US1983253A - Can vacuumizing and closing machine - Google Patents

Can vacuumizing and closing machine Download PDF

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Publication number
US1983253A
US1983253A US508514A US50851431A US1983253A US 1983253 A US1983253 A US 1983253A US 508514 A US508514 A US 508514A US 50851431 A US50851431 A US 50851431A US 1983253 A US1983253 A US 1983253A
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United States
Prior art keywords
valve
chamber
housing
machine
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US508514A
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English (en)
Inventor
Troyer Nelson
Paul E Pearson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Can Co Inc
Original Assignee
Continental Can Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
Priority to US508514A priority Critical patent/US1983253A/en
Priority to FR716570D priority patent/FR716570A/fr
Priority to DEC44824D priority patent/DE555520C/de
Priority to GB16742/31A priority patent/GB365006A/en
Application granted granted Critical
Publication of US1983253A publication Critical patent/US1983253A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/30—Folding the circumferential seam
    • B21D51/32—Folding the circumferential seam by rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B23K1/001—Sealing small holes in metal containers, e.g. tins

Definitions

  • valve the cans are delivered into the-chamber tor vacuumizing and sealing and also'from the chamber after they are closed.
  • a can sealing and vacuumizing machine 40 which embodies all of the desirable and advantageous features of the machine as previously constructed, while at the same time, certain features of construction are so arranged as to permit of ready access to all of the valve mechanism and to the seamer mechanism adjacent thereto; this being accomplished by constructing the valve housing as a part independent or the vacuumizing chamber, and by supporting it swlngingly or hingedly, so that when occasion arises, it may be released from its normal position closed against the chamber and swung outwardly and away from a the chamber to thereby open them apart and permit direct access both to the valvernechanism and to the mechanisms contained within the vacuu'mizing chamber adjacent to the valve.
  • Another object in the provision of means in connection with the driving shaft for the valve and its associated devices, and operable incident to any abnormal working strain being placed on the valve mechae of the present invention resides o5 nism or on its associated parts by reason oi isms,
  • Another object of this invention is to provide.75
  • Still another object o! the invention resides for draining the vacuumizing chamber of water therein Iromthe cans by reason of the latter entering the machine directly from a washer.
  • Fig. 2 is a horizontal section of the machine taken substantially on the line 2-2 in Figure 3; the valve being closed, but showing. in dotted. lines, its position when opened away from the vacuumizing chamber.
  • Fig. 3 is a vertical section taken substantially ontheline3-3in Figure2; shown in open position.- u
  • Figsisaplanviewot-thegeartrainand mechanism by means of which the various parts or the machine are opera Fig. 5 is a sectional detail through the can conveyer mechanism taken on the line 5-5 in Figure 4. f
  • Fig.6 is a cross sectional view of a portion or the machine illustrating the means for operating the intermittent turret for feeding cans to the seamer heads and the means for actuating the pads for lifting the cans to seaming position relative to the seamer heads.
  • Fig. '1 is a vertical section length wise of the main drive shaft of the machine, taken on the line '7--7 in Figure 3.
  • Fig. 8 is an enlarged sectional detail of the valve drive shaft with which is associated the safety clutch and power cut-ofi switch.
  • Fig. 9 is across section taken on the line 9--9 in Figure 8 showing the position of the switch.
  • Fig. 10 is a front view of the switch housing; its cover plate being removed for better illustration.
  • Fig. 12 is a wiring diagram and the various devices associated with the safety clutch mechanism for automatically controlling the stopping of the machine.
  • a can closing machine that is designed especially for seaming the covers, or top ends, onto cans which have been filled under normal atmospheric conditions, but which are to be closed in abnormal atmospheric conditions, such as under vacuum.
