US2579907A - Paper container lining machine - Google Patents

Description

Dec. 25, 1951 R. s. CONDON 2,579,907

PAPER CONTAINER LINING MACHINE Filed April 25, 1949 e Sheets-Sheet 1 Fig.2.

Fig.1. 43

gwumvloo Boberf 8. Condom ATTORNEY-9 Dec. 25, 1951 R. s. CONDON PAPER CONTAINER LINING MACHINE 6 Sheets-Sheet 2 Filed April 25, 1949 1 l 9 w J 9 3% ATTORNEYS Dec. 25, 1951 R. s. CONDON PAPER CONTAINER LINING MACHINE 6 Sheets-Sheet 5 Filed April 25, 1949 ATTOR N EYS D 1951 R. s. CONDON PAPER CONTAINER LJINING MACHINE Filed April 25, 1949 6 Sheets-Sheet 4 Fig. 10.

n m N mn mm m& A W3 5 I r k M o I B h B M/ J 5 E Dec. 25, 1951 R. s. CONDON 2,579,907

PAPER CONTAINER LINING MACHINE Filed April 25. 1949 e Sheets-Sheet 5 INVENTOR. 30b??? 3. Cond A7TOR NEYS 1386- 1951 R. s. CONDON PAPER CONTAINER LINING MACHINE 6 Sheets-Sheet 6 Filed April 25, 1949 r kbO Q 801% E55: @2633 wmmim EKG kbO QQMEW I N VENT OR.

Haber) 3. Condon, Y n- &1 13152 Patented Dec. 25, 1951 PAPER CONTAINER LINING MACHINE Robert S. Condon, Rutland, Vt., assignor to 0011- tinental Can Company, Inc., New York, N. Y., a corporation of New York Application April 25, 1949, Serial No. 89,550

20 Claims.

The invention relates generally to the artof V lining paper containers and primarily seeks to provide a simple and eificiently operable machine adapted for forming and shaping corrugated liners from a continuous strip of liner material and inserting the formed and shaped liners into serially presented paper containers.

Cup-like containers formed of paper to comprise a cylindriform body and a bottom or end closure and adapted to be covered by a closure of the slip-on or other type are well known and in widespread use in the packaging of confections, foodstuffs and the like. In the packaging of some products it is desirable that a. liner be placed in each container before the products to be packaged are placed therein. In some instances these liners are formed of corrugated paper in order to provide a cushioning or marking element engageable with the packaged product. The formation and insertion of such liners, in whole or in part by hand, is a tedious, time consuming and relatively expensive operation, and heretofore no practical machine has been devised for mechanically forming, shaping and inserting such liners. It is a purpose of the present invention to provide a novel machine structure embodying means for feeding liner material from a supply roll, means for corrugating the liner material, means for cutting said material into proper liner lengths, means for serially presenting containers at a liner inserting station, means for shaping each corrugated liner length into'a cylinder opposite a container at said station, and means for inserting each shaped liner into a container presented at said station.

Another object of the invention is to provide a machine of the character stated in which the means for corrugating the liner material also serves as means for drawing said material from the supply roll. Another object of the invention is to provide a machine of the character stated in which the corrugating means comprises a pair of cooperating continuously rotating rolls.

Another object of the invention is to provide a machine of the character stated in which the continuously fed strip of liner material is corrugated as it is fed and is severed into corrugated liner lengths by an oscillating shear, in which each said liner length is wound into liner form about a rotary mandrel, in which containers to be lined are serially presented at and released from the lining station by an oscillating escapement means, and in which there is included a reciprocable pusher means for pushing. each wound liner into the container at that particular time presented at the lining station.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claims, and the several views illustrated in the accompanying drawings.

In the drawings:

Figure 1 is a vertical longitudinal sectional view illustrating the invention, the mandrel and the container feed being shown in elevation.

Figure 2 is a vertical cross section taken on the line 2 -2 on Figure 1.

Figure 3 is an enlarged fragmentary longitudinal section illustrating a liner in the process of being pushed into a container.

