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Publication numberUS1104503 A
Publication typeGrant
Publication dateJul 21, 1914
Filing dateJul 26, 1907
Priority dateJul 26, 1907
Publication numberUS 1104503 A, US 1104503A, US-A-1104503, US1104503 A, US1104503A
InventorsJohn G Hodgson
Original AssigneeAmerican Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Can lacquering or coating machine.
US 1104503 A
Images(3)
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Description  (OCR text may contain errors)

J. G. HGBGRECVNA GAN LAGQUERING 0R COMING MAGMNE.

APPLICATION FILED .TULY2G, i907.

In, -1v1/ffii a'. G. HUDGSN. GAN LACQUERING 0R GOATING 'MAGEINE APPLICATION FILED JULY 2G, QQIX m 21a-@mm Jur 231, im@

X 3 SEEETSMSHBET APPLUATION FILED JULY 26,1907.

Patented July 2l, w14.

-3 SHEETS-SHEET 3.

y arcanos.

entran erratas rarnnrr irsich.l'`

JOHN Gr. I'LQDGSON, QEVMAYWOC'D, ILLINOIS, ASSIGNOR TO AMERICAN CANCOMPANY,

OE NEW YORK, N. Y., .A COREOBATION F NEW' JERSEY. v v

can incessante on concerne' MACHINE.

Application filed July 28, 1967.

To all whom 'it may concern lle ithnown that l, donn G. llonosoN, a citizen of the United States, residing in Bilaywood. in the county of Cook and State of Illinois, have invented a new and useful Improvement in Can Lacquering or Coating Machines, of which the following is a specification.

lily invention relates to improvements in machines for lining or coating cans on the inside with lacquer or other protective coatings.

The object of my invention is to provide a simple and efiicicnt machine 'for automatically, rapidly and cheaply lining` or coating sheet metal preserving cans on the inside, uniformly, perfectly and continuously through their entire-interior surface with a protective coating of lacquer or other material that will be dry, hard, solid and firmly adherent, innocuous, tasteless, insoluble in `egel-able or food acids or juices, and that will successfully' withstand without injury the heat of the coo-king or processing step to which the cans are subjected after being illed, and the heat of the soldering opera tion employed in soldering in place the caps that close the filling openings in cans, and by which also during the coating operation the interior of the cans may be.y eliectually sterilized andrendered perfectly sanitary.

My invention consists in the machine l have devised for .lniactically accomplishing this object or result, the saine comprising primarily a holder for the cans, a swab having a longitudinal face for contacting with the interior periphery ot' the can and an end face or end faces for contactingv with the bottom head or top and bott-om heads ot the cans according` as .the can to be coated has only one head or two heads, with mechanism for inserting the swab in the can either by moving theswab toward the can or the can.

toward the swab, and mechanism for rotating the swab and can relatively to each other, means for supplyingV the swab with liquid lacquer or protective coating, device for delivering the cans to the can holder or holders, a discharge runway for thefreshly coated cans and .a gas jet or ignition device ior igniting the vapors in and issuing from the freshly coated cans as they move along the runway, and thus flashing and sterlizing the interior et the cans.

Specification of Letters Patent.y

yPatented July 2l, 191e. serial No. 385,627.

In practising my invention, I prefer to mount the swab to reciprocate in and out ofthe can instead of moving the can into a position surrounding the swab, and I also prefer to rotate the can in respect to the swab instead of 4rot-ating the swab in respect tothe can. I also prefer to employ/a plurality of can holders, the same being mounted on a movable carrier which is preferably given an intermittent movementI to bring each can holder in turn vinto registry with the swab.

My invention also consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown and described.

In the accompanying drawing forming a part of this specification, Figurer l is a side elevation of the machine embodying my invention. F ig. 2 is an end elevation showing some partsbroken away or sectioned. Fie. 3 is a detail central vertical longitudinal section showing ythe swab and other parts. Figs. Il and 5 are detail cross sections on lines 4 4 and 55.respectively of Fig. 3; Fig. 6 is a detail vertical section showing the feed plunger for the liquid coating material or lacquer. Fig. 7 illustrates a modified construction of the swab.

ln the drawing, A represents the frame of the machine, B the swab, C C' thecan holders, D the carrier or conveyer upon which the can holders are mounted, E the can run' way or device for delivering the cans to the can holders, F the mechanism or device for rotating the cans, G a feed trough for supplying liquid lacquer or coating material to the swab, G1 a feed plunger which also .may be used for supplying lacquer or coatingmaterial to the swab, H the discharge runway for the freshly coated cans, K a gas jet for igniting or flashing the cans as they move along the discharge runway, and M N tanks containing the liquid Vlacquer orcoating material.

