US1317977A - johnson - Google Patents

Description

A. JDHNSON. APPARATUS FOR DOUBLE SEAMENG COVERS T0 CAN BODIES.

APPUCATIUN fILiD MN- 31. IQIB.

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APPARATUS FORDOUBLE smoms COVERS T0 CAN BODIES.

APPLICAHON EILED JAN- 3l. i918.

1,317,977. Patented 0m. 7,1919.

3 SHEETS-SHEET 2.

42 BY J/EW A. JOHNSON.

APPARATUS ron DOUBLE SEAMING covsns T0 CAN BOOM-18..

APPLICAUON HLED MN. 3|. 9H3.

1,317,977. Patented 001;. 7,1919.

3 SHEETS- SHEET 3.

IN VEN TOR.

Q BY (7M -12; A TTORNE Y,

WITNESS.

UNITED STATES PATENT OFFICE.

AIEL JOHNSON, OF OAKLAND, CALIFORNIA, ASBIGNOR T0 AMERICAN CAN COMPANY,

OF SAN FRANCISCO, CALIFORNIA, A CORPORATION OF NEW JERSEY.

APPARATUS FOR DOUBLE-SEAMING COVERS TO CAN-BODIES.

Specification of Letters Patent.

Patented Oct. '7, 1919.

Application filed January 31, 1918. Serial No. 214,657.

To all whom it may concern:

Be it known that I, AXEL .lonusou, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Apparatus for Double-seaming (overs to Can-Bodies, of which the following is a specification.

The hereinafter described invention relates to an apparatus for hermetically sealing can ends or covers to flanged can bodies for the preservation of food products or other similar materials, and more particularly to the means for double seaming the flange of a can cover to the flanged end of a can body, and the. same resides in the improved constriu'tion of the can chuck for holding the. cover onto the can body during the seaming operation, and in the construc tion of the seaming roll associated with the chuck for performing the double seaming operation of uniting the flange of the can cover to the flange of the can body: the object of the invention being to secure accu racy of gaging the seaming roll with respect to the can endl chuck. whereby the seaming roll will be relieved of the thrust strains usually placed thereon during the double seaming operation. A very slight error in the adjustment of the rolls relative to the can end chuck will result in the formation of an imperfect or leaky seam between the cover and can end after the completion of the double seaming operation, and it is highly desirable to reduce the chances of an occurrence of this result to a minimum, and which in the present case isaccomplished by providing a can end chuck with circumferential grooves in the face thereof arranged in different vertical planes, with which coacts successively a circumferential flange outwardly projecting from a double grooved seaming roll, the grooves of which lie in different vertical planes, the said flange of the seaming roll successively engaging with the grooves in the can end chuck as the seaming rolls ver tical position is varied to successively place the seaming grooves thereof in radial alinement with the flange of a can end cover to be hermeticall double seamed to the flanged end of a can ody.

In order to comprehend the invention, reference should b had to the accompany ing sheets of dra ings illustrating the invention as applied to a single spindle double seaming apparatus, wherein- Figure 1 is a plan view of the apparatus illustrating the means associated with the seaming mechanism for delivering. can lmdies \vith ends loosely applied thereto to the said seaming mechanism.

Fig. 2 is a vertical sectional elevation taken on line 22 of Fig. 1 of the drawings andwiewcd in the direction of the arrows.

Fig. 3 is a top plan view partly broken away taken on sectional line 3-3, Fig. 2 of the drawings, and viewed in the direction of the arrows.

Fig. 4 is a broken detail vertical sectional view of the housing for inclosing the operat ve means for the seaming mechanism, said v ew being taken on the sectional line 4-4, Fig. 3 of the drawings, and viewed in the direction of the arrows.

Fig. 5 is a sectional plan view taken on line 5 5 of Fig. 2 of the drawings, and viewed in the direction of the arrows.

Fig. 6 is a sectional lan view taken on the irregular sectional ine 66 of Fig. 2 of the drawings, and viewed in the direction of the arrows.

Fig. 7 is a vertical central section of a portion of a can, the chuck and the seaming roll with its lower groove engaged with the can end seam.

Fig. 8 is a similar view with the upper groove on aged with said seam.

