US3770104A - Gated carrier for hydrostatic cooker - Google Patents

Gated carrier for hydrostatic cooker Download PDF

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Publication number
US3770104A
US3770104A US00201394A US3770104DA US3770104A US 3770104 A US3770104 A US 3770104A US 00201394 A US00201394 A US 00201394A US 3770104D A US3770104D A US 3770104DA US 3770104 A US3770104 A US 3770104A
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links
conveyor
gates
pocket
loop
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US00201394A
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English (en)
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J Reimers
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FMC Corp
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FMC Corp
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/14—Cooking-vessels for use in hotels, restaurants, or canteens
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/001—Details of apparatus, e.g. pressure feed valves or for transport, or loading or unloading manipulation

Definitions

  • the carriers on the conveyor chain are in the form of pockets, mounted on one set of links which can be closed by gates mounted on adjacent links with abutments to prevent opening of the pockets in one direction of chain articulation and to accommodate opening of the pockets in the other direction of flexure for feed and discharge.
  • This invention relates to the cooking or sterilizing of articles in containers and more particularly to an improvement in the conveyor carrying chain ,assembly such as that used in hydrostatic cookers.
  • the present invention relates to the improvement in the conveyor or carrier chain structure of the type that runs continuously through the hydrostatic and steam legs of the type of container processing, cooking and sterilizing equipment known as a hydrostatic cooker.
  • containers are fed into and discharged from the carriers at a single, small diameter feed and discharge sprocket assembly, and yet the containers are securely held in place as they approach these sprockets; against buoyancy in the water legs of the cooker and against the force of gravity in certain lower loops of the carrier conveyor passing through the cooker.
  • a feature of the improved carrier of the present invention is that it can be utilized for the processing of containers such as cylindrical cans lying on their sides, as well as for processing the so called squat containers which are more stable when set on their bases instead of on their sides and which are relatively low in height.
  • the containers are readily fed and discharged from the conveyor while supported on their flat surfaces and yet are positively confined at the various critical" zones of the cooker. These critical zones are along the large lower loop section (which is usually a water cooled section) and wherein the cans tend to fall from the carriers by force of gravity; through the water legs including their lower loops therein wherein buoyancy tends to dislodge the cans from their carriers; and at the approach to the feed and discharge sprocket set.
  • the basic carrier chain of the present invention has a pitch one half that of a corresponding chain mounting conventional type carriers, such as that shown in the U.S. Pat. to Lee No. 3,286,619, Nov. 22, 1966.
  • Pocket members having a bottom wall and at least one side wall are mounted on spaced chain links with the bottom of the pocket members facing out at the feed and discharge sprocket loop and with the bottoms facing up at the upper sprocket loops and at the smaller radius lower loops in the water legs. This means that the pocket bottoms face down at the larger radius lower return loop of the carrier chain.
  • Closure gate means are provided for each pocket, in a manner mounted so that articulation of the links in one direction (to a sufficient degree) opens the gates and articulation in the other direction closes the gates.
  • abutments for holding the links against further articulation in the pocket closing direction are provided which, in effect, doubles the pitch of the chain.
  • the abutments act to lock up the chain, with the gates closed, at the portion of the conveyor which approaches the feed discharge sprocket assembly (when the pocket bottoms are up) as well as around the smaller radius lower loops at the bottom of the water legs, when the pocket bottoms are down. Closure in the latter zones prevents displacement of the cans due to buoyancy in the water.
  • the abutments accommodate full opening of the links around the feed and discharge sprockets and although they also accommodate partial gate opening around the relatively large radius lower loop (when the bottoms are up), the latter loop has a radius large enough so that the gate opening articulation at this zone is not sufficient to drop out the containers.
