US762551A

US762551A - Automatic vacuumizing and double-seaming machine.

Info

Publication number: US762551A
Application number: US16856103A
Authority: US
Inventors: Edwin Norton
Original assignee: AUTOMATIC VACUUM CANNING Co
Current assignee: AUTOMATIC VACUUM CANNING Co
Priority date: 1903-08-07
Filing date: 1903-08-07
Publication date: 1904-06-14
Anticipated expiration: 1921-06-14

Description

PATENTED JUNE 14, 1904.

E. NORTON. AUTOMATIC VAOUUMIZING AND DOUBLE SEAMING MACHINE.

APPLICATION FILED AUG. 7, 1903.

NO MODEL.

5 SHEETS-SHEET 1.

No. 762,551. PATENTED JUNE 14, 1904.

E. NORTON. AUTOMATIC VAGUUMIZING AND DOUBLE SEAMING MACHINE.

APPLICATION FILED AUG. 7, 1903.

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B. NORTON.

AUTOMATIC VAOUUMIZING AND DOUBLE SEAMING MACHINE.

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PATBNTED JUNE 14, 1 904 B. NORTON. AUTOMATIC VAGUUMIZING AND DOUBLE SEAMING MACHINE.

APPLIOATION FILED AUG. 7, 1903.

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PATENTED JUNE 14, 1904,

E. NORTON. AUTOMATIC VAGUUMIZING AND DOUBLE SEAMING MACHINE.

APPLIUATION FILED AUG. 7, 1903.

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UNITED STATES Patented June 14, 1904.

PATENT OEEIcE.

EDWIN NORTON, OF NEWV YORK, N. Y., ASSIGNOR TO AUTOMATIC VACUUM CANNING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLI- NOIS.

AUTOMATIC VACUUMIZING AND DOUBLE-SEAMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 762,551, dated June 14, 1904.

Application filed August 7, 1903. Serial No. 168,561. (No model.)

To all w/wm, it may concern:

Beitknown that I, EDWIN NORTON, acitizen of the United States, residing in New York, in the county of New York and State of New York,have invented a new and useful Improvement in Automatic Vacuumizing and Double- Seaming Machines, of which the following is a specification.

My invention relates to machines for vacu- I0 umizing or exhausting the air from. cans and seaming the covers thereon.

The object of my invention is to provide an automatic machine of a simple, efficient, and durable construction by means of which sheetmetal cans may be automatically, rapidly, and cheaply vacuumized, hermetically sealed, and the covers thereof double-seamed thereon.

My invention consists in the means I employ to practically accomplish this object or result-that is to say, it eonsists,in connection with a continuously-moving carrier having a plurality of vertically-reciprocating can-seats thereon, each adapted to receive and support a single can or vessel, and a plurality of re- 2 5 ceivers mounted on the carrier open at their lower ends and adapted to be closed by the vertically-reciprocating can-seats, of an exhaust mechanism, means for automatically opening and closing the exhaust to each receiver as 3 the carrier moves, a double-seaming head inside each receiver having a plurality of successively operating double seaming rollers, means for automatically feeding or delivering the cans one by one upon the can-seats of the carrier, means for automatically discharging the cans therefrom after they have been vacuumized and the covers double-seamed thereon, means for vertically reciprocating the canseats, and means for operating the other parts 4 in proper succession to first close the can-seat against the receiver and move the can Within the receiver, exhaust the air therefrom and from the can therein, then force the seaminghead down upon the cover of the can to compress the packing interposed between the can and its cover, and thus hermetically seal the can in occur) or while the vacuum is maintained in the receiver, then admit air to the in different positions.

receiver andopen the same by withdrawing the vertically reciprocating can seat therefrom, the seaming-head following the canseat down, and thus holding the vacuumized can clamped between the seaming-head and the can-seat, and then finally operating the seaming-rollers to double-seam the cover on the vacuumized can, the seaming operation being performed while the can is separated from the receiver, so that the seaming operation can be inspected. The vacuumized and double-seamed can is then automatically discharged from the machine.

My invention also consists in the novel construction of parts and devices and in the novel combinations of parts and devices herein shown or described.