Figure 4 is an enlarged fragmentary vertical cross section taken on the line 4-4 on Figure 3, the cutting devices having just completed the cutting of a liner length.

Figure 5 is an enlarged fragmentary vertical cross section taken on the line 5-5 on Figure3, the escapement being shown in position for holding a container in position to receive a liner in dotted lines and in position for releasing a lined container and supporting the following containers in full lines.

Figure 6 is an enlarged fragmentary vertical cross section taken on the line 6--6 on Figure 3.

Figure 7 is a vertical cross section taken on the line 1-1 on Figure 1.

Figure 8 is a vertical cross section taken on the line 8-8 on Figure 1.

Figure 9 is a horizontal section taken on the line 99 on Figure 1.

Figure 10 is a horizontal section taken on the line Ill-l0 on Figure 1.

Figure 11 is a fragmentary horizontal section taken on the line ll-l I on Figure '7.

Figure 12 is a diagrammatic view illustrating one manner of connecting the machine with a current supply, a safety switch being included in the circuit.

Figure 13 is a perspective view illustrating the invention.

Figure 14 is an enlarged fragmentary longitudinal section illustrating the yieldabile end or pusher portion of one of the pusher bars, the same being shown as being displaced by contact with the liner during retraction of the respective bar.

Figure 15 is a diagram illustrating the timing of the machine operation, or in other words the timing relation of the strip cutting, strip wind 7 base portion including a pair of parallel longitudinal base beams which are connected at one end as a't B, and at the other end by a transverse base beam 1. A channel beam 8 also connects across and above the longitudinal beams 5 near the base beam 1 and to it are secured par allel spaced frame uprights 9 and I0. 'An'int'e'rmediate upright I l is secured as at i2 to the upactuator lever 45 is pivoted intermediate its ends as at 46 on the shelf 13, and at its lower end is equipped with a roller 4'! which engages in the groove 29 in the before-mentioned pusher bar shifter sleeve'28. Thus it will be apparent that upon rotation of the cam 42, the groove 53 therein will be effective to rock the lever 25 and serve tc project and retract the pusher bars 26 at the proper time.

right 10 and extends upwardly inparallel spaced relation to the before-mentioned *rrametprrght 9 in the manner clearly illustrated in Figure 1 'of the drawings. The uprights 9 and H are held in rigid spaced relation near their upperextremities by a spacer beam or shelf l3"which'is secured between them. An angle l4 secured to said spacer beam serves as an upper anchor for a pair of parallel diagonal brace supports '15 which are anchored at their lower ends to 'the longitudinal base beams 5. V

The diagonal base supports 15 form a trunnion support as at lt for a tape supply roll l1, an anti-friction support 18 preferably being provided as a part of said trunnion bearing.

If desired, spacer rods I9 may be provided as additional means forsecuringthe "desired spaced relation of the upper end extremities of theframe uprights 9 andl I, p I q p A mandrel shaft 20 is provided and is rotatable in a bearing 2| provided therefor in the frame upright 9, and inja sleeve bearing ,22"suppor'ted by the upright! I. q A mandrel 2 3 is secured to one end of the shaft'2ll; and a hub extensioni lp'f this mandrel provides the bearing for th'eparticular end of the shaft '20 within the beforementioned bearing sleeve 22. It will 'be apparent by reference to Figures ;1,"3' and'e of the drawings that the mandrel 23 is radially and longitudinally slotted as at 25 to receive the longitudinally reciprocable liner discharging pusher bars 26, four of said bars being shown in this particular disclosure of the invention. The bars 26 are removably secured "as at 2! to a sleeve 28 which is longitudinally slidable on the mandrel "shaft 20. It will also be noted that the sleeve 28 is equipped with an annular groove 29, and the purpose of this groove willbecome apparent as the description progresses- Flt will also jb'e'noted by reference to Figures Band 4 of the drawings that the mandrel 23 is equipped with aplurality of rubber strip inserts which project from v the periphery of the mandrel intermediatelybf the positions "of the pusher baraccommodating slots 25., The rotatable mandrel is surrounded by a cylindrical guide 3t which is supported as at '32 on the frame upright-ll. It'will'b'e apparent by'reference'to Figure 4 that the guide extends for the limited width entrance at '33 which defined at one side limit by a guide or stripper V A camshaft '39 is provided and "isrotatabl e. in e.

a bearing 40 'iilthe rrameupright s and a"b'a'r- 'under which the tape 59 passes.