  • the cans are extracted upon entering the vacuumizing chamber, by the arms 10 of an extractor turret 10 which operates to advance the cans successively into the pockets 11 of an intermittently advanced turret 12. This delivers the cans successively and in proper timing to the seanier heads 3 and 4 of the seamer which operates to double seam the covers to'the can bodies.
  • the turret 12 by reason or its intermittent advancement, delivers the cans after the covers have been seamed thereon, against a stationary guide 13 (see Fig. 2) whereby they are directed from the turret again into the pockets of. the valve 9, which carries them to the outside of the machine whereupon they are extracted from the pockets by the action of the. arms 14?- of a revolving extractor turret 14 which delivers them into a guideway 15 with which a conveyer belt or device of any suitable nature, as at 16, may be associated to carry them from the machine.
  • the vacuumizing chamber which contains the double seamer 2 is enclosed by an airtight housing 20, which, as shown best in Figure 2, is provided with suitable openings, as at 2 22 and 23 in its various side walls through which ready access for adjustment, repairs, or replacement may be had to the mechanism contained within the chamber.
  • Each of these openings is fitted with an outwardly opening door, and the doors are adapted to close in an airtight fit.
  • the housing 20 forming the vacuumizing chamber and which encloses the seamer mechanism proper is mounted upon a supporting housing 25, which as shown in Figure 3, contains the principal transmission mechanism whereby the various parts of the machine are driven.
  • This latter housing also is airtight and is provided at one side with an opening 26 to give easy access to the mechanism therein.
  • This opening has an outwardly swinging door 27 fitted thereto.
  • the housing 25, in turn, is supported on a flat base 23 which extends to one side beneath the valve mechanism as a support for the valve hinging shaft and driving gears presently described.
  • the main drive shaft 30 of the machine extends transversely and horizontally through the base housing 25 as best illustrated in Figure 'l. and it is rotatably supported in anti-friction bearings 31 and is suitably packed to prevent leakage of air at the points where it passes through the housing walls.
  • the shaft is equipped with a driving pulley wheel 33 which is adapted to be operatively connected or released from the shaft by the manipulation of a clutch mechanism associated therewith and designated at 34.
  • a brake cone 35 Slidably keyed on the other end of the shaft is a brake cone 35 adapted to be tightened against a correspondingly tapered inner surface of a brake drum 36 bolted or otherwise fixed to the outside of the chamberwall.
  • a shift rod 37 extends centrally through the shaft 30 and at one end this has a cone 38 fixed thereon to co operate with levers of the clutch 34 to set or release it and at the other end has a nut connecting it with the brake cone 35.
  • a hand control lever 29 is provided for mar.- ually setting or releasing the clutch and brake. This is fixed on the end of a cross shaft 42 rotatably supported from the housing 20 by brackets 43-13. Lever arms 44-44 are keyed on the shaft 42 and extend downwardly along opposite sides of the hub 35 of the clutch cone which is circumferentially grooved, as at 45, to receive the shifting pins 46 that are mounted in the ends of said arms 44.
  • This arrangement of parts provides that by pushing the hand lever 39 inwardly rod 3'7 will be shifted outwardly to set the clutch and release the brake, and by pulling it, the clutch will be released and the brake set.
  • a gear wheel 50 Fixed to the main driving shaft 30 of the machine, as shown in Figure 7, is a gear wheel 50 that meshes with and drives a gear 51 that is keyed on a shaft 52 supported parallel with and below the shaft 30 in bearings 53, 54 and 54; the bearings 54-54 being formed on the top of a gear housing 55 that is fixed to the base 28 of the machine.
  • the shaft is formed with a worm gear 56 which meshes with a gear 5'7 disposed within the housing 55 and keyed to the end of a supporting shaft58, which extends forwardly from the housing 25 as best shown in Figure 8. to form a driving element for the valve mechanism, as will presently be described.
  • This shaft 58 extends through a packed opening 60 in the housing wall and is supported at its outer end in a bearing 61 that is fixed to the base 28.
  • valve 9 whereby the cans are delivered into and from the vacuumizing chamber of the machine, and which normally seals the can inlet and outlet passage to the chamber, is contained '5 rotatably within a valve housing 65.
