US1396433A - Can-double-seaming machine - Google Patents

Description

H. H. HOOD.

CAN DOUBLE SEAMING MACHINE.

APPLICATION FILED FEB. I9. I918.

Patented Nov. 8; 1921.v

5 SHEETSSHEET 1.

A T ORIVEI m mum/2 msonfioo W a J w 0 1 W M w H. H. HOOD.

CAN DOUBLE SEAMING MACHINE.

APPLICATION FILED FEB. 19. 191B.

- 5 SHEETS-SHEET 2.

7 nvvmm flfi/ won jffiood WW A 0mm Patented Nov. 8, 1921.

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H. H HOOD. CAN DOUBLE SEAMING MACHINE.

APPLICATION FILED FEB. 19, 19l8 S H E E T 4 uwmro I 7 21:5074 00d 5 SHEETS Patented Nov.

A TTOR/VEY H. H. HOOD.

CAN DOUBLE SEAMING MACHINt.

APPLICATION FILED FEB. I9, I918.

H, H. HOOD.

CAN DOUBLE SEAMING MACHINE.

APPLICATION FILED FEB. 19, 1918.

Patented Nov. 8, 1921.

5 SHEETS-SHEET 5.

Arm NE) PATENT OFFICE.

HARRISON H. HOOD, OF BATTLE CREEK, MICHIGAN.

GAN-DOUBLE-SEAMING MACHINE.

Specification of Letters Patent.

Patented Nov. 8, 1921.

Application filed February 19, 1918. 7 Serial Ii'o. 218,064.

T all whom it m ag concern:

Be it known that I, HARRISON H. HOOD, a citizen of the United States. and a resident of Battle Creek. in the county of Calhoun and State of Michigan, have invented certain new and useful Improvementsin Can- Double-Seaming Machines; and I do hereby declare that the following is a full, clear, and

exact description thereof, reference being had. to the accompanying drawings, and to the characters of reference marked thereon, which form a part'of this specification.

This invention relates to improvements in can making machinery, and refers more particularly to machines designed to double seam the can end or head to the can body.

' Among the objects of the invention is to improve the means for directing the can bodies to the seaming mechanisms which consist in constructing and designing said means and the parts that cooperate therewith in such a way as to increase the operating speed of the machine and its capacity to produce finished work and also to greatly simplify the design of the machine, render it compact,and reduce the cost of its construction.

Another object of the invention is to pro vide an improved means for delivering the can ends or heads to the can bodies as the latter are presented to the machine, so constructed and arranged as to selectahead for and deliver it to each'can, and constructed with means whereby the can end or head selecting mechanism is inoperative upon the failure of the delivery of a can body to the machine.

Another object of the invent-ion is to provide an improved, compact and effective driving gear mechanism in machines of this character between the seaming chuck shafts, or spindles and the central operating shaft by which the can body platens or supports and the can body feed mechanisms are driven.

, Another object of the invention is to provide an improved arrangement of the mounting for the seaming rolls which cooperates with the chucks to effect the seaming of the flanges of the can heads and bodies, said construction being such as to simplify said mechanism and render it very compact.

A further object of the invention is to provide novel means for, operating the platen shafts for raising and depressing them, constructed to maintain said shafts in accurate operative relation to their actuatmg cam by the use of very simple guiding and retaining means.

Other objects of the invention are to otherwise improve and simplify the design of can making machinery, and the invention consists in the combination and arrangement of the parts shown in the drawings and described in the specification, and is pointed out in the appended claims.

In the double seaming machine herein illustrated as one embodiment of my invention, the can bodies are delivered to the machine in upright position, and the double seaming chucks and platens rotate on vertical axes. However, within the spirit and scope of the invention the cans may be de livered horizontally to the machine, in which event the platens and chucks will rotate on horizontal axes.

The machine herein shown is characterized by two seaming mechanisms, suitable chucks and rolls, located one on each side of the plane of a horizontal feed chute through which the can bodies are delivered to the machine, said chute terminating in two branches which lead, respectively, to the oppositely located seaming mechanisms. Swingable across said feed chute is a feed member which alternately swings from one seaming mechanism to the other and across said feed chute, and alternately delivers can bodies from said feed chute to said seaming mechanisms. In this manner the can bodies are delivered rapidly and by a very simple mechanism to the seaming mechanisms. Means are provided for separately delivering can ends or heads to the can bodies as they are delivered to the machine, and in the illustrated embodiment of said invention, said can head selecting mechanism is carried by and moves with the swinging. can body feed member.

Said can head selecting mechanism is constructed with means whereby it is rendered inoperative to select and feed a can head in the event of a failure to deliver a can body to the machine. The platens on which the can bodies are delivered are alternately raised and depressed to present the can bodies to the seaming chucks,

embracing "each platen being thus raised and lowered during the time the feed member is swinging away from and toward it to deliver a can body thereon. 1 I

In the drawings:

Figure 1 is a vertical sectional view of a can double seaming machine embodying my invention.

Figs. 2, 3, 4, and 5 are horizontal sections on the respective lines 22, 33, 4-4, and 5-5 of Fig. 1.

Fig. 6 is a vertical section on Fig. 1. n

Fig. 7 is a vertical section" on the line 7 -7 of Fig. 6.

Fig. 8 is a vertical section of a portion line 6-6 of of the can head magazine and selecting mechanism, developed as a straight section on the curved line of Fig. 9.

Fig.9isa fragmentary plan view of the can head selecting mechanism and magazine.

F igs. 10 and 11 are sectional details onthe lines 1010 and 11-11 of Fig. 3.