K rhe-csm nz'siso has a peripheral recess 8, and a cam finger-fits projects endwise therefrom. The purpose of these parts will be described herein'after. .Therei's a sprocket 5t affixed to cam shaft 39, and this serves as a part of the means through which rotation is imparted to the shaft and the cam 42 thereon. V V

A corrugated-roll 51 also is securedto the cam shaft 39, and this roll meshes with a cooperating idler corrugated roll 52 which is freely rotatable on a Spind1e53 secured in a pair of arms 54 mounted-on'the shaft 39. Adjustable backing screws 56 are threaded into receiving cores in the arms 54 and these extend into longitudinal slots in the arms through which the endsof the spindle 53 extend and serve as positioning means for said spindle. A bracket 5'! secured as at 58 to the frame upright ll serves as a support for the free endsof the arms 54.

The linermaterial strip or tape '59 is drawn off the supplyroll I? over stroller- 60 carried at the free end of a tensioner arm 6| which is pivoted at 62 on the frame upright H. The arm BI is 'yieldably lifted by an anchored spring 63 and is equipped with "an intermediate 'roll 84 After passing under the intermediate 'r'ollM the tape 59 or strip of lining material passes between the cooperating corrugating rolls 5! and 52 and throughfree guides 66 which are loosely mounted in and suspended from grooves in the rolls 5| and 52 as at B1.

A fixed cuttermembe'rfiil is secured as at *69 on the frame upright II and is equipped with a horizontally disposed cutter edge '66. The fixed "cutter edge 10 is engageable by a movablecutter 'ed'ge H carried byan oscillatable cutter T2 which is pivoted as at l3 between the lower ends 'of "the actuater" arms 14 which are secured at their upper ends toa rock shaft 15. The rock shaft 15 is rockably mounted in a bearing 16 on the frame gagement in shearing contact relationwith' the fixed cutter edge ill, and an overlapping-guide lug l9 engageable with the fixed cutter member serves to maintain the proper shearing relation of the cutting edges in a manner assuring against overlapping and jamming of said edges. A crank arm secured on the rock shaft 55 is equipped with a roller which engages with the periphery of the cam 42 in position for dropping into the cam recess 48 once during each full rotation of said cam. Another crank arm 32 is secured on the rock shaft 15 and is connected with anchored 'springswhich constantly tend to force the roller 8! against the cam and into the cam recess 48. As the crank arm carried roller 8! drops into the recess 48 the springs 83 will impart inward swingingmove'ment to the arms 14 and ca'us'eth'e indvable' cu'tting'edge "1 l "t'o'erigage in'shear'ing rethe r lati'on with the' stationary cutting edge I for cutting off a corrguated liner length, it being understood that as the strip or tape 59 is drawn downwardly through the corrugating rolls and 52 it is corrugated thereby and passes downwardly between the pendant strip guides 66. ,Since the rolls 5| and 52 rotate continuously,

there will be a limited amount of buckling up 84 and is equipped with spaced, belt receiving grooves placed near the ends thereof. A cooperatinglower idler pulley B8 of like construction is disposed just above the position of the mandrel in the manner clearly illustrated in Figure 4 and is rotatably mounted on a stud shaft 89 which is secured as at 90 on the frame upright II. Relatively short belts 9| take over the upper driven pulley 8! and the lower idler pulley 08, being disposed in the grooves thereof so as to bear spaced parallel relation one with the other.