The swab Bhas a longitudinal edge I) for ycontacting with the inner periphery of the can andtra-nsverse or end edges b1 b2 for contacting with the top and bottom heads m1 of the can X according as the samel has one or two heads. The swab B I prefer to make. of an absorbent pad of felt or like material instead of bristles; and it is of a, size and shape adapted to enter within the filling opening or mouth :v2 of the can. ln length, the swab B preferably approximates that of the can so that a slight longitudinal movement or reciprocation of the swab in the can will cause rst4 one end face b1 to contact with one head of the can and then the other end face b2 to contact withthe other head of the can, the longitudinal face b of the swab remaining in contact with the interior periphery of the can during the whole operation. The swab B is secured in its holder'or clamp B1 preferably byl screws or rivets h The swab holder B1 is preferably mounted to reciprocate in and out of the can and also to have av slight up and down movement in the can to bringit-s longitudinal coating edge l) into contact with the interior periphery of the can and to adapt it to readily enter;Irl the -somewhat contracted filling opening m2 in -kthe top; head w1 of the can in cases where the cans vhave top heads instead of simply a bottom head with open upper ends of the full-diameterof the can bod l'. prefer to impart these movements to t e swab rather than to the canor its holder in order to bring the swab and can holder int-o coperaytivefrela ion".- Thebtem B2 of `the swab holder; w ch isl preferably hollow so that it' may lalso be utilized for. supplying the liquidv lacquer or coating material to the swab if desired, is lactuated byka horizontally reciprocating slide B3 carried on a vertically movable slide or support B4, this being a simple andconvenient means for imparting to the swab its necessary double movement in and outof and up and down 'in the can* The horizontal slide B3 is preferably horizontally reciprocated as required in its guides B5 on the vertically movable 'slide or support Btl-by. means of a cam l yon the .main cam or driving shaft P through `the connecting link B, bent lever Bh, linlr 'B8 and bent lever B9, one arm of which has a froller B10 engaging the cam P. The linlr B ispreferably furnished with screw threaded or adjustable members B11, B12 for adjusting the slide BS in respect to its operating mechanism. The swabholder stem B2 preferably has a spring or yielding connection b4 b5 with the slide B3 to give a yielding pressure to the end faces b1 b2 of the swabagainst the top and Abottom heads of the can.- The cam P1 lwhich reciprocates .the swab in and out of the can is preferably provided with a secondary cam surface or `incline` p t'o give a supplemental reciproca- -tionto the swab while in the can to bring ,first its endfac'e b1 against the bottom head ofthe canvand then its end face b2 againstthe top head of 'the can. f

The movable 'guide or support B4 which serves to move the swab up and down in the :can as' required .is preferably moved up and -dowri iti its guide a on the main frame of.

the machine by mea-ns of a cam P2 on the cam shaft l), the slide BL or its upright member L carrying at its lower end an antifriction roller bl which engages the cam P2. The upright stem or member b of the support B4 is preferably furnished with an adjustable or slotted part 728 iiXed in place by clamp bolts b9 for vertical adjustment of the movable support or slidepB* through which the swab B is given its up and down movements. To limit the downward movement of the swab and the pressure of its lower longitudinal edge against the interior periphery of the can, l provide the movable support Bt or its upright stem b with a stop 510 engaging an adjustable stop or screw Z211 on the frame of the machine. The same cam P2 which moves the swab up and down while inside the can to bring its longitudinal edge Z) into proper contact with the inner periphery of the can also serves to immerse or project the lower edge of the swab to the proper depth into the feed trough Gr. v,

The can holder C may be of any suitable construction adapt-ed to hold the can in cooperative relation with the swab. ln that embodiment of my invention wherein the can isthe member rotated, as illustrated in the drawing, the can holder is rotatable or of a construction adapted topermit the rotation of the can. The construct-ion of the rotatable cany holder C which l prefer to employ consists of a pair of rollers, each preferably furnished with flanges C1 at each end to prevent longitudinal movement of the can in the holder as the swab is boing inserted and removed therefrom. A plurality or series of can holders C, each consisting of a pair of rotatable rollers is preferably employed, the same being mounted on an intermittently movable carrier l), consisting preferably of a pair of wheels or disks secured to the shaft D1. The carrier disks i) D may be adjusted farther apart or closer together on their shaft Ul. as required to accommodate cans of different lengths, by means of set screws 0l.

The shafts C2 of the can holder rollers C are journaled in suitable holes yor bearings in the carrier disks D l). 'llliey carrier D may be intermittently rotated to bring the several can holders thereon successively into registry with the swab B by any suitable mechanism, the same consisting preferably vof a Geneva stop mechanism comprising a radially slotted wheel (Z2 on the carrier shaft D1 having curved stop faces da, and which wheel engages a coperating rotating disk and crank pin Z4 d5 on the cam shaft P.

The carrier D is preferably furnish ed with bridges D2 extending between adjacent can holders to prevent the cans from getting between the adjacent rollersof two adjacent can holders, and thus interfering with the. 130

Sti)

arcanos proper rot-ation of the can holder rollers. Each of the bridges D2 preferablyconsists of a sheet metal plate or strap having bent ends D3 partially embracing the shafts C2 C2 of the adjacent rollers@ C of two adjacent can holders The device E for delivering the cans to theqcan holders automatically preferably consists of antinclined runway having guide flanges E1 and an upper guard rail E2. v

Any suitable means may be employed. for rotating the can when it is brought into cooperative relation wit-h theswab. Instead, however, of rotating or driving the can holder1 rollers C- C in order to impart rotary movement to thel can,` I prefer to combine with the other parts a can rotating mechanism which engages the can itself, as this materially simplifies the construction of the machine. i And I have accordingly illustrated in the drawing a can rotating mechanism F operating in this manner, the same consisting preferably of an endless flexible belt F which engages the can when it is brought into registry with the swab B by movement of the can holder carrier'D. Ihe can rotating belt F is mounted upon a pair of pulleys-F1 F2, the shafts f of which are journaled in vertically adjustable bearings f1 on the frame of the machine so that' the can rotating belt may be adjusted up and down to accommodate cans of different diameters. The shaft f of one of the 'pulleys F2 is furnished with a pulley f2 to which motion is communicated by a belt f3 from a pulley f4 on the countershaft f5 having a pulley f8 which receives motion through a belt f7 from a pulley P3 on the main driving shaft P.

