US2460866A

US2460866A - Can body solder fluxing mechanism

Info

Publication number: US2460866A
Application number: US562154A
Authority: US
Inventors: Delbert E Wobbe; Walter F Pillnik
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1944-11-06
Filing date: 1944-11-06
Publication date: 1949-02-08
Anticipated expiration: 1966-02-08

Description

Feb. 8, 1949. woB AL 2,460,866

' CAN BODY SOLDER FLUXING MECHANISM Filed Nov. '6. 1944 4 Sheets-Sheet 1 if 7 Z] IN VEN TOR BY W h .ggmg j Mim Feb. 8, 1949.

Filed. Nov. 6 1944 D. E. WOBBE EIAL 2,460,866

CAN BODY SOLDER FLUXING MECHANISM 4 SheetsSheet' '2 Feb. 8, 1949. D WQBBE r AL 2,460,866

. CAN BODY SOLDER FLUXING MECHANISM I FiledNov. 6. 1944 4 Sheets-Sheet 4 Patented Feb. 8, 1949 STATES OFFIE GAN BODY SLOLDEB FLUXING.

New Jerseyv Applicati n. N vember 6, .44%, Se al cififiqli 9 C aim 1.

The present invention relates to a solder fluxing mechanism for can body making machines and has particular reference to an. improved dual roller fiuxing mechanism-for applying flux to a side seam. of a can; body-by a unit lifting action of the rollers while maintaining the roller engagement.

An. object of the; invention is the provision of a flux-inc mechanism utilizing a pair of rollers having a. common pivotal mounting, one. roller applyi flux n t e side. s an. of a c n body and t ot e rol r cous au lr sup i ux to, the flux applying roller.

A other object o t in e ion i th pr vision of a fluxing device of; the characterdescribed: wherein the rollers. are carried, in a flQatparty of the pivotal mounting which has seli adjnsting. movement on a bracket connecting with a. swing shaft Another obiect the provision of a fluxing device of the character e c i ed. wher n. he engaged. rollers are rotated at the same peripheral speed and wherein adjustment may be had between the rollers to compensate for the amount of engagement. incident to. providing the desired thickness of flux applied to. the side seam of the can body.

Yet another object is the Provision of a fluxing device for use in fluxing' the entire side seam of a can body While at rest upon the horn of a body making machine.

Still another object is the Provision of a fluxing device utilizing a flux applying roller which is brought into engagement with the side seam of a can body to. perform the during; operation, such movement taking place s.imu1t 30 4. 1? with the movement of a flux supply roller under a unit actuation so that full 1391 3; encasement. is maintained throughout the operations. f. he. machine,

A further object of the invention is the provision of a. fiuxins device for applying; 1111;; to the side seam of; a body, pro is n bein d for e ectin he n e enc a an bod in correct position for iiuxing and for interrupting the fluxius action and nulliiying the normal movement oI, the applying roller in the absence of such a can body. 7

Numerous other obiec an adv n a es. oi th invention will be apparent as; it better understo d 20m h iqllewios describiiq t. bi in c nnec ion ith the @429 drawings discl sa premised. 1st. ther ci.

R ferrin t the dra in Eigure. 1, is a top. plan view of a solder. fiuxing mechanism embodyif g the instant invention;

Fig... 2 is a combination end elevation and vertical section of. the mechanism as viewed alon the broken section line 2-2 in Fig. l with parts broken. away;

Fig, 3. is a transverse vertical sectional view taken substantially alongthe line 3-3- in Fig. I and showing the fluxing mechanism in position relative to a can body making horn;

ljig; 4 is an end elevation of the mechanism illustratedin' Fig. I as vie-wed from the left-side and showing in addition a body maker horn in ec n c 5 is a sectional detail. taken substantially along the line 5+5 in Fig. 1, with parts broken away;

Fig. 6 is a. perspective view of the. fluxing mechanism illustrating a tubular canbQd-v in. fiuxing position on a can body maker horn; and

Fig. '7 is an exploded View in perspective illusr trating parts of the flux int rrupti g. device used in the fiuxing mechanism.