A lower driven pulley 92 constructed in like manner asare the previously mentioned pulleys is provided and disposed slightly above and to one side of the mandrel in the manner clearly illustrated in Figure 4. The pulley 92 is secured on a shaft 93 which is rotatably mounted in the hearing 94 provided therefor in the frame upright 9, and in the bearing 95 provided therefor in the frame upright II. The lower driven pulley 92 cooperates with a similarly constructed upper idler pulley 95 which is mounted beside the previously described upper driven pulley 81 on a stud shaft 97 which is secured as at 98 on the frame upright II. Relatively long belts 99 take over the upper idler pulley 9t and the lower driven pulley 92, being mounted in the grooves in said pulleys in position for Opposing and cooperating with the previously described relatively short belts 9I.

An electric motor I00 is suitably supported on the base framing and serves to drive the power out-put shaft IOI through a suitable speed reduction gearing generally designated I02. A driver sprocket I03 is secured on the driver shaft I III and drives a chain I04 which serves to impart rotation to all of the rotating parts of the machine. The chain I04, as viewed in Figures 1 and 8 of the drawings, passes upwardly behind the lower driven pulley sprocket I05 on the shaft 93 for driving the lower driven pulley 92, thence over the cam shaft sprocket 50 for driving the cam shaft 39, the cam 42 and the corrugating rolls 5| and 52, thence downwardly behind the upper pulley shaft sprocket I06 on the shaft 84 for driving the upper driven pulley 81, thence downwardly in front of the tightener sprocket I0'I which idles over the stud I08 adjustably mounted as at I09 on the frame upright 9, then behind the sprocket 38 on the shaft to rotate the mandrel 23, and finally about the before mentioned driver sprocket I03.

The frame wall 31 forms a part of a paper container chute which is made up of said frame wall, two side walls I I0 and III and a front wall H2. The front wall II2 preferably is hinged as at I I3 so as to be swingable away in the manner indicated in Figure 12 so as to make the interior of the chute readily accessible. The paper containers which are to be lined are fed into the chute structure by any suitable conveyor means H4, and the lined-cans are fed away from said chute structure by any suitable feed away conveyor means II5.

An escapement lever structure H6 is secured on the rock shaft III which is rockably mounted in the bearing I I8 provided therefor in the frame upright 9, and in the bearing I I9 provided therefor in the frame upright II. An actuator lever I20 also is secured on the rock shaft I I1 and projects upwardly therefrom into position for being engaged by the actuator pin 49 projecting from the end of the cam 42. The escapement lever H6 is equipped with an upper escapement pin I2I and a lower escapement pin I22, said pins projecting outwardly from said lever, or to the right as viewed in Figure 1, and. being disposed to operate in and through slots I23 provided in the frame plate 31. It will be apparent that the escapement lever structure H5, I20 will be shifted once for each revolution of the cam 42. When the escapement pins are positioned as shown in Figure 2 of the drawings the pin I22 will cooperate with the side walls III] and III of the chute structure in supporting the lowermost paper container in axial alignment with the mandrel 23, or in other words are positioned for receiving a corrugated liner pushed longitudinally from Without the annular space between the exterior of said mandrel and the interior of the cylindrical guide 3I. Obviously the remaining paper containers in the chute will be supported upon the lowermost container which rests upon the escapement pin I22. When the escapement lever is shifted to the left as viewed in Figure 2, the pin I22 will be displaced from its container supporting and aligning position and will free the lowermost, then lined container and. permit it to fall into the feed away conveyor II5. This shifting of the escapement lever to "release the lined container will bring about a moving of the upper escapement pin I2I to the left, or into position for intercepting and supporting the second and the overlying remaining containers in the chute, and after shifter pin 49 moves out of contact with the actuator lever I 20 the escapement lever will be permitted toreturn to the position illustrated in Figure 2 in which the upper escapement pin I2I will be displaced and the lower escapement pin I22 will be returned into position for intercepting and supporting the containers in the chute structure with the lowermost container accurately aligned with the mandrel as aforesaid. It will be apparent by reference to Figures 2 and 13 of the drawings that the anchored spring I24 connected with the actuator lever I20 constantly tends to hold said lever in the position illustrated in Figure 2.

