US2334087A - Coating apparatus - Google Patents

Description

Nov. 9, 1943. e. GOEBEL ETAL I COATING APPARATUS Filed Oct. 17, 1958 4 Sheets-Sheet 1 I72 izeni'ors: George Ggehe'l JZzrr Nov. 9, 1943. G. GOEBEL ETAL COATING APPARATUS Filedon. 17, 1958 4 Sheets-Sheet 2 v m e, w M

'diar HJEau W War-Regs.

Nov. 9, 1943.

G. GOEBEL E .TAL 2,334,087 COATING APPARATUS Filed 001:. 17, 1938 4 Sheets-Sheet 4 Patented Nov, 9, 1" a f A zesioew V p A comma APr -iteii si The presentinvention re1ates toa c0ating' apeaseme atelier .1 m, na fimere, M1, assignor's to Crown'C'ork fiscal Company; 1110., i Baltimore,Md.;a;corporationo NewY ork Application ne ther-.11, 1912's; Serial No. 235,496 r J g irigi 1 isv a; plan bf grantee erspe 5 paratus and, more-particularly; to an apparatus for coating cone-top cans-such a's are used ior packaging beer and other beverages-p Cans intended for the: pack ging ofl beverages must be coated on both the interior and exterior surfaces, the coating un -the exteriorbeing of a ten nature to'preventrust. Difficultiesihavelheretoiore been experiencegi in coating the entire exteri'or surfaces; of such. cans; including the I Iip or of the can, duringzpassage oflthe can through a single machine. That isto say; 'all of the: exterior portion of the can! exc'ept'theilfip or mouth can he thoroughly coated; by supporting the canupon a,- memher inserted into the mouth of the can, but the supporting of the can by a mouth e'ngaging member interferes; the

on the line 858 01 figure ane ,1

thorough and complete coating of the mouth itseIfl' Because of thetabo ve diflicultijesj the coatirig of the exterior of a; can hasfhei'etofore beeri'earried. out upon two differentmechanis ns one to coat" the exterior ofthe' bodyportion or the can and the otherto" coat the I nquth or lip ofthecaii.

The principal objectgoi" thqpresent' invention 1 is to' provide an apparatus of tsuchi construction that a can. or. similar: articlemay be. thorollghly coated over itsentir'e exterior. surfacejncluding its mouth or other aperture, during passage throughasihgreapparatus; I i t Aifu'rthei' hjfectoi theinyntiori is to. provide an apparatus "at thefltype described: and in' which the container other article he, supported any coatingrappliedtheretou 3 Another object of. the i'nvenition the provision in. article coating. -o 1 -simi1ar apps.ratus c t HPRM 1; o h c e ri siv'elyat two different points on the artielesog 40 that,- the article may be -successively eoatedeover "j difierent portionser-areasthereon f v V Amm QP eQ -OW-m ment n i at a meansgtoe transfer theartieles; from one, suppprting n eansstoanotherg s pportmg meansgwithvand out iritemptingi the gtraveL of: the: article; marring it mza-nmwaxg I j I Figure 4is ardetailyertical section ing portion of the apparatus Figure '2 isa vertical longitugiinai sectional View oi the article. transfer mechanism. 1.

. "Figure 3 is aside elevation of the infeedlor spraying portion-of therapparaltus allvie'er mg. the transfer in side elevation. ,i ure '5' is a transverse vertical 'sectiona onthe line 5-.5 of Figure 3- L r Figure Sis aiongitudinal verticalfsiecti har -gt showing the inileed and; spnayirig portion; of the apparatus.