In the rawiugs, and referring more particularly to Fig. 2 thereof, the reference numeral is used to designate any suitable fornrof a supporting structure capable of sustamin the working parts of the appa ratus an which preferably has formed integral therewith the circular housing 2, from which housing depends the tubular sleeve 3 through which projects the vertical shaft l, which shaft works in upper and lower bearlugs 5 and 5, the latter bearing being carried b the cover plate 6 of the housing 2.

Wit in suitable bearings of the cover plate 6 is mounted for rotation 11. horizontally disposed drive shaft 7, which is driven, in the present case, through the medium of a belt wheel 8 mounted on one end thereof, which receives its motion from a drive belt, not illustrated, having power applied thereto by any suitable source of outside supply. On the drive shaft 7 is mounted a. gear 9 which meshes with the gear 10 secured to the upper end of the vertical shaft 4, so that the rotation of the drive shaft 7 through the medium of the intermeshin gears 9 and 10 is transmitted to the said haft 4. To the shaft 4, within the housing 2, is secured in any suitable manner a head 11, which head rotates with the said shaft 4 and at its lower end rests on the anti-frictional ball bearlugs 12 interposed; between the plate 12 secured to the bottom of the head 11 and the plate 13 secured in any suitable manner within the housin and to the bottom wall thereof, the said p ates 12 and 13 serving as hearing rings to form atrack-way for the anti frictional balls 12, the said head 11 being sup orted for rotation on the antifrictional hearings. There is secured to the shaft 4, intermediate the gear 10 and the head 11, an enlarged cog-ring 14, which meshes with the cog pinion 15 secured to the stem 16 of'the can head chuck 17, so that the rotary movement of the shaft 4 is transmitted to the stem 16 of the can end chuck 17. The stem of the said chuck works within suitable bearings carried by the housing 2 and within wh ch bearings the stem 16 is vertically movable, the can end chuck 17 being carned by the lower end of the stem 16 projected below the housin of the housing2,

ings. The yok '18 is thus permitted free ingthe rotary movement of On the stem 16 of the can end chuck 17 and within the housin 2 is located a yoke 18, Figs. 2, 3, 4 and 5 o the drawings, which yoke is held against vertical movement on the stem 16 by means of a collar 19 screwed onto the threaded section 19 of the said stem 16, and the said yoke is held against downward movement relative to the stem- 16 by means of the flange 20 formed integral with the said stem 16, there being inter osed between the said Ha 20 and the yo e 18 the anti-frictional bal bearings 21. The yoke 18 is held against rotation by means of the lateral pro ections 22 thereof, each of which projections is formed with 'a vertical bore therethrough which fits over the studs 28 'upwardl proj ectin from the base 133. 4 an 5 of the drawvertical movement with the stem 16, but is held against rotation therewith. From the up r portion of the oke 18 there is latera y rejected a stu 24 which carries an anti-frictional cam following roll 24, which roll works within acam groove 25, formed in the periphery of the head 11 so that durthe said head 11 the cam groove 25 thereof acts relatively to the roll 24 to raise and lower the oke 18. As this oke is held against vertica move ment with respect to the stem 16, it is apparent that the said stem is raised and lowered with the vertical movement of the yoke 18.

Adjacent the can end chuck 17 there isloeated a seamitroig head 26, which seaming head is moun upon the lower end of a mum spindle 27 journaled for oscillatory and lincal movement at 28 of the housing 2, the said spindle 27 carrying at its upper end a transverse double arm 29 (Figs. 2 and 5 of the drawings). The said arm 29 carries upon its ends cam following rollers 30 and 3 the former below and the latter above the said arm, which said following rollers are ada ted to follow cams 32 and 33 respective formed u on the peripheral surface of'tlie rotating ead 11 and which cams during the rotary movement of the said head act in conjunction with the rollers 31 and 30 to oscillate the seaming head 26 to place the seaming roll 26' carried thereby into operative relation with the can end chuck 17 for the double seaming of the can end to the can body.

The seaming head spindle 27 also carries a cam following roller 34 which is adapted to lie within and follow an offset groove 35 formed in the rotary head 11 below the cam groove 25 and between the peripheral cams 32 and 33, the said cam groove 35 serving through the medium of the cam following roll 34: to raise and lower the spindle 27 of the seaming head. The seaming head 26 is in the form of a lever extended at right an- 'gles'from the spindle 27, as shown in Figs.