In the accompanying drawings, forming a part of this specification, Figure 1 is a plan view of an automatic combined vacuumizing and double-seaming machine embodying my invention. Fig. 2 is a central vertical longi- 7o tudinal section. Fig. 3 is a horizontal sec- .tion on the broken line 3 3 of Fig. 2. Fig. 4 is a horizontal section on line 4 4 of Fig. 2.

Fig. 5 is a detail elevation of the can-feed mechanism. Fig. 6 is a detail section on line 6 6 of Fig. 2. Fig. 7 is an enlarged detail central vertical section through one of the receivers. Figs. 8 and 9 are enlarged detail central vertical sections of one of the doubleseaming heads, showing the seaming-rollers 0 Fig. 10 is a horizontal section on line 10 10 of Fig. 8. Figs. 11 and 12 are detail sectional views before and after the seaming operation.

In the drawings like letters of reference in- 8 5 dicate like parts throughout all the figures.

In said drawings, A represents the frame of the machine.

B is a continuously-moving carrier, preferably arotatory turret or wheel, furnished with 9 a plurality of vertical reciprocating can-seats 7), having registering pins or devices 7) for registering the cans with the chucking or clamping disks (Z of the seaming-heads D, which are likewise mounted on the carrier .above the can-seats Z) and which reciprocate vertically with the can-seats after the cans are clamped between the can-seats and the seaming-heads.

C C are a plurality of vacuum-receivers, each preferably bell-shaped or open at its lower end and mounted on the rotatable carrier B. Each of the receivers C is furnished at its lower end with an elastic or rubber packing c to close and seal the receiver tightly against the can-seats b of the carrier B. WVhen the vertically-reciprocating can-seat I) is in its lowermost position, its upper face is flush with the upper face of the horizontal plate B of the carrier B, said plate B having a series of recesses I) to receive the can-seats 7). Each of the can-seats?) is preferably furnished with an inserted thin disk of rubber 71 to compensate for inequalities in the heights of the cans. The receivers C are rigidly but preferably removably connected to an upright drum or shell B of the carrier B by brackets B furnished with connecting-bolts. Each of the receivers G is furnished with a stufling-box G, through which the operating-shaft D of the seaming-head D extends.

The vertical]y-reciprocating can-seats b are vertically reciprocated or operated, as required, to first move the can-scat upward and move the can within the receiver and close the lower end of the receiver and then, after the air has been exhausted from the receiver and can and the clamp-disk (Z of the seaminghead D moved down to clamp the cover on the can, to move downward with the seaming-head to separate the can and seaming-head from the receiver and to bring the can-seat 7) again flush with the plate B of the carrier B, so that the can can be discharged automatically after the seaming operation is completed by means of a stationary cam or sinuous track A on the frame of the machine, which engages astem 7/ of the can-seat 7). The stem 6" is preferably provided with an antifriction-roller 7/ to travel on the cam or track A.

Leading into each of the receivers C is an exhaust-pipe E, communicating with an exhaust device E through pipe E to the valves F, which control the communication. The valve-shells F of the valves F have each an exhaust-portf and an inlet-portf, through which latter air may be admitted to the receiver to break the vacuum after the cover has been seated on the can or vessel by operation of the clamping-disk (Z of the seaminghead D in each receiver. Corresponding ports in the valves F communicate with the ports f f in the valve-shells F. The valveshellsE are mounted on the carrier B. The frame A has a central standard or shaft A forming or having a hearing A for the jour nals or hub B B of the carrier B and provided with stuffing box connections a a with said carrier. The exhaust-pipe E leading to the exhaust device E, communicates through a channel a in the sleeve or bear- -stems E engage as the carrier B rotates.

