US710895A - Can-heading machine. - Google Patents

Description

Patented Oct. 7, |902.

W. BUBIN.

CAN HEADING MACHINE.

(Application med June 21. 1901A 3 Sheets-Sheet L (No Model.)

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No. 7l0,895` I Patented Oct. 7, |902.v

W. RUBIN.

CAN HEADING MACHINE.

Application led June 21, 1901.)

(No Moden.) s sheets-sheet 2,

WHW/5&5 1 /N VEA/TOR. 629% MQW( M A TTORNE Y@ Y Patented Oct. 7, |902.

W. BUBIN.

CAN HEADING MACHINE.

(Applicason filed June 21, 1901.)

(No Model.)

NVENTOI? A BY l' W/TNESSES A TTOH/VE X( Unteren STATES PATENT OFFICE.

YVILLIAM RUBIN, OF SOUTH OMAHA, NEBRASKA.

CAN-HEADING MACE-HNE.

SPECIFICATION forming part of Letters Patent No. 710,895, dated oct'ber 7, 1 902.

.Application filed June 2l, 1901.

ib (all whom, it 711103/ concern.-

Be it known that I, WILLIAM RUBIN, a citi- Zen of the United States, residing at South Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in Can-Heading Machines; and l do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appertains to' make and use the same.

My invention relates to improvements in can-heading machines of that class in which revolving crimpers operate in conjunction with a revolving feeding mechanism.

The objects of the invention are, rst, to provide a smooth and continuous feed mechanism; second, to afford greater facilities for the adjustment of each part independent of all others, and, third, to provide means whereby the finished cans are removed from the canholders.

VVith these objects in view the invention consists in the improved construction, arrangement, and combination of parts of a canholder of this class which will be hereinafter fully described and afterward specifically claimed.

ln the accompanying drawings, which clearly illustrate a machine embodying my iinprovements, Figure l is a view of a machine, partly in elevation and partly in section, parts being broken away to expose entirely the mechanism. Fig. 2 is a central vertical section on a plane passing through the feed ing, crimping, and ejecting mechanisms. Fig. 3 is a detail view, partly in section and partly in elevation, illustrating one of the can-feeding devices. Fig. et is a vertical section of part of the machine, taken on a plane indicated by the dotted line 5cm of Fig. l. Fig. 5 is a vertical sectional View of part of the machine, taken on the plane indicated by the line y y of Fig. l. Fig. 6 is a transverse section through the can-feeding chiite.

Like letters of reference mark the same parts wherever they occur in the various figures of the drawings.

ln the construction of my machine l einploy a suitable frame or base O', upon which are adjustably mounted bearing-heads B, the

seria No. 65,480. dto-modem' said base O having flanges C2 bolted thereto. In these bearing-heads are journaled shafts D D in line with each other and carrying pulleys A A at their outer ends. Upon the opposite adjacent inner ends of the shafts D D are mounted can-holders D D. A shaft N is journaled in suitable bearings secured to the framev O' and has iixed upon it two cams N N, provided with serpentine grooves, in which play rollers M, mounted on the lower ends of levers L L, pivoted at L between lugs M', depending from the bearing-heads B. At their upper ends the levers L are provided with yokes which embrace cross-heads O, which have bearings on the shafts D D. Collars are secured to the said shafts D D ou each side of the cross-heads to prevent their moving longitudinally on the said shafts andso that when the said cross-heads are actuated they will reciprocate the said shafts. At one end of the shaft N is secured one member of a clutch W, the other member of which is attached to belt-pulley Z, the first-mentioned member being mounted slidably upon the shaft and operated by a hand-lever in the usual manner. As the shaft N' is rotated by power applied through the pulley Z, the cams N and their grooves will impart a reciprocating motion to the shafts D D, such motion being cushioned by springs A.

Between the bearing-heads B and the pulleys A can bodies, heads, and bottoms are fed between the holders D D by the rotating can-feed, which is supported upon a shaft D2, mounted in bearings in the outer ends of arms R, projecting from the frame or base. Upon one end of this .shaft is mounted a notched disk or ratchet-wheel U, Which is intermittently rotatedby the oscillation of a lever Q, pivoted upon a shaft and provided with a spring-pressed pawl Q, adapted to alternately engage and be disengaged from the notches of the disk U during such oscillation. The lever Q is oscillated through the medium of a crank O, mounted upon one end of the shaft N and connected to the said'lever Q by an adjustable link P, as shown in Figs. l and 1t. During the time the can heads and bottoms are being crimped, as will be hereinafter described, the can-feed mechanism is held stationary by the spring-pawl T, which.

automatically engages successively in the notches t of a disk S, rigidly mounted upon the shaft D2. y

Pivoted between the bearings K, secured to the framework, is a cross-bar which carries a lever J, to which at its upper extremity is adjustably secured a block F, in which are journaled crimping-rollers E, which rollers during the crimping operation are forced toward the can-holders into their crimping'position by a springj, seated in the casing G', which is provided with a flange G, by means of which it is secured to the framework, said spring having also an adjusting-screw G2 to vary its tension. After the crimping operation is completed the lever J is forced outwardly away from its crimping position and against the tension of the springj by a properly-timed cam H, which presses against a roller I, journaled on the lever, and is thus held a sufficient time to permit a can already crimped to be discharged from its holder and another can to be brought into position and clamped between the holders ready for the crimping operation.