  • the pocket members are in the form of cups having flat, opposed side walls and a bottom, and the flat side walls do not have inturned lips, as in prior carriers. This facilitates feeding of squat cans into and out of the pockets.
  • one of the side walls of each pocket can be mounted on a link adjacent to that which mounts the basic pocket.
  • FIG. 1 is a schematic diagram showing the path of a container conveyor of the present invention through a typical hydrostatic cooker, although in the broader aspect ofthe invention, the carrier could be used in paths other than that of FIG. 1.
  • FIG. 2 is an enlarged partial diagram like that of FIG. 1 showing a conveyor embodying pockets employed in one form of the invention.
  • FIG. 3 is an enlarged perspective showing constructional details of the pocket and gate member mountmgs.
  • FIG. 4 is an enlarged partial section of a carrier passing through a small diameter water leg loop.
  • FIG. 5 is a plan of FIG. 4, water omitted.
  • FIG. 6 is an enlarged detail of the conveyor passing around the feed and discharge sprocket.
  • FIG. 7 is a section showing the track guide construction.
  • FIG. 8 is an enlarged view showing the conveyor passing through the lower, large diameter return cooling leg of the hydrostatic cooker.
  • FIG. 9 is a horizontal section, of a modified form of the invention wherein the gate member is formed of abutting half gates straddling a pocket member.
  • FIG. 10 is an enlarged fragmentary section showing mounting of the pocket and gate members.
  • FIG. 11 is a partial plan of the modified conveyor.
  • FIG. 12' is a detail showing the action of the modified form around the feed and discharge sprockets.
  • FIG. 13 is a view like FIG. 12 showing another modifled form of the invention. It resembles that of FIG. 12 but the half gates do not abut to provide the lock up action during flexing.
  • FIG. 14 is a partial plan of the carrier of FIG. 13 and FIG. 14A is an enlarged view of the carrier as passing around the large diameter bottom loop, cups upside down.
  • FIG. 15 is a view like FIG. 6 showing an embodiment of the invention wherein half gates are provided, one of which also forms one side wall of the pocket.
  • FIG. 16 is a partial plan of the carrier of FIG. 15.
  • FIG. 17 is a view like that of FIG. 6 of still another modified form of the invention having a single gate as in FIGS. 1 8, but modified to provide for a projecting lead in flange of a pocket side wall.
  • FIG. 17A is a view like FIG. l7 showing the container discharge action.
  • FIG. 18 is a partial plan view of the conveyor of FIG. 17. 1
  • FIG. I is a simplified diagram of a single conveyor hydrostatic cooker embodying the present invention.
  • Cookers of this type are generally known in the art and a typical example, but employing a double conveyor chain construction is shown in the U.S. Pat. to Lee No. 3,286,619, Nov. 22, 1966. Only the features essential to an understanding of the present invention are illustrated in the typical cooker of FIG. 1.
  • such cookers include a central combined steam and water leg 10, flanked by an entrance water leg 12 and an exit water leg 14. There is also a large diameter cooling leg 16 at the lower end of the installa- I tion.
  • a conveyor D has side chains trained feed and discharge sprockets 20, at which cooked containers are discharged and new containers are fed into the conveyor for processingQ
  • the conveyor D has a vertical reach leaving sprockets 20 and is trained around upper sprockets 22 driven by mechanism indicated at 24, the details of which are not critical to the present invention.
  • the conveyor then passes down through the water leg 12 and around a lower, small radius loop 26 and up into the steam leg 10.
  • the conveyor then passes around upper sprockets 28, down through the steam leg 10 and back around a second small diameter lower loop 26a.
  • the conveyor then passes up through the water leg 14 around upper sprockets 22a and forms a large diameter lower loop 30 in the lower cooling leg 16.
  • the carrier loop 30 has a much larger radius than that of the loops 26,2641. After leaving the lower cooling loop 30 the conveyor returns to the feed and discharge sprockets 20, previously mentioned.
  • FIGS. 2, 6 and'8 A partial diagram of a conveyor or carrier chain D embodying the present invention as it is trained through various parts of a hydrostatic cooker appears in FIGS. 2, 6 and'8 and the detailed construction thereof appears in FIGS. 3 5 and 7.
  • the pocket or cup members forming the carriers are mounted on the pin links of the conveyor side chains and a single gate member is mounted on the intervening roller links.
  • two conveyor chains indicated generally at 32 support the carriers, and the chain rollers are guided in tracks 33 at various zones in the path.