US2325162A

US2325162A - Coating machine

Info

Publication number: US2325162A
Application number: US394150A
Authority: US
Inventors: Carl W Goodwin; Herbert G Vore
Original assignee: American Seal Kap Corp of Delaware
Current assignee: American Seal Kap Corp of Delaware
Priority date: 1941-05-19
Filing date: 1941-05-19
Publication date: 1943-07-27
Anticipated expiration: 1960-07-27

Description

July 27., 1943. c. w. GOODWIN ET AL COATING MACHINE Filed May 19, 1941 July 27, 1943. c. w. GOODWIN ET Al. 2,325,152

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July 27, 1943 c. w. GOODWIN ET AL 2,325,l62

COATING MACHINE Filed May 19, 1941 v 4 Sheets-Sheet 3 INVENTORS f/M W 200W/4f July 27, 1943. c. w. GooDwIN ET AL 2,325,162

QfavTING MACHINE 'Filed May 19. 1941' 4 Sheets-vShevet 4 ff Y L Patented July` 27, 1943 COATIN G MACHINE Carl W. Goodwin, Plainfield,

G. Vore, Jackson Heights, N.

N. J., and Herbert Y., assignors to American Seal-Kap Corporation of Delaware,

" Wilmington, Del.,

a corporation of Delaware Application May 19, 1941, Serial No. 394,150

' 7 Claims.

I'he present invention relates to a machine for applying adhesive to partially preformed hood caps for milk bottles or the like.

One object of the present invention is to provide a new and improved machine of the above type.

Another object is to provide a novel and improved machine for applying adhesive to the folds of the pleated skirts of partially preformed hood caps, so that these folds can be sealed together during the bottle capping operation.

Another object is to provide a novel and improved machine for applying an annular coating of adhesive on the lower portion of thepleated skirt of a partially preformed hood cap.

Another object is to provide a novel and improved machine of the above type, which lends itself to adhesive applying operations on an eilicient mass production basis..

Anotherv object is to provide a novel and improved machine of the above type, having means by which partially preformed hood caps, nested and arranged in stacks in a tray can be easily transferred as a batch from said tray to said machine for adhesive applying operations.

Another object is to provide a novel and improved machine of the above type, having means by which stacks of nested caps, after being coated with kadhesive as above indicated, may be easily transferred as a shipment.

Various other objects and advantages of the invention will be apparent from the following particular description, and from an inspection of the accompanying drawings, in which Fig. 1 is a fragmentary side elevation of the upper part of an adhesive applying machine ernbodying the present invention, said machine being shown with parts broken away, and with stacks of nested caps in operative position ready to be coated with adhesive.

Fig. 2 is a top plan view of a portion of the machine taken on line 2-2 of Fig. 1, and shown without the caps to be coated.

Fig. 3 is a section taken on line 3-3 of Fig. 2, showing stacks of nested caps in position to be adhesively coated.

Fig. 4 is a section taken on line 4 4 of Fig. 2, showing stacks of nested caps in position to be coated, and also showing the adhesive spraying device.

Fig. 5 is a section taken on line 5-5 of Fig. 4, but on a larger scale.

Fig. 6 is a top plan view of one end portion of batch to a tray for storage or device.

Fig. 7 is a top plan view of a rack by which stacks of preformed nested caps can be transapplying machine.

Fig. 9 is an end view of a stack of nested caps in the process of receiving adhesive through a spray nozzle. l

Fig. l0 is an elevational' View of a stack of nested caps, taken along line Ill-Ill of Fig. 9 and shown in the process ofbeing sprayed with adhesive, and

Fig. 11 is a top plan view of the stack of nested caps in the process of being sprayed with adhesive. y l

The machine of the present invention is shown pplied as shown in Figs. 9, portions i1 of the skirts I4 exposed and with the line of nested pleats l5 extending helically around the stack of caps. These stacks A are stored in this condition on a divided tray 20 as 2 t shown in Fig. 8, until such times .as they are transferred to the machine of the present invention for the purpose of applying adhesive to the folds of the pleated skirts I4 of the cap, so that these folds can be sealed together during bottle capping operations.

The tray 20 is preferably of wooden construction, and comprises a pair of side bars 2|, interconnected by a pair of end bars 22 to form an open rectangular frame. A series of parallel ltransversely spaced grid bars 23 extend between and are connected to the end frame bars 22, and a pair of bars 24 are secured to and extend along the side frame bars 2l respectively. Two of the stacks A of nested caps l are seated on and between adjoining 24 on the sides respectively of the tray 20, while the other intermediate stacks A are seated on and between adjoining grid bars 23.