2 and 6 of the drawings, and carries at its outer end the seaming roll 26, which roll is mounted for free rotation within the bifurcated portion of the said seaming head 26, the said seaming roll being freely rotatable upon a pin 36. The said seaming roll 26' is formed with two adjacent peripheral grooves 38 and 38, Figs. 2, 7 and 8 of the drawings, the lower groove 38 performing the first seaming operation upon the can seem, as illustrated in Fig. 7 of the drawings, and the upper groove 88 performing the final seaming operation thereon, as disclosed in Fig. 8 of'the drawin The seaming roll 26 is provided with an outstanding ,clrcumferential flange 39, which is adapted to mo've successively into and out of the two adjacent peripheral grooves 40 and 40 formed in the can end chuck 17 As the, flan 39 of the seaming head moves within either of the grooves of the can end chuck, the same serves to properly gage the seeming roll relative ,to the said can end chuck andthe grooves 38 and 38' of the said roll 1n to the seam being operated upon there y. By this means there is an exact 'ng of the seamin roll with respect to t e can and chuck head and the seaming grooves 38 and 38' of the said roll 29 are accurately positioned relative to the seam to be rated upon.

, It will be understood that the engagement of the flange 39 with the coves 40 and 40' of the can and chuck 17 es lace while the said chuck is in lowered pggihon to hold the can end 41 onto the can y 42 to which it i a be secured, which body a, the and loosely applied thereto at such time is properly positloned relative to the rotatable cam rest 43, 2, 3 and 8 of the drawings.

The can bodles 42 with the endsloosely applied thereto are fed, in the resent case, by means of an endless travelmg belt 43, Fig. 1 of the drawings, to successively place the can bodies onto the horizontally disposed table 44 and within one of the peripheral pockets or cut-outs 45 of the can feed wheel 46, the said can feed wheel acting as a timer to place the advanein cans with the ends loosely a plied thereto in timed and spaced relation, t e circular portions 47 of t e can feed wheel 46 intermediate of the "out-out portions'45 during the advancin of one can serving to act as a guard for hol ing the cans back until the next followingpocket or cut-out 45 engages and advances a can. The cans are thus advanced successivel by the ockets 45 of the feed wheel 46 an are gui ed in their path of travel by a curved extension wall 48, and, the said cans as advanced by the carrier wheel 46 are de osited onto th'e rotatable rest 43 of the tab e 44, and when so positioned. are in axial alinement with the can end chuck 17. The can carrier wheel 46 is mounted on a short vertical shaft 49 extended through a hub 49' of Y the table 44, the said shaft 49 at its lower ex-' tremity "carrying a Genevawheel 50 which is engaged by a roll 51 of an arm 52 secured to and pro ectin from the shaft 53 working in bearingsfof t 0 frame 1, and a hub extension 44' of the table 44 (Fig. 2 of the drawings).

Rotation is im arted to the shaft 53 from the drive shaft 4y means of the intermeshing lgears 54 and 54' mounted respectively on t e said shafts 53 and 4, while Intermittent motion is transmitted to the can carrier wheel 46 from the shaft 53 through the medium of the Geneva mechanism 50, 51 and 52,- before described.

In the o eration of the machine, assuming a can y 42'with an end 41'loosely applied thereto to be positioned on the ro tatable can rest 48, the cam following roller 34 working within the cam groove 25 of the rotary headll first acts to lower the stem 16 carrying. the can end chuck 17 to cause the same to rest firmly onto the can cover or end 41 and to clam the same onto the can body 42, thecalr b0 y at such time with the end clamped thereto rotating freely with the rotary movement of the stem or spindle 28, while the cam following roll 84 working within the cam groove35 of the driven head 12-actin at the same time to lower the stem 27 o the seaming head 26 to place the flange 39 of the seaming roll 26' in radial alinement with the upper groove 40 of the can head chuck 17. The seaming head 26 is then oscillated by the action of the final the can end chuck durin n the cams 32 and 33 of the head 11 to more a mia el aad a ilyn t r the flange 29 within as "grobve40 of the can end chucki'no 'er tofga and hold the seamin' rollin rolperposltion relative to the sai can en 0 uckand cause the lower 'groove- 38' thereof "to y properly act onto the seam ofthe rotatingcan for ini' tially curling thefian'ge o'fthe' amend relagage groove 40' and to cause the "second a seaming groove 38 to act on the seam for operation thereu n for the hermetical sea ing thereof, it eing understood that during these operations the seaming roll 26' is rotated by frictional engagement of it's seaming groove with thecan end and the engagement of the lien 39 with the gage grooves of the can an chuck, which chuck with the clamped can end and bed is driven at high rotatin s eed.