Figure 7 is t l n detail view: o ffthe: article Ste- 7 portingconveyorn Figure 8 a trahsyersevertica1.sec on I Eigure 9 is artrahsv "se' on the line 9-4: rr'igurge;

The structure and ope paratus. may be. generally ees mhee'asre11ew s meembodiment. oflthe apparatus disclosed here- 4 in is primarily intended. fo'r appIying lacquer to r lithe. exterior of. cone topped cams, qthat is cans falling into ampocket ofi an inreed spider z shown irijigures-l andfi; thegiipperrun; fthe M 22 of the apparatus moves l alon'g ossibility of marririgf the-"container or esteem Stm'anothe object o-i therinvention-isithe: pro- 1 vision ot means to: can, or other'amticie and; ta so; move the: article during thexcoating operation; that: they(matingw substance wiflli be thoroughly a-ndi evenly distributed thereom. r

Other obiectsand; advantages ofrth'e invention will. be apparent'fromthe; folfloswingz specification and dmawingsiwhereimahaving a coneshapedhtop walllandl almoutfrlor pouring spmit formed lto receiyze aJcap of the emwrrtypet ,l t r I t- I r Cans to be coatea il'are. deIiweredltq-lthefinfeed anct spraying portion. ['8 ct the machiiie through an inieed chute. ZOKEiguIes I and 3')", each can As 'mainconveyor,

side theihieeii, spider 421 .angI each can C: moving seating mechanism li and. so that; asshcwn pm- 1 'gressively in. the lower portion ofiiFigure {7, the

mouth of the can will bebrought into engagev ment with an aligned supporting. e1ement,,head' or Efach supporting. device or Stud 24' a spindle 25.- which. is rotatable ih the conveyor chain 22, and, immediately after-the can hasbeen positioned. on the supporting.'st iizl jo'nhead-1 1- a pinionor sprocket. 21E mid-way a: spindle 25 will come. into engagement-mt the upper run of an endless chain 21 (Figure 6 movingrbelow the conveyor. jzrand. in opposite direction to ,hhed r iemor m ve n of h at mwi lbi 'cated by the airrowsin Eigure 'h As aresiil Spindle 251351111 the Gem 6 canri ect thereby rotatedzxon'their' longitudinal axes, During siieh downupon thespider will be forced; laterally of v the latter by analigned reciprocables rodbf a:,can

transfer drum "32.

rotation the can will move beneath a pair of sprayguns 28 and 2811 (Figure 3); one of which is positioned to direct lacquer-upon the bottom wall of the can, the other gun being mounted to direct lacquer upon the side wall, cone top and the exterior portion of the mouth of the can. Since the can is rotating on its own axis during the spraying, its'exterior will-be entirely coated with thelacqu'er. i I

' During the above spraying, the aligned rod of the can seating mechanism 23 is in contact with.

the center of the bottom of the can, but the rod will move out of contact with the can when the spraying is concluded, the can remaining upon the supporting element or head .24Lto be carried through'the drier portion l9. As" described-inthe divisional application for Article handling apparatus, Serial Number 465,380, filed Novem' --ber 12, 1942, by Helene Goebel, administratrix of George Goebel and Harry A. Rau, the conveyor 22 moves alternatelyback and forth inthe drier 19 so that the can willbe subjected to drying treatment for f approximately fifteen minutes. Throughout 'fih finitial and greater part of its travel the j l irj the. onve o 2 m v through the upper part of the drier, where it willbe subjected to the action of heated'air, but the lowermost run oi the chain; in the drier l9 moves through a cooling chamber so that each can will be fairly cool when it leavesth'e drier; As indicated'in 'Figuref"3, thef'lowe'rrun offconveyor 22 whichimcvesfrom the 'lower portion'of the drier V I5 will move about a pocketed spider 3| andwhile 'thechain is moving aboutthisspider, the gcans C will-be removed from the supporting heads 24 of conveyor 22 and will be positifned upon a transfer drum 32(Fig1ire's 1 to 3 p I "As generally illustratedfin Figure 3, drum 32 .is provided with a plurality of axially extending grooves in. its periphery,'fi n which the cans are received; Whilerct ating with" the drum, the

the drier [9 so thatthe canwill again be in the v drier for approximately fifteen minutes. ,Also,

during all of this travel through theoven, the

can C will'be subjected to theaction of heated;

air, as described in said divisional application. j The cans may be removed from the carriers 35 by a removing mechanism such as disclosedv in said divisional application The detailed "construction or the various mech- 'anisms of the apparatus is set forth below.