In Figure 12 of the drawings there is illustrated one simple manner of connecting the motor with a power source, a safety cut-out switch being included in this connection. In this illustration the motor circuit line I 25 is connected with one power line I26 and has a switch I27 spliced therein through which the machine can be manually controlled. The circuit line I25 also connects with a safety switch I28 which is normally closed whenever the hinged chute structure door H2 is closed. For this purpose the switch I28 is of the normally open type and the hinged chute door H2 is equipped with a contact member I29 which engages the contact of the switch I 28 and holds the same in the closed conditi n WPtPFYFPz g 9 1!" ano mn t properly closed-position.

The switch I 2 8 1s con nected through acircuit line (30 with the motor Hill which is in turn connected through the circuit line 13-! with the power line l32.. It will be apparent by reference to Figure '12 that whenever the hand switch 4211s closed and the chute structure I2 is closed the circuit through the motor 138 will becbmyiltedand the parts of the 'rnachine will be incperation. Whenever the hand switch 127 is opened-or the=hingedchute "donut-12 is opened-the'circuit through the motor will be brokenand the operation oi-the machine will be stopped. 'It' is to be understood that the strip of liner material 59 is as wideas the height of the can body intended to be linedthereby. As the strip is drawn downwardly between the cor'rugating 'rolls fi'i andBZ it is corrugated thereby and fed downwardlybetweenthe-guidcs 66. The parts are so timed that each time the crank arm 'car-' ried roller 8| 'drops'into the 'recess'4'8 a length of the liner material will have passed through the corrugating rolls 5! and 52 and below the shearing 'edges'i'e and 'H suflicient to form a container'liner and said shearingedges will come togetherto shear off this liner length. The sevcred liner length is'conveyed downwardlyby the cooperating-"belt sets 9| and "Qeand is directed into-the guide entrance 33 in'the manner illustrated in Figure '4. The continuously rotating mandrel "23 and the rubber inserts 30 thereof cause the liner to be wound about the mandrel within the cylindrical guide?! i, and as the formation of the" liner cylinder is completed the cam groove functions to shift the lever 45 and cause the pusher bars 26 to displace the shaped liner longitudinally'in the manner illustrated in Figure 3 andtinsert the-same into the container aligned opposite the "mandrel by the escapement 'pin' I22. 'Ihepusher bars 2'6 are then promptly retracted so that'the next liner strip can be directed into the shaping guide and about the constantly rotating 'mandrel', and the escapement devices function in the manner previously described to release the. lined vcontainer into the feed-away conveyor I I5 and momentarily suppcrt'the remainder of the supply of containers, and then to shift back to the position'illustrated in Figure 2 to again support" the lowermost container now aligned withthe mandrel f or'receiving the next shaped and longitudinally displaced corrugated liner.

As before statedgthe rotation of the mandrel, the cam'dl, the corrugating rolls 5! and 52 and the driven pulleys 81 and 92 is continuous,

and the machine functions to shape and insert the liners with greatrapidity.

The particular manner of arranging and operating the parts as herein disclosed provides advantages in the way 'of simplicity in structure and accuracy and rapidity in operation. For example, the employmentbfthe rolls"5l and 52 as both feeding and corrugating means serves not only to-simplify the structure "but also to proide for smooth'and positive feeding of the strip. The knife i! operates intermittently to cut proper liner lengths from thecontinuouslyfe'd strip, and the rolls 5| and'fiz' and" the guides 66 are so arrangedwith relation to t le'cutting devices that the non-cut and feeding strip length abovethe just the right length of strip extension to be severed in the formation of a proper liner" length. In the diagram Figure 15 the space between 1 the dot and dash lines AA, B-B represents.

the 360 of circumference of the rotary'cam 42 which-serves to actuate the cutting edge H, the

liner inserting pusher bars 26'and the escape.

ment lever H5, and the line I33 extending across between said dot and dash lines represents a development of the-actuator groove 43 of-sai'd cam'and the timing of the liner pusher bars 26. The line 135 represents a development of the escapement operation timing, the line I35 represents the timing of the strip feeding and winding, and the line I36 represents the timing of thestrip cutting. By reference to this simple diagram it-is possible quickly to determine the eooperative relation'and timing of the several operating parts, the formation and insertion of the liners.