After the completion 0 t e seaming operation the seaming head is oscillated or moved radially to take the seaming roll from within the sphere of the can end chuck and the seam of the can,lafter which-the can head chuck is raised by the cam follower roll 24 working within the cam groove 25 and the seamin head is likewise raised by the action of t e cam following roll 34 working with the cam groove 35.

The parts being thus returned to normal position in readiness to be lowered to clamp a can end to a positioned can body and to double seam the flange of the end of the can body. It will be seen from the foregoing that the seaming roll is positively held to the operation of double seaming a can en to a can body by reason of the flange 29 moving successively within the g ves 40 and 40' of the said can chuc t ereby accurately gaging the seaming grooves 38 and 38' respectively action of the rotary head 11, but it is obvious that any number of can end chucks and seaming heads or mechanism may be employed and thrown into action by the movement of the rotary head 11, and therefore I do not wish to be understood as limiting the invention to the emploment of a single seamin .head and can on chuck, but any number t ereof may be employed consistent with structural racticability.

It will be understood that the operati parts of the apparatu are actuated m time relation, so that the can end chuck is lowered to clamp a can end to a can body, on a can body with an end loosely applied thereto being delivered onto the rotatable can seat :43, and that the seaming head is lowered and moved regularly toward and from the can on chuck after the same has clamped a can on to a can body to which it is to be double seamed.

Havi thus described the invention what is claim as new and desired to be protected by Letters Patent is 4 1. An apparatus for the described purpoie, the same comprising means for hold- 125 a flanged can and an end to be hermetic y seamed to the flange thereof, the same including a can end chuck havin formed therein a plurality of circumferentially disposed age grooves, a seaming roll having forme 'therein a plurality of seaming grooves and provided with a circumferential ange outwardly projecting therefrom, and

V rotary means for imparting vertical movement to the can end chuck and to the seamin roll and moving the said roll radially re ative to the can end chuck to place the flange of the said roll successively into engagement with the grooves of the can end chuck and the grooves of the said seaming roll successively into engagement with the flange of said can for the hermetic seaming of the end thereto.

2. In an apparatus for the described purpose, the same comprising means for bolding1 a flanged can and an end to be hermeti ca y seamed thereto, the same including a can end chuck having formed therein a plura-lity of circumferential] disposed gage ves, a seaming roll havmg formed therein a plurality of seaming grooves and provided with an outwardly rojecting circumferential flange above the said grooves, means for imparting vertical and rotary motion to the can end chuck, and mechanism for im arting vertical movement to the seaming ml and moving the same radially relative to the can end chuck to place the flange thereof successively into and out of enga out with the grooves of the said chuc and the grooves of the said seamingroll successively into engagement with the flange of the can for the seamingof the end thereto.

3. In an apparatus for the described puroperative relation with the can end chuck, a

seaming roll carried 'by said head and having formed therein a plurality of seamin grooves and provided with a circumferentia projecting flange, and means for moving said sad for successlvely placing the flange of its seaming roll in horizontal alinement with the gage grooves of the can end chuck and moving the same radially to place its flange successlvely into and out of engagement therewith and the seaming grooves thereof successively into engagement with the flange of the can for the seaming of the end thereto. 4. In an apparatus for seaming an end to a can body, the combination with a can end chuck havin formed therein a plurality of end to be seamed thereto, the same including a can end chuck, having formed therein a plurality of gage grooves, rotary mechanisms for actuating said means to cause the can end chuck to clamp and hold a can end to a can body, a seaming head adapted for movement axiallyand radially with respect tothe flan ed end of a clamped can, a seami roll carried by said head and provided with a plurality of seaming grooves and an outwardly projected circumferentially disposed gage flange, and means for moving said se'amin head to place the flange of the seaming roli 'successively into and out of engagement with the grooves of the can end chuck and to bring the seaming grooves thereof successively into engagement with the flange of the can for the seaming of the end thereto.

