US383400A - Machine foe seaming cans - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

G. W. LO'RE.

MACHINE PoR SBAMING GANS.

N0.,383,400. Patented May 22, 1888.

N. PETERS, Phulo-Lithognphnr. Washington. D. C.

(No Model.) 2 sheets-sneer. '2.

G. W. LORE.

MACHINE PoR SBAMING GANS.

No. 383,400. Patented May 22, 1888.

In n12 la r.- e 7J@ v021.

of the break-joint.

Arent trice.,

GEORGE W. LORE, OF DETROIT, MICHIGAN, ASSIGNOR OF FOUR-FIFTHS TO GEORGE L. SILL, CHARLES T. SILL, LOUIS W. BRGGS, AND JAS. S. SPENCER, ALL OF SAME PLACE.

MACHBNE FOR SEAMENG SANS..

SPEGIFICATEON forming part of Letters Patent No. SSS/00, dated May 22, 1888.

Application iled February 23,1888. Serial No. 265,007. (No model.)

To @ZZ whom, t may concern;

Be it known that I, GEORGE W. Lona, a citizen ofthe United States,residing at Detroit, in the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Machines for Seaming Sheet-Metal Cans, of which the following is aspcciiication, reference being had therein to the accompanying drawings.

This invention relates to new and useful improvements in machines for seaming sheet'- inetal cans, more specifically designed for securing heads to the body ofthe can by means of a double seam.

The invention consists in the peculiar construction, arrangement, and combination of the parts, whereby the cau-body with lthe head is held between non-rotatable chucks, which are slidingly secured while the searning is effected by means of a seeming-roller rotated around the head and pressed against it or removed from it by expanding and contracting mechanism.

The different steps in the seaming are executed by the same roller, which for this purpose is provided with a complete set of seaming devices, which are successively brought into action simultaneously with a sliding movement of the chucks, which carry the head of the can into proper position relative to the seaming devices. Automatic mechanism is provided to perform all the steps of seaining in a continuous operation.

In the drawings which accompany this speciiication, Figure l is an elevation of my machine. Fig. 2 is an elevation of the lowerportion of the machine, illustrating the operation Fig. 3 is a plan of the seaming-rollers and their actuating medianism. Fig. 4 is a plan showing the drive mechanism. Figs. 5, G, 7, and S are crosssections through the can, illustrating the operation of the seaming-roller in its different positions. Figs. 9 and l0 are detached perspective views or" the cams on the cam-shaft.

A is the lower and A is the upper chuck, between which the can and head are clamped, B and B are shafts to which these chucks are respectively secured. These shafts slide in suitable vertical bearings, but are non-rotatable. The shaft B', carrying the upper chuck, is secured at its upper end to the arm O, which is also secured to the frame o r bar D, which slides in vertical bearings E, secured to the main standard or frame F, which latter supports all the operating parts of the machine. The shaft B, which carries the lower chuck, slides in vertical bearings G, secured to the sliding frame D, and is provided at `its lower end with the groovcd collar a, into which engages one end ofthe lever b, fulcrumed atc to the sliding frame D, or any part thereof. The rear end of this lever is pivotally connected with one of the two toggle-levers d d, which form the break-j oint e. A link, f, connects the breakjoint pivotally with the foot-lever H. The toggle-lever d is .pivot-ally connected to the sliding frame D at g, and is provided with the heel extension g', which prevents the straightening of the toggle beyond the locking position, as shown in Fig. 1. Suitable springs, h h, are arranged to normally hold the parts in position, as shown in Fig. 2; but when the foot-lever H is depressed the springs serve to lock all the parts iirmly in position, as shown in Fig. 1, thereby compelling the upper and lower chucks to be actuated together by the connecting-frame D.

I is a searning roller, of which there may be one or two, as desired. This seaming-roller is provided with the scanning groove i, the curling-groove t', and the flattening-groove i2, arranged in vertical series.

J J are the two arms of a double cranklever, fulcrumed at j to the end of therevolving head or frame K. The arm J carries the seamingroller on the under side of the head K, and the arm J is secured on top of the head K, and has secured to its free end the link L, which is pivotally secured to the sliding collar M, which slides on the feather on the hollow shaft M, to the lower endoiwhich the head K is secured.

engages with one end of the cam-lever N, which is fulcrumed at 7c to the frame of the machine, and bears at its opposite end. upon the seaming-cam O.

P is the cam-shaft, journaled in suitable vertical bearings and provided with the chuckactuating cam Q, with which engages the arm roo The sliding collar M It, secured to the sliding frame D. A tripping-arm, Z, is secured to the cam Q, and in a revolution of said cam is adapted to strike against the crank Z upon the rock-shaft Z2. To the lower end of the rock-shaft ZAZ is secured another crank-arm, Z3, Fig. 2, adapted to strike against the break-joint e, and thereby effect the breaking of the joint, a spring, Z4, being arranged to keep the tripping-shaft in normal position.

To the upper end of the shaft P is secured the flange m,which carries the pawl m', adapted to engage with the ratchet-wheel n, loosely mounted upon the shaft P. The ratchet-wheel n is provided with the bevel-gear o. Motion is carried to this bevel-gear o from the main drive-shaft p ofthe machine, which is provided with the worm 1)',whicli meshes with the worin-gear p2 upon the shaft p3, and the bevel gear-wheel p4 transmits motion to the bevel gear-wheel o. A bevel gear-wheel, q, upon the main drive-shaft p engages with the bevel-gear r upon the hollow shaft M', which imparts motion to the grooving-roller.