The. drawin s d sclos a-p ferred embod ment of the. invention which relates. to. a fluxing mechan sm adap d: or u e a ply n fl the side. seam o of a ca bo y 1 wh n n sitio ody ma er .19m A. F 3, n can body may be advanced along the horn in the, conventional manner and is brought into a fiuxing station B at which the is applied.

The fluxins mechanism may be mount d, n a frame: 9 f ame. bracket Q se ure to'the can body maker n proper positi n elativ t th fiuxin station B. The. frame C carries a flux. pot D which contains a bath of liquid flux E'. A flux supply roller F is mounted for rotation in the flux not. preferably beneath the body maker horn A and on an axis. parallel to the axis of the body maker horn. A flux applying roller G is preferably mounted above the 11-13 supply roller F a d, these two. roll rs ar adapted for dual swin ing movement on a common pivotal mounting- H.

A roller shifting or actuating device I is used to move the rollers F and into fluxing or nonl xin positi ns Provi sion is. made i'or ascertaining if a can body b is in proper position at the fiuxing station B and for this purpose a container body detector device J (Figs. 2, 3 and 4) is preierably employed. This detector device is provided with a latch element which operates in conjunction with the pivotal mounting H for the rollers so that in the event there is no can body 11 in proper position for; fluxing, the detector device will lock the latch element K thus preventing the normal movement of the rollers on their pivotal mounting under the action of the roller shifting de- 7 vice I.

The body maker horn A for the can body '0 may be of the usual body maker type and is best shown in Figs. 3 and 6., For a cylindrical can body b the horn is of cylindrical shape and the usual provision of advancing the bodies intermittently along the horn may be used. For this purpose there is shown a pairo-f longitudinally extending grooves l l which provide slideways for reciprocating feed bars i2, these being .arranged adjacent the top of the horn, in the usual manner. Feed dogs [3 of the usual type are carried in the feed bars and in this manner a can body I) is advanced into the fiuxing station B. In the embodiment of the present invention, the side seam a of the can body is disposed below the horn and for this purpose a clearance groove I4 is out in the horn to permit the unobstructed advancement of the can body. v

The fluxing mechanism of the present invention is in the nature of an attachment and the frame C carrying the mechanism is secured to the frame of the body maker as required. The exact style of frame and its manner of attachment will depend upon the type of body maker being used.

The flux pot D best illustrated in Figs. 1, 3 and 4 preferably is shaped as a trough 2i and may 'be substantially semi-circular in cross section. Such a trough is formed with end members 22 and thus provides a reservoirfor the liquid flux material E; The flux supply roller F is not attached to the flux pot but has freevertical movement. The end members 22 may be notched out in clearance openings 23 for the roller shaft or other associated parts of the flux bracket 25 having a dovetail groove or slot 26 formed in its upper portion. This construction.

allows for sliding removal of the flux pot for cleaning purposes. The bracket 25 is formed with a depending projecting part 21' for mounting on the frame C of the flu'xingmechanism. A cap screw 28 may be used for securing the parts together. 7 I

The flux supply roller F is preferably of hollow construction to provide a light weight roller 3|. This hollow cylinder is mounted on a horizontally disposed shaft 32 which is carried in arms 33, 34 spaced on opposite ends of the roller. The arms 33, 3d are formed with hearing

bosses

35, 36 in which the roller shaft 32 is journaled. These arms are integral parts of a floating bracket or yoke member 31.

The-pivotal mounting H referred to comprises a sleeve 4| which in length is substantially equal to the width of the yoke 31. This sleeve provides for a movable connection with the yoke which affords the floating feature referred to. For this purpose the sleeve M is formed with a trunnion boss 42 which is preferably slightly on center, as best illustrated inFig. 5. The yoke member or bracket 31 is formed with an opening 413 into which the trunnion boss extends when the par-ts are assembled. The yoke loosely fits on the trunnion boss. A washer 45 and a trunnion screw 56, the latter being threaded into the :boss, retain the yoke 31in its floating position relative to the sleeve 6|. A setscrew 41' (Figf3) 4 threaded into the sleeve presses against the trunnion screw 46 and holds it in locked position.