It will be apparent from the diagram in Figurel5 that the winding of each liner strip about the mandrel is commenced-before the retraction of the pusher bars 26 is completed. This is made possible by providing each pusher bar 26 with a "pivotally mounted pusher end portion26 Each said end portion is normally held in its projected or effective position shown in Figure 3 by a spring rod equipment 26b, but is free to yield in the manner indicated in Figure l lwhen the bars are being retracted through a liner being wound about the mandrel and will again spring out behind said liner to the Figure '3 position as soon as it is fully retracted or clear of said liner.

lvlore, specifically, in operation, the bar-s26- on the injection stroke push the formed-liner-ofi the mandrel into the waiting can body. Just as the bars commence to retract, at a slower rate, thanext corrugated strip reaches the mandrel and is gripped between the rubber inserts 30 and the guide wall 3!. The retracting bars slide underneath the liner and the spring urged end portion 26a of each bar is depressed as it con tacts the edge of the liner as shown'in Figure 14 and stays depressed while passing under'or along the corrugations until fully retracted, .Wh'en'the spring rod equipments 2% will serve to snap said bar end portions to their raised or projected position behind the liner; After a short dwell the bars 26 are again advanced to push the formed liner into the next waiting can body as shown in Figure 3.. While one form of the invention has been shown for purposes of illustration, it is to be clearly understood thatvarious changes inthe details of construction and arrangement of parts may be made without departing .from the spirit and scope of the invention as defined in..the ap pended claims.

I'claim: '1. In a machine of the character described, means for directing av strip ofliner material from a supply roll, means for corrugating the strip of liner materiah. means for'cutting'said strip of corrugated liner material into proper liner lengths, means for serially presenting containers at a liner inserting station, means for shaping each corrugated liner length into a single walled cylindrical liner opposite a container at said station, and means for inserting each shaped liner into a container presented at said station.

2. In a machine of the character described, means presenting a continuous strip of liner material, means for cutting the strip into liner lengths, cooperating corrugating rolls for continuously feeding the strip to the cutting means and for corrugating the same'as it is being fed, means" for serially presenting containers at a liner inserting station, means for shaping each corrugated and cut linerlength into a single walledcylindrical liner opposite a container at said station, and means for inserting each shaped liner into a container presented at said station.

3. In a machine of the character described, means for directing a strip of liner material from a supply roll, means for corrugating the strip of liner material, means for cutting said strip of corrugated liner material into proper liner lengths, means for serially presenting containers at a liner inserting station, guide means for confining each cut and corrugated length of liner material in the form of a single walled cylindrical liner opposite a container at said station, opposed belt means for presenting each cut and corrugated length of liner material to said guide means, and pusher means for pushing each cylindrical liner into a container presented at said station.

4. In a machine of the character described, means presenting a continuous strip of liner material, means for cutting the strip into liner lengths, cooperating corrugating rolls for continuously feeding the strip to the cutting means and for corrugating the same as it is being fed, means for serially presenting containers at a liner inserting station, guide means for confining each cut and corrugated length of single walled liner material in the form of a cylindrical liner opposite a container at said station, opposed belt means for receiving the liner lengths as they are cut and presenting them to said guide means, and pusher means for pushing each cylindrical liner into a container presented at said station.

5. A machine structure as defined in claim 1 in which the liner shaping means includes a rotary mandrel and the liner inserting means includes pusher devices rotatable with and slidable relative to the mandrel and engageable behind liners wound about the mandrel for pushing them oil the mandrel and into containers aligned to receive them at the liner inserting station.