The feed trough G is' a narrow trough somewhat exceeding in lengththe length of the swab B, and it is preferably furnished with a well or deepened portion g and with a device7 as m3 which limits the depthor level of the liquid lacquer or coating material in the trough G; so that the liquid lacquer in the trough G may be maintained at a uniform and constant level and thus cause the absorbent swab B `to receive or absorb a uniform or measured quantity of liquid each time it is inserted or immersed therein. The liquid lacquer or coating material supply tank M is preferably a tight or hermetically closed tank and it is furnished with a feed pipel m, the lower end m1 of which `projects into the well g of the feed trough G below the level limiting device m3. Tha-t is to say, below the level of the liquid lacquer in the trough G. And thcl closed tank M has an air or vent pipe m2 leading from the. upper portion of the ytank M into the trough G or its well g with its lower end m3, substantially on a level with the uppervedge ofy theoverflow-llp. g1 of the feed trough G, so that when the rise of the liquid into the feed trough from' the tank M will ythen automatically cease. By"l this means the liquid lacquer or coating material in the feed trough automatically maintained at a uniform or constant height or level in the feed trough, while at the same time the liquid automatically flows into the feed trough as required.

When-the swab B is composed of an sorbent pad of felt or like material, the liquid lacquer, by capillary action, will eX tend from the outer longitudinal portion l) of the pad which is insertedv inr the liquid lacquer to the end portions or faces 'b1 b2 thereof which are to contact with the top and bottom heads of the can; and the trough G may, if desired, be used as the only device for feeding the lacquer in measured quantities to the swab. But I prefer to employ in addition to the feed trough G, a supplemental lacquer'feed or supply device G1 by which the liquid lacquer or coating material swab through the hollow stem B2 of the swab holder. The liquid coating material feed device G1 preferably consists of a reciprocating plunger having a feed pocket or recess g2 for feeding a measured quantity of liquid lacquer to each can.v On the upstroke, for example, of the feed plunger G1, the feed pocket g2 therein is brought into register with a feed port g3 in the plunger cylinder G2, and which communicates with the feed pipe a of the tank N; and on the opposite or down stroke of the feed plunger G1, the feed pocket g2 comes into registry with the feed pipe al which thus delivers a measured quantity of lacquer into the funnel n2 mounted on and communicating with the hollow stem B2 of the swab holder B1. Thev vhollow stem B1 of the swab holder is furnished with orifices b2 through which the liquid lacquer or coating material escapes into the swab. These orifices mayl extend the full length of the swab or may be located chiefly near each end of the swab as may be desired.

I prefer to employ both the feed trough and the feed plunger and hollow orificed stem Blas means for feeding or supplying the lacquer or liquid coatingmaterial to the swab, but either one of these feed devices may be employed without the other if desired; o

The discharge device H 'by which the freshly coated cans are discharged 'from the can holders and conveyed past the gas jet' or igniting device Ii preferably consists of a runway, the inner end of which is preferj ably somewhat inclined. The rails of this runway have upright flanges 7L to guide the cans as they roll along it. To insure proper movement of the'cans along the runway, I

lt l

iat

chain or belt H1 mounted on pulleys H2,

' the shafts H3 of which are journaled in 'lill vsa suitable bearings or supports on the frame of the machine. The shaft of one of these pulleys is preferably driven by a belt h1 traveling on pulleys h2 iig 71,4 h5, the' latter .n

beiiig on the main driving shaft l). y To flash and sterilize the cans by iire, an also to quickly dry, harden and render firmly adherent the preservative coating applied on the inner side thereof, and to free the same from vapors arising from the volatile and inflammable ingredients of the lacquer or preservative coating applied thereto and consequent injury to workmen or danger of hre, and also to eliminate from the interior coatings of the cans all taste, odor, or flavor that might otherwise exist from the coating, I mount adjacent to the can runway H a gas jet or other igniting device K so that as each can passes the gas jeton the runway the vapors in the can and issuing therefrom will be flashed, eX-

ploded and burnt.

For operation upon cans which are open mouthed or which have top heads with filling openings therein of ordinary size, the swab may be adapted to enter the can by making it small enough in transverse or radial dimension for this purpose, and then the transverse, radial or up and down movement of the swab while in the can will bring its outer or lower` edge into proper contact with the periphery of the rotating can. Ylf preferred, however, the swabmay be contracted or folded transversely and thus adapted to enter a comparatively small opening in the can, as illustrated in the modification at Fig. 7, in which the swab holder B22 is furnished with a rotatable member B23 carrying a finger 7213 for holding or wrapping the swab around the holder to contract yit transversely so it will enter the small opening of the can, indicated by the dotted lines m2.

I claim l. In an automatic machine for coating the inside of cans with lacquer or protective material, the combination with a plurality of rotatable can holders, an intermittently movable carrier upon which said holders are mounted, a runway for delivering the cans to the holders, means for successively rotating the cane: in the holders, a longitudina-lly reciprocating and transversely'movable swab adapted. to enter the can mouth or opening, a feed trough for the lacquer or coating material, a holder for said swab, a hollow perforated stem for said swabholder, a feed plunger' communicating with said hollow stem, a longitudinally reciprocating slide for `operating said swab, a transversely movable support for said slide, a

discharge runway, and a flame jet for flash- Lieu-,uca

ing or igniting and sterilizing the freshly coated cans as they pass on the discharge enter the mouth or opening of the can and apply a thin continuous coating or film of liquid lacquer or coating material to the 1nteiior surface of the can, means for bringing vthe swab and the can in said can holder into cooperative relation with each other with the swab inside the can, and in rubbing contact with its interior surface, and means for rotating said can and swab, relatively to cach other, substantially as specified.

3.` The combination with a can holder, of

a swab having transverse and longitudinal faces'forengagement with the end and peripheral surfaces of a can and adapted to enter the mouth or opening of the can and apply a thin continuous coating oi' film of liquid lacquer or coating material to the in terior surface of the can, means for bringing the swab and the can in said can holder into cooperative relation with each other with the swab inside the can, and in rubbing contact with its interior surface, means for rotating said can and swab relatively to each other, and means forreciprocating one of said parts, the swab or can, in respect to the other while the swab is inside the can, substantially as specified.