The flux supply roller F and also the flux applying ro-ller G, are self-adjusting as to the fluxing operation. This is the direct result of the floating connection just described. The amount of floating movement is maintained within limits, the yoke 3? being formed with spaced projections 48 (Fig. 5) along its bottom edge. These are disposed on opposite sides of the

trunnion connection

42, 43 and each projection carries an upright limit pin 39. The sleeve ll is formed with spaced bosses 5i along its lower edge, each boss aligning with a corresponding projection 48 on the yoke. Depending from a seat in each boss is a pin 52 so arranged as to be in vertical axial alignment with a limit pin. The pair of

pins

49, 52 on each side permits slight rocking movement of the yoke and parts carried thereby but limits such movement when a limit pin contacts its stop pin.

The sleeve at is keyed to a horizontally dis- .posed rock shaft 55 which constitutes an essential part ofthe pivotal mounting H previously referred to. This shaft is held in fixed position in bearings 56, 51 (Fig. 6). The bearing 58 is formed in the upper part of a bracket 53 which is mounted on the frame C. In like manner the bearing 5? is formed on the upper part of a bracket 59 also mounted on the frame.

The flux applying roller G as shown in the drawings is mounted directly above the flux supply rolle-r F and is smaller in diameter. This roller G is secured to a horizontal shaft 64 both shaft and roller being parallel to the body maker born A and the flux supply roller F and its shaft '32. The shaft 6| extends outwardly at both ends of the roller G and is journaled in bearings formed at the forward ends of spaced links 52, 53. The

links

62, 63 are carried on a horizontally disposed rod 64 which in turn is carried in spaced

lugs

65, 66 which constitute an integral part of the yoke 31.

As best illustrated in Fig. 1,. the link 62 extends on opposite sides of the lug and for this purpose is notched as at 61 to allow for slight movement between the yoke 3'1 and the flux supplying roller supporting parts. This construction also prevents longitudinal shifting of one part relative to the other. Thus it will be understood that the rod 64 provides a connecting part between the supporting structures of the flux supply roller F and the flux applying roller G. The

rollers F and G as a result move together as a unit during the operation of the machine.

Adjustment is provided between these structures by utilizing a slight rocking movement between the parts on the rod 64 as an axis. By means of this adjustment the amount of contact or engagement or even a slight spacing between the rollers F and G may be obtained. While it is herein described that the two rollers are in constant peripheral engagement, it will be understood that this may include slight separation. In other words, by increasing the spacing between the rollers F and G a thicker film of flux will be transferred to the flux applying roller G and therefrom to the side seam of the can.

Such adjustment of engagement is made for a given viscosity of flux and thereupon a uniform thickness of flux will be applied to the can bodies.

The arms 33, 34 of the yoke 31 are provided respectively'with top projection pads 68 (Fig. 2) and 69 (Fig. 3). The

respective links

62, 63 of the flux applying roller G carry projecting bosses H, H (see also Figs. .1 and 6) The-bosses IL. F2 are disposed directly above the supply roller pads 88, 69 and each boss threadedly supports an adjusting screw 13. By' positionin the screw in its associated boss; the weight of the flux applying roller G and its associated parts issupportedon the arms 33, 34 of the yoke and the desired spacing between the rollers F and G as determined by this threaded adjustment gives the desired film thickness.