6. Machine structure as defined in claim 1 in which the liner shaping means includes a rotary mandrel and a guide member at least partially surrounding the samev in spaced relation, in which there are included opposed belts for feeding the corrugated liner lengths from the cutting means to the guide means, and in which the inserting means comprises pusher devices engageable endwise with each liner in the space between said mandrel and guide and movable endwise with relation to the mandrel and the aligned container.

7. Machine structure as defined in claim 1 in which the shaping means includes a mandrel and the container presenting means includes a chute structure throughwhich the containers gravitate in processional order and an oscillatable escapement means having at least two alternately effective fingers one of which is effective to support a container in the bottom of the chute in alignment with the mandrel with the following containers resting thereon and the other of which is effectivewhen said one is moved away to support said following containers as said bottom container is released and permitted to fall away by removal of said one finger.

8. Machine structure as defined in claim 1 in which the power for driving the several means is derived from an electric motor, in which the container presenting means includes a chute structure through which the containers pass and which includes a removable door through which access may be had to the interior of the chute, and

in which'the motor is served by a power circuit including a switch which is actuated by movement of the door so as to be closed whenever the chute door is properly closed and which is opened when said door is removed or improperly closed so as to open the circuit and discontinue operation of said motor.

9; In a machine of the character'described, a continuously rotating mandrel, a guide surrounding the mandrel in spaced relation but for an entrance of limited width into said space, a pair of continuously driven cooperating corrugating rolls, means for directing a continuous strip of liner material between said rolls, shearing means for cutting the strip into liner lengths as it is fed between and corrugated by said rolls, opposed belts for directing the corrugated and out liner lengths into the guide entrance to be wound into' cylindrical form about the mandrel within the guide, means for serially placing containers in alignment with the mandrel and guide, and pusher means for pushing each shaped liner out of the guide and into a container presented in alignment therewith.

10. Machine structure as defined in claim 9 in which there is Provided a single continuously rotating cam and means for actuating said shearing means and said pusher means from said cam in suitably timed relation.

11. Machine structure as defined in claim 9 in which there is provided a single continuously rotating cam and means for actuating said shearing means and said pusher means from said cam in suitably timed relation, and in which the mandrel, the rolls and the cam are driven through sprocket and chain connections with all sprockets engaged by a single driving chain.

12; Machine structure as defined in claim 9 in which the container placing means includes a chute structure through which the containers gravitate in processional order and an oscillatable escapement means having fingers alternately placeable "for supporting all containers in the chute with the lowermost in alignment with the mandrel and'guide or for, releasing said lowermost container and supporting those following it, and'in'which there is provided a singlecontinuous'ly rotating cam and means for actuating said shearing means, said pusher means and said escapement means from said cam in suitably timed relation.

13. Machine structure as defined in claim 9 in which the container placing means includes a chute structure through which the containers gravitate in processional order and an oscillatable escapement means having fingers alternately placeable for supporting all containers in the chute with the lowermost in alignment with the I mandrel and guide or for releasing said lowermost container and supporting those following it;

connections with all sprockets engaged by a single driving chain. a

14.. Machine structure as defined in claim 9 in which the container placing means includes a i chute structure through-which the containers gravitate in processional order and an oscillatable escapement means having fingers alternately placeable for supporting all containers in the chute with the lowermost in alignment with the mandrel and guide or for releasingsaid lowermost container and supporting those following it,

and in which there is provided a single'continuously rotating cam and means for actuating said shearing means, said pusher means and said escapement'means'from said cam in suitably timed relation, in which the power for driving the several means is derived from an electric motor, in which the container presenting means includes a chute structure through which the containers pass and which includes a removable door through which access may be had to the interior of the chute, and in which the motor is served by a power circuit including a switch which is closed whenever the chute door is properly closed and which is opened when said door is removed or improperly closed so as to open the circuitand discontinue operation of said motor.

