sheets of lesser width,-is fed direct to the tube-winding mechanism.

The tubo-winding mechanism, shown moreV particularly in Figs. 17 to 25, inclusive, and' 28 to 30, inclusive,'includes a frame 162 and a winding drum or mand-rel 163 mounted on. a shaft 164. This shaft is journalled in rela-.

lined bearings 165 and 166 at one end, while at the other end it is supported tively aremovable bearing, 'as shown-in Figs. 18, 28 and 2 9, 1n the form ot a bearing vbracket 167 provided with a journal pin 168 fitting in the journal cap 169 in said shaft and having its lower end threaded to engage a feed screw 170 mounted to turn on.- a stud shaft 1.71 and carrying a andle 172, said bracket being held against lateral movement by lixed guide lugs 173. v'A drive pulley 174 is loose on lthe shaft 164 and isadapted to hedrivingly connected thereto bya clutch, including a disk 175 slidably keyed to said shaft and clutch plates 176 between said disksan'd 'a clutch surface 177 chamber 181, aspace'162 within theclutchand aconduit 183 within Aa lock-block 184 'communicating with a pipe 185 leading 1o a spaee186 within the mandrel. A. tubular member 187, whose ends are suitably sealed A against air leakage, surrounds the rear end of the shaft 164 and forms thel chamber 181 which is connected by a pipe 188 with a vacuum or suction air pump, not shown.

The mandrel 163 Vis provided with a series of aline'd perforatio-ns 189, andwhen edge of the sheet or sheets to be woundis placed over 'these perforations the suction created by the air pump connected to the pipe 188 will draw this edge or those edges against the mandrel and cause it to adhere thereto so that the winding of the sheet may be started.

1n step tube winding the perforations 189 only come where they are in a position to be covered by the respective sheets 'to be wound.

The disk 175 has an annular flange 190 slidably mounted on a similar flange 191 on the pulley 174, and these flanges, with the sides" of the disk 175 and pulley 174, :form the space 182. r1`he disk 175 is normally held out of pressure engagement with the plates 176 by springs 192 mounted in the space 182 between said disk and a collar 193 fixed to the shaft 184. When, however, the sheet to be wound has covered the holes 189, the increased suction is communicated to the space 182 and thus causes the disk 175 to move toward the pulley 174 against the action of the springs 192 and thereby press the plates 17 6 between them, and thus establish a driving relation'between the power-driven pulley and shaft 164, thus revolving the mandrel which then winds up the sheet or sheets upon it into the completed tubing, the adhesive beingapplied to these sheets after the first turn around the mandrel. As soon as thel winding operation is completed, the opening of a relief valve 194 breaks the vacuum in the pipe 188 and thereby releases the pulley 174 from driving connection with the shaft, since the springs 192 then move the dist: 175 out of pressure engagement with the clutch plates and the tube is no longer held to the mandrel by suction, so that the moving out and swinging down of the bearing bracket 167 permits the removal of the tube from the mandrel.

ln order to press the newly wound layer upon the previously wound layers, l provide a presser roller 195 disposed parallel.- to the mandrel 163 and jour'nalled on a shaft'190 carried by thel uprights 197 of a supporting frame, which uprights arev vertically slidably mounted in guideways 198 on the frames '162 and are lconnected attheir lower ends by a transverse frame member 199. Tappet blocks 200 carry rollers 201 running on cams 202 on a shaft 203 and are connected to the frame member 199 by springs 204, said blocks having holes Vi205 in which guide screws 206, carried by said frame member, are slidably mounted. Thus, the upward movement of said tappet blocks 200, by the cams, causes an upward movement of the roller 195 toward the mandrel, and the springs 204 permit a downward movement of said roller 195 and its supporting frame as the thickness of the tubing increases.