Fig. 12 is a side elevation of a pair of ieamingroll levers and the mounting there- Figs. 13 and 14: are plan .and side views of the cam for'actuating said seaming roll levers. I

Figs. 15, 16 and 17 illustrate the successive steps of effecting the interfolding or double seaming of the body and cap flanges.-

The machine frame comprises a hollow;

base 20 having a top wall 21 to which is fastened a lower hollow cross member 22 provided with clamping bearings 23 for upstanding posts or standards 24, one at each side of the machine frame. The said standards or posts 24: are reduced at their upper ends'to enter vertical openings in the ends of an upper hollow cross frame member designated as a whole by 25, (Figs. 1 and 2) hav-- ing upper and lower walls 26, 27, respectively, said cross member being fixed to said posts'by' screws 28. 29 designates an intermediate cross frame member which extends between said posts and is attached by means of clamping fittings 30 to the posts. The said'lower and intermediate cross members 22 and 29, respectively, are formed with rearwardly overhanging portions 22., respectively, to support the can body feed; ing and seaming mechanism, respectively. The base 20 is provided centrally with an upstanding bearing 30 to receive the lower end of a vertical shaft 31, which extends through the lower and intermediate cross members and is rotatively mounted in suitable bearings in the upper cross member 25. A cam block 33 is fixed to and ro-- tates with said shaft and rests on the u per end of the bearing 30, whereby the s is supported at its lower end on said bearing.

The shaft 31 is 'driven'by a horizontal cross member 25.

drive connection -seam1ng chuck shafts at different speeds suitable source of exterior power which may be applied through a drive pulley 37. The

driving connection between the shafts 35 and 31 consists of a worm 4O fixed on the shaft 35 and a worm wheel fll fixed on the shaft 31.

if, 44 designate vertical shafts, arranged one at each side of tively mounted in the bearings 15 in the Said shafts 4: 1 carry at their lower ends seaming chucks 4.6. The seaming chuck shafts 14 are driven directly from the counter shaft 35 through the medium of spiralgears 18 fixed onthe counter shaft which mesh with other spiral gears 49 fixed on the chuckshafts. The ratio of the worm gear drive between the counter shaft and the vertical shaft 31 and the spiral gear drive between said counter shaft anttthe seaming chuck shafts is such as to rotate the latter shafts and the seaming chucks at high speed relatively to that of the shaft 31, which latter shaft controls the speed of the mechanism for feeding the can bodies to the machine and for presenting the can bodies to the heads or ends at the seaming mechanisms, as will hereinafter be described. The construction described is an exceedingly simple, compact and effective for rotating'the main and from a single source of applied power.

50, 5O designate vertical shafts which are mounted to reciprocate in bearings 51 sup ported on the upper wall 21 of the base 20. Said shafts are vertically alined with the seaming chuck shafts and are movable by their reciprocation toward and from said chucks. The shafts 50 carry at their upper ends platens 52 on which the can bodies A are delivered'by the mechanism hereinafterto be described, and by which said can bodies are presented to the seaming chucks. The lower cross frame member 22 is provided with two circular openings 53 at opposite sides of the shaft 31, said openings being of diameters to permit the platens .to pass the'reinto, with the upper faces of the platens v g}orrria lly flush with the upper face of said cross member 22, as shown in Fig. 1. The intermediate cross frame member 29 is also provided axially inline with the openings 53 with circular openings 5 1 through which the tops of the can bodies are'passed to receive the can ends or heads A Said platen shafts are moved alternately toward and from seaming chucks through operative connection to the cam block 33 made as folaft 10 s Said block is provided with a peripheral cam groove 55in which travel rollers 56 that are rotatively mounted on headed pins 57 the shaft. 31 and rotawhich extend transveimly through the lower ends of the platen shy fts 50. Said cam groove is so shaped as to depress one of the platens 52 in the plane of the intermediate cross member 22 in position to receive a can from the can feeding. means, hereinafter described. while the other platen is in position to present another can to its associated seaming chuck a6; and each of said platens is raised to its uppermost or seaming position and lowered to its lowermost or receivingposition once during each rotation of the cam block 83.

In order to hold the pins 57 of the cam groove rollers 56 always in radial position relatively to the axis of the cam, collars 60 are fitted over the lower ends of the platen shafts 50. and each collar is provided with oppositely directed curved flanges 61 which embrace the outer cylindric surface of the cam block, as best shown in Fig. 5. The inner sides of said collars 60 are recessed to receive the outer ends of the rollers 56 and the pins 57 extend loosely through said shafts and collars. Said collars are held in place on the lower ends of the said platen shafts by means of cap screws 62 threaded into the lower ends of said shafts and washers 63 through which the bolts extend and which overlap the lower ends of said collars.

The can bodies A are delivered to the machine through a horizontal chute or feedway, designated as a whole by 65, which, as herein shown, extends rearwardly from the machine. The'bottom of said chute comprises the upper lap of an endless belt 66 which is trained about driving pulleys 67 (one of which is shown in Fig. 6), whereby the upper lap of the belt is caused to travel toward the machine. The said upper lap of the belt is supported on a plate 68 which lies in the plane of the top of the lower cross member 22 of the machine frame and its overhanging portion 22.

As herein shown, the belt pulley 67 is driven through the medium of sprocket chain 70 (Figs. 6 and which latter is trained over a sprocket gear on the'shaft of pulley 67 and a sprocket 71 on a short shaft 72 that is mounted in a hollow bracket 73 at one side of the base 20. Said shaft 72 is connected by bevel gears '75, 7 6 with a vertical shaft 77., mounted in said bracket 73. Said shaft 77 is driven from -a gear ring 80 that is fixed to and rotates with the cam block 33, through the medium of a toothed gear 81, which rotates with the bevel gear 76.

The can body feed chute is disposed centrally of the machine, the belt 66 delivering the cans midway between the planes of the seaming chucks i6. The said chute is branched to provide branch" feedways or chutes 82 so as to direct cans to both of the seaming mechanisms under the influence of the can feeding mechanism hereinafter to be described. Said branch chutes 82 are bounded or defined at their outer sides by curved rails 83 constituting continuations of the sides of the main chute and at their inner sides by an inner curved rail 85.