Infeed mechanism and mechanism cans by engagement with can mouth i Referring to Figure 3, the infeed chute 20 is :iorm ed of substantially vertically extending rods ysecur'ed together in suitable arrangementtd guide a'cone 't'op can downwardly through the,

sameTwith the longitudinal axis of the can lying in ahorizontal plane, the lower end of the chute I terminating above the rotary infeed spider -2l.

As best-shownin1Figures.1 and .6,'the infeed g- .pider .2,|:is formed of two discs 5llsecuredito a hub 5 I jkeyed on ashaft52 journaled between the side frame elements 54 and 55.1: c

Shaft 52 isrotated by reasonotth ea. an

it carries-a large sprocketwwheel 58,formed.of"

spacedfl'discsf; havingnotches 59 in-ltheir pe- 1 'ripheries; which notches are engaged by..the

' scribed. r 0 i As part or the-can seating mechanism23, shaft cans willfbemove'd totheffarends of the'grooves so. that theirfconical'ends will be positioned in v T After such" movement with the "drum'32 and 'disc 33, the cans willbe re- .ceived in pockets of a' spider 34 formed of a pair" of aligned and pocketed discs, spider 34. being fixed tothe same shaft as spider'3l, as indicatedqin Figure 1. Canslcarried vby thespider 34 will be in axial alignment with cup-shaped suDDOr'ting elements 'or carriers "carried on the spindles 25'at the opposite end thereof from the vheads24. 'The carriers 3.51am of sufiiciently large internaldiameter to'receivethe base portions fofithe cans, 'and the cans will bemoved into the carriers 35 by'afixed inwardly inclined;

ide e e Figure 1. I I 7 As indicated in Figures 1' and 3, shortly after or strip 35a shown in plan in thatthe spindle '25" with'which the carrier 35 alignedfpockets of a'disd33f'which rotates with y viri'thei twov laterally spaced endless chains 6llwill spindles. 251m main-conveyor chain 22 ;as--; the

main conveyor chain .moves 'pove'r the wheel-:Sl,

bya 'drive, imparted thereto ashereinafter'de- 52.also has a pair of spaced sprocket. wheels 60 secured thereto, preferably on a common hub 60c, and a paircf relatively; spaced sprocket chains-6| move about thesesprocket wheelarand also about asecond pair of'sprocket wheels}? positioned somewhat further along the framev of n the machine as shown in Figure 3, so that the upper. run of the two chains 6| will be parallel to the upper run of inain conveyor chain 22.

Atthe momentthat a can 0 is positioned in one set of thep ocketsprovidedin the peripheries 'of the'di'scs'liflof infee'd spider 2 l, onelof a series o f';.:rfod's or plungers 63 each reciprocably mounted lq e pppositef the" central portion of the bottom 'of{ a"c an, as best shown in 'Figure'l. As de- 60 a canfis'positioned in one ofthe carriers' 35, the "section of the chain 22 'uQ Tlwhich that carrier is positioned will move over the previously mentioned oppositely moving endless chain 2'! so scribed in said divisional application, the'rocl 53 is urged toward thebottomof the can bya spring "surrounding the rod and positioned between the adjacent chain 6! and'the head. of j an angled bar, which angled bar extends along the rodand 'backover the chains 5| to the opposite and rear end of rod. 63'. 'The rear end of the rod 63 has a roller 66 journaledthereon; 'whichroller engages a cam track 61 extending about an arciiate plate fixed to the framework of';the* apparatus-* :and during movement of a rod"53 along thjlower run of the path of travel of the chains 6 I; each,