15. In a machine of the character described, means for directing a strip of liner material from a supply roll, means for corrugating the strip of liner material, means for cutting said strip of corrugated liner material into proper liner lengths, means for serially presenting containers at a liner inserting station, means for shaping each corrugated liner length into a single walled cylindrical liner opposite a container at said station, means for feeding the cut liner lengths from the cutting means to the shaping means, and means for inserting each shaped. liner into a container presented at said station, said liner length feeding means op rating at an accelerated speed eifective to provide spacing between successively cut liner lengths sufiicient to allow each liner r and for corrugat ng the same as it is being fed,

means for serially presenting containers at a liner inserting station, means for'shaping each corrugated, and cut liner len th into a single walled cylindrical liner opposite a container at said station, means for feeding the cut liner lengths from the cutting means to the shaping means, and means for inserting each sha ed liner into a container presented at said station, said liner length feeding means operating at an accelerated speed effective to provide spacing between successively cut liner lengths sufilcient to allow each liner shaping and insertion to clear the suc,' ceeding presentation of a liner length to said shaping means.

17. In a machine of the character described, means presenting a continuous strip of l ner 1 terial', means for cuttingthe strip into liner lengthscooperating corrugating rolls for con tinuously feeding the strip to the cutting means and for corrugating, the same as it is being fed, means ,for serially presenting containers. at a liner inserting station, guide means for confining each cut and corrugated lengthrof liner material in the form of a cylindrical liner opposite a container at said station, opposed belt means for receiving the liner lengths as they are cut and presenting them at accelerated speed to said guide means to provide spacing between the liner lengths thus serially presented to said guide meanaand pusher means for pushing each cylin-. drical' liner into a container presented at said 7 station.

18. In a machine of the character described, a

continuously rotating mandrel, a guide surrounding the mandrel in, spaced relation but for an entrance of limited width into said space, a pair of continuously driven cooperating corrugating rolls, means for directing a continuous strip of liner material between said rolls, shearing means for cutting the strip into liner lengths as it is fed between and corrugated by said rolls,opposed belts'for directing the corrugatedand cut liner lengths into the guide entrance to be wound into cylindrical form aboutthe mandrel within the guide, said belts being driven at an acceler ated speed with relation to said rollsso as to provide spacing between the liner lengths serially fed by the belts into said guide entrance, means for serially placing containers, in alignment with the mandrel and guide, and pusher'means for pushing each shaped liner out of the guide and into a container presented in alignment there with.

19. Apparatus as defined in claim 1 in which the means for shaping the liner lengths comprises a rotary mandrel about which said lengths are wound, and said inserting means comprises pusher bars longitudinally projectible and retractable with respect to said mandrel, there also being included means for operating the cutting means and the pusher means in timed relation so that before the pusher .bars are fully retracted after being advanced to insert one liner another liner is beingwound about said mandrel and the pusher bars, said pusher bars having spring p'roj'ected pusher end portions normally tending to spring out into pushing position behind a liner but Whichareyieldable to permit retraction of. the bars through a liner being wound on the mandrel. V

20. In a machine of the character described, a continuously rotating'mandrel, a guide surrounding the mandrel in spaced relationv but for an entrance of limited width into said space, a pair of continuously driven cooperating corrugating rolls; means for directing a continuous strip! of liner material between said rolls, shearing means.

mandrel for pushing each shaped liner out of the: guide and a container presented in align.

13 14 ment therewith, and means for operating the REFERENCES CITED shearing means the belts and the pusher bars The followin references are of record in the in timed relation so that before the pusher bars file of this ai are fully retracted after being advanced to insert one liner another liner is being wound about said 5 UNITED STATES PATENTS mandrel and the pusher bars, said pusher bars having spring projected pusher end portions nori gg z la y; g 9 14 mally tending to spring out into pushing position 1 1 B ker 1916 behind a liner but which are yieldable to permit 2 g; i 1917 retraction of the bars through a liner being 10 1,340,110 Bolger May 11, 1920 wound on the mandrel. 1 540 336 H ett J ne 2 1925 ROBERT s. CONDON. 1

2,030,693 Eden Feb. 11, 1936

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