Each of the side frame bars 2l is shown provided along one edge with a channel 21 of semicircular cross-section, and along the other edge with a ridge 28 of corresponding cross-section, to permit stacking of the trays 20, and to lock the stacked trays against relative horizontal movement by the interengagement of the ridges 28 and channels 21 of adjoining trays 20.

As a feature of the present; invention, the adhesive applying machine is constructed to permit expeditious transfer of the stacks of nested caps l0 as a batch to and from said machine, without substantially disturbing the relative positions of said stacks. For that purpose, there is provided a transfer rack 3D, which is preferably of metal, and which comprises a pair of parallel end pieces 3l, interconnected by parallel side pieces 32I to form an open rectangular frame substantially coextensive in outline with the outer frame of the tray 20. Each of these end pieces 3i isv in the shape of a zig-zag bar, having a. series of upwardly offset triangular sections 33, separated by straight horizontal sections 34 to form a, series of stack receiving recesses 35 dividing the rack 3G into compartments. The recesses 35 of one frame bar 3i are in registry with the corresponding recesses 35 of the other frame bar 3i to receive the end sections of each stack A in seating engagement with the base sections 34, and upward side sectiens 33 of registering recesses, and are spaced to correspond to the spa" ing ci the s'tacss A in the trays 2G. Brace reds in the form of angle irene extend between the framebars in. seating engagement with the apices of the triangular bar sections t-i, and are secured. thereto by welding or the iike.

in transferring the stacks from the tray it to the adhesive applying machine tc be described,

nverted over the tray shown the rack; is n 'in Fig. 8, and iowa-red until the side frame bars e2 tray in this position or" the rack et, the stacks n extend inte recesses 35 ci said act: The tray Erl and rack are then inertedv together and poslticned en the adhesive pplying machine as shown in Fig. 5, and as will be more fully described. hereinafter to deposit the stecss A on said machine. The tray 2d is then iiited and removed, while the transfer racl; is retained on the machine to permit easy ire-transT fer of the whole batch ci stacks as a unit to the or other sutable receiver after the com eletion of the e-'hesive applying operation. Y YThe ad'. e applying machine of the present invention comprises a stan ii, having e. pair of front uprights fit and a pair of uprights ii,

seid rack. rest on the side frame bars Zi 0f interconnected into a rigid supporting structure by suitable bracing members 45. The rear up-` rights 42 extend a substantial distance above the front uprights 4l to support the operating parts of the machine in inclined position as will be more fully described.

A frame 44 is supported in an upwardly and rearwardly inclined position on a frame holder 45, fixed to the stand 40. This frame holder 45 is shown as an open rectangular structure, having its border or side members 48 in the fo-rm of angle irons, with inwardly extending marginal flanges 41 along their upper edges for seating the frame 44. The frame holder 45 has its front end extending snugly between the front uprights 4| and secured to the upper ends thereof by suitable means, shown as bolts 49. The rear end of the frame holder 45 extending snugly between the rear uprights 42, is raised above the front end and is secured to said rear uprights 42 by suitable means, for instance bolts 50. 'Ihe frame holder 45 will be inclined upwardly and rearwardly at a convenient angle as shown.

To the forward lower end of the frame holder 45 is secured a plate 5I, extending above the up per edge of said frame holder 45 to form a stop or seat for the lower front edge of the frame 44.

The frame 44 comprises a pair of side bars 54, interconnected by a pair of end bars to form a rectangular open frame structure. This frame 44 is substantially co-extensive in outline to the frame holder 45, and is seated on said frameholder 45 with its front forward edge abutting the stop plate 5I as shown in Figs. 1, 3 and 4, so that said frame 44 is inclined upwardly and rearwardly, as above mentioned. The frame 44 is Xed to the frame holder 45 in this inclined position by suitable means, such as bolts (not shown), passing through brackets (not shown) on said frame 44 and through the marginal flanges 41 of the frame holder 45.