For turning the shaft 203 to oscillate the cams 202, 1 provide a gear 207 meshing with a rack 208 on the rod v209 of a compressed-air-operated piston 210 werking in a cylinder 211, whereby the admission of air into said cylinder causes a translation of the piston rod 209 in a direction to turn the shaft 203 to bring the high part of the cams 202 under the rollers 201 and thus move the pressing roller to an operative iposition, the air pressure in the cylinder being maintained during the winding operation. t

1n order to stop the mandrel in a feed- Iing position, the block 184 is provided with a locking recess 212 engageable with a locking bolt 213 having a rack face 214 meshing with a gear 215 on a shaft 216 carrying a grooved wheel 217 to which a cable 218 is secured and passes over a part thereof and carries a weight 219 which, when permitted to do so, acts to 'turn the shaft 216 so as to move the locking bolt 213 into a position for locking engagement with the block 184. The release of the bolt 213 is effected by a vacuum cylinder 220 connected by a pipe 221 with the pipe 188 and having a piston 222 working therein with its rod forming part of said bolt'. Thus, when the vacuumline is established by the closing of valve 194 and the sealing of the holes 189, by the sheets, the bolt 213 withdrawn and the clutch is engaged and the mandrel is free to be driven. v

1n order to eii'ect the admission of compressed air to the cylinders 119 and 210, l provide a valve 223 controlling the admission of compressed air from the supply line 224 (Fig. 30) to the .piping 225 and 226. '1`he piping 225 connects with the head ends of each of said cylinders so as to introduce compressed air therein tomove the pistons to eftect the upward movement of the plate .117 and the feed roll 195, while the piping this construction, when the shaft 216 is turned to release the bolt 213 the valve 228 is turned to bring the port 230 into communication with the supply line 224 and the transfer passage2-33 then connects passage 231 with passage 232,

whereupon the adhesive-applying mechanism is rendered .operative and the presser roller 195 is moved to operative position. When the shaft216 is turned ldoy 'the weight 21`land the holt.

2 13 moved to locked position, the valve 228 isturned'to bring the port 231 into com? munication with the supply line 224 andthe transfer passage 233 then connects passage 230; with the passage 232, whereupon the pressure roller 195 is lowered'to an inoperative position and the plate 117 likewise lowered.

The power drive for the shaft 145 is effected by a chain 234 connecting the sprocket' 146 with a sprocket 235 onthe shaft 164 so thatthe drive for the anvil roll 125 is coordinated with the drive of the winding mandrel 163 during the actual winding operation. motor 126 is used only for bringing the sheet to a position to start winding and the clutch 127 for the power drive slips during this operation and thereafter the clutch`fo'r the motor drive slips when the machine drive is in operation. l

The complete control of the machine may' be affected by a single operator from his station adjacent a switch box 236 (Fig. 17) at the winding end of the machine,

where he is within reach ofthe valve 194,

the lever 157, and the lever 167.

The circuit connections for thecontrol of the solenoids 83 and 74 and the motor 126 are' shown in Fig. 30, in which the numeral 237 designates 'the current supply line, and conductor 238 connectedwith one side of this line forms part of a control circuit.

A conductor 239 connects theconductor 238 with a. motor-starting switclr240 and 1s A put in circuit by a push-button switch 241.

This conductor has a coil portion 244. forl moving the switch arm 245 and is connected to the other side of the line.

ated to supply current to the motor 126 from the line 237 through switch arm 245, rheostat 246 and conductor 247.

. A push-button switch 248 connects the *rent returning to the line through a conductor 252. r Closing a switch 248 energizes The drive for the roll 125 from the When the. A'switch 241 is closed the switch 240 is operthe magnet 250 and closes switch 251 so that current from the line passes through a conductor 253 through switch 251 toenergize the coil of the solenoid 74 and returns by conductors 254 and 252 vto the line. This energization of solenoid 74, it will be re` and 252. Closing switch 255 energizes the magnet k257 and closes switch 258 so that current from the line and conductor 253 passes through a conductor 260 andthe switchA 258 to energize the coil of the solenoid 83 Vand returnsby way of conductors 261, 259 and 252 to the line.v This energization of the solenoid`83 causes the release of the feed roll 56 so that it is free to move c down into contact with the sheet from the roll 51.

In order to readily cut the material from the, rollv 51 into sheets .of the desired length, I provide a portable circuit closure that may be placed in any position along the table 84. As shown in Figs 32 and 33, this closure comprises a base 262, a standard 263, a plate 264 carried by said standard, a fixed contact 265 and a movable contact 266 suitably insulated. The contact 266 is mounted on a member 267 y pivoted on the plate 264 and having'a part 268 adapted to be engaged by a knocker 269 also pivotally VA umunted onl said plate and having a de ending finger 27 0 adapted to be struck byt e advancing edge of the sheet, .which causes an upward swing of the finger 270 which in turn causes the knocker 269 to engage the part 268 and move the member 267 to bring the contact 266 into engagement with the contact 265 and then pass by said member 267 and-swing back down over the sheet whose'edge is higher.