spring is-freeto-move its' rod; to. its extreme inward p'osition (the upward position or Figured), this movement being suitably limited. 'Whenthe roller 66 of'the rod engages'the cam shoulder 61, the rod will be retracted through the chains 6| so'that its inner end will be clear of a can-C just-beingpositioned in the infeed spider 2|. 11inmediately thereafter, I the roller I will move ofl the; upper and inwardly inclined end "of cam 'shoulderjl so thatvthe inner end of the rod will contact with the bottomwall.'of"the can for conveying I As iiiai atedjinrigure i, amp ng-urges the corresponding rod 63 toward ,the' spider 2| winch has been de osited in; the pocket or the infeed spider 2'I.- Th'spring associated. with each rod is or surficient strength to slide the cam through the pocket'of the infeedspiderll to bring the mouthof the can onto the aligned can supporting head 24" of .thezmaln conveyor cnainn; r I

As best shown in Figures 7to19, each cansup porting head 24' is pinned to;nei 0f the spindles 25 included in the main conveyor chain 22, and

the movement ofa spindle 2 5 along the path or the upper run of conveyor 22, rollers 92 freely; I

mounted on the link connecting pins 25* will ride along fixed trackways 9a Thus, the conveyor 22 reduced. diameter, as indicated ail 12 inFigure 8, to cnablethe mouth of the canto freely slide upon the; head. However, the reduced portion 12 is of suflicientlyv large diameter to prevent the can from tilting suflicientlylfar to fall fromthe same; Theinner end of thenreducedportion 12 terminates man outwardly facing shoulder 73,

as shown in Figure 9;:vwhich limits the inward movement of the can C with respect torthe head. After the main conveyor 22 moves a very short distance in the direction indicated by the arrow B-irr Figure 1, each can C will be freed from the infee'd spider 2i, and the presser rod63 aligned with each cam will be carried by its simiwill be prevented .irom twisting laterally. I

As indicated in Figure 6, thema ic conveyor 22 moves out or contact with the endless chain 21 shortly after a can has passedbeneath the spray guns, and the rotation of the cans will cease at the latter point. At the same time, as indi- .cated in Figure .1, thexpresser rod 63 which has heretofore been in contact with the bottom of the can, will be retracted from the can by reason of the fact that the roller 66 on the presscr and will come into contact with a fixed cam shoulder 95 arranged concentric with the axis or the sprocket wheels 62, cam shoulder 95 being. ofsuch conformation that it will retract each presserrod 63"from;a' can bottom" as the presser rod moves downwardly and about the sprocket Wheels 62 larly' moving supporting chains i filc awayqfrom the stationary cam 61: so that the roller 66' of that rod will be entirely disengaged from the cam 61 and the rod will be held in contact withth'bcttom Oi. the can by-lts: spring 64, as indicated in Figure ll Almostimmediately thereafter; as shown in Figures 6 and '7; the sprocket wheel 28 fixed intermediate the length of the can Supporting spindle 25 will contact with the sprocket chain 21', which moves about sprocket wheels 8| and .82 (Figure Gland in the opposite direction to the direction of travel of main conveyor 22,Ias shown by thearrows in Figure 'l. Sprocket chain 2! is driventhrough the sprocket chain 85 (Figure 3) which movesiabout a sprocket ;,wheel at the outerend of the shaft 86 which carries sprocket wheel 8|; r I I v v Since the presser rod 63 is at thisumoment in spider'ZI; I As' described in said divisional: application, the

withthe rod' carrying sprocket chains 6 I.

' Whilethe' cans are moving to the oven or drier I9 on themain conveyor 22, thepresserrodsiii will move through the lower run of travel of the can seating mechanism chains 6| to again ride along the stationary can shoulder 81 to engage another can newly positioned upon the infeed drier i9 is of such construction'that the coating applied to a can will be entirely dried during contact withthe bottomof the can C, the can a spray of lacquerj against thgbottornfwall of the can" and also against the side wall of the can. The spray gun 28a is supported at such an angle by the framerflfl that a'wm direct lacquer against the conical top portion" of; the can and somewhat about the exterior of the can during the spraying, lacquer will be deposited over all of the above described exterior surfaces of the can. Also, by reasonof the fact thatfthe rotation of the cans continues for a brief time after each can has passed outof therange of the spray guns, the lacquer will be freely flowed over such exterior portionoi the canstdbe evenly distributed thereonz Due to the 'f act that the can is supported byvits mouth, as indicated in Figure 9, the s ray gun 28c may not projcctiacquer over the entire lip-surface ofthe can. l 1

As shown in Figures 8and= 9, thelupper runrof can rotating chain z'l mcvcsalonga "fixed guide v mouth. Due to the rapid'rotation of the can a movement of the can through the drier.