  • This housing is bolted, or otherwise fixed upon a base 66 which supports a post or spindle 67 on which the valve rotates within its housing.
  • the valve housing 65 and the base housing 66 are provided at one side with laterally extending portions 65 and 66 respectively, formed with vertically alined bearings 6868 adapted to be disposed in alinement between journal bearings 69-69 fixed to the vacuum chamber housing, and also in alinement with a bearing socket 69 formed in the base 28.
  • alined bearings receive therethrough a vertical shaft 70 which servesas a hinge pin or pivot for supporting the valve housing and its base, and about which these parts may be swung into and from closed relation with respect to the housing of the vacuumizing chamber.
  • This movement of the valve is best illustrated in Figure 2 wherein it is shown in closed position in 25- full lines',and in open position in dotted lines,
  • feed conveyer and turrets are carried with the valve housing.
  • the housing 20 of the vacuumizing chamber is formed at one side with an inwardly rounded wall seat 71 that is provided with an opening '72 of considerable extent, and that the valve housing 65 is correspondingly rounded outfit snugly against the seat 71 and has an opening 74 .
  • the valve 9 is rotatably supported within its housing by the vertical post or spindle 67 which is revolubly mounted at its lower end'in a guide.
  • valve housing base 81 formed in the valve housing base and at its upper end, is supported by anti-friction bearings 82 and 83 disposed, respectively, below and above the valve; the bearings 82 being supported by the valve housing base 66 and the upper bearing 83 being contained within a downwardly facing socket formed as a part of the valve housing cover 65
  • the valve 9 is keyed to the post for rotation thereby, and the post, in
  • gear wheel 85' 7 is adapted'to be driven by a gear wheel 85' 7 that is keyed to its lower en
  • the gear 85 is connected to the valve driving shaft 58 and safety clutch through the medium of a gear train including base ,66. tegral ,with the upper end of rotatable about the lower end shaft '10. on the lower end of this sleeve 89 is keyed a beveled gear 90 meshing with a bevel gear 91 on a sleeve 92 revoluble upon the shaft 58 within thesupporting bearing 61, as shown best in Figures 3 and *8.
  • the safety clutch mechanism as shown best in Figure 8 comprises a disk 95 formed on one end of a sleeve 96 that is splined on shaft 58 and seatingat one end against a shoulder 97 on the shaft.
  • This disk 95 is closely adjacent a similar disk 98 in opposed relation thereto and formed on the end ofsleeve 92, and itis provided with a plurality of holes 99 in which steel balls 100 are project from the face of the disk into holes 101 in the disk 98; these latter holes being of lesser diameter than the balls so that the extent to which theballs may 'enter' them is limited.
  • a ball retaining disk or plate 102 This is held yieldingly in place by a plurality of coiled springs 103 that have ends seated in sockets 104 in the plate 102 and in sockets 105 of a similar plate 106 mounted on the outer end of sleeve 96 and held in proper adjustment by a lock nut 107 threaded onto the sleeve. Since the sleeve 96 is splined on shaft 58, it is driven thereby, and through the disk portion 95 of the sleeve and the balls 100 seated therein, it affords a driving connection with the disk '98 and sleeve 92.
  • 110 designates an air cylinder that is fixedly mounted on hous'ng and in which a piston 111 is fitted.
  • This piston is fixed to the upper end of a rod 40 connected pivotally at its lower end to an arm 39b which is fixed rigidly to or'formed inwhich is operatively connected by a'rod 117" to ⁇ - the valve plug 118to provide for shifting the plug to open or close the valve and thereby admit or cut off vacuum from pipe 113 .to the cylinderllO.
  • This switch as shown in Figures 9 and 10, is mounted within a housing 130 and itincludes a shaft 131 that is rotatablyjmountedto extend through the hous'ing'wall and which, at
  • a lever 132 fixed thereto carrying a stop 133 resting against the outer face of plate 10-2.
  • a switch lev'er arm 135 On the outer end of shaft 131 within the housing is a switch lev'er arm 135 (see Figure 10) having a contact 136at its end which normally engages a stationary contact 137 but which will be disengaged therefrom by rotative movement of shaft-131 under a disrupting action of the safety clutch.