.The can bodies are fed from the central position,,to which they are delivered to the machine by the belt 66 through the medium of a swinging plate 90 (Figs. 1, 4, 6 and 9), the hub 91 of which rockson the central shaft 31. The said feed plate is of such length as to extend outwardly adjacent to the outer curved rails of the branches of the feed chute, and is of a width at its end to close the main feed chute 65 at the intersection thereof with the branch chutes when the feed plate is at the mid position of its throwl The feed plate 90 is located a distance above the lower cross member 22 of the frame so as to engage the can bodies above the lower ends of the latter. Said'feed plate is provided at its opposite side edges with laterally opening curved notches or seats 92 of a radius to approximate the curvature of the can bodies. It is connected with suitable mechanism whereby the plate is alternately reciprocated from the position indicated in Fig. 4, .in which position it is in the act of delivering a can body to the left hand seaming mechanism, to the'extreme opposite position at the other side of the shaft 31i for delivering a can body to the right hand seaming mechanism. The mechanism for rocking or swinging said member about the shaft 31 is made as follows:

95 designates a crank arm which is rigid with the hub 91 of said feed plate. Said crank arm is' connected by a link 96, shown in dotted lines in Fig. 4 and in full lines in Fig. 6, to a disk 98 that is fixed to the upper end of'the before mentioned shaft 77. The ratio of the gears 80, 81, throughwhich the shaft 77 is driven, is such. that the swinging feed arm 90 is swung from one limit of its movement to the other and back to its initial position once during each rotation of the shaft 31 and, therefore, once during each complete reciprocation of each platen shaft 50. The gearing arrangement is such also that the feed plate is swung toward one of the platens 52 to deliver a can body thereon and is arrested'at the limit of its throw before the platen is raised; and when said feed plate is swung to the other limit of its movement, carrying another can body with it to the other platen. the first named platen is raised to present the can body thereon to its associated chuck.

The end edge of the swinging feed plate 90 is curved to correspond to the curvatures of the side rails 83 of the branches 82 of the chute, and when said outer curved edge of the feed plate is in its intermediate position. it constitutes means to arrest the feed travel of j the can bodies; the feed belt at thistimeslip- 'ing beneath the arrested row of can bodies. Vhen the feed plate occupies the limit of its throw at either side, the foremost can body of the row in the chute 65 is delivered against the inner rail 85 of the chute branches in position to be caught by the feed plate in its next swinging'or oscillating movement to be carried to the'other seaming mechanism. Can heads or ends A, Flgs. 8,10, and 11,

j are automatically delivered to the can bodiesas they pass into the machine, said heads being delivered to said can bod es at the- 'jseaming mechanisms in planes below the 'member' 29 midway between the seaming seaming chucks, but above the upper ends of the can bodies. The mechanism herein shown for so delivering the can ends or heads to the can bodies, is made as follows:

100 designates a can head magazine which is located on the extension 29 of the cross mechanisms. Said magazine is axially over the position of a 'canas it is delivered centrally to the branches 82 of the feed'way. The can heads or endscare assembled in said magazine and are supported on the extension 29, and may be fed downwardly by gravity in such amanner that the said can heads or ends may be separately selected from the, bottom of the magazine and delivered alternately to the sidewise dlsposed seaming mechanisms.

I In accordance with the one phase of my invention, the selecting, mechanism to thus separately detach the bottommost can heads or ends from the stack inthermagazineis body below the feedmagazine, no can head or endwill be selected, thereby avoiding the feeding of a can head or end when no ean body is delivered to-a particular seaming v mechanism. The can head or end selectin mechanism is best shown in Figs. 4, 8, an 9, and is inade as follows:

Rising from the swinging feed plate 90 is a bracket 105 having two hollow parallel bearings 106, one .adjacentto each recess 92 of the feed plate. 107, 107 designate studs which reciprocate in said-bearings. They are provided at their upper ends'with horizontal oppositely directed curved selecting fingers 108. The extension'29 of the cross frame member '29 is provided centrall beneath the magazine 100 with a' curve 'slot 110 which communicates with the circular openings 54 of the plate 29 at the sides of the magazine, through which openings 5 1 the can bodies are elevated by the platens 52 into contact with the seaming chucks 46. The upper face of the cross member 29 at the sides of the slot 110 is depressed or recessed at 112 of a width to provide tracks for the passage of the can heads or ends therethrough. Plates" 113 overlie and are attached to said cross member at the sides .of the slot 110 and project at their inner margins over said tracks or depressions 112 to prevent the can ends or heads from rising.

The selecting fingers 108 are located normally below the plane of'the slot '110, as best shown at the right hand side of Fig. 8, in which position, assuming no can body to have been fed into. the path-of the plate 90, they reciprocate with said feed plate below the plane of the lowermost can head or end in the magazine. In this position of the parts said fingers are'inoperativeto select and feed the canheads. When a can body is delivered across the path of said plate and in position to be delivered thereby to one of the seaming mechanisms,-m eans are provided to raise the studs 107 and the fingers 108 so as to permit the fingers to engage the lowermost can head of the stack in the magazine and to carry it, along with'the can body,'to one'of the seaming mechanisms; the

magazine being provided at opposite sides,

and near its bottom with downwardly openlng recesses 11 1 to receive the fingers 108 when raised into the plane of the slot 110 to permit said fingers to be raised in position to engage the lowermost can end .in the stack. The means herein shown. for thus raising said studs and'said selecting fingers are made as follows :v i

115, 115 designate swinging levers pivoted at 116 to the swinging feed plate 90, with the free end of each lever adjacent to one of the can body engagingseats or recesses 92 of said feedplate. The free ends of said levers are provided with enlargements or heads 118, and the outer margins of said heads normally extend beyond the margins of the can engaging recesses 92, as indicated at the righthand side of Figs. 4 and 9. The said levers are urged toward their normal positions by springs 119 against limiting stops 120. The inner margins of said lever heads are beveled at 121 on their upper faces adjacent to the lower rounded ends of the studs 107, as best shown in Figs 4a and 8.