. The mechanism for transferring cans from the studs 24 to the carriers35 is described in detail in said: divisional application. However, the opfrom the following description thereof.

After leaving the drier IS, a can mountedvon a'can sup orting head M and moving with the eratlori of this mechanism will be entirely clear "lowerrun of the conveyor 22 will move to the left as viewedin Figures -1 and 3 so that the can will be carried beneath (and entirely clear of) the @infeed spider 2| to the extreme end portion of v the run oi: the c0nveyor 22, which encircles a large double sprocket wheel 126 bestshown in "Figure lph sprocket wheel I26 is fixedto a shaft I21 (Figure 3) suitably journalled'in the side frames of the apparatus and, as shown in Figural, is

V geared asat I28 to ashaft I29 at the extreme and of the apparatus which is driven through a series of sprocket chains I 290, from: the motor The-two sprocket chains of which the main conveyor, 22, is formed will be engaged by the two sprocket wheels of double sprocket I26 so that therspi ndles 25 will be maintained horizontal.

Shaft I21 has the spider 3| fixed thereto alongsidethe sprocket wheel I26\and thespider 34 is fixed to shaft I21 at the opposite 'side of sprocket 1 I251 As shownin Figure 1, as a spindle 25 moves adjacent double sprocket I26, the can C carried by the supporting head 24 of thatspindle will move into a pocket/of spider 3i and rotation of the s pider" with shaft IZlwill move the can upwardly as shown in Figure 3. Just before: moving upwardly about the spider 3|; the side wall of veach can willi contact with'a. pair of guide strips 530 (FigsfZ and 3) which will forcethe can lie in a horizontal plane.v r I A lateral guide bar I35 is positioned adjacent the guide bars [36, guide bar I 35 being inclined outwardlytoward the planer-0t the spiderilc so ported in the pockets of spider 3| spider-3L with the side walls of the cans.

helical guide bars I32 (Figure 1); surround the periphery of transfer drum 32, the infeed ends I33 of the bars I32 projecting between the discs I34 of which the sprocket 3| is formed, with the extreme lower'ends of the infeed portion I33 f the guide bars positioned substantially directly between the axes ofthe spider 3| and transfer drum 32 and betweenthe two. discs of which spider'3l is formed.

By theabove arrangement, each can will be freed from its supporting head 24 immediately after it comes in contact with the lower guide I30 and lateral guide I35 and the cans will then be moved'up the lower guide I30, free of the conveyor 22, by engagement of the pockets of th Just after the can thus carried by the spider 3| comes into engagement with one of the pockets or grooves I3! of transfer drum 32 fixed to shaft I29, the opposite portion of the can will also come into contact with the infeed'end I33 of the helical guide bars I32, so that the can will 'now be completelystripped from'the spider 3I'and will move upwardly'with the transfer drum 32.

' A'pipe I40 of helical form (Figure 1) also encircles the periphery of transfer drum 32, this pipe being positioned somewhat to the side of the'helical guide bars I32 nearest the plane of spider 32, and between these guide bars andthe periphery of the transfer drum (Figure 5) Pipe I40 has apertures therein'on" its surface facing along the grooves I 3| and the pipe is supplied with compressed air from a suitable source through a line MI. The guidebar 35a, also of generally helical form, is positioned onthe side of the guide bars I32 opposite pipe l lfl' and bejtween'guide bar I 32 and the periphery of the transfer drum. The guide bars I32 and 35a and.

the pipe I40 are suitably supported by brackets 7 adjacent the drum 32' as illustrated in Figure 5.