ing A" with a chamber a", which has a communication L through the hub 13* with a chamber 5 in said hub 13*, into which lead the exhaust-pipes E, which extend to each of the receivers and in which pipes E the valves F and valve-shells F are inserted. The valves F are automatically operated or reciprocated as the carrier B rotates preferably by a stationary cam F secured to a stationary upright shaft or post A", which cam the valve- A spring F on each of the valve-stems moves the valve-stem in the opposite direction. The seaming-head D inside each of the receivers C is furnished with a cam-clamping chuck or disk (Z, having a countersink or shoulder (Z' to fit the countersink of the cam-head m and cooperate with the double-seaming roller (Z d" (Z (Z. Each of the double-seaming rollers is carried on an operating-lever cl, pivoted to lugs or cars (Z on the seaming-head D and operated by cams (i d" (1 cl on the vertically-reciprocating slides D with which each of the seaming-heads D is provided. The cams (Z d" (Z are differently located on the slide D, so as to successively operate the set of double-seaming rollersthat is to say, as the slide D carrying these cams, is depressed the first causes the first double-seaming roller (2* to engage the flange of the can-head and curl or fold the same partially around the seaming-flange on the can-body and then operates the next seaming-roller d, which serves to further fold the seaming-flanges downward and together and then operates the pair of finishing-rollers (Z which are alike and preferably should be operated simultaneously and serve to finish the seam and press the folds thereof tightly together. The can-clamping chuck or disk d has antifriction or ball bearing connections d d al with the seaminghead D, so that the chuck-disk (Z and the can may remain stationary or non-rotating, while the seaming-head D rotates around it.

he seaming-head D has a spring connection D with the cam-slide D which latter cam-slide is directly secured tothe rotating and reciprocating operating-shaft D of the seaming-head. This interposed spring D"between the seaming-head and cam-slide causes the seaming-head D or the clamping-disk (Z, carried thereby, to first clamp and press the cover m of the can X down upon the can after the air has been exhausted therefrom and from the receiver and to hold the cover thus sealed to the can while the vacuum in the receiver is being broken and the receiver opened and while the can is being withdrawn therefrom by the downward reciprocating movement of the can-seat 6, during which time the seaming-head D and its clamp-disk (Z move downward with the can-seat b and while the cam-slide D by its further downward movement, operates the seaming-rollers as required. The interposed spring D" permits IIO the necessary further downward movement of the cam-slide to effect the seaming operation.

The seaming-head is preferably provided with a can-stripper or ejector-disk d, having an operating stem (Z which extends up through the operating-shaft D of the seaming-head and through the guide-stud d, with which the clamp-disk (Z is provided. Springs (2, attached to the upper ends of the seaming-roller levers d" and connecting the same, serve to retract the seaming-rollers. The required up-and-down or reciprocating movement is communicated to the seaming-head shafts D as the carrier B rotates by a Sta-- tionary cam Di secured to the stationary shaft or post A of the frame and operating through connecting levers D having antifrictionrollers D to engage the cam and forks D connected to the shaft D by adjustable collars D D. The ejector-stem (Z on each of the seaming-heads is operated in one direction by a stationary cam D supported on the frame A, each of the stems (Z having a spring (Z to move the same in the opposite direction. The spring (Z surrounds the ejector-stem (8, and its lower end bears against the end of the seaming-head shaft D, and thus tends to hold the ejector in its retracted position, except when the ejector-stem is depressed by the stationary cam D The required rotatory movement is communicated to each of the seaming-heads D or its operating-shaft D as the carrier B rotates, preferably by means of a spur-gear D, one

on each of said shafts D, engaging a rotating spur-gear D, which is journaled on the frame of the machine and which is provided with a bevel gear face D, that meshes with the bevel-gear D on shaft D carrying a driving-pulley D The carrier B is provided with a shell or drum B to give proper support to the various operating-levers and parts carried thereby, and this carrier is rotated preferably continuously by a gear B thereon, which engages a worm B on a driving-shaft B. The cans are automatically fed or delivered onto the can-seats Z) of the carrier B, the'upper surface of which seats at this time are flush with the upper surface of the carrierplate B from the conveyer-belt K by a movable feeder H, having a series of can-pusher arms 71 which engage the cans one by one and move them along a curved guideway H onto the carrier B against the registering devices or pins 6 of the can-seats. The feeder H is preferably given a rotatory movement in 006peration with the continuotisly-rotating carrier B by means of operating-arms it on the feeder, which engage the pins or projections 7/ on the carrier B.

As the carrier B rotates the cans are automatieally discharged one by one therefrom by a can-discharging arm M, projecting in the path of the cans, the same operating in conjunction with a guide M to deliver the cans upon the can-discharging feeder or belt N, which travels upon a suitable pulley N. At the time the can is discharged from the canseat 6 by the discharging-arm M the verticallyreciprocating can-seat 7) is again flush with the carrier-plate B. The can-feed conveyer or belt K travels upon a pulley K and a plate H flush or on a level with the conveyer-belt K, and carrier B supports the cans as they are moved by the feeder H from the conveyer K onto the carrier B. A similar plate M flush with the discharge-conveyer N and carrier B, bridges the space between the carrier and the conveyer N. The can-conveyors N and K are continuously driven from any suitable series of power.