In the foregoing description reference has been made to the unitary lifting of the rollers for applying the liquid flux to the side seam a o-f'the can body b after it comes to rest at the fluxing station and to lowering of the rollers to permit. an unrestrictedadvancement of the fluxed can body along the horn A and out of the flux-mg station. During both raising and lowering of the rollers the flux snpplyroller F remains in the liquid.- flux E of the flux pot D. Both rollers are constantly rotated as will be described later and a proper supply of flux is: assured at all times;

Raising and lowering of the rollers F and G is brought about by oscillation of the shaft 55 (Figs. 3 and 6) by means of a cam action oi the actuating device I. At one end of the sleeve 4| a lever I5 (Figs. 1, 3 and- 6) is formed with a bearing boss I6 which loosely surrounds the shaft 55. At the opposite end the lever 15 carries a pin 11 on which is mounted a cam roller 18. This cam roller is adapted to operate in a cam groove or track 19 formed in a face cam 8!. I

The actuation of the cam is timed fol, .synchronr ized action with the advancement of can bodies 11 along the horn A and with the positioning of the bodies at the fiusing station for a fluiring operation.- Normally movement of the lever 15 is transmitted to the shaft 55 to lift the flux. supply roller F and the flux applying roller G. A yieldable transmission connection, however, from the lever '55 to the shaft 55 provides for the nullifying of shaft movement in the absence of a can body in proper position for flu'iiing; as will be hereinafter more fully described in connection with the detector device J.

Adjacent the lever boss 16 the sleeve 41 is formed with an integral block extension 82 which during normal operation of the machine moves in unison with the lever. The block 82 cohs'titutes a part of the yieldab'ls connection referred to and is formed with a lug 8-3 providing a seat for a bolt M having a retaining nut 85 threadedly mounted above the lug. The lever 15 is formed with a boss oreartib constituting a part (if the connection and this car is aligned with the lug 83. Ear i6 is apertured to receive the bolt 84. The 111 83 and the ear 3% normally are in the closed contacting position illustrated in Fig. 3. Bolt 84 extends below the ear and is surrounded by a spring 8'3. At the bot-tom the bolt 8% threaded'y carries lock nuts 38 by means of which the spring is properly tensiohed. This provides a yielding connection Earth-e lever I5 andthe block 82' of the sleeve 4!. As long as the machine is operating normally, that is with can bodies in proper position at the flw'r'ing station, the fluxing operation continues and the cam-ill rocking the lever '15 also oscillates the shaft 55 and the par-"ts carried thereby.

The com 3! is mounted on a horizontally disposed driven shaft 9i '1, 3 and 6) is jonrnaled in spaced bearings 92 formed in the frame C. Shaft QI is constantly rotated a drive shaft 93., For this purpose a. bevel gear 94 mounted on the sh'ait H" meshes with a hotel body ll'lQViilg into the fluxing station.

ear mounted on the drive shaft 93. 1 'Ifhe: drive shaft 9'3 may be iournaled in suitable bearings ee iorri'i'd in the frame (2 or the-machine; The drive shaft 93 receives its rotation in any suitable manner by means of which the proper actuaof the parts of the 'iluxing mechanism is obtained. Since such actuation is intime with the body maker of which the hem A is an 'essentiai feature; the hurtin mechanism will be driven from the body maker. A proper driving connection from the body maker may be afforded by means" of a chain drive 9? which operates over a sprocket 98 mounted on the drive shaft 93.

The can body detector device 5, which it will be recalled, cooperates with the latch element K arid the shifting device I for" moving the rollers of? their pivotal. mountings'I-I, is best illustraed Figs. 2, 3 and 6. This detector device compfises a longitudinal shoe HI which extends alongside oi the horn 'A. Normally the forward end of the shoe Iii is urged inwardly to rest within a longitudinal recess ii? cut in the side or the horn A (Fig. 2) t The shoe Hi is connected by a shortarm H2 to a downwardly extending boss I- I3 which provides for the pivotal mounting of the shoe. I

Boss I it is loosely mounted onia vertically eiitending bolt we threaded into the upper part of a bracket lug It? which forms an integral part of the bracket 55. When a can body h advances aiong the horn A into the fiUXlIlg station Bflthe forward end of the body engages the shoe HI and rocks it on its pivotal connection H4 outwardly into sliding engagement with the can The forward end of the shoe H l is formed with a projecting part II! which extends along. the back or away from the body maker horn. This projection at all times engages the upper end of a finger II8 (see also Figs. 3 and 7) which is urged toward the body maker born under spring tension. The finger H8 is an integral part of a bell crank I I9 which i'sv mounted on the rod 64. An arm. I2I of the bell crank I I9 is at all times engaged by a spring I22v the upper end of which is seated in a counterbore I23, formed in the rear face of the bell crank arm.