and has then progressed slightly in advance of the finger 27 0. This closure is'associated with the shear control circuit by conductors 2 71and 272 and acts in the same way as the switch to produce a brief ener ization of the solenoid 74 to Withdraw pinA 5 and permit one operation of theshear 43 and its position 266, set at the desired position on the table 84, the operator, at his station, depresses push-button 255, closing the circuit to the solenoid 83, causing' feed roll 56 to `move down to engage the sheet7 and the power of the machine being on, Vlhe sheet is moved ulongz,r the table until its advancing edge strikes the lingers 270 causingthe contact 266 to engage Contact 265, thereby energizing' the circuit for the insgnetie switch 250 and hence energizing the solenoid 74, causing the sheur 43 to fdescend and cut oil the sheet be tween it and the fixed blede 42, and during theculting; operation causing the disengagenient of the feed roll from the-sheet7 in the manner previously described. The'operetor then brings the cut sheet orvvurd sind places its advancing edge between the rolls 107 and lO of the adhesive-applying nicchie nism and the sheet is then carried by the belts 105 over the plete lil', 'thence over the delivery belts 106 and between the guide 108l end roller 105 to the table 124, along which it is fed by 'tbe movement el the belts l0@ until its advancing edge Vcun'ics over the zinvi. roll 125, and its forward edf-e is then moved to bring it between the Winding; mandrel 16S' und the presser roll @ne set of cutters 147 having been depressed so )that es the sheet passes over the reir 125, strips lll are cut out of it and the @beet becomes series of sheets of lesser Width which ere sirnultsq neously wound up on the mandrel 463., lis

' previously explained9 during die starting olf the winding operation the motor 126 is put into operation by the closing of the push. bus-y ton switch 241 te provide preliminary'feed ol' the sheet pest the slitters er cutters bring the advancing es into position ed jacent the holes 189 e mandrel 163. soon as the advancing' edge or edges9 covers these holes the vacuun'a. line l88 (the valve 184 being closed) causes che ioclt bolt 213 to be Withdrewn; causes the clutch.3 including drive pullev M74, to tlirewn in; end hence e. Winding cil the sli Simultaneously with bolt 213 the valve compresse-d sir ro finders 2l@ end l causingA the 'presser ice. pressirLO engagement being Wound en the ing the ll?9 vf belts 106 te loe Inov` hesive-epplying roll 8 rell 'te deposit e com the sheet. as it passes its suppert.

leyer el is up en hesive enelied to it? the mandrel M3 pim i o the pla-te end the f applying mechanism the circumference el die f te accommodate me l cpleced from that of the previously un.

` the spacing of the adhesive-applying meehnism, While not shown in detail7 is also Inude udjustuble te accommodate different spec-- ings between these units. As seen es the sheet or sheets have been wound up on the mandrel the operator opens ythe vulve 194 und this, es previously explained, releases the locking bolt 213 und causes s releuse or' the clutch lid-175 und operates the vulve 223 so es to cause (he 'compressed sir le be introduced. into the opposite ends ol cylinders 210 end 1.19 from that previously dcscribed., thereby respectively depressing the pressing; relier l95 and the supportu ineludthe plete 117, rolls 86 und belts lll@ et the sdliesive-u pl},fing mechanism. Under these conditi-ens the tubing muy be teken off from the mandrel 163 on the release sind turning1 down of the bearing 167.

llt will be ebserved that the anvil rell is spaced relatively short distance lroin point which the sheet or sheets is or ere led in between the Winding rcsmlrel end pressing rell 195, end ti-- dis- .,.ce is se close that the sheet materiel doos lieve c chance to buckle or slip from` the time it lee-ves the cutters 147 und is iv-sund up on the mandrel. This method of cuttingthe materiel immediately adjacent the insndrel enables ine to produce e step-'ufeund shell, which is shown in 3f and 3T. Winding this type of shell my method is es follows: @ne of eeeh pair el the sets el cutters 14"? (Fig il) is depressed te ccoperste with. the anvil 125 end as the "l .misses between them it is eut into e eets et lesser Width which are siYP sly wound up on the man( rel, nred thickness, thereby producing; *l .6 el the shell. Then there cut'f raised and other cutters of euch u; '-i esd cooperate with the un hei` sheet passes between these is eut into series el sheets e;