By the above construction of guide elements about the transfer drum 32, as soon as a can is completely freed from the spider 3|,it will be forced upwardly as viewed in Figure 1 by the jets of compressed air issuing from the pipe I50. Such movement of the can along the grooves ISI will cause the'can tobe moved out of the vertical plane of the spider 3| and into the plane of spider 34. It will be observed that the provision of the helical guide bar 35a opposite the compressed airpipeidfl will cause cans to. be

moved along the grooves I3| of the transfer drum bya continuous and gradual movement. That is to'say, there can be no sudden movement of the cans along the grooves such as might cause the mouths of the cans to be dented.

Each can will remain upon the transfer drum 32 during one full revolution of the same, and, as best indicated in Figure 1, at the time that this one revolution is completed, the mouth" of the can will project from the far edge of the drum and will partly lie in the spider or disc 33. In other words, as indicated in Figure 1, each can enters the drum 32 directly in the plane of the spider'3l but,"-beca.use it moves in a helical path, leaves the drum in the plane of spider 34,

somewhatasindicated at A inFigure l, iAt this moment, also,-the can will ride, beneath an arcuate guide bar I45 (Figure3) whichbverlies the can receiving spider. 34 r and the-can will be stripped from drum32. and-placed in an alignedpocket of spider 34. As shown in Figures 1 and 2, the substantially helical guide bar 35a which surrounds transfer drum 32 has itsbutfeed end |43a extending away from: the transfer drum 32 withlthe extreme end;portion thereoflretum bent toward thevspider 34Lwithethe result that as upwardly moving. cans are removed. from-' the' transfer spider by fixed, arcuate. guide ,|45,;the

cans will simultaneously be moved axiallyof the spider 34 and into cup-shaped holdersprovided on the main conveyor; 22 andqofsufllcient diameter to receive the body portion of'the can,

but of such length that, at least the conical-top wall ofthe can will projectitherefrom.

After a can has been positioned in the cup-,

shaped carrier or'supportingme'ans 3.5 as illustrated in Figure 1, the movement ofithe-main 1 conveyor 22ltoward the drier will bring the'pro- Y l jecting cone-shaped portion'of the. canbeneath the spray. gun 36, as shown'in Figure 1; :Gun 36 is supported at such an angle that it will direct lacquer upon the mouth of the can, including the inner wall of such mouth.- Duringumovement beneath the spray-gun 36; the spindle 25 to which the carrier 35 ;is secured will be rotated by movement of the endless chain 21 beneath the same and'in'engagement with-the sprocket. 28

which is secured to the spindle.

After the spindle has moved out of engagement with the endless chain ZIandfrom" beneath I spray gun 3B, the can C'will be carried intdthe' v drier I9, following the samecourseof travel that it followed when supported upon'the' supporting head 24. f However; as describedin :saidoivisional application, during the: present" fmov'ement through the drier,the can will move-onlythrou'gh the heated portion of the drier; that is, when the carrier 35 leaves the rear end of the'oven; the can will be removed by a suitable clan-reinow ing apparatus such as disclosed in saiddivisional application. 7

The operation of the entire apparatushas'b'een I set forth in the general description'and operation of the apparatus at the 'openingportionof this specification. Figure l illustrates how two apparatus of the present'inventon maybe positioned side by side. in such a way as to conserve floor space, namely by' having the drier blower and motor of one drier I9 onset with respect to the blower and motor of the other drier and with cetera, positioned be-j these blowers, motors, et tween the two apparatus.

It will be understood that the vario'us' mecha I nisms described as forming part of the'present apparatus may be used either together asde- J scribed, or as portions of other article handling apparatus. Y 1

All structure disclosed but not claimedherein is claimed. in said divisional application filed NovemberlZ, 1942. e I

a The terminolo yeus'ed in the specification is for thepurpose of description, the scope of the invention being indicated in the. following claims.