The opposite end of the spring 222 is seated in a counterbore I25-forrhed in a projecting shelf or lug I26 of a hub I21. The hub I21 is secured to a stationary shaft I28. Shaft I28 isfheld in a bearing Informed on the bracket 58 and in a bearing I30 formed in the bracket 59 just beneath the bracket lug H5. The hub I2 is extended into a si lit clamping projection I32 (Fig. 6) and a cap screw I33 is used to clamp the arts togetlier so that the hub I21 at all times remains stationarywith the stationary shaft I28. By rea son of this construction the finger 8- provides a constant. yielding pressure against the free end of the shoe III.

A toggle link connection is provided between the bell crank H9 and the latch element K. The 121 carries two upwardly extending lugs I35 which are formed integral with the hub and which provide a bearing for a horizontally disprised rock pin I36. A head I31 of the pin-I36 is outwardly spaced from one of the lugs I35 sufiicientl-y to forms mounting for a pawl member 138 which constitutes the principal part of the latch element This pawl is clamped onto the rack I36 as at [39.

A split toggle sleeve or boss I45 is mounted on the rock 15in I36" in between the bearings proneed by the lugs I35 and is clamped onto the pin by a cap screw I46. By reason of this construction the pawl I38 moves in unison with the toggle boss I45 and with the rock pin I36 which forms the connecting part for this cooperative movement.

The toggle boss I45 is formed with a depending part I41 which is slotted at I48 to provide a loose toggle connection with the bell crank H9. The arm I2I of the bell crank is slotted at right angles to the slot I48 as at I5I to provide a seat for a toggle block I52. This toggle block loosely and slidably fits within the slot I48 of the toggle boss part I41. The slotted arm I2I of the bell crank is formed with aligned transverse bores I53 and after the block I52 is positioned'within the slot I5I of the bell crank a connecting locking pin I54 is passed through the openings I53 in the bell crank and through an opening I55 in the block. Fig. 7 illustrates these parts in separated position prior to assembly.

It will be observed by reference to Fig. 3 that the can body b at the fluxing station B on the horn A has pushed back the shoe I I I and with it the finger II 8. This action rocks the rod 64 so that the bell crank H9 is moved in a clockwise direction against the resistance of the spring I22. By reason of the toggle link connection between the bell crank II 9 and the toggle boss I45 just described, the rock pin I36 is moved in a counterclockwise direction and the pawl I38 is lifted. This is the normal operating position, see also Fig. 6, and proper fluxing will take place.

In the absence of a can body at the fiuxirlg station, the end of the shoe II I remains in the horn groove I I6. The spring I22, which it will be'recalled is constantly pressing against the bell crank H9, yieldingly holds the shoe in this position through the action of the finger H8. Fig. 2 illustrates this abnormal position of the parts. It is at this time that the latch element K becomes effective, as will now be described. r

The pawl I38 is formed with a hooked end I65 which, in the absence of a can body on the body maker horn, engages over a locking lug I66 formed on the block 82. This looks the block 82 against movement and holds the shaft 55, 'constituting the pivotal mounting H of the rollers F and G, against oscillation. This prevents movement of the rollers into fluxing position throughout all cycles of operation until a can body b has been brought into proper fluxing position. The

roller shifting device I is actuated by the cam 8I and this cam movement takes place irrespective of the presence or absence of a can body in fluxing position at the fluxing station B. When the block 82 is prevented from moving, the spring 81 yields to permit the normal movement of the lever 15. At such time the ear86 separates from the lug 83, as shown in Fig. 2. The flux applying roller G therefore does not move up into position adjacent the horn A and accordingly flux is not uselessly applied to the horn in the absence of the can body.