With thisconstruction, it-will be observed that when the swinging feed plate is swung toward a. can body when the latter is at the inner end of the chute, the outer margin of the. head 118 of the lever at the forwardly moving side of the plate first engages the can body, with the result of swinging the lever rearwardly and. of forcing the beveled. edge 121 thereofunder the rounded lower end of the adjacent selecting finger stud 107,

;whereby the selecting finger 108 thereof is raised into the slot 110 in the plane of the lowermost can head in the magazine 100. Therefore, as the feedplate 90 continues to,

move toward one of the seaming mechanisms at one limit of its throw, a can head is caused to travel along with the can body, the elevated selector finger 108 traveling at this time in the slot 110 and the can head or end traveling in the track 112. When the can head or end reaches the opening 54 of.

the destined seaming mechanism, said can head drops upon a lip or shoulder 122 in said opening 54 in position to be engaged by the can body when it is raised by its sup porting platen.

As shown in full lines in Fig. 8, it is assumed that the swinging plate 90 is moving toward the left to carry a can toward the seaming mechanism at the left hand side of the machine and that the contact of the head 118 of the lever 115 adjacent the cam has swung said leveraway from the can to bring its beveled margin 121 beneath the adjacent selecting finger stud 107 so as to raise its finger 108 in position to select and carry the lowermost can end along with the can body.

In dotted lines at the left hand line of said Fig. 8 is illustrated the positions which said lever head 118 and associated selecting finger occupies when no can is presented; it being assumed that in this position the swinging can body feeding plate is moving toward the right, with the head 118 of the lever 115 projecting beyond the feed lever 90. Under these conditions the selector finger 108 is not raised, so that the selector mechanism passes beneath the magazine 100 without removing an end cap or head therefrom.

The opening 54 in the cross member 29 is beveled so as to fiaredownw'a rdly and there by constitute a centering guide for centering the can body within said opening, and relatively to the chuck 46, when the can body with a head applied thereto is raised against said chuck, Arranged at diametrically opposite sides of each seaming opening 54 are upright guide blocks 125, Figs. 1, 3 and 10, bolted or otherwise rigidly secured to the cross member 29. Said blocks are provided on their inner sides with inner beveled centering surfaces to center the can heads or ends relatively to the can bodies as the latter are raisedabove said opening toward the seaming chucks. The blocks 12:") are provided at their tops with overhanging arms 127 which extend inwardly toward the peripheries of the chucks to limit upward movement of the can bodies, and the chucks are provided at their lower sides with rims or lips 128 which engage the under sides of said overhanging arms.

The upper ends of. the can bodies are formed with outturned curved flanges or lips 11 (Figs. 15,16 and 17) andthe can heads or ends. which are centrally depressed to fit withinthe open tops of the can bodies. are

formed with radial flanges a and with in shown, the platens are mounted, through' the medium of anti-friction hearings, on studs 130 which have limited sliding movement in the hollow upper ends of said shafts; and springs 131, interposed between shoulders in said shaft and the lower ends of said studs, permit said. platens to yield back-- wardly relatively to the can bodies to accommo'date work of varying dimensions. Pins 132 which extend through the hollow upper ends of said shafts and through elongated openings in the studs 130 limit the end play of said studs in said shafts.

Arranged above said openings 54 of the cross member 29 and flanking each seaming chuck 46 are two seaming rolls 133, 134. Said rolls are generally similar in their peripheral contours, being formed with annular bottom beveled surfaces 135, 136, respectively, with annular seam forming grooves 137. 138, respectively, and above said grooves with enlarged cylindric portions 139, 140, respectively, forming downwardly facing shoulders 141, 142, on the respective rolls 133 and 134. The seam forming grooves 137 of the rolls 133 are radially deeper, but vertically narrower, than the grooves 138 of the rolls .134, and said rolls 133 operate to preliminarily interfold or roll the can body and end flanges in the manner shown in Fig. 16, the rolls 134 operating to complete the double seaming in the flattened formation shown in Fig. 17.

Said seaming rolls 133, 134 are rotatively supported on vertical axes carried by the outer arms 143 of horizontally swinging levers that are pivoted between their ends to studs 144 which are anchored to and rise from the intermediate cross frame member 29. The said levers are arranged in pairs on opposite sides of the main shaft 31 above said cross frame member 29. The corresponding levers of each pair are arranged to present their roll to one of the seaming mechare vertically spaced from each other and are angularly spaced one in advance of the other, relatively to the direction of rotation of the cam, theupper' cam 147 beingshown' as angularly spaced substantially 90 degrees from the lower cam 148. The inner arms 145 of the roll carrying levers of each pair are offset vertically with respect to each other to present their bearing studs in line with their respective cams, as best shown in Fig. 12. For this purpose the inner arm 145 of one of the levers of each pair is offset downwardly from the outer roll bearing arm 143, the inner arm 145 of the other levers being in the planes of their outer roll bearing arms 143. L I

'The said cam bearing studs 146 of the levers are spring pressed in. Order to permit the rolls to yield away from the joint b tween the can bodiesand heads 'in passing over an abnormal thickness of metal. This yielding effect may be produced by providing'the lever arms 145 with sockets 151, through the inner open ends of which the bearing studs 146 slide; and spiral springs 152 are interposed between said studs and shoulders formed by plugs 153-threaded into the outer ends of said sockets.