For seating the rack 30 in proper position in the frame 44, each of the side bars 54 of said frame has secured to the inner side thereof a pair of inclined brackets 56, shown in the form of angle irons having marginal rack supporting fianges 5'?, extending inwardly from the upper edges thereof. These two brackets 5G are spaced by a substantially rectangular recess ES in the side bar 5d, extending from upper edge oi said bar Ell, and serving as a clearance opening tc receive the operators while the rada Sie is being lowered into the frame The lower ends of the rack: supporting flanges 5l of the two lower brackets are turned upwardly at rig -t angles to said flanges te steps or seats 56 for the reci; 35 as shown in Fig. l.

Rotatabiy supported en the frame lili is a series of spaced paraliel inclined rolls @5, which partially support the stacks of caps, and which i rictionally drive said stacks at 'nigh speed. Each ci these rolls comprises a metal tube St into which is press fitted at its upper rear end, the reduced end l' of a bearing member A Flange l on the bearing member S8; abuts the upper rear edge or the tube @il and projects radially outwardly beyond the outer periphery of said tube 56.

The upper rea-r section of the bearing meniber is in the form o a cylindrical block it, ccextensive in diameter with that of the flange lii, and axially spaced from said iiange l@ by an intermediate reduced section 'E21 of said bearing member 68 for the purpose to be described.

A. roll locking spindle 'i5 extends into an axial faire 16 in the block 1|, and passes through a bushing 11, having a reduced end press fitted into the rear end wall 55 of the frame M. The lower forward end of the spindle 15, extending into the bore 16 of the block 1|, is of reduced diameter to form an axially facing annular shoulder 18, which bears against the block 1|, to limit the axial position of said spindle 15 with respect to said block. The rear end 80 of the spindle 15 is knurled to afford a rough grippingsurface by which said spindle 15 may be manually pulled outwardly to release the corresponding roll 65.

A collar 85 is press fitted in the lower front end of each tube 66, and serves as a bushing for a drive shaft 86 splined thereto by any suitable means, shown as a Woodruff key, to permit axial movement of said tube 66 out of drive'engagement with said shaft 86. This drive shaft 86 is journalled in a bearing 81, pressed fitted in an opening in the lower front end wall 55 of the frame 44, and is formed with a cylindrical enlargement or boss 88 for the purpose to be described.

For driving the rolls 65, a main drive shaft 95 is supported on bearings 96, fixed to the lower front wall 55 of the frame 44, and carries a series of helical gears 91 meshing with helical gears 98 fixed to the shafts 86 respectively.

In order to drive the main shaft 95, there is provided a motor (Fig. 1), supported on a platform |0| between the stand uprights 4| and 42, and rotating the main shaft 95 through a suitable speed reduction drive. This drive is shown comprising a comparatively large pulley |02 driven by a belt |03 from a smaller pulley 04 on the shaft of the motor |00. A comparatively large pulley |05 on the main drive s'haft 95 is driven by a belt |06 from a smaller pulley |01 on the shaft of the pulley |02.

To permit easy cleaning of the rolls 65, and to increase the effectiveness of their peripheries for friction drive engagement with the stacks A of caps, an easily removable paper tube I |0 is fitted tightly over each of the metal tubes 66 to rotate with said tube 66. This paper tube |0 abuts the flange 10 on the corresponding bearing member' 58, and has an outside diameter equal to that of said flange 10, so that the outer peripheries of said paper tube ||0 and said flange 10 are substantially flush.

When it is desired to replace a used paper tube ||0 by a fresh one, the corresponding spindle 'i5 is pulled rearwardly out of the block of the bearing member 68 to release the respective roll 55. 'Ihis roll 65 is then slid axially rearwardly out of engagement with the drive shaft 86, and lifted transversely out of the frame 50. After the used paper tube |0 has been replaced by a fresh Y one, the roll 65 is lowered in the frame 00, slipped over the shaft 85, and locked in axial position by the spindle 75.

For holding the ends" of the stacks A in proper axial position on the frame 48, there is provided a series of inclined spindles at the lower front end of said frame IM arranged above and in staggered relationship with respect to the rolls 55, and a series of inclined spindles i2| at the upper rear end of said frame d0 in axial registry with respective spindles |20.

Each of the lower spindles |20 is journalled in suitable anti-friction bearings mounted in a bearing block |22, which is shown fixed to the front lower wall 55 of the frame 4d by bolts |23. The upper rear end of each spindle |20 is formed with a cylindrical stack holder or chuck |24. provided with an annular rim |25 adapted to engage the inner surface of the top wall of the pouring lip housing I2 of the lowez` end cap of the stack A, as shown in Fig. 3. To meet sanitary requirements, the diameter and depth of this rim 25 is such, that no part of the stack holder or chuck |24 comes in contact with any part of the lower end cap of the stack A, which might extend into the interior of a. bottle when sealed thereon.