4. The combination with a can holder, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the mouth or opening of the can, and apply a thin continuous coating or lm of liquid lacquer orcoating material to the interior surface'of the can, means for bringing the swab and the canin said can holder into cooperative relation with each other with the swab'inside the can, and in rubbing contact with its interior surface, means for rotating said 'can and swab, relatively to each other, and means for automatically feeding or supplying liquid llacquer or coating material to the swab, substantially as specified.

5. The combination with a can holder, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces -of a can and adapted to enter the mouth or .opening ofthe can and apply a thin continuous coating or film of liquid lacquer `or coating material to the interior surface of the can, means for bringing the swab and the can in said canholder into cooperative relation with each other with the swab inside the can, and in rubbing contact vwith its interior surface, means for rotating incassa the longitudinal outer edge of said swab,

substantially as specified.

6. The combination with a can holder, of a swab having transverse and longitudinal faces for engagement with the end and po ripheral surfaces of a can and. adapted. to enter the mouth or opening' of the can,v and apply a thin continuous coating or film'of liquid lacquer or coating material to the interior surface of the can, means for bringing nal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the can and contact with its inner periphery and with its head or heads, and apply a. thin continuous coating or film of liquid lacquer or coating material to the linterior surface of the can, and automatic mechanism for bringing said swab and can into operative relation with the swab inside ne can, and in rubbing contact with its inerior surface, substantially as specified.

8. A can coating machine comprising` in combination a holderor support for the can and a swab having transverse and longitudinal faces for engagement with the end and peripheral' surfaces of a canand adapted to enter -the can and contact with its inner periphery and with its head or heads and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, automatic mechanism for bringing' said swab and can into operative relation with the swab inside the can, and in rubbing contact with its interior surface, and means for producing relative rotation between said swab and can, substantially as specified.

9,- The combination with a can holder, of a swab having transv c and'longitudinal faces for engagement ripheral surfaces of' a can and adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coatingv material to the interior surface of the can, and means for bringing` the swab and can into operative relation with the swab inside the can, and in rubbing Contact with its interior surface, substantially' as specified.

l0. A can coating machine comprising in combination a holder or lsupport for the can and a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to `faces for engagement with the end and peth the end and pc` l,liquid lacquer or coating material to the .in-

enter the can and contact with its inner pe riphery and with its heador heads and applj,7 a thin continuous coating' or filmof liquid lacquer or coating material to the-interior surface of the can, automatic mechanism for bringing' said swab `and can into operative relation with the swab inside ythe can and in rubbing cont-act with its interior surface and means for feeding or supplying liquid lacquer or coating material to the swab, substantially as specified. n y 11. Acan coating machine comprising in combination a holder or support for the can y and a swab having,I transverse and longitudi-A y n nal faces for engagement: with theendand `-l peripheral surfaces of a can and adapted tos enter the can and contact with its inner' pe-I v riphery and with its head or heads and apply a thin continuous coating or film of liquid lacquer or coating material to the inf terior surface of the can, automatic mechanisin for bringing 'said swab and can into Q operative relation with the swab inside the can, and in rubbing contact with its interior surface, and means for producing relative rotation between said swab and can and means for feeding or supplying' liquid lacquer or coating material to the swab, substantially as specified. i l

12. The combination. with a can holder, of a swab having transverse and longitudinal faces for engagement with the end. and pcriphcral surfaces of a can and adapted to enter the can. and apply a thin continuous` coating or film of liquid lacquer or coating material to the interior surface of the can,

tire rotation between said swab and can, .substantially as specified.

13. The combination with a can holder, of A ,p a swab havingi transverse and longitudinal y e.

i210 ripheral surfaces of a can and adapted to i enter the can and apply a thinr continuous coating or film of, liquid lacquer or coating material to the interior surface of thefica'n, c and means for bringing` the swabv and. can into operative relation with the swab inside` the can, and in rubbing contact with its in,-

terior surface, and means for producing` relative rotation between said swab and can,l and means for feeding or supplying`- liquid coating materia-i to the swab, substantially ,Y

t as specified.I f

lll. The combination with a can ,holder of a swab having` transverse and longitudinal`v faces for engagement with the end and peripheral surfaces cfa can and adapted enter the mouth or opening of the can` anfdfv s apply a thin continuous coatingl or hlm of f,

terior surface of the an, meansfor bringing the swab and the can in said can holder into cooperative relation with each other with the swab inside the can, and in rubbing contact with its interior surface, means for rotating said can and swab, relatively to each other, and means for automatically delivering the cans to said holder, substantially as specified.

15. The combination with a can holder of a swab having transverse vand longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the mouth or opening of the can and apply a thin continuous coating or lilm of liquid lacquer or coating material to the interior surface of the can, means for bringing the swab and the can in said-can holder into cooperative relation with each other with the swab inside the can and in rubbing contact with its interior surface, means for rotating said can and swab, relatively to each other, and means for automatically delivering the cans to said holder, and a can discharge runway. substantially as specified.

`16 rIhev combination with. a can holder of a swab adapted to enter 'the mouth or opening of the can, means for bringing the swab and thecan in said can holder into coperative relation with each other with the swab inside the can, means for rotating said ycan and swab, relatively to each other, means for automatically delivering the cans to said holder, and a flame jet for flashing or igniting the vapors in and issuingffrom the freshly coated cans, substantially `as specified.

17. In a machine of the `character described, in combination: a reciprocatine can coating device adapted to enter the interior of cans through the open ends thereof and apply a coating of material to the sides and end of the cans; and a device for igniting or flashing the cans immediately after they'I have been freshly coated, substantially as specified.

18. In a machine of the character dev scribed, in combination; a reciprocating can coating device adapted to enter the interior of a can through the open end thereof and apply a coating of material to the sides and end; a flame burner for igniting or flashing a freshly coated can and operating after the coating has been applied; and means for conveying a freshly coated can from the coating device to and 'past the flame burner after the coating device has been operated;y

incassa and a runway for conveying the can from the coating device to and past the flame burner and with the open end of the can adjacent the flame burner, substantially as specified.