hs which. Wound up on the lest i er u revieusly Wound 276. to the devlnness, termine e part 277 owing-te 'tn-e spacing or the cutters? is part 27@ so that the linished shell, sheen in llig. 37; ues en annuler internal shouldered mei-tion 2.7@ one end to lelie lhe end the container end un end pei-lien ci the shell with it shoulder 29,0 ,vhice= tsl-:es the siding` el the vcover of the container. Ilie various luycrs of the sheet niutcriiil eline themselves en the Winding mandrel us the sheet is not permitted te buckle or bend ef less th'clness thun the nmiu body la after leaving the cutters 147. By-'using a number ot' sets of' cutters on a relatively wide sheet of material, I am able, by thisV method, to produce la plurality of stepn'ound shells on the mandrel 163 at one time, as shown in Fig. 36.

I desire it to be understood that this invention'is not to be limited to any particular form or arrangement of parts except in so .far as such limitations are specified in the claims or necessitated by the prior art.- IVhat I claim as my invention is:

t l. The method of producing step-wound shells, in multiple, which consists in cutting the sheet into a series of sheets of lesser width, Winding these sheets upon a mandrel into a series of tubes, then cutting another sheetinto a series of sheets whose edges are displaced from the edges ofthe previously wound sheet, and Winding these sheets upon the previously Wound tubes to produce .a

. series of finished step-Wound shells, thecutting of the sheets being donc immediately adjacent thev Winding mandrel to prevent buckling of the sheets after cutting and insuring the aligning of the adjacent layer.; of each tubular part of the shell.

2. In a tube-Winding machine, the com-v bination with a Winding mandrel. of'cutting mechanism disposed adjacent thereto, .1ncluding a series of cutters arranged 1n spaced pairs, means for moving one of each pair ot cutters intocooperative relation with the sheet to cutthe same prior to its being Wound on the Winding mandrel, means for raising the first-mentioned set of cutters to bring the othergcutters of each pair into operative relation with the sheet prior to its being Wound on the mandrel, whereby some of the sheets Wound on the mandrel are displaced relative to the others to form a step- Wound shell, means for pressing the layers of adjacent sheets together as they are Wound up on lthe mandrel, and means yfor applying adhesive to the sheets prior'to winding aroundthe mandrel.

' 3. In a tube-winding machine, the combination with an adhesive-applying mechanism, including an adhesive-coating roll, a sheet-supporting means movable to bring the sheet to a positionto receive a coating of adhesive from Said roll, a'winding mech# anism including a Winding mandrel and a pressing roll, and ,'fluid-pressure-operated mechanism for simultaneously applying and releasing said pressing roll and said sheetsupp'orting means. i

4. In a tuhewinding machine, the combination of a mandrel upon which the sheet is wound, a pressing roll cooperating with .said mandrel, said mandrel having perforations and a suction space connected to a suc@ tion line-wherein the closure of said perforaiions by said sieet causes suction to hold the advancing edge of the sheet to the man' drel, mean-3 for locking the mandrel in-a position to receive the advancing edge of the sheet, including a locking member, a compressed-ainoperated n'iotor for moving the i pressing roll to operative position relative 70 to the mandrel, and valve mechanism controlling the supply of compressed air to said5 motor operable on the operation of said lockino member. v v

. o. In a tube-winding machine, means for feeding material from the supply roll to a cutting mechanism, cutting4 mechanisn'i for cutting the material into sheets of the desired length, adhesive-applying mechanism for coating thev cut sheets, slitting mechanism for dividing the coated sheet into a plurality of sheets of lesser width, winding mechanism receiving the sheets from thelast-mcntioned cutting mechanism to Wind them intol tubing, an operators station adjacent the Winding mechanism, and lmeans for controlling' the feeding meehanismand the first-mentioned cutting mechanism from the operators station.

6; In a tube-Winding machine, the combination with the tube-Winding mechanism including a winding mandrel and means for applying adhesive to the material prior to Winding, of means for cutting the material to the desired length, and an electric control for said cutting means including switch mechanism actuated by the advancing sheet material to render said cutting means operative.