The operation is as follows: The cans X on the feed-conveyer K, having each its cover m loosely in place thereon, are continuously crowded against the guide H at the end of said conveyer, so that one of the cans is always in position to be engaged by one of the feeder-arms h as the feeder H rotates, and thus be carried by the feeder-arm onto the carrier B and against the registering pins or devices 6 of the can-seat b, which at this time is flush with the carrier-plate B, the seaminghead D being at this time in its lifted or raised position inside the receiver C. As the carrier B continues its rotation the verticallymovable can-seat 7) by its operating-cam A is reciprocated or moved upward against the lower end of the receiver C, thus closing the receiver and moving the can into the receiver, and then, the valve F in the exhaust-pipe is moved by its operating-cam F to open the communication between the receiver C and the exhaust device E through the intermediate communicating pipes or passages. The exhaust communication with the receiver remains open for a portion of the revolution of the carrier, thus exhausting the air from the receiver and from the can and its contents, the cover during this time remaining loosely in place on the can or vessel X. After the air has thus been exhausted from the can and its contents the seaming-head D, with its can-clamping disk (Z, is next forced down by its operating-cam D, thus seating the cover as firmly and evenly on the can X and compressing the packing a" between the seamingfianges c w of the can and cover and holding the same thus compressed until after the dou dle-seammg operation s completed. The controlling-valve F is next again moved by its operating-cam, thus breaking the vacuum and admitting air to the receiver, and then the vertical reciprocating can-seatl) and seaminghead D are together reciprocated or moved, downward, thus withdrawing the can from the receiver while holding the cover firmly clamped on the now vacuumized can.

the can has thus been withdrawn from the receiver the seaming-head shaft D is by its op- After 7 crating-cam D" given a further downward movement, thus still further moving the camslide 1), and thus compressing the interposed. spring D and sueessively operating the double-seaming rollers and forcing them into engagement with the seaming-flanges of the can and cover, and thereby double-seaming the cover on the can. the seaming-head D rotating continuously through its connecting-gearing. As the carrier B continues its rotation the vacuumized scaled and double-seamcd can is discharged from the carrier B by the candischarging arm M and delivered upon the discharge-conveyor N.

The operation thus described in respect to one can, one can-scat, one receiver, and one seaming-head simultaneously takes place for the others, so that a continuous stream or series of cans passes into, through, and off of the machine and this continuously without stop or interruption. By this means the cans or vessels may be vacuumized and their covers hermetically sealed and double-scamed thereon very rapidly and cheaply and also perfectly, as the can and the cover and the double-seaming rollers are open to inspection during the double-seaming operation, as the canseat, can, and seaming-head are withdrawn from within the receivers during this operation.

I claim- 1. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a horizontal traveling carrier having a plurality of vertical] y-reciprocatin g can-seats, of a plurality of receivers mounted on the carrier, and having open lower ends adapted to be closed by said can-seats and a plurality of seaming-heads, one inside each receiver, and mechanism for automatically reciprocating the can-seats as the carrier travels, said receivers being normally open and being closed and opened by the reciprocation of the canseats, substantially as specified.

2. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of verticallyreciprocating can-seats, of a plurality of receivers mounted on the carrier, and having open lower ends adapted to be closed by said can-seats and a plurality of seaming-heads, one inside each receiver, and a feeder for automatically delivering the cans upon the canseats of the carrier, substantially as specified.

3. In a machine for vacuumizing and seaming covers on cans or vessels, the combination With a carrier having a plurality of verticallyreciprocating can-seats, of a plurality of receivers mounted on the carrier, and having open lower ends adapted to be closed by said can-seats and a plurality of seaming-heads, one inside each receiver, and a feeder for automatically delivering the cans upon the canseats of the carrier, and a conveyer for delivering the cans to the feeder, substantially as specified.