20. The combination with a can runway, of a movable carrier, a plurality of can holders on the carrier, means for rotating the cans in the can holders, a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the can and apply a thin continuqus coating or film of liquid lacquer or coating material to the interior surface ofthe can, a device for feeding or supplying coating material to the swab, and means for reciprocating the swab,y in rubbing contact with the interior surface of the can substantially as specified.

21. The combination with a can runway, of a movable carrier, a plurality of can holders on the carrier, means for rotating the cans in the can holder, a swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material tothe interior surface of the can, a device for feeding or supplying coating material to the swab, and means for reciprocating the swab in and out of the can and while in the can, substantially as specified.

22. The combination with a can runway, of a movable carrier, a plurality of can holders on the carrier, means for rotating the cans in the can holder, a swab adapted to enter the can and apply a thin continuous film of coating material to the interior surface of the can, a device for feeding or supplying coating material to the swab, and means for reciprocating the swab and means for transversely or radially moving the swab while in the can, substantially as specified.

23. The combination with a can runway, of a movable carrier, a plurality of can holders on the carrier, means for rotating the cans in the can holder, a swab, adapted to enter the can and apply a thin continuous coating or film oflliquid lacquer or coating material to the interior surface of the can, a device for feeding or supplying coating material to the swab, means for reciprocating the swab in and out of the can and while in the can, and means for transversely or radially moving the swab while in the can, substantially as specified.

24'. The combination with an intermit-l the swab and can into operative relation" with the swab inside the canpand means for vso .thin continuous coating or film of holders on the carrier, means for automatilcally delivering the cans to said holders,

swab adapted to enter'tlie can and apply a liquid lacquer or coating material. to the interior surface of the can, and means for bringing the swab and can into operative relation with the swab inside tie cany and means for rotatin the can in respect to `the vab, sub stantia y as specified,

26. The combination with intermittently rotating carrier, of a series of can holders on the carrier, means for automatically delivering the cans "to said holders, a swab adapted to enter the can and apply thin continuous coating' or film of liquid lacquer or4 coating material to the interior surface of the can, and means for bringing the swab anu can into operative relation with the swab inside can and means for rotating the can in respect to the swab, and means for reciprocating the VVTab while in the can, substanti fly as 27. rlfhe combination wi of a swab having transverse longitudinal faces for engagement with the end and peripheral surfaces of a can adapted to enter the can, and apply a thin continuouscoating or film of liquid lacquer or coating of the can and can material to the interior su and means for bringing y lelie operative relation v .th the swabinside can and in rubbiz Contact with its nillerlo'r surface and means for rotating the can, .substantially as specified 28. .ln an automatic machine, for coating the inside of cans fitli li 'r protective material, the combination w a plurality of rotatable can holders, an i ermittently movable carrier upon whi i holders are mounted, a runway L 7'erfolg the cans to the holders, means r successively rotating the cans in the holders, a longitudi nally .reciprocating and nsversely mov able swab adapted to ei f the can mouth or opening, a feed trough .or the lacquer or coating material, a holder for said swab, a hollow perforated stem for said swab holder, a feed plunger communicating with said hollow stem, a lcngiti'dinally reciprocating slide for operating said swab, a tran 7e sely movable support for said slide, a discharge runway, a flame for flashing' or igniting and sterilizing. 'the freshly coated cans as they `pass ony the discharge runway and means for a holder, fl longitudine end peripheral surfaces of a can and adapted to enter the can and apply a thin continuous coating or film of liquid'lacquer or coating material tothe interior surface of the can, ind means for bringing the swab and can o operative relation with the swab inside the can and in rubbing cont-act with its interior surface and a feeddevcev for the liquid coating material, substantially as specilied.

80. In a machine of the character described, in' combination; a can holder; a swab adapted to enter the open end of a can while in the can holder and apply a thin, continuous coating of coating `material to the interior surface of the can, said swab havin@ transverse' and longitudinal faces for engagement with the end and side'surfaces of the can; means for bringing the swab and can into operative relation with the swab inside the can and in rubbing contact with the interior thereof; and means for feeding cans to said holder, substantially as specified. y 3l. The combination with a. can runway, of an intermittently movable can carrier, .a seriesof can holders on said carrier, means for successively rotating the cans, and a lreciprocating`swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer orvcoating material to the interior surface of the can substantially as specified.

32, The combination with a can runway, of an intermittently movable can carrier, a series of can holders on said carrier, means for `successively rotating the cans, a reciprocating swab adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, and means for reciprocating the swab in and out of the can and also while in the can, substantially as specified.

83. rlhe combination with a can runway,

of an intermittently movable can carrier, a,

series of can holders on saidy carrier, means for successively rotating the cans, a reciprocating swab, adapted to enter the can and apply thin continuous coating or film of liquid lacquer or coating material to the iiiterior surface ofthe. can, means for reciprocating the swab in and|out of the .can and also wbilein the can, and means for-transversely oraradially moving the swab while in the can, substantially vas specified.

Se. The combination with a can runway, of an intermittently movable can carrier, a series of can :holders on said carrier, means forv successively rotating the cans, avreciproeating swab, adapted to enter the can and apply a thin continuous coating or film of `liquid lacquer or coating material to the interior surface of the can, means'for re rciprocating the swab in and out of the can and also while in the can, means for transversely or radially moving the swab while in the can, and a can discharge runway, substantially as specified.

35. rEhe combination with a can runway, of an intermittently movable can carrier, a

series of can holders on said carrier, means for successively rotatingthe cans, a reciproeating swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or' coating material. to the interior surface of the can, means for reciprocating the swab in and out of the can and 4also while in. the can, means for transversely or radially moving the swab while in the can, a discharge runway and a flashing or igniting device, substantially as specified.