The arrangement of the seaming roll carrying levers and of their actuating cams 147, 148 is such that when a can body and. head'is presented to one of the chucks, with their flanges assembled in the manner shown in Fig. 15, the beveled surface of the preliminary seaming roll centers the can heads on the can bodies. As the assembled flanges are raised past the beveled surface 135 of the roll 133 into the planeof the preliminary seaming groove 137 the roll is advanced-toward the seamed joint and the flanges are interfolded so as to interlock the terminal head flange a? with the .edge ofthe body flange a in the manner shown in Fig. 16. After the interfolded flanges have been subjected to the action of the preliminary folding groove for the required interval the preliminary folding roll 133 is withdrawn from the chuck by the passage of. the cam 147 away from the bearing stud 146 of the roll carrying lever, and the cam 148 is brought to bear against the bearing stud 146 of the lever of'the companion finishing roll 134. The action of the groove 138 of thelatter roll is to flatten the interfolded flanges in the manner shown in Fig. 17 and to complete the double seaming of the interlocked joint.

The seaming rolls 133,134 ass0ciated with each chuck are operative in the order mentioned throughout substantially one half the rotation of the cam'collar 149, and during the operation of the rolls associated with one seaming mechanism a can body and head is deliveredto the other seaming mechanism in position to be,'in a like manner, acted 'upon by the other opposing seaming rolls 133, 134

associated therewith. In the arrangement from the double seaming chucks, ejectordevices associated with said head are provided.

Said ejector devices consist of headed' plungers 155, arranged axially of the chucks, which are slidable in the lower hollow ends of the chuck shafts or spindles 44. They are normally projected from the lower ends of said shafts below the chucks by backing springs 156 within said hollow shafts. The projecting movement of said plungers is limited by stop pins 157 which extend through the hollow lower ends of the shafts or spindles and through slots in the ,plungers. When a can head and body are presented to a chuck, the ejecting plunger 155 is forced backwardly into the shaft or spindle against the action of the spring 156, and when the pressure of the can head against the chuck is released by lowering the platen the spring 156 serves, through the medium-of the plunger, to eject the can.

The operation of the machine will be apparent from the foregoing description, but may be briefly recapitulated as follows:

The can head magazine is filled with can ends or heads and the can bodies are fed into the machine through the chute 65 and are, by the swinging feed plate 90, alternately delivered through the branches 82 to the-oppositely located platens 52. As a can is delivered from the chute to one of the platensthe can head selector and feed- .ing mechanism is operative to feed the lowermost can head or end of the stack in the magazine to the opening 54 of one of the feeding mechanisms, the can head being delivered onto the lip or shoulder 122 in said opening. When the can body is delivered on the platen said platen is raised, through the action of the cam 33 and the can head is as sembled on the body as the flanged end of the can body is raised past the lip or shoulder 122.

.The cam 33 thereafter forces the can body with the assembled head thereon against the chuck 46 which is rapidly rotating, and the guide faces 126 of the blocks 125 serve to center the can head or end on the body. As the can head or en approaches the chuck the ejecting plunger 155 is forced upwardly into the hollow end of the chuck spindle or shaft against the action of the spring 56.

body and its assembled Just after the final chucking ot' the can body and head the preliminary seaming roll'is moved toward the chuck through the action of its cam 14'? and in the final chucking movement of the can head and body the parts ar brought to the position illustrated in Fig. 16. and the rotation of the can body and head subjects the joint to the action of the preliminary seaming roll 133, which latter is freely rotatable on its spindle. Subsequently the finishing seaming roll is brought into contact with the inter-folded flanges through the action of its actuating canf148 in the manner illustrated in 17 to complete the double seaming operation.

During the presentation of one can body to one seaming mechanism and the operation of interfolding and pressing the flanges to produce the double seam the feed plate 90 is swung across the feed chute toward the opposite seaming mechanism, carrying with it to said latter mechanism another can body and a can head to be subsequently operated upon by the last mentioned seaming mechanism in the manner before described. lVhen the platen is lowered to release a finished can the associated spring 156 acts, through the ejecting plunger 155, to release the can from the seaming mechanism. These operations are repeated as long as can bodies are delivered to the machine through the feed chute.

The blocks 125 are angularly spaced from the seaming rolls about 90 degrees and serve to center the can ends when in their seaming position. The overhanging arms 127 prevent a can body being forced upwardly past the chucks, if no can end be present. and, therefore, avoid rolling the top edge of the can body over the seaming chuck in a manner to lock the same on the chuck.

In the event of failure to deliver a can to the machine through said feed chute the can head or end selecting mechanism fails to operate for the reason that the selector mechanism lever 155 is not forced back by contact with a can body in a manner to raise the selector finger at the forwardly moving side of the feed plate. Therefore, no can head or end is delivered when no can body is present.

While the mechanism constituting the illustrated embodiment of my invention has been described with considerable particu larity, it will be understood that the invention is not intended to be limited to the specific details of the illustrated embodiment. except as to claims wherein the particular construction is set forth, and as imposed by the prior art.

I claim my invention:

1. In a machine for locking can ends to bodies. the combination with seaming mechanisms. ot' oscillating means pivoted on an axis between the seaming mechanisms for separately delivering can bodies and can ends alternately in assembling alinement to said seaming mechanismsv 2. In a machine for locking can ends to bodies, the combination with seaming mechanisms and vertical spaced feed means for directing can bodies and can ends between said mechanisms, of a member swingable across said feed means for delivering can bodiesand ends alternately [0 said seaming mechanisms.

- In a machine for locking can ends to can bodies, the combination with seaming mechanisms, and means driven from a shaft intermediate said seaming mechanisms for delivering can bodies alternately to said seaming mechanisms, of can end delivering mechanisms constructed with means to render said can end delivering mechanisms inoperative when no can body is delivered.

at. In a machine for locking can ends to an bodies, the combination with seaming mechanisms,- and means for delivering can bodies alternately to said seaming mechanisms, of can end delivering mechanisms embracing a cont-act member which, by engagement with a can body, renders operative the can end delivering mechanism.