4. Ina machine for vacuumizingand seam- .ing covers on cans or vessels, the combination with a carrier having a pluralityof verticallyreciprocating can-seats, of a plurality of receivers mounted on the carrier, and having open lower ends adapted to be closed by said can-seats and a plurality of seaming-heads, one inside each receiver, and a feeder for automatically delivering the cans upon the canseats of the carrier, and a conveyor for delivering the cans to the feeder, and a device for automatically discharging the ca'ns from the carrier, substantially as specified.

5. In a machine for vacuumizing and seaming covers on cans or vessels, the combination With a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier, having open lower ends adapted to be closed by said can-seats, and a plurality of double-seaming heads, one inside each receiver, substantially as specified.

6. In a machine for vacuumizing and seaming covers on cans or vessels, the combination With a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier, having open lower ends adapted to be closed by said can-seats, and a plurality of double-seaming rollers, one inside each receiver, and a feeder for automatically delivering the cans upon the carrier, and a device for automatically discharging the cans from the carrier, substantially as specified.

7. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier, a plurality of scaming-heads one inside each receiver, and mechanism for operating said parts, to first close the can-seat against the receiver, then exhaust the air from the receiver and 'the can therein, then force the seaming-head down on the can, then withdraw the seaming-head, can-seat and can from the receiver and then actuate the seaming-rollers of the seaming-head, substantially as specified.

8. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier, each having an open lower end,a plurality of double-seaming heads, one inside each receiver, and each having a set of double-seaming rollers and mechanism for operating said parts, to first close the canscat against the.receiver, then exhaust the air therefrom, then force the can-cover down on the can, then withdraw the seaming-head, can and can-seat from the receiver, and then actuate the double-seaming rollers of the seaminghead, substantially as specified.

9. The combination with a continuously-rotating carrier, having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clamping disks, a plurality of rotating seaming-heads having seaming-rollers, a plurality of receivers surrounding the seaming-heads, and means for automatically reciprocating the can-seats on the carrier as the carrier rotates, said receivers being normally open and being closed and opened by the reciprocation of the can-seats, substantially as specified.

10. The combination with arotating carrier, having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clamping disks, a plurality of rotating seamingheads having seaming-rollers, a plurality of cam-slides for operating the seaming-rollers, and a plurality of receivers surrounding the seaming-heads, substantially as specified.

11. The combination with a rotating carrier, having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clamping disks, a plurality of rotating seamingheads having seaming-rollers, a plurality of cam-slides for operating the seaming-rollers, a plurality of receivers surrounding the seaming-heads, and a feeder for automatically delivering the cans to the carrier, substantially as specified.

12. The combination with a rotating carrier, having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clam ping disks, a plurality of rotating seamingheads having seaming-rollers, a plurality of cam-slides for operating the seaming-rollers, a plurality of receivers surrounding the seaming-heads, a feeder for automatically delivering the cans to the carrier, and a device for automatically discharging the cans from the carrier.

13. The combination of a vertically-reciprocating can-seat with a receiver and a doubleseaming head inside the receiver, said doubleseaming head having a plurality of seamingrollers, operating-levers therefor, and a camslide for actuating the operating-levers of the seaming-rollers, substantially as specified.

1 1. The combination with a reciprocating, non-rotating can-seat, of a seaming-head having a ean-clasping disk and a plurality of seaming-rollers, a plurality of operating-levers therefor, and a cam-slide for actuating the operating-levers of the seaming-rollers and a receiver having an open lower end adapted to be closed by said reciprocating can-seat, substantially as specified.

15. The combination with a double seaminghead, having a plurality of seaming-rollers, and operating-levers therefor, pivoted to said head, and a cam-slide for actuating said opcrating-levers of the seaming-rollers, a receiver surrounding and inelosing said seaming-head, and having an open lower end and a reciprocating can-seat for closing the open lower end of the receiver and moving the can into the same, substantially as specified.

16. The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers having open lower ends closed by said reciprocating can-seats for consecutively and simultaneously exhausting the air from a plurality ofcans and a plurality of seaming-heads inside the receivers for consecutively and simultaneously seaming a plurality of cans, substantially as specified.

17 The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers having open lower ends closed by said reciprocating can-seats for consecutively and simultaneously exhausting the air from a plurality of cans and a plurality of seaming-heads inside the receivers for consecutively and simultaneously seaming a plurality of cans, and a feeder for automatically delivering the cans to the carrier, substantially as specified.