3G. The combination -with a can runway, of an intermittently movable can carrier, a series of can holders on said carrier, means for successively rotating the cans, a reciprocating swab, means for reciprocating the swab in and out of the can and also while in the can, means for jtransversely or radially moving the swab while in the can, a discharge runway,l a flashing or igniting device and a feed device for the liquid coating material,A substantially as specified.

37. The combination with a can runway, of an intermittently movable can carrier, a series of can holders, on said carrier, means for successively rotating the cans, and a reciprocating swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, said can holders each'comprising a pair of rotatable rollers, substantially as specified:

38. The combination with a can runway, of an intermittently movable can carrier series of can holders on said carrier, means for successively rotating the cans, and a Areciprocating swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, said can holders eachicomprising a pair of rotatable rollers provided with flanges at their ends, substantially as specified,

39. The combination with a can runway,

of an intermittently movable can carrier, a

' series of can holders on said carrier, means for successively rotating the cans, and a reciprocating swab, adapted to enter the can and apply'a thin cbntinuous coating or film of liquid lacquer or coating material to the interior surface of the can, said means for rotating the cansconsisting in an endless traveling belt 4engaging the can, substantially as specified.-

40. The combination with a can runway,

of an intermittently movable can carrier, a.

series of can holders on said carrier, means for successively rotating the cans, and a re- 'ciprocating' swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, said can holders each comprising` a pair of rotatable rollers, said means for rotating the cans consisting in an endless traveling belt engaging the can, substantially as specified.

i-1. The combination with a can runway, of an intermittently movable can carrier, EL series of can holders on said carrier, means for successively rotating the cans, and a reciprocating swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, said can holders each'comprising a pair of rotatable rollers provided with flanges at their ends, said means for rotating the cans consisting in an endless traveling belt engaging the can, substantially as specified.

42. The combination with a can runway, of an intermittently movable can carrier,` a

series of can holdersonsaid carrier, means for successively rotating the cans, a reciprocating swab, .andnieans for feeding or supplying liquid coating material, substantially as specified. l

v43. The combination with a can runway, ofl an intermittently movable can carrier, a series of can holders on said carrier, means for successively rotating the cans, a reciprotating swab, adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coating-material to the interior surface of the can, means for feeding-v or supplying liquid coating material to the outer longitudinal edge of said swab, substantially as specified.

lle. The combination with a can runway,

lof an intermittently movable can carrier, a

series of can holders on said carrier, means for successively rotating the cans, areciprocating swab, adapted toenter the can and apply a thin continuous coating or film of liquid lacquer -or coating material to the intcrior surface ofl the can, and means for feeding or supplying liquid coating material to the inne'r or upper part of said swab, substantially as specified.

45. The combination with a can runway, of van .intermittently movable can carrier, a series of can holders on said carrier, means for successively rotating the cans, a recipro eating swab, adapted to enter the can -andapply a thin continuous coating or film of liquid lacquer or coating material to the in terior surface of the can, means for feeding' or supplying liquid coating material and a discharge runwayfor the cans, substantially as specified. c i

e6. The combination with a can runway, of an intermittently movable carrier, a series of can holders on said carrier, means lfor successively rotating the cans, areciprouous coating or film'of liquid lacquer or coating .material to the interior surface of' the can, and means for bringing the can and swab into operativerelation with the swab inside the can, and in rubbing contact with its interior surface substantially as specified.

V4:8. The combination with oppositely mov.- ing devices for supporting and rotating a can, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapt-v ed to enter the can and apply a thin continuous coating or film of liquid lacquer or' coating material to the 'interior surface of the can, and means for bringing the can and swab into operative relation with the swab I inside the can, and in rubbing contact with its interior surface and means for .feeding or supplying liquid coating material, substantially specified.

49. The combination with oppositely moving devices for supporting and rotating a can, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the can and apply a thin continnous coating or film lof liquid lacquer or coating material tothe interior surface of the can, and means 4for bringing thek can and swab into operative relation with the swab inside the can and in rubbing' Contact with its interior surface and a can delivery de* vice,y substantially as specified.

50. The combination with oppositely moving devices for supporting and rotating a can, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the can and apply al thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can, means for bringing thefcan and swab into operative relation with the swab inside the can and in rubbing contact with its interior surface and a can discharge device,n substantially as specified.

5l. The combination with oppositely mov-- ingdevices for supporting end rotating a can, of a swab, means for bringing the can and swab into operative relation with the swab inside the can, a can discharge device and a :flashing or igniting device, substantially as specified.

52. 'I he combination with oppositely ineving devices for supporting androtating ay can, of ay swab having transverse and longi-l tudinal faces for engagement-with thev end and. peripheral surfaces of a can and adant- .70 ed to enter the can and apply a thin continuous coatin(In or film of liquid lacquer vor" coating material to the interior surface ofy 21.. the can, and means for bringing the can and swab into operative relation with the swabv 755 inside the can, and in rubbing contactlwitli g 'l its interior surface, means forl feedingfvor] supplying liquid coating material andy a. can delivery device, substantially asns'pecified.

The combination with oppositely. ricev-:f3.0I ing devices for supporting andv rotatingy can, of a swab adapted to enter the can and apply a thin continuous coatingorfilm-of@ liquid lacquer or coating material to theinterior surfacecf the can, and means lfor .85; bringing thek can and swab'I into operative relation with the swab inside the can, means f l y for. feeding or supplying liquid coatinginaf terial, can delivery device and` acandis-4 charge device, substantially ask specified.