  • the circuit wire 120 is connected in switch box 124 to the contact 129.
  • Switch lever 128 is connected by a circuit wire 140 with one side'of the solenoid 115 and the other side of the solenoid is connected by circuit wire 141 with the fixed contact 137 of the switch in housing 130.
  • the contact 136 of this latter switch is connected by a wire 142 with the circuit wire 121.
  • valve housing 65 may be cleared of the jam and when this is done, parts of the safety clutch mechanism will resume their normal driving relationship.
  • the switch mechanism 125 will operate by reason of expansion of sylphon' 126 to disengage the contact arm 128 from the contact 129' thereby opening the electric circuit to the solenoid to effect the stopping of the machine in the same manner as it was effected by the switch associated with the disrupting mechanism.
  • the switch mechanism 125 is not described in detail since in itself it. forms no part of this invention, howinfiuence of vacuum ever, itwill be stated that it embodies an adjustable means whereby it may be set to operate at any predetermined vacuum.
  • the transfer turret 10 is mounted on the upper end of a vertical shaft which is driven by a gear 151 at its lower end operating in mesh with the driving gear 85 fixed on the lower end of the valve spindle.
  • the extractor turret 14 is mounted on the upper end of a vertical shaft 153 rotatably supported in the valve housing and which at its lower end has a gear wheel 155 keyed thereon which meshes with the gear 85.
  • the driving gears forthese two turrets are properly proportioned with respect'to the gear 85 so that the turret arms will enter the valve pockets atthe proper times for extracting the cans therefrom.
  • the feed conveyer mechanism designated at 6, which includes the turret 7, is driven by a gear train connectionwiththe idler gear 86.
  • the turret '7 is fixed to the upper end of a vertical shaft 158 which, at its lower end, has a gear wheel 159 fixed thereon,--meshing with an idler gear 160, on a shaft 161 providing connection with the idler 86.
  • a conveyer frame 165 is supported from the valve housing 66 and this mounts parallel conveyer chains 166-166 which operate about sprockets 167-468 in the frame to deliver the cans 5 to the turret 7. These ,cans are-timed in their delivery to the turret by a' timing screw 170 parallel with the conveyer.
  • the driving means for the conveyer chains and for the timing screw is best shown in Figure 5,
  • the turret 12 is supported by a vertical post 207 revoluble in bearings 208 in the top wall of the housing 25, as shown in Figure 3 and at itslower end, this post has a wheel 209 fixed thereon and overlying the cam and provided on its underside with six concentrically arranged rollers 210 corresponding to the six pockets of the turret 12.
  • These rollers are adapted to be receivedsuccessively in one end of the cam groove 206 which is so shaped that. as a roller 210 leaves the groove at one side of the cam, the next roller is caused to enter at the opposite side.
  • each turn of the cam .causes the turret to r be advanced, after a. certain interval of rest, through one-sixth of a turn.
  • the cams 5 are advanced successively from the valve 9 by the turret 10 and are placed in successive pockets 11 of the turret 12 during periods of rest of the latter turret.
  • the can elevating pads 212-212 (see Figure 6) disposed within openings 213 in a platform, or plate 21d upon which the cans are supported and pushed along by the turret 12.
  • a valve seat 258 is formed near the ports and a valve head 258' is formed near the ports and a valve head 258' is fitted thereto; This head is mounted on the end of a stem 259 which extends to the outside of the bearing and is there provided with a handle 260.
  • a coiled spring 261 is interposed about the stem 259 and bears against the head 258' and a plug 263 to hold the valve head seated and thus normally prevent communication between the vacuum chamber and the reservoir through channel 256.
  • the spring 261 in this instance, bears inwardly on the valve 258-to hold it closed and vacuum in the chamber holds the valve 254 seated.
  • the operator pulls outwardly on the handle 260. This first compresses the spring 261 and unseats the valve 258 allowing the vacuum in the seaming chamber and in the reservoir to be equalized through the channel 256 and its lateral ports. A further outward movement of the handle then unseats the valve 254 so that the water in the seamer may drain freely into the basin. After the seamer housing has thus been drained, the handle is pushed inwardly and the valves are again seated. The reservoir may then be drained by opening a drain valve 270 provided in its side wall, as shown best in Figure 2.