A collar or cylindrical enlargement |26 on the spindle |20 has a peripheral engagement with the cylindrical enlargements 88 on the two drive shafts 88 adjoining said spindle |20 on opposite sides thereof, so that said spindle |20 is .frictionally driven from said shafts 86.

Each of the upper rear spindles |2| is journalled in anti-friction bearings mounted in a bearing block |30, shown fixed to the rear upper wall 55 of the frame I4 by bolts |3I. Press fitted or otherwise xed to the lower end of each spindle |2| is a stack holder or chuck |32, formed with a recess |33 to receive the upper end cap of the stack A. This end cap extends only partially into the recess |33, so that the outer skirt portion |1 of this cap is exposed to receive the adhesive asV will be described.

The upper stack holders or chucks |32 are axially movable to permit the deposit of each stack A between a pair of aligned holders ofi-chucks |24 and |32 for adhesive applying operation, and to permit the removal of said stack from between said holders or chucks |20 and |32 at vthe completion of said operation. For that purpose each of the upper spindles |2| is axially slidablc in its bearing block |30, and has afxed to its upper rear end a collar |35, by which said spindle |2| can be axially pulled outwardly.

In order to rotate the rock shaft |36 for the operation described, there is provided an arm m3 xed at one end to said rock shaft |35,

and is pivotally connected at its lower front end at |05 to an intermediate section of a crank handle |46, which is pivotally supported at one end on one of the front bolts 49 connecting the frame holder d5 to the stand 40.

In normal inactive position shown in full lines in Figs. 3 and 4, the crank handle |06 extends obliquely upwardly substantially at right angles to the plane of inclinationlof the frame |14. To shift the upper stack holder or chuck |32 obliquely upwardly, the crank handle |08 is swung forwardly to the position shown in full lines in Fig. 2 and in dot and dash lines B in Fig. 4. In this position, the crankhandle |46 will be past the center line of the link |00, so that the upper stack holders or chucks |32 will bellocked in their upper slidable position until such times characterv of the upper as the crank handle |46 is returned to the position indicated in full lines in Figs. 3 and 4.

For depositing stacks A in the frame 44, after the rack 30 has been inverted over the tray 20 as previously described and shown in Fig. 8, and the assembly reinverted so that the stacks A rest in the recesses 35 of said rack 30, the assembly is lowered in inclined position into the frame 44, while the upper rear spindles |2| are in their uppermost position as a result of the forward operation of the crank handle |36. After the assembly of the rack 30 and tray 20 has been lowered to proper position in the frame 44, this assembly is shifted obliquely downwardly and forwardly to slide the straight base sections 34 of the front end bar 3| of the rack 30 underneath the lower spindles |20, until this front bar 3| rests against the end stops 50 on the brackets 56. The rack 30 is then rested on the flanges 51 of the brackets 56|. In this position of the rack 30, the stacks A will be in axial alignment with respective pairs of axially aligned spindles and |2l, the front end bar 3| of the rack 30 will be seated against the stop 60 and will extend in the recesses formed between the front lower ends of the tubes 65 and the enlargements 38 on the drive shafts 8E, and the rear end bar 3| of said rack 30 wiii extend in the recesses formed around the reduced sections 12 of the bearing members 58.

After the rack 30 has been seated in the proper position described, the inverted tray 20 is lifted and removed, and the. crank handle |45 is returned to the position indicated in full lines to release the upper spindles |2 The stack holders or chucks |32 on these spindles |2| are heavy, and their axial inclination such, that when the spindles |21 are released, they will gravltate obliquely forwardly and downwardly in position to engage the upper ends of respective stacks A as shown in Figs. l, 3 and 4. The weighted spindles |2| also serves to maintain the stacks A under axial compression during rotation of said stacks, so that the caps in each stack are retained in proper nested position during adhesive applying operation.

The stacks A resting on the rolls 65 will be frictlonally driven thereby at high speed. The peripheral surface interengagement between the cylindrical enlargements |25 on the spindles |20 and the cylindrical enlargements 88 on the drive shafts 85 will assist in frictionally driving these stacks. If desired, these enlargements 88 and |26 may be eliminated, and the rolls B5 depended on entirely to frictionally drive the stacks.