5. A machine for locking can-ends to can bodies comprising oppositely located seaming mechanisms. means to direct can bodies between said mechanisms, othermeans to deliver can ends to said seaming mechanisms, and a member swingable on an axis located between said mechanisms to feed can bodies axially alined with said can ends alternately to said seaming mechanisms. 6. A machine for locking can ends to can bodies comprising oppositely located seaming mechanisms, a feed chute to direct can bodies therebetween, means to' deliver can ends to said seaming mechanisms, and a teed member swingable on an axis between said mechanisms to teed can bodies and can ends alternately to said seaming mechanisms.

7. A machine for locking can ends to can bodies comprising oppositely located seaming mechanisms, means to direct can bodies between said seaming mechanisms. a swingablc member oscillating on an axis between said mechanisms to teed can bodies alternately to said seaming mechanisms. and means carried by said swingablc member to deliver can ends to said seaniing mcclne nisms.

A machine for locking can ends to can bodies comprising oppositely located seaming mechanisms. means to direct can bodies to the machine between said seaming mechanisms. a swingable member to feed can bodics alternately to said seaming mechanisms. a can end magazine located over said chute. and a can end selector and feed mechanism for delivering can ends from said magazine alternately to the, seaming mechanisms.

I bodies'comprising oppositely located seaming mechanisms, means to direct can bodies between said seaming mechamsms, a swingable member to feed can bodies alternately to said seaming mechanisms, a can end magazine between said seaming mechanisms, and selecting and feeding mechanisms for feeding can ends from said magazine alternately to the seaming mechanisms, constructed with means operative by a can body to select and deliver a can end only when a can body is delivered to a seaming mechanism.

11. A machine for locking can ends to can bodies comprising "seaming mechanisms,

means to deliver can bodies alternately to said seaming mechanisms, and a can end,

selecting and feeding mechanism embracing a contact member adapted by contact with,

a can bodyvto render the can end selecting and feeding mechanism operative.

12. A machine for locking can ends to can bodies comprising seaming mechanlsms,

means to said can body delivering means embracing a contact member adapted by contact with v a can body to render the can end selecting and feeding mechanism operative.

13. A machine for locking can ends to can bodies comprising seaming mechanisms, a swingable member to feed can bodies alternately to said seaming mechanisms, and a can end selecting and feed. mechanism to deliver can ends to said seaming 'mechanisms, embracing a contact member adapted for contact with a can body to render said can end selecting and feeding mechanism operative.

14. A machine for locking can ends to can bodies comprising oppositely located seaming mechanisms, means to feed can bodies alternately to said seaming mechanisms, and a can end selector and feeding mechanism for delivering can ends alternately to said seaming mechanisms, embracing raisable and lowerable selector and'feeding fingers. a

- 15..A machine for locking can ends to can bodies comprising oppositely located seamingmechanisms, means to feed can bodies alternately to seaming mechanisms, at

deliver can bodies alternately to said seamingmechanisms, and a can'end selecting and feedlng mechan sm carried by can end selector and feeding mechanism for delivering can ends alternately to said seaming mechanisms, embracing raisable and seaming mechanisms, a chute to direct can bodies between said seaming mechanisms, a

can end magazine located over said chute, means movable across said chute to deliver can bodies alternately to said seaming mechanisms, and a can end selecting and feed mechanism carried by said can body delivering means movable across the bottom of said magazine.

17 A machine for locking can ends to can bodies comprising seaming mechanisms, a swinging feed plate for delivering can bodiesalternately to said seaming mechanisms provided at its-opposite sides with can body engaging recesses, and can end selecting and feed mechanism carried by said plate, and including setting members projecting from the sides of said plate at said recesses for contact with can bodies.

18. A machine 'for locking can ends to can bodies comprising seaming mechanisms, a swinging feed plate for delivering can bodies alternately .to said seaming mechanisms and provided at its opposite sides with can body engaging recesses, and canend selecting and'feed mechanism carried by said plate, comprising vertically movable selector fingers and guide bearings therefor, and means adapted to project beyond said plate at said recess to raise said selector fingers. 19. A machine for locking can ends to can bodies-comprising seaming mechanisms, a swinging feed plate for delivering can bodies alternately to said seaming mecha-.

nisms and provided at its opposite sides with can body engaging recesses, and can end selecting and feed mechanism carried by said plate comprising spaced guide bearings rising from 'said plate, studs reciprocable therein and provided with oppositelydirected selecting andfeed fingers, and yieldably mounted members which normally project beyond said plate at said recesses and constructed with means to raise said studs and fingers when said members are 'forced inwardly by contact with can bodies.

20. A machine for locking can ends to can bodies comprising seaming mechanisms, a swinging feed plate for delivering can bodies alternately to said seaming mecha nisms and'provided at its opposite sides with can body engaging recesses, and can end selecting and feed mechanism carried by said plate comprising spaced guide bearings rising from said plate, studs reciprocable therein and provided with oppositely swinging feed plate for delivering canbodies alternately to said seaming mechanisms and provided at its opposite sides with can body engaging recesses, and can end selecting and feed mechanism carried by said plate comprising vertically movable selector fingers and guide bearings. there- 'for, and means adapted to projectbeyond said plate at said recesses to'raise said selector fingers, combined with a can end magazine above said feed plate through the 'bottom of which said fingers pass.

22. A machine for locking can ends to can bodies comprising a frame embracing a plate provided with two oppositely disposed openings and therebetween with a third opening, a can end magazine over said third opening, seaming mechanisms operative at said first named openings, said plate being provided with slots which extend from the intermediate opening to the opposed openings, feed means to deliver can bodies alternately to the seaming mechanisms and can head selecting and feed means carried thereby and movablethrongh said magazine and through said slots.

23. A machine for locking can ends to can bodies comprising a frame embracing a plate provided with two oppositely disposed open ings and therebetween with a third opening, a can end magazineover said third opening. seaming mechanisms operative at said first named openings. said plate being provided with slots which extend from the intermediate opening to the opposed openings, feed means to deliver can bodies alternately to the seaming mechanisms, can head selecting and feed means carried thereby and normally below the le .-l of the bottom of said magazine and slot. and means operative by the presence of a can body to raise the selectslots.