6. In an apparatus for the described purpose the combination wlth a rotary .and vertically nl ovabl; can mild chluck provided with a lura ity 'o 'p era grooves, a sea ining roll hasi n g formed min a plurality of seaming grooves and provided with an outwardly projected. circumferential gage flange, and mechanism for moving the seaming roll axially and radiallti with res to the can end chuck to place e flange ereof successively into engagementwith the gage grooves of the said chuck. v

7. In an apparatus for the described purpose, the combination with rotary means for receiving and clamping cans with ends loosely applied thereto, the same'including a can end chuck provided with a plurality of gage grooves therein, devices for delivering cans with ends loosely applied thereto to said means, a seamingroll having formed therein a plurality of peripheral seaming grooves and provided with an outwardly projected circumferential age flange, and means for moving the seammgroll for placing the gage flange thereof successive-l into engagement with the gage grooves of t e can end chuck and the seamlng grooves into'engagement successively with the flange of a held can for the hermetic seaming of the end thereto.

8. In an apparatus for the described purpose,*the combination with means for receiving and holding a flanged can with an end loosely applied for hermetic seaming there to, the same including a can end chuck having formed therein peripheral gage grooves in different horizontal planes, a seaming roll provided with an outwardly projecting circumferential gage flange and formed with peripheral seamin grooves in different horizontal planes, anr l seaming roll with respect to the can end chuck to place the gage flange thereof into engagement successively with the grooves of the said chuck and the seaming grooves thereof into engagement successively with the flange of the held can for the seaming of the end thereto.

9. In an apparatus for the described purpose, the com ination with mechanism for holding a flanged can with an end to be united loosely applied thereto, the same including acan end chuck with peripheral gage grooves in different horizontal planes, of an auxilia and radially movable seam.- ing roll provided with an outwardly projected circumferential gage flange and formed with a plurality of peripheral seaming grooves and means for moving the said seaming roll for successively placing the gage flange thereof into radial. alinement with the gage grooves of the can end chuck and moving the same into engagement there with and the seaming grooves thereof successively into engagement with the flange of a held can for hermetically seaming the end thereto.

10. In an apparatus for the described purpose, the combination with a support provided with a horizontall rotating member for the reception of can bodies with an end loosely applied thereto, means for delivering successive to said member flanged cans wlth ends oosely applied thereto, a can end chuck havmg a plurality of gage grooves means for moving said I 'roll to place the gage flange thereof into engagement successlvely with the gage grooves of the can end chuck and its seaming grooves successively into engagement with the flange of a held can for the double seaming of the end thereto.

11. In an apparatus for seaming ends to can bodies, the combination with a rotatable seat for receiving and sup orting can bodies with the ends loosely app ied thereto, a can end chuck provided with a plurality of peripheral gage grooves, means for actuating said chuck to clamp the can body with its applied end to the rotatable seat and for imparting rotation thereto, a seaming roll formed with a plurality of peripheral seaming grooves and an outwardly projecting gage flange. and means for moving the said seaming roll axially and radially'with respect to the can end chuck to place the gage flange thereof into engagement successively With the gage grooves of the can end chuck and the seamin grooves successively into engagement with the flange of the can for hermetically seaming the end thereto.

12. An apparatus for the described purpose, the same comprising a can end chuck for holding a can end to a can body during the operation of double seaming and having formed therein a plurality of circumferentially disposed gage grooves, rotary means for imparting vertical and rotary movements to the said can end chuck, a seaming roll having formed therein a plurality of seaming grooves and provided with a circumferential flange adapted to bemoved successively into and out of engagement with the gage grooves of the can end chuck. and means actuated by the mentioned rotary means for actuating the seaming roll to place the gage flange thereof successively into engagement with the grooves of the can end chuck and the seaming grooves Ofthe said roll successively into engagement with the flange of a clamped can for hermetically seaming of the end cover thereto.

13. In an apparatus for the described purpose, the combination with a vertically movable rbtary can end chuck provided with a plurality of peripheral gage grooves, of axially and radially movable seaming means adapted to be moved into engagement successively with the gage grooves of the can end chuck, and devices for actuating said seaming means for properly positioning the flange thereof into and out of ment same with respect to the can end chuck. sue 'vely with the gage grooves of the 14. In an apparatus for hermetically can ens chuck. seaming can endstocan bodies, the combina.- In testimony whereof I have signed my 5 tion with a can end chuck provided with a. name to this specification in the presence of 18 plurality of peripheral gage grooves, of a two subscribing seaming r011 provided with an outwardly AEL JOHNSON. projected gage flange and adplurality of pe- Witn: ripheral seaming grooves, an 7 means for 110- N. A. Aoxnn,

10 uating the seeming roll to place the gage S. Comm-mm.

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