For applying the adhesive onto the stacks A as these stacks are rotated in the frame 44, there is provided a spray device comprising a series of spray nozzles |50, each adapted to operate on a respective stack of caps. These spray nozzles |50 are connected to a manifold |5|, which in turn is connected to a suitable supply of adhesive by a flexible conduit |52. Suitable air pipes |53 deliver the necessary air pressure to the adhesive to force said adhesive in spray form onto the rotating surfaces of the stacks A.

Each of the nozzles |50 is preferably designed to eject a spray |55, fanned out in the shape of a thin extended layer as shown in Figs. 9, l0 and 11. The nozzle |50 preferably extends obliquely downwardly with the axis C of said nozzle |50 disposed above the axis of the stack as shown in Fig. 9, and the spray |55 should preferably be positioned and shaped to enter into the inner folds |55 of the rotating skirt pleats i5. To reach these inner folds |58, the plane of the spray desirably extends substantially parallel to the helical line of nested pleats I5 indicated approxi- Y mately by the line D-D. In this way the spray is driven into the inner folds |56 of the caps as the stack of caps is rotated, and is caused to adhere particularly to the portions of the caps which are to be folded over for securing the same on the bottle. The spray |55 also forms a complete band of adhesive on. the outer exposed portions |1 of the skirts I4 of the nested caps.

The nozzles |50 may be of any well known type, such as that of the DeVilbiss type, in which the shape, size and angle of the spray |55 is adjusted.

Although the desirable position and shape of the spray |55 has been described, itis to be considered that these may vary in accordance with the particular adhesive used and with the particular requirements of any specific case.

Any suitable adhesive may be used, such as an isomerized rubber composition known as Pliolite, or other thermoplastic adhesives having a low sealing temperature, as set forth in the copending application of Herbert G. Vore, Ser. No. 391,125 for Bottle cap and method of making the same (SK-28).

In order to move the series of nozzles |50 along their respective stacks, the ends of the manifold |5| have secured thereto collars |60, threaded on a pair of parallel lead screws iBi, which are joui-nailed in bearings |62 supported on the upper ends of the stand uprights 42. These lead screws |6| extend obliquely parallel to the frame 44, and are positioned outwardly beyond the sides thereof to permit free movement of the rack 30 towards and away from the frame 44. A motor |63 for driving these lead screws |6| is supported on a bracket |54 fixed to the stand uprights 42.

The motor |63 may be controlled from a manually operable switch |55, and may be of the reversible type to effect reversal of the feed screws 16|, and return movement of the nozzles 50 into elevated position after they have reached the end of their oblique downward stroke. During this return movement of the nozzles |50, the spraying of adhesive on the caps may be continued, or if desired, the supply of adhesive may be discontinued at the end of their downward forward stroke to shut off the spraying operation.

In the specific form shown, the return movement of the nozzles |50 is effected automatically, and the motor |63 shu-t off automatically at the end of a complete spraying cycle. For that purpose there is provided a motor cut-oir switch |15 of the push-button spring-pressed type at the rear upper end of the machine, and a reversing switch |15 of the push-button snap type at the front lower end of the machine. Dogs |11 and |18 rigid with one of the lead screw collars |66 are adapted to operate the switches |15 and |16 respectively at the end of each stroke. The upper switch |15 opens when engaged by the dog |11 to shut olf the motor |63 and closes when released to rotate the motor |63 in one direction.

The manual switch |55 when closed short circuits the upper switch |15. When this manual switch is closed the motor |53 is started and the nozzles |50 moved obliquely downwardly and forwardly from their rearward aszaiea elevated position. The switch |65 may be of the springpressed type, so that when it is released it 'will open. The initial downward movement of the nozzles |50 under control of the switch |65 releases the switch |15, so that this switch is closed and the downward and forward movement of the nozzles |50 continued. When the nozzles |50 reach the end of their downward forward stroke, the dog |18 operates the switch |16 and thereby reverses the motor |63, so that the nozzles |50 return towards their rearward elevated position. When the nozzles |50 reach this elevated position, the* dog |11 engaging the switch |15 opens the switch and thereby shuts olf the motor` |53. Suitable means may be provided if desired to automatically shut oif the spray when the nozzles |50 have reached their elevated position.