R is a tripping-bar secured at the lower end to the break-joint e, and provided at the upper end with the head S, adapted to engage and operate the trippingdog T, which slides in suitable bearings, as shown in Fig. 4, and projects normally into the path of the heel m2 of the pawl. The head S of the bar R when depressed withdraws the tripping-dog T and permits the spring m3 to throw the pawl into engagement with the ratchet.

In practice the operation of the machine is as follows: In the starting position of the machine the breakjoint is unlocked, as shown in Fig. 2. This withdraws the lower chuck, A, to itslowest position. The operator, placing a can with a loose head upon this chuck, then places his foot on the foot-lever II, and, forcibly depressing it, locks the break-joint, as in Fig. 1. The parts being properly adjusted, the can-head is new held securely between the upper and lower chuck, with the flange A2 of the upper chuck forming -a follower for the seam, as shown in Fig. 5. By the same movement of depressing the foot-lever the tripping-bar R retracts the sliding deg T from the heel of the pawl m, which thereupon engages with the ratchet u, and thereby communicates motion to the cam-shaft P. The cam O upon this cam-shaft thereupon actuates the cam-lever N, which, by raising and lowering the sliding collar M, effects the lateral movement ofthe seaming roller or rollers from or toward the head of the can, while at the same time the head K carries the seaming roller or rollers around the can. It will be seen thatif the sliding collar M is depressed by the camlever the link or links L actuate the double crank-levers to carry the seaming roller or rollers toward the head, while the reverse movement is effected by the opposite movement of the cani-lever. Simultaneously with the operation of the cam O the cam Q operates upon the arm R to raise and lower the sliding frame D,which cai-ries the chucks A A up or down, holding at the same time the can clamped between them. One revolutioii of the cam-shaft P accomplishes the whole seaming operation, and during this operation the chucks A A carry the cali-head for a certain fraction of the revolution, rst, in the relative position shown in Fig. 6, then in the relative position shown in Fig. 7, and then in tlie relative position shown in Fig. 8. In the relative position shownin Fig. 6 tlie seaming-groovefi of the roller forms the seam by crimping over the flange of the head from its normal position. (Shown in Fig. 5.) In the relative position shown in Fig. 7 the curling-groove t" operates upon the seam to curl it over, and in the relative position shown in Fig. 8 the seam is flattened down and thus completed. The proper construction of the cams O and Q to effect this operation of the parts is thus easily determined. After one revolution of the shaft P is completed the break-joint is tripped by the operation of the devices before described, when the lower chuck is let drop and the can is released.

-What I claim as my invention is- 1. The combination,in a can-seaming machine, of the non-rotating and vertically-sliding chucks for holding the can body and head, a seaming roller or rollers mounted upon a frame revolving around the head, expanding and contracting mechanism, substantially as specified, to bring said roller or rollers in or out of contact with the head, and mechanism for raising and lowering the chucks simultaneously, substantially as described.

2. The combination, in a can-seaming machine,of thechucks forholdingtlicean bodyand head, the sliding shafts carrying these chucks, the connecting` mechanism between the shafts to compel their joint operation, and thebreakjoint in said connection to permit the independent operation of one of said sliding shafts, substantially as described.

3. The combination, in a can-seaming machine, of the chucks for holding the can body and head, the vertically-sliding shafts carrying these chucks, the connecting mechanism between these shafts to compel their joint operation, the break-joint in this connection, the foot-lever for locking and the automatic tripping device for unlocking said break-joint, substantially as described.

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4. The combination, in a can-seaming mabrought into proper position relative to the head, substantially as described.

5. The combination,in an organized machine for double seaming canheads to bodies, of the non-rotating chucks for holding the can' body and head, the vertically-sliding shafts to which said chucks are secured, the breakjoint connection between the lower and upper chuck, the seamingroller provided with a set of seaming devices in vertical series, the revolving head carrying such seaming-roller, the eX- panding and contracting mechanism for operating said seamingroller laterally toward and from the cam, with the chuck lowering and raising mechanism, the revolving camshaft for actuating said mechanism, the drive-connection for said shaft, the trippingclutch in said drive-connection, the trippingbar controlling said trip-clutch by the closing of the break-joint, the automatic trip controlling the breaking of the breakejoint by the motion of the cam-shaft, and the foot-lever controlling the closing ofthe breakjoint by the action of the operator, substantially as described.

6. The con1bination,in an organized machine for double seaming can-heads to bodies, of the non-rotating chucks for holding the can body and head, the vertically-sliding shafts to which said chucks are secured, a seaming roller or rollers provided with a complete set of seam ing devices in vertical series,the double cranklever, to one end of which said lever is mounted, the revolving head to which said crank; lever is fulcrumed, the shaft-upon which saro revolving head is mounted, the sliding' collar upon said shaft, the link connecting the sliding collar with the crank-lever, the cam-lever engaging with the sliding collar, the seamingcam actuating said cam-lever, the camshaft upon which said seaniing'cam is mounted, the chuck-operating cani mounted upon the same shaft, the arm engaging with said chuck-opA erating cam, and the vertically-sliding frame which carries the chucks and to which the said arm is secured.

7. The combination, with the verticallysliding chucks carrying the body and head of the can,of the seamingroller revolving around the head of the can and provided with :a set of seaming devices in vertical series, and mechanism, substantially as described, for bringing into operation the successive seaniing devices of said roller, substantially as described.

In testimony whereof I aftix my signature in presence of two witnesses this 9th day of February, 1888.

GEORGE V. LORE.

Witnesses:

P. M. HULBERT, JonN SOHUMAN.

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