Referring especially to Figs. 2 and 3, it will be seen that the can bodies, heads, and bottoms are supplied to the can-feed mechanism through a can-chute g, having slots Z Z on opposite sides to receive and feed the heads and bottoms separately from the bodies, as shown in Fig. 6.

The can-feeding mechanism is an intermittently-operating one and consists of a wheel or disk et, rigidly secured upon the shaft D2 and having around its periphery an annular groove or recess into which are fixed a considerable number of radially-extending cancarriers h, the outer' ends of said carriers being semicylindrical in shape and suitably grooved, as at d c c, on their inner surface to receive the can bodies, heads, and bottoms and hold the same in proper position for crimping. Mounted above the can-chute g is a shield t', which extends over the top of the can-feeding mechanism and prevents the cans which are being carried around from dropping out or being displaced from the carriers. After the cans have been crimped the withdrawal of the holders by the longitudinal movement of the shafts D will permit them to drop into a chute U', from which they will be received into any suitable receptacle. To assure the removal of all finished cans from the carriers or holders, an ejectorf, mounted upon a bar h, between rods g' g2, projects through slots e in the carriers b and pushes out any finished can which may stick in the carrier, causing it to be dropped into the chute U. `The further operation of the machine may be described as follows: The chute g being filled with can bodies, heads, and bottoms power is applied to pulleys A, A, and Z by means of belts through shafts or other suitable power, causing the continuous rotation of the shafts Dl and N after the clutch has been thrown into engagement with the last-named shaft. By means of the mechanism hereinbefore described consisting of the crank O, link P, lever Q, pawl Q, and disk U the can-feed shaft D2 is intermittently rotated, causing the carriers to move step by step into position between the holders D D, which holders, with the shafts D', are continuously rotated. At proper intervals the holders are forced inwardly by the cams N, levers L, and crossheads C, clamping the cans and holding the heads and bottoms firmly upon the body. This position is maintained a suiiicient length of time to permit of the crimping operation, as hereinbefore described, after which the holders D D and crimping-rollers E E are withdrawn, the crimped can dropped into the chute U', and another can-carrier with the can bodies, heads, and bottoms therein brought into position between the holders D D. The operation is continuous, and all that is necessary is to keep the feed-chute properly supplied with can bodies, heads, and bottoms, all other movement being automatic. Every part of the machine is adjustably independent of every other part, and a smooth continuous feed is effected, as well as an absolutely sure removal of the finished can.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. The combination with a suitable framework and bearings mounted thereon, of canholders and means for actuating them to alternately clamp and release the cans, a shaft journaled in said bearings, a disk mounted thereon, radially-located can-holders projecting from said disk, a notched disk secured to the shaft, a leverloosely pivoted upon the shaft, a pawl pivoted to the lever adapted to engage the notches of the disk, a power-shaft mounted in said framework, a crank secured thereto, a link carried by said crank, the free end of said link engaging said lever, whereby rotation of the power-shaft is designed to oscillate said lever on the shaft for alternately rotating said notched disk and its shaft step by step, a second disk on the said disk-carrying shaft, and a pawl engaging the notches in the last-named disk for holding the feed mechanism in position, substantially as described.

2. A can-heading machine, comprising a frame, can holding and revolving means mounted on said frame, and a crimping mechanism, comprising a lever journaled in the said frame and extending to a point opposite the cans to be crimped, the said journal permitting of a lateral swing of said lever in a vertical plane, crimping means carried by the free end of said lever at either side thereof, means interposed between the frame and the lever for swinging the same toward the cans to be crimped, antifriction means carried by said lever, and a cam engaging said antifriction means for permitting movement of said IOO lever timed to permit the crimping means to engage the cans a given length of time and then lifting the same therefrom, substantially as described.

3. A can-heading machine, comprising a frame, reciprocating can revolving shafts mounted in the frame, head-crimping mechanism, comprising a lever pivoted to the frame at one end, a head carried by the lever at its other end and having laterally-extending arms, crimping-rolls carried by the said arms, a coiled spring for forcing the said lever toward the cans to be crimped, and a cam for limiting the movement of the lever toward said cans under the action of the said spring, the said cam being adapted to permit the crimping-rolls to engage the can-heads a suitable length of time and then to lift the same therefrom, substantially as described.

4. A can-heading machine, comprising a frame, can holding and revolving means mounted on said frame, a crimping mechanism comprising a lever journaled in the said frame and extending to a point opposite the cans to be crimped, crimping-rolls carried by the free end of the said lever, a spring interposed between the frame and the lever for forcing the same toward the cans to be crimped, means for increasing or diminishing the tension of the said spring, and a cam for permitting the crimping-rolls to engage the cans a suitable length of time and then lifting the same therefrom, substantially as described.

In testimony whereof I hereunto affix my signature in presence of two Witnesses.

WILLIAM RUBIN. Witnesses:

H. M. CHRISTIE, l-I. J. COWGILL.

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