Before starting another spraying cycle, the reversing switch |16 can be manually pushed to restore it to its former position for the next downward forward movement of the nozzles |50, or automatic means, such as relay or solenoid means, may be provided to effect this restorationy when the nozzles have reached their elevated position at the end of the spraying cycle.

After the completion of the adhesive spraying operation, the crank handle |46 is moved forwardly from the position shown in full lines in Fig. 4 to the dot and dash position B shown to shift the upper spindles |2| rearwardly, so that the stacks A are released from engagement with the upper stack holders |32. An empty tray 20 is then inverted over the stacks in the frame and in position to receive the stacks between adjoining grid bars 23 and 2G. The rack 30 with the inverted tray 20 is then lifted from the frame M and the assembly inverted, so that the trays 20 Will be in the position shownin Fig. 8 with stacks A resting on the grid bars 23 and 20. These trays 20 can then be stacked and stored.

As many changes could be made in the above apparatus, and many apparently widely different embodiments of this invention could be made without departing from the scope of the claims, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What is claimed is:

1. A machine for applying adhesive to the skirt folds of hood caps, comprising means for supporting a stack of nested caps in inclined position with the outer marginal portions of their skirts exposed, and including a pair of axially aligned freely rotatable chucks having heads constructed to fit and engage the ends of said stack respectively, the upper chuck being weighted and freely slidable axially to apply gravitational force on said stack and maintain it under compression, means for rotating said stack, a nozzle and means feeding said nozzle along said stack for spraying adhesive onto the surface of said stack.

2. A machine for applying adhesive to the skirt folds of hood caps, comprising a pair of parallel spaced rolls, means for rotating said rolls in unison, means for holding a stack of nested caps between said rolls in peripheral fr ictional drive engagement therewith, and including a pair of axially aligned, freely rotatable chucks disposed above said rolls with their axes parallel to the axes of said rolls and disposed in a vertical plane between said rolls, said chucks having heads constructed to fit and engage the ends of said stack respectively, a nozzlel for spraying adhesive said stack, and means said stack.

3. A machine for applying adhesive to the skirt folds of hood caps, comprising a pair of spaced inclined rolls, means for rotating said rolls in unison, means for holding a stack of nested caps between said rolls in peripheral frictional drive engagement therewith, and including a pair of axially aligned chucks having heads constructed to t and engage the ends of said stacks respectively and disposed above said rolls with their axes inclined parallel to the axes of said rolls and in a vertical plane midway between said rolls, the upper chuck being weighted and freely slidable to apply a gravitational force on said stack and maintain it under compression, a nozzle for spraying adhesive on the surface of said stack, and means feeding said nozzle along said stack.

4. A machine for applyingadhesive to the skirt, folds of hood caps, comprising a frame, a pair of parallel spaced rolls, means for supporting said rolls on said frame, and including a spindle of each of said rolls in axial roll, and a slide bearing for said spindle supported on said frame, said spindle being slidable in said bearing out of supporting engagement with said roll to permit removal on the exposed surface of feeding said nozzle along sive on the surface is rotated.

5. A machine for applying adhesive to the skirt folds of hood caps, comprising a frame, a pair of parallel spaced rolls, means for supporting said rolls on said frame, and including a shaft coaxial with each of said rolls, and having a drive spline connection with one end of said roll .permitting axial movement of said roll out of engagement with said shaft, a bearing on said frame for said shaft, a spindle mounted on the other end of said roll in axial alignment with said roll,

ends of said stack respectively, a rotatable mem.- ber, means responsive to the rotation of said member for moving one of said chucks axially with respect to the other chuck to permit inserstack to spray the exposed portions of said skirt with adhesive.

7. A machine for applying adhesive to the skirt folds of hood caps, comprising an open rectangular frame, means for supporting a. stack of spect to the other chuck to lpermit insertion of a nested caps on said frame with the outer margistack of nested caps between said chucks or to nal portions of their skirts exposed, and includpermit removal of a stack of nested caps from being a pair of axially aligned freely rotatable tween said chucks, an adhesive spray nozzle, and chucks having heads constructed to iit and en- 5 means feeding said nozzle along said stack to gage the ends of said stack respectively and supspray the exposed portions of said skirts with ported near the ends respectively ot said frame, a adhesive.

crank handle near one end of said frame, means 4 CARL W. GOODWIN. responsive to the rotation of said crank handle HERBERT G. VORE.

for moving one of said chucks axially with re- 1G.