54. The combination with oppositely-movi ing devices for supporting androtating a can, of a swab and meansfor bringing the i can and swab into operative vrelation with i the swab inside the can', means for feeding,9 orsupplying liquid coatingmaterial, a can delivery device, a can discharge device 'and' a flashing .or igniting device, substantially as specified. 4 ,l v,

55. rEhe combination with oppositelymove."4 ,i109 ing devices between and by which the can Vis l i" supported and rotated, of a reciprocating. swab, adapted to enter the .can and appljyla f thin continuousv coatingor film oi''kliquid.l lac 'ucr or coating material tothe interior surface of the can, and means for recipro-, eating said swab in rubbing Contact with. i, the interior surface of the rotating can slib-v l stantially as specified.l f i 56. The Combination withoppositely mov-.ffm ing devices between Aand" vby whichthe` can is supported and rotated, of a reciprocating swab, adapted to enter the cananda'pplya: thin continuous coating'or lilni'ffoflliquidv, lacquer or coating materialtothe interior;

surface of the can, andfayfeed'device for liquid coating material, andymeans for ,rev ciprocating said swab in rubbing Contact with the interior surface of the rotatingcanf l substantially as specified. f 'I 57. The combi-nation with oppositely'mov, ing devices between and by whichv the can fis supported. and rotated, yof a` reciprocatingY i' swab adapted toenter the can. and applyfa'vr f thin continuous coating or film of ,liquid lacquer or coating material'to theinterior surface of the can, andv a cank delivery i dievice, and means for reciprocating saidswab in rubbing contact withy the interiorv surface of the' rotating can sibstanti ally as specifieddf;l Q13,

of the rotating can substantially as specified. i

59. The combination with oppositely moving devices between and by which the can yis supported and rotated, of a reciprocating swab, a can discharge device and a can Hashving or igniting device, substantially as speci- 60. The lcombination with a can supporting means, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and f' adapted to enter the can and apply a thin con'tinuous'coating or film of liquid lacquer or coating material to the interior surface of the can, means for bringing the can and 25 swab into operative relation with the `swab inside the can,`and means for imparting relative rotation between said swab and can, substantially as specified.

61, The combination with a can supporting means, of a swab having transverse and longitudinal faces for engagement with the lend and peripheral surfaces of-a .can and adapted to `enterthe can and apply a thin continuous coating or film of liquid lacquer or coating material to the interior surface of the can,l means for bringing the can and swab into operativer relation with the. swab p inside the can, and in rubbing contact with its interior surface, means for imparting relaative rotation between said swabl and can and a feed trough for the liquid coating material, substantially as specified.

`62. The combination with a can supporting means, of a swab, adapted to enter the can and apply a thin continuous coating or lm of liquid'lacquer or coating material to-` the interior surface of the can', meanst for bringing the can and swab ,into operative relation lwith the swab inside the can, means .for imparting relative rotation between said swab and can, 'ai feed trough for the liquid coating material and means for maintaining the liquidv coating material at a constant level in' said feed trough, substantially as specied."` l

63. The combination with a can supporting means,vof= a swab, means' for bringing f the 'can fand. swab. into operative' relation i with theswab inside the vcan, means for imparting relativerotation between said swab and can, a feed trough for the liquid coating material, means for maintaining `the lliquid coating material at a constant level in said feed trough and a tank for the liquid coating material, substantially as specified.

and can and a feed trough for the liquid p gcoating material, a closed tank, a feed pipe `and a vent or air pipe connecting said tank :and trough, substantially as specified.

y 65. The combination with a can supporting means, of a swab, means for bringing the gcan and swab into operative relation with ;the swab inside the can, means for imparting relative rotation between said swab and can, a feed trough for the liquid coating ma` teriala closed tank, a feed pipe and a vent or air pipe connecting said tank and trough, said feed trough having a well and an over- :fiow lip, substantially as specified.

l 66. The combination with a can supportling means, of a swab, means for bringing gthe can and swab into operativerelation gwith the swab'inside the can, means for im- Iparting relative rotation between said swab iand can, and a feed trough for the liquid 'coating material, a closed tank, a feed pipe jand a vent or air pipe connecting said tank vand trough, said feed trough having a. well and the lower end of said feed pipe extend- ,ing below the level of the lower end of said vent or air pipe, substantially as specified.

` 67. The combination with a can supporting means, of'a swab having transverse and longitudinal faces for engagement with the 'end and peripheral surfaces of a can and adapted to enter the can and apply a thin continuous coating or film of liquid lacquer -or coating material to the interior surface of the can, means for bringing the can and `swab into operative relation with the swab inside the can, and in rubbing contact with its interior surface, means for imparting relative rotation between said swab and can, a `:feed device. for the coating material and a .pipe connecting said feeddevice with said swab,.substantially as specified.

68. The combination with a can supporting means, of a swab having transverse and longitudinal faces for engagement with the end and peripheral surfaces of a can and adapted to enter the can and apply a thin continuous coating or film of liquid lacquer or coatingv material to the interior surface of the can, means for bringing the can and swab into operative. relation with the swab inside the can, and in rubbing contact with its interiorsurfacameans for imparting re1- ative rotation between said swab and can, a feed device for the coating material, a pipe connecting said feed device with said swab and a tank and feed pipe leading to said feed device, substantially as specified.

69. The combination with acan supportaisance endandlperipheral vsurfaces of a' can. and

adapted to enter' the can and apply a thin;

continuous coating or film of liquid lacquer orfcoating material to the interior surface of "the can, means for bringing the can and.

, 'swab'into operative relation with the'swab Y ativel rotation between said swab and can, a

.holderoil' said swab having a hollow pery.forated stem', and a liquid coating material supply comnriunicating therewith, substantially as specified.

a can coating machine, the combinationv with a can coating device adapted to .enterthe'interior of cans through the open ends thereof for supplying and distributingV liquid coating material over the interior surface ofeans, of an igniting device for flashing and sterilizingthe freshly coated cans, and means for reciprocating said can coating device substantially as specified.