Weclaim:

1. In combination, a conveyorpspindles I rotatablewith respect to the links, of said conveyor, means on said spindles to support articles, a pinion on each of said spindles, meansto a rotate said spindles during movement. of said con- I veyor to rotate the articles supported by the spindles, said means comprising a moving chain psitioned to engage the pinions on said'spindles and moving in the opposite direction from the direction of movement of said link conveyor, and means to coat the articles during their rotation.

2. The combination in a coating mechanism, of a conveyer, a spindle rotatable with respect to said conveyor and extending therethrough, stud means'at one end of said spindle to extend into the open end of a container to sup-port the same, cup shaped means at theopposite end of said spindle to enclose a portion of;a container to support the same, and means to coat the containers while supported by said two last-named means. y

3. The combination in a coating mechanism, of a conveyor, means on said conveyor to support an article by engaging a portion'thereof, means on said conveyor'to support the article by engaging another portion of the article, coating means in the path of movement with said conveyor of said two last-named means, and means to transfer the article from one of said supporting means to the other of said supportingmeans.

4. The combination in a container coating mechanism, of an endless conveyor provided with transversely extending elements, one end of each element being of stud form to extend into the open end of a container, the opposite end of each element being of cup-like form to enclose the body portion of a container, means'to transfer. containers from one end of an element to the opposite end cf'an element, and coating means in the path of movement with said conveyor of bothends of said elements to coat articles supported at such ends.

5. The-combination in a container coating mechanism, of an endless conveyor provided with transversely extending elements, one end of each element being of stud form to extend into the open end of a container, the opposite end of each spindles during movement of said conveyor to rotate the articles supported by the spindles, said means'comprising a moving. chain positioned to engage the pinions on said spindles and moving in the opposite direction from the direction of movement of said link conveyor, means to coat the articles during their rotation, and fixed means to support the spindles during their rotation and to support the spindle engaging portion of said moving chain. a

means in means to transfer articles from a member of one 7. The combination in a coating apparatus, of a conveyor means, a plurality of studtype membersextending in one direction from said conveyor means, a plurality of cup type supporting members extending in another direction from said conveyor means, said stud type supporting members being adapted to engage the interior of a hollow article to support the same and said cup'type supporting members being adapted to have articles positioned therein for support, coat- -ing means adjacent the path of movement with the conveyormeans of each type of member, and the path of travel of said conveyor of said types to a member of the other type.

The combination in a coating apparatus, of

a conveyor means, a plurality of studtype members extending in one direction from said conveyor means, a plurality of cup type supporting members extending in another direction from said conveyor means, said stud type supporting members being adapted to engage the interior of a hollow article to support the same and said cup type supporting members being adapted to have articles positioned therein ,for support, coating means adjacent the path of movement withthe conveyor means of each type of member, means to position an article in supported position with respect to one type of member, and means in the path of travel of said conveyor means to transfer articles from a member of one of said types to a member of the other type.

9. The combination in a coating apparatus, of an'endless conveyor provided with two series of article engaging elements, one series projecting from the conveyor at an angle to the other series, one series of article engaging elements being of such form as to engage the interior of a hollow article, the other series of article engaging elements being of a form to engage the exterior of an article, means to transfer articles from the elements of 1 one series to the elements of the other series, and coating means inthe path of movement with the conveyor of each series of elements to coat articles supported by the elements.

10. The combination in a container coatingmechanism, of a conveyor, a plurality of trans-.

versely extendingspindles carried by and rotatable with respect to said conveyor, a stud element at one end of each spindle to extend into the open end of a container to support the same, a

cup-shaped element at the opposite end of each spindle to enclose a portion of a container to sup:

- port the same, means to transfer containers from the elements at one end of the spindle to the elements at the opposite ends of the spindles, and means in the path of movement with said conveyor of both ends of the spindles to coat containers supported by such ends.

GEORGE GOEBEL. HARRY A. RAU.

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