-7. In a tube-Windingmachine, the combination with the tube-Winding mechanism including a winding` mandrel and ymeans for applying adhesive to the material' prior to Winding, of means for cutting the material to the desired length, an electric control for said cutting means including switch meehanism vactuated by the advancing sheet material to render said cutting means opera-V tive, feed mechanism associated with the cutting mechanism, means for rendering said feed mechanism inoperative during the operation of the cutting mechanism, and an electric control for said feed mechani-sml including -a switch operated by the operator from'a position adjacent the'wind-l ing mechanism.

8. In a tube-Winding machine.l the com. bination with the tube-'Winding mechanism, the adhesive-applying mechanlsm, the cutting-mechanism and the feeding mechanism associated with the cutting mechanisrm'of electrical control for said feeding and cnting mechanisms operable from a position adjacentl the Winding mechanism, fluid-pressure-operated means rendering said adhesive-applyingmeehanism operative, and means actuated by the operation of said tube'wilnding mechanism for rendering said fiuidressure-operated means operative.

`9. n a tubewinding machine, the com- I tl ing operation.

BY l

bination of a revolublc mandrel provided with suction, sheet-holding means, means for locking the mandrel 1n a predetermined feed position, driving means for the mandrel including a suction-operated clutch thrown in by the attachment of the sheet to the mandrel, and suction-operated means for releasing said locking means consequent to the attachment of the sheet to the mandrel.

10. In a tube-winding machine, the combination with an adhesive-applying mechanism, including an 'adhesive-coating roll,

a sheet-supporting means movable to bring the sheet to a position to receive a coating ofvadhesive from said roll,` winding mechanismincluding a winding mandrel and a 'pressingwrolh means including a locking ymember for' holding the mandrel in a predetermined position, a compressed-air-operated motor for moving the pressing roll to operative position relative to the mandrel,

a compressed-air-operated motor for mov,

the dividing mechanism from said povverV drive during the Winding'operation, and an electric motor operatively connected to drive said dividing mechanism pripr to the wind- 12. In a tube-Windin machine, the combination with the Win ing mechanism, of means for supplying a plurality of sheets to said Winding mechanism, comprising slitting mechanism for cutting a single sheet into a plurality of sheets of lesser Width, said slitting mechanism comprising a plurality of cutters, each cutter comprising a knife member and its support, and a cani shaft provided with cams cooperating with? said supports for selectively {raisingorlovvering said cutters, and means under the con;

trol of the operator for turning said shaft to operate said cams.

It- In a tube-Winding machine, the comhina-tion of tube-vvindingv mechanism including a winding mandreland a presser roll. associated therewith, of suction-operated, sheet-holding means associa-ted with said mandrel, means for driving the mandrel automatically rendered Aoperative by the placement of a sheet upon the mandrel, and means automatically rendered'operahle substantially simultaneously with the drive for the mandrel for moving said pressing roll to an ope Lative position against the sheet onthe mandrel.`

cut into a' number of sheets oflesser Width.,

and Wound up on the Winding mandreLsaid 6,5 14, In a tube-winding machina-"the (com-j bination with a Winding mandrel, ot slitting,

slitting vmechanism comprising .adjustable Y cutters whereby a second set of tubes vis;v superimposed upon the first set'lof tubes s. v Wound on the mandrel but in a lengthwise offset relation relative thereto to form a plurality of step-Wound shells, means vfor .applying adhesive to thek material prior to winding it on the mandrel, and means ,for pressing' Asuccessive layers of the material together during the Winding operation.

1.5. In a tube-win iiing machine, the com bination with a Winding mandrel, of cutting mechanism disposed adjacent "thereto in-Y cludmg a series of cutters arranged in` spaced pairs for cutting the sheet'rinto plurality ot spaced sheets prior to their be,-

ing Wound on the Winding mandrehand means associated `with said cutters to delect that portion of the cut sheet between the spaced sheets downwardly and out et the Winding plane of said mandrel.

16. In a tube-ivinding machine, the combinatioii with a Winding mandrcl` of cutting mechanism disposed adjacent thereto including` a Series oi cutters arranged in spaced pairs for cutting the sheet `Ainto a plurality ofspaced sheets prior to? their bemg Wound cn said mandrel, means for raising und lowering the cutters,` and roller associated with the cutters and nfiovingr up and down therewith and disposed in' ad vance ci? and to one side of the cutter with which 'it is associa-ted and below .the pianeofthis cutter to deflect the cut out-portion of the sheet downwardly and out of the Winding plane ci? said mandrel.

In testimony whereof, I my signature.

lili?

Images