7l.4 In a' can coating machine, the combination with a can coating device adapted to enter the interior of cans `thiiuigh the open ends'thei'eof for supplying and distributing liquid coating material over the interior surface of cans, of an igniting. device for flashing and sterilizing the freshly coated cans and a runway for the cans adjacent to vsaid igniting device, and means for reciprocating said can ified.

r2. In a can coating machine, the combination with a pair of rotating can holding coating device substantially as spec- -roller s, of a belt for rotating the can, and

means for applying-a thin continuous {ilm of coating material to the interior surface et the rotating can, substantially as specified.

73. In a can coating machine, the combi-- 'natio-n with av pair of rotating can holding rollers, of a belt` tor rotating the can, means for applying coating material to the interior surface of the' rotating can, and a runway for deliveringr the cans to said Wcan holding rollers, substantially as specified.

74.-. In a can coating machine, the con" nation with a pair ofrotating can holding rollers, of a belt'ior rotating the can, means for applying coating material to the interior surface of the rotating can,'a runway for delivering the .cans to said can holding rollers and an igniting device, substantially as specified.

75. In a can coating machine,the combination With a pair of rotating .can holding rollers, of a heltfor rotating-the can,A means for applying' a thin continuous film of etating material to the interior surface ot the rotating'can, a runway `for delivering the cans to said can holding rollers and a can discharge runway, substantially as specified.

76. In a can'coating machine, the combi- I nation with a pair of'rotating can 'holding for applying coating material to the interior surface of the rotating can, a runway `for delivering the'cans to said can holding rollers, a can discharge runway and an igniting device adjacent to said can discharge runway, substantially as specified.

77. In a can coating machine, the combination with a carrier, oi' a'plurality o'f pairs of can holding rollers thereon, and a device adapted to enter the cans and apply a thin continuous iilm of coating material to the interior surface of the cans substantially as specified. f

78. In a can 'coating machine, the combination with a carrier, of a plurality of pairs of can holding rollers thereomhaving flanges at their outer ends to-hold the cans in position longitudinally, and a device adapted to enter the cans and apply a thin continuous -film of coating material to the interior sur- 'face of the cans substantially as specified.

7 9. In a can coating machine, the combination with a carrier, of a plurality of pairs ot can .holding rollers thereon and a can delivery runway, and a device adapted to enter the cans and apply a thin continuous ilin et' coating material to the interior surface ot the cans substantially as specified.

80. ln a can coating machine, the combination 'with a carrier, et a plurality of pairs oit' can holding rollers thereon and a belt for rotating the cans on said can holding rollers, and a device adapted to enter the cans and apply a thin continuous lilin of coating material to the interior surface of the cans substantially as spcciiied.

8i l a can ceatii'ig iuacl'iine, the combith a. carrier, or a plurality oli pairs .lding rollers thereon and a lieve, rota L the cans on said can hol and a can delivery. runway, and adapted to enter the c nnd apply a thin continucais film of coating .material to the interior surface ci the cans substantially as specified. f

82. ln can coating machine, the combination with a car-rior, ol' a plurali ty ot pairs nii can ln'ilding rollers ther in and a belt for rotatii'ig the cans on s. l can holding rollers, a ain delivery runway and a can discharge runway, and a device adapt-cd to enter the cans and apply a thin continuous iilin of coating material to the interior surface of the cans substantially as specified.

in a can coating machine, the combination with a carrier, of a plurality of pairs of can holding rollers thereon and a belt for rotating the cans on 'said can holding rollers, a canI delivery runway, a can' discharge runway and an igniting device adjacent to said discharge runway.v substantially as specified.

84. In a can colt/ing machine, the combination with a carrier, of a plurality oflpairs of can holding rollers thereon and a belt for rotating the cans on said can holding rollers,

a can delivery runway, a can discharge runivay, an igniting device adjacent to said dis' charge runway, and means for applying coating material to the interior surface of the can, substantially as specified.

85. In a can lacquering or coating inaehine, the con'xhination -with a can feeding device, et' a can coating device, a can discharging device and a can flashing device, said devices operating upon each can succes` sivcly and operating upon different cans simultaneously at diiiierent stations, and

. means for reciprocating said can coating device substantially as specified.

8G. lin a machine for applying a protective coating te the interior Surfaces of sheet metal cans, the'comhination with a can runway, of a .reciprocating can coating device adapted to enter the open ends of the cans and apply to the interior surfaces thereof a thin film of liquid coating ma terial, ineans for feeding and registering the cans in line With said coating device, means monaca for rotating the cans While being operated upon by said coating device, and an igniting device for dashing the cans as they roll along the runway with their open ends adjacenlL to said igniting device, substantially as Specified.

l8T. The combination lWith a can runway, of an igniting device for flashing the cans as they roll along the runway With their open ends adjacent to said ignitingdevice, a re-4 ciprocating can coating device adaptedrto enter the open ends of the cans and apply a thin' tilni oi" liquid coating material tothe interior surfaces of the cans, and can. rotat-y ing means in registry with Said coating device, and means for delivering the cans to said can roeating means, substantially as specilied.

JGHN Gr. HGDGSON.

Witnesses:

H. M. MUNQAY, EDMUND Ancocii.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2604871 *Aug 20, 1948Jul 29, 1952Continental Can CoApparatus for removing excess wax coating from can flanges
US2682253 *Mar 15, 1952Jun 29, 1954Scherer Corp R PColor banding machine for cylindrical objects
US4240373 *Dec 4, 1978Dec 23, 1980Sprimag Spritzmaschinenbau GmbhSpraycoating apparatus with a horizontal run-in for cylindrical bodies
US4455328 *May 17, 1978Jun 19, 1984Metal Box LimitedMultilayer, hardening
Classifications
U.S. Classification118/47, 101/37, 118/DIG.300, 118/215, 118/232, 118/318
Cooperative ClassificationY10S118/03, B05C3/15, C23C4/124