24. A machine for locking can ends to can bodies comprising a frame embracing a plate provided with'two oppositely disposed openings and therebetween with a third opening, a can end magazine over said third opening, seaming mechanisms operative at said first named openings. said plate being provided with slots which extend from the intermediate opening to the opposed openings and provided above said slot with can end feed ways. feed means to deliver can bodies alternately to the seaming mechanisms and can head selecting and feed means carried therebv and movable through said magazine and through said slots.

mg and feed means into the plane of said.

25. A machine for locking can heads to -can bodies comprising a frame, a shaft, ro-

tatively mounted therein, seaming mechanisms at the sides of said shaft, with means to deliver can heads and can bodies thereto,

said seaming mechanisms embracing rotative seaming chucks, seaming rolls coopcrating therewith, levers pivoted to the frame on which said seamin rolls are mounted, and means carried by theshaft and acting on the levers to present the rolls toward the seaming chucks.

26. A machine for locking can heads to can bodies comprising a frame, a shaft r0- tatively mounted therein, seaming mechanisms at the sides of said shaft, with means to deliver can heads and can bodies thereto, said seaming mechanisms embracing rotative seaming chucks, two pairs of levers, one

at each side of said shaft, seaming rolls carried by said levers and cooperating with the chucks, and cam means on the shaft for actuating said levers.

27. A machine for locking can heads to can bodies comprising a frame, a shaft r0- tatively mounted therein, seaming mechanisms at the sides of said shaft, with means to deliver can heads and can bodies thereto. said seaming mechanisms embracing r0- tativc seaming chucks, a pair of levers pivoted to the frame at each side of the shaft, with the outer arms of corresponding-levers of each pair directed toward a seaming chuck, seaming rollscarried by the outer arms of said levers and cooperating with said chucks. the inner arms of said levers being vertically offset, and vertically spaced cams rotating with said shaft and acting against said inner lever arms.

28. A machine for locking can heads to can bodies comprising a frame, a shaftrotativelv mounted therein, seamingmechanisms at .the sides of said shaft, with means to deliver can heads and can bodies thereto, said seaming mechanisms embracing rotative seaming chucks, pairs of levers pivoted to the frame at each side of the shaft, with the outer arms of the corresponding levers of each.pair directed toward a seaming chuck, seaming rolls carried by said outer arms and cooperating with said chucks, the inner arms of said levers being vertically offset, and vertically spaced cams rotating with said shaft and acting against the said inner lever arms, said arms being provided with yieldingly mounted cam studs for engagement with said cams.

29. A machine for locking can heads to can bodies comprising a frame, a shaft rotatively mounted therein, seaming mechanisms at the sides of said shaft, with means to deliver-can heads and can bodies thereto, said seaming mechanisms embracing rotative seaming chucks, seaming rolls cooperating therewith, levers pivoted to the frame on being two seaming rolls associated with each chuck, one a preliminary roll and the other a finish fig roll, and means carried by the shaft for successively presenting the preliminary seaming and finishing seaming rolls toward the chucks.

30. A. machine for locking can heads to can bodies comprising a frame, a central operating shaft rotatively mounted therein, seaming mechanisms on opposite sides of the plane of the shaft, with means to deliver can heads and can bodies thereto, a cam fixed to said shaft, vertically movable platens actuated by said cam to present can bodies toward theseaming chucks and lower them therefrom, said seaming mechanisms embracing also seaming chucks, two seaming rolls associated with each chuck, two pairs of levers pivoted to the frame, with the corresponding arms of each pair carrying the rolls associated with one of the seaming chucks and a cam 'on said shaft for actuating said seaming roll levers.

31. A machine for locking can heads to can bodies comprising a frame, a central opcrating, shaft rotatively mounted therein,- seaming mechanisms on opposite sides of the plane of the shaft, with means to deliver can heads and can bodies thereto, a cam fixed to said shaft, vertically movable platens actuated by said cam to present can bodies toward the seaming chucks and lower them therefrom, said seaming mechanisms embracing rotative seamingchucks, a pair of seaming roll levers pivoted to the frame at each side of said shaft, seaming rolls carried by the outer arms of said levers, the inner arms of said levers being vertically offset, and vertically spaced cams carried by said shaft for actuating said seaming roll levers.

32. A machine for locking can heads to r can bodies comprising a frame, a central operating shaft, seaming mechanisms located on oppositesides of the plane of said shaft,

a feed chute to direct can bodies to the machine between said seaming mechanisms, a-

feed member mounted to rock onv said shaft and swingable across said chute to deliver can bodies from the chute alternately to the seaming mechanisms, means to deliver can heads, to said seaming mechanisms, vertically movable platens at the sides of said shaft by which the can bodies are presented to said seaming mechanisms, a cam fixed to l and rotating with said shaft for alternately raising and lowering said platens, and

means operated by rotation of said shaft to actuate said swinging feed member.

A machine for locking can heads to can bodies comprising a frame, a central operating shaft, seaming mechanisms located on opposite sides of the plane of said shaft, a feed chute to direct can bodies to the maseaming mechanisms, means to deliver can heads to said seaming mechanisms, vertically movable platens at the sides of said shaft by which the can bodies are presented to said seaming mechanisms, a cam fixed toand rotating with said platens for alternately raising and lowering said platens, a gear fixed to and rotating with said cam, a rotative shaft provided with a gear which meshes with the cam gear, a disk fixed to said shaft, and a link connecting said disk to said swingablefee'd member.