Reference has been made to the fact that the rollers F and G are constantly rotating and at a uniformly peripheral speed. This rotation is effected from the driven shaft 9|, as illustrated in Figs. 1, 4 and 6. The shaft 9| carries a sprocket I over which operates a chain I16, this chain passing over a double sprocket I11 loosely mounted on the shaft 55. A collar I18 secured to the end of the shaft 55 retains the double sprocket I11 in operating position. An outer sprocket section I19 preferably is anintegral part ofthe double sprocket I11, and azchain iii keyed to the flux supply roller shaft 32.

mounted on the flux applying roller shaft 5|.

The pitch diameter of these gears I85, I 86 is such as to insure a uniform peripheral speed of rotation of the rollers F and G.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing'from the spirit and scope of the invention or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

- We claim:

j 1. In a solderfiuxing mechanism for applying fluxing materialto the side seam of a container bodyfthe combination of a machine frame, a horn carried on said frame for supporting container bodies passing therealong into fiuxing position, a flux applying rollerlocated adjacent said supporting horn for engaging can bodies and for applying fluxing material to the side seams of the'bodies, a flux pot mounted on said frame for holding a supply of liquid fiuxing material, a flux supply roller rotatable in said liquid flux and disposed in engagement with said flux applying roller for transferring flux from said flux pot to said flux applying roller, a common pivotal mounting in said frame for both of said rollers, and floating means operable at right angles to the said common pivotal mounting for uniformly engaging said flux applying roller along the entire length of the container body being fiuxed.

2. In a mechanism for applying a liquid flux to the side seam of a container body, the combination of a horn for supporting the container body, feeding means for advancing container bodies intermittently along said horn into fiuxing position, a' flux pot located below said horn for retaining a bath of liquid flux, a flux supply roller rotatable in said bath for picking up said flux, a flux applying roller disposed in rotatable engagement with the outer surface of said flux supply roller for receiving the liquid flux therefrom and for applying liquid flux to the side seam of the container when at rest on said horn, and cam actuated means movable in synchronism with the advancement of the bodies for shifting said applying roller into engagement with a positioned body for depositing a quantity of the flux onto the side seam thereof.

3; In a mechanism for applying liquid flux to the side seam of a container body, the combination of a horn for supporting the container body for a fluxing operation, a flux pot adjacent said born for retaining a bath of the liquid flux, a flux supply roller rotatable in said bath for picking up said flux, a flux applying roller engaging the outer surface of said flux supply roller for receiving the flux therefrom, a bracket for pivo ally mounting said rollers, means for normally moving said rollers on their pivotal mounting to bring said flux applying roller into engagement with a container body on said horn for depositing a quantity of flux onto the si dg seam of th abpdy le s ia located at se sid of 1 e and havin a detector sh e d Le l hl said sli ezha ins m r me a dete t naacti n and res said h rn the absen e of be mixed for iehinsse dbres se against pivotal movement, and means for allowing movement of said roller moving means if when said bracket andft 1 V against movement, to inSuredeposit offiux only on the side seam of a positioned container body.

4. In a solder fluxing mechanism forapplying fluxing material to the side seam of a container body, the combination of a body horn along which container bodies are passed and supported while in a fluxing position, a flux applying roller located adjacent said supporting horn for engaging can bodies and for applying fluxing material to the side seam-s of the bodies, a flux pot mounted adjacent said horn for holding a supply of fluXing material, a flux supply roller ro tatable in said flux pot and disposed in engagement with said flux applying roller for transferring flux to said flux applying roller, means for moving said flux applying roller into engagement with a container body on said horn, and means adjacent said horn including a detector member engageable by a container body moving into fiuxing position on said horn for preventing bodily movement of said applying roller into fiuxing position in the absence of a container body in fluxing position on said horn.