  • a chamber a can sealing machine in the chamber, a can delivery valve associated with the chamber, a main drive shaft, driving connections for the sealing machine and valve operatively connected with the main drive shaft, a clutch included in the driving. connection for the valve operable under abnormal strain to release the connection, a
  • driving clutch for the main shaft and means operable incident to a releasing action of the first mentioned clutch to effect a release of the driving clutch.
  • a chamber a can sealing machine in the chamber, a can delivery valve associated with the chamber, a main drive shaft, driving connections for the sealing machine and a valve operatively connected with the main drive shaft, a clutch included in the driving connection for the valve operable under abnormal strain to release the connection, a driving clutch for the main shaft, means operable incident to a releasing-action of the first mentioned clutch'tc efi'ect a release of the the sealing machine incident to release of the driving clutch.
  • a chamber a can sealing machine in the chamber, a can delivery valve associated with the chamber, a main drive shaft, driving connections for the sealing machine and a valve operatively connected with the main drive shaft, a clutch included in the driving connection for the valve operable under abnormal strain to release the connection, a driving clutch for the main shaft, means operable incident to a releasing action of the first mentioned clutch to effect a release of the driving clutch, and adapted to be released incident to resetting movement of the driving clutch.
  • a can sealing machine a can feeding valve, a main drive shaft, a driving clutch for said shaft, a driving connection from the main shaft to the sealing machine, a driving connection from the main shaft to the alve including a clutch yieldable under abnormal working strain to release the driving connection, a source of vacuum, a cylinder connected therewith, a piston in said cylinder arranged for movement incident to an application of vacuum to the cylinder, means operable incident to yielding of the clutch in the valve driving connection to effect an application of vacuum to the cylinder, and means operable by the pistonincident to its movement to release the driving clutch of the main shaft.
  • a vacuum chamber In a machine of the character described, a vacuum chamber, a can sealing machine within the chamber, a can delivery valve associated with the chamber, a main drive shaft, a driving clutch for said shaft, a driving connection from the main shaft to the sealing machine, a driving connection from the main shaft to the can feed valve; said last connection including a clutch that is yieldable under abnormal working strain to release the driving connection, a source of vacuum for the chamber, a cylinder having connection with the said source of vacuum, a control valve in the connection, a solenoid operatively connected with the valve, a normally closed circuit for the solenoid, a piston in the cylinder adapted movable by application of vacuum to the cylinder, a normally closed switch in the electric circuit adapted to be opened by yielding of the clutch in the valve driving connection to thereby deenergize the solenoid and permit opening of the control valve for application of vacuum -to the cylinder, and means operable incident to movement of the piston following an application of vacuum to the cylinder to release the driving clutch of the main shaft
  • a construction as in claim 6 including a second normally closed switch in the circuit and means operable under influence of vacuum in the chamber for opening it to deenergize the solenoid to effect application of vacuum to the cylinder and disconnection of the driving clutch.
  • a vacuum chamber a seaming machine within the chamber, means for delivering cans into the chamber for seaming, a main drive shaft, a driving clutch for the shaft, clutch releasing means, a source of vacuum for the chamber, a cylinder having a valve connection with the said source of vacuum, a piston in the cylinder “operatively connected for releasing the driving clutch, a solenoid operatively connected with the valve, a normally closed electric circuit for the solenoid whereby the latter is energized to retain the valve of the cylinder in closed position, and a normally closed switch in the circuit and means operable under the influence of vacuum within the chamber for opening the switch to deenergize the solenoid to effect application of vacuum to the cylinder and a resultant releasing of the driving clutch.