18. The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers having open lower ends closed by said rcciprocatingcan-seats for consecutively and simultaneously exhausting the air from a plurality of cans and aplurality of seaming-heads inside the receivers for consecutively and simultaneously seaming a plurality of cans, and a discharge device for automatically delivering the cans from the carrier, substantially as specified.

19. The combination with the horizontallymoving carrier having a vertically-reciprocating can-seat, adapted to close the lower end of the receiver, of a receiver mounted on the carrier and having an open lower end and a seaming mechanism inside the receiver, and mechanism for automatically reciprocating the can-seat on the carrier as the carrier moves, said receiver being normally open and being closed and opened by the reciprocation of the can-seat, substantially as specified.

20. The combination with a horizontallymoving carrier having a vertically-reciprocating can-seat, of a receiver having an open lower end, a roller seaming-head inside the receiver, having a can-clamping disk for seating the cover on the can and clamping the can and cover together, an exhaust mechanism, a valve for controlling the admission of air to the receiver, and mechanism for automatically reciprocating the can-seat on the carrier as the carrier moves, said receiver being normally open and being closed and opened by the reciprocation of the can -seat, substantially as specified.

21. The combination with a horizontallymoving carrier having a plurality of recipro: eating can-seats, of a plurality of open-ended receivers, a plurality of seaming-heads inside the receivers, furnished each with a can-clamping disk and with a plurality of successivelyoperating double-seaming rollers, and mechanism for automatically reciprocating the can-seats on the carrier as the carrier moves, said receivers being normally open and being ITO closed and opened by the reciprocation of the can-seats, substantially as specified.

22. The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of open-ended receivers and a plurality of seaming-heads inside the receivers, furnished each with a can-clamping disk and with a plurality of suecessively-operating doubleseaming rollers, an exhaust mechanism and a plurality of valves for controlling the exhaust and admission of air to the receivers, substantially as specified.

23. The combination with a rotating carrier having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clamping disks, a plurality of rotating seamingheads having seaming-rollers, a plurality of receivers surrounding the seaming-heads, and stationary cams for operating the reciprocating can-seats and seaming-heads as the carrier rotates, substantially as specified.

24. The combination with a rotating carrier having a plurality of reciprocating can-seats thereon, of a plurality of opposing can-clamping disks, a plurality of rotating seamingheads having seaming-rollers,a plurality of receivers surrounding the seaming-heads and exhaust mechanism, a plurality of valves for controlling the exhaust and admission of air to the receivers, and stationary cams for operating the reciprocating can-seats, seamingheads and valves as the carrier rotates, substantially as specified.

25. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier and having open lower ends, a plurality of seaming-heads, one inside each receiver and a stationary cam for operating the-reciprocating can-seats, substantially as specified.

26. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier and having open lower ends,

a plurality of seaming-heads, one inside each receiver, a stationary cam for operating the reciprocating can-seats, and a stationary cam for operating the seaming-heads, substantially as specified.

27. In a machine for vacuumizing and seaming covers on cans or vessels, the combination with a carrier having a plurality of reciprocating can-seats, of a plurality of receivers mounted on the carrier and having open lower ends, a plurality of-seaming-heads, one inside each receiver and a stationary cam for operating the reciprocating can-seats and a can-feeder, substantially as specified.

28. The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of open ended receivers, a plurality of seaming-heads inside the receivers, furnished each with a can-clamping disk, a plurality of successively-operating double-seaming rollers, a plurality of cam-slides, one for each seaming-head and a spring or yielding connection between each cam slide and its seaming-head, substantially as specified.

29. The combination with a carrier having a plurality of reciprocating can-seats, of a plurality of open-ended receivers, a plurality of seaming-heads inside the receivers, furnished each with a can-clamping disk, a plurality of successively-operating double-seaming rollers, a plurality of cam-slides, one for each seaming-head and a spring or yielding connection between each cam slide and its seaming-head, and a plurality of ejectors, one for each clampingdisk, substantially as specified.

30. The combination with a carrier having aplurality of reciprocating can-seats, of a plurality of open-endedreceivers, a plurality of seaming-heads inside the receivers, each having seaming-rollers and operating-levers therefor, and a cam-slide for actuating said levers, substantially as specilied.

EDWV IN NORTON.

\Vitnesses:

ALrnoNsE KLoH, IRENE ONEILL.