5. In a mechanism for applying a fluxing ma terial to the side seam of a container body, the combination of means for supporting said body, a flux pot adjacent said supporting means for retaining a bath of liquid fiuxing material, a flux supply roller rotatable in said bath for picking up said liquid fluxing material, a flux applying roller disposed in engagement with the outer surface of said flux supply roller for receiving the fluxing liquid therefrom, the axes of said flux applying roller and said supply roller being disposed substantially parallel to and longitudinally of a container body on said supporting means in fluxing position, a common support for said rollers, means for shifting said roller support and said flux applying roller into engagement with a container body while maintaining its engagement with said supply roller for depositing a quantity of liquid flux onto the side seam of the body, and means for mounting said roller support for floating movement in the plane of the roller axes to insure complete simultaneous engagement of said applying roller with the entire side seam of a container body being fiuxed.

6. In a mechanism for applying fiuxing material to the side seam of a container body, the combination of means for supporting said body, means for advancing a container body along said support into fiuxing position, a flux pot adjacent said supporting means for retaining a bath of fiuxing material, a flux supply roller rotatable in said bath for picking up said fluxing material, a flux applying roller disposed in engagement with the outer surface of said flux supply roller for receiving fluxing material therefrom, means for positively rotating said rollers at a uniform peripheral speed with their axes disposed substantially parallel to and longitudinally of a supported container body, a common support for said rollers, meam for bodily moving said flux applying roller into engagement with a container body on said supporting means in fiuxing position for ngagement of said apthe entire side seam of a container body bing fluxedl" i e in appl filming ma rial to tl'iesideseam ofa tubular jerbody, the combination of a horn along which acor'rtainer b syis-neyesand' supported during fluxing a pot adjacent saidhorn for retaining a bath ,fluxing material, supply rol ro tatabl iii b'a'tli'for' picking'iip saidfiuxing material, a flux applying roller disposed in engagement with the outer surface of said flux supply roller for receiving the fluxing material therefrom, pivotally mounted bracket means for supporting said rollers with their axes disposed substantially parallel to and longitudinally of said horn, means for bodily moving said flux applying roller relative to the flux supply roller for varying the thickness of the applied fiuxing material, means for pivotally moving said bracket means to bring said flux applying roller into engagement with the container body on said horn for depositing the required thickness of the fluxing material onto the side seam of the body, and means for mounting said bracket means for oscillatory movement in the plane of the roller axes to insure complete simultaneous engagement of said applying roller with the entire side seam of a container body being fluxed.

8. In a mechanism for applying liquid flux to the side seam of a tubular container body, the

' roller into engagement with a container body on said horn for depositing a quantity of flux onto the side seam of the body, and means located at one side of said horn including a detector member engageable by a container body moving into fluxing position for preventing pivotal movement of said rollers by said roller shifting means in the absence of a container body in fluxing position on said horn to insure deposit of flux only on the side seam of a positioned container body.

9. In a mechanism for applying fluxing material to the side seam of a tubular container body, the combination of a horn alon which a container body is moved and supported during flux ing, a flux pot adjacent said horn for retaining a bath of fluxing material, a flux supply roller rotatable in said bath for picking up said fluxing material, a flux applying roller disposed in engagement with the outer surface of said flux supply roller for receiving the fluxing'material therefrom, pivotally mounted bracket means for supporting said rollers with their axes disposed substantially parallel to and longitudinally of said horn, means for pivotally, moving said bracketmeans to bring said flux applying roller into engagement with the container body on said horn for depositing the required thickness of the fiuxing material onto the side seam cf the body, a

. 11 r axes to insure complete simultaneous engagement of said applying roller with the entire side seam of a. container body being fiuxed.

- DELBERT E. WOBBE. WALTER F. PILLNIK.

REFERENCES CITED The following references are: of record in the file of this patent:

UNITED STATES PATENTS Number Name v Date Sleeper Jan. 8, 1901 Germany June 26, 1930