  • a device as in claim 8 including means whereby the driving clutch may be manually reset.
  • a vacuum chamber a closed reservoir connected therewith through a drainage opening in the chamber; said reservoir having a valved drainage outlet, a valve fitted to the drainage opening, a stem for said valve and having a channel therein adapted to provide communication between said vacuum chamber and reservoir, a valve normally closing said channel, a stem for the second valve extending to theoutside of the reservoir initially movable to unseat the second valve to open the channel for equalizing pressures in the chamber and reservoir, and movable farther to unseat the first valve for draining the chamber into the reservoir.
  • a can vacuumizing and closing machine including in combination, a main housing having a vacuumizing chamber, said housing having an opening at one side thereof, a can seaming mechanism in said chamber, a valve housing for closing the opening in the main housing leading to the vacuum chamber, a support for said valve housing permitting movement thereof to open position away from'the main housing, said valve housing having valve seats, and a valve located in said valve housing and contacting with said valve seats, said valve having pockets for delivering cans to and from said chamber, driving means for the seaming mechanism, and driving means for the valve connected with the driving means for the seaming mechanism, and maintaining an operative connection therewith for both the open and closed positions of the valve housing.
  • a can vacuumizing and closing machine including in combination, a main housing having a vacuum chamber and an opening in said housing leading to said chamber, a can seaming mechanism in said chamber, a valve housing having an airtight joint connection with said housing about said opening for closing the same, a hinge shaft supporting the valve housing from said .mainhousing and about which shaft said valve housing may swing from closed to open positions away from the main housing, a valve in said valve housing for delivering cans into and from the chamber through said opening, said valve housing having a seat with which said valve contacts, means for driving the seaming I mechanism, means for driving the valve connected with the driving means of the seaming mechanism, and a valve connected with the driving means of the seaming mechanism by wheel coaxial of the hinge shaft and through which gear driving connection is maintained for all positions of adjustment of the valve houss.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vacuum Packaging (AREA)
US508514A 1931-01-13 1931-01-13 Can vacuumizing and closing machine Expired - Lifetime US1983253A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US508514A US1983253A (en) 1931-01-13 1931-01-13 Can vacuumizing and closing machine
FR716570D FR716570A (fr) 1931-01-13 1931-05-05 Machine à fermer des boîtes métalliques dans le vide
DEC44824D DE555520C (de) 1931-01-13 1931-05-16 Maschine zum Verschliessen von Behaeltern
GB16742/31A GB365006A (en) 1931-01-13 1931-06-09 Improvements in or relating to can sealing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US508514A US1983253A (en) 1931-01-13 1931-01-13 Can vacuumizing and closing machine

Publications (1)

Publication Number Publication Date
US1983253A true US1983253A (en) 1934-12-04

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Application Number Title Priority Date Filing Date
US508514A Expired - Lifetime US1983253A (en) 1931-01-13 1931-01-13 Can vacuumizing and closing machine

Country Status (4)

Country Link
US (1) US1983253A (de)
DE (1) DE555520C (de)
FR (1) FR716570A (de)
GB (1) GB365006A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579925A (en) * 1946-03-22 1951-12-25 Continental Can Co Temperature control for feeding cans

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492287A1 (fr) * 1980-10-17 1982-04-23 Marchadour Jean Charles Machine a sertir sous atmosphere controlee

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2579925A (en) * 1946-03-22 1951-12-25 Continental Can Co Temperature control for feeding cans

Also Published As

Publication number Publication date
FR716570A (fr) 1931-12-23
DE555520C (de) 1932-07-28
GB365006A (en) 1932-01-14

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