34:- A machine for locking can heads to can bodies comprising a frame, a central operatingshaft. seaming mechanisms located on opposite sides of the plane of said shaft, a feed chute to direct can bodies to the ma chine between said seaming mechanisms, a feed member mountedto rock on said shaft and swingable across said chute to deliver can bodies from the chute alternately to the seaming mechanism, means to deliver can cally movable platens at the sides of said shaft by which the can bodies are presented to said seaming mechanisms, a cam fixed to and rotating With said shaft, a gear fixed to and rotating with ,said cam, and operative connections between said gear and said swingable feed member for-actuating the.

shaft geared to said central shaft and chuckspindles, platens axially below said chucks, shafts, on the upper ends of which said platens are rotatively mounted, a cam fixed to and rotating with the central shaft for raising and lowering said platen shafts, means to direct can bodies to the machine between the seaming mechanisms, means to'deliver can heads to the seaming mechanisms, and a member swingingly mounted on said shaft, with means to actuate it to deliver can bodies alternately to said seaming mechanisms.

36. A machine for locking can heads to can bodies comprising a frame, a vertical rotati've shaft therein, seaming mechanisms at the sides of said shaft embracing rotative seaming chucks and their spindles, the latter rotatively mounted in said frame, a. driving shaft geared. to said central shaft and chuck spindles, platens axially below said chucks,

heads to said seaming mechanisms, verti-' to direct cag. bodies to the machine between the seaming mechanisms, a can head magazine between said seaming mechanisms, a member swingingly mounted on said shaft, with means to actuate it to deliver can bodies alternately to said seaming mechanisms, and a can end selecting and feed mechanism carried by said swinging member and movable. through said magazine.

37. A machine for locking can heads to can bodies comprising a frame provided with a lower cross frame member, standards rising from said cross frame member, upper and intermediate cross frame members supported on said standards, said lower and intermediate cross frame members being provided with alined openings, seaming mechanisms embracing seaming chucks located above the intermediate cross frame member openings and provided with spindles which are rotatively mounted in the upper cross frame member, platens adapted to the openings in the lower cross frame member and provided with shafts which are mounted to reciprocate in the frame, a cam fixed to and rot-ative with said central shaft for alternately. raising and lowering said platens to present can bodies thereon to said chucks, a driving shaft geared to said central shaft and to the chuck spindles, a chute for di rect-ing can bodies to the machine between said seaming mechanisms, meansfor delivering can ends to said seaming mechanisms, and a feed plate 'swingable about said central shaft across said chute for delivering can bodies from the chute alter platens. i

38. A machine for locking Qcan heads to can bodies comprising a frame provided with a lower cross frame member, standards rising from said cross frame member, upper and -1ntermediate cross frame members supported on said standards, said lower and intermediate cross frame members bein no .vided at the sidesof said shaft with alined openings, seaming mechanisms embracing seaming chucks located above the interme diate crossframe member openings and provided with spindles which are rotatively mounted in the upper cross frame member, platens adapted to the openings in the lower cross frame member and provided with shafts which are mounted to reciprocatein the frame, a cam fixed to and rotative with the central shaft for alternately raising and lowering said platens to present can bodies thereon to said chucks, a driving shaft geared to said central-shaft and to the chuck spindles. a chute for directing can bodies to the machine between said seaming mechanisms, means for delivering can ends to said seaming'mechanisms, a feed plate swingable about said central shaft across said chute for delivering can bodies from the chute alternately to said platens, and means actua ately to said ated by rotation of said central shaft for swinging said feed member.

shaft for actuating said swinging member.

40. A machine for locking can ends to can bodies comprising a frame, a central operating shaft rotatively mounted therein,

seaming mechanisms at. the sides of the shaft embracing chucks and their spindles, which latter are rotatively mounted in said frame, with means for presenting can bodies and can lieads to said seaming mechanisms, and a driving shaft disposed transversely to said central shaft and said chuck spindles, and directly geared to said shaft and spindles to drive the spindles at high,

speed relatively to said central shaft.

41. A machine forlocking can ends to can bodies comprising a frame, a central operating shaft rotatively mounted therein, seaming mechanisms at the sides of the shaft embracing chucks and their spindles, which latter are rotati-vely mounted in said frame, with means for presenting canbodies and can heads to said seaming mechanisms, a driving shaft disposed transversely to said central shaft and said chuck spindles, worm gear mechanism connecting said driving shaft to the central shaft, and spiral gears connecting said driving "shaft to said chuck spindles.

42. In a machine for the purpose set forth, the combination with a central operating shaft and chuck spindle parallel thereto,-

one at each side of the shaft, of a driving shaft transverse to the operating shaft and spindles, worm gear connections between said driving and operating shafts and spiral gear connections between the driving shaft and said spindles.

43. In a machine for locking can heads to can bodies, the combination with a vertically reciprocatable platen shaft and a rotative peripherally grooved cam to actuate the same, of a pin extending transversely through said shaft, a roller mounted on said pin and traveling in said groove, and a guide sleeve surrounding said shaft, through which said pin extends, provided with curved arms or flanges which embrace the periphery of the cam at the sides of the s a to can bodies, the combination with a verti- 44. In a machine for locking can heads callv reciprocata-ble" platen shaft and a rtative peripherally grooved cam to actuate the same, a pm extending transversely a recess in which one end of said roller is seated, and provided also with curved arms or flanges wlnch embrace the periphery of the cam at the sides of the shaft.

l5. In a machine for locking can ends to can bodies, a magazine for the can ends, a

can end selecting and feed member pivoted on an axis parallel to and out of line with the magazine axisto swing across the magazine bottom, said member being raisable and loWerable relatively to the magazine bottom, and means operative by contact with a 1,see,4es

moving can body to raise said selecting and feed member.

L6. A machine for locking can bodies comprising a seaming mechanism, a can head magazine, a selector finger movable through the bottom of the magazine and provided with a guide member extending downwardly therefrom, and means operative by the presenceof a can body for engagement with the lower end of the guide member to raise said finger into operative position relatively to said magazlne. y

In testimony whereof I claim the foregoing as my invention, I hereunto append my signature at Chicago, Illinois, this eighth day of February, 1918.

HARRISON H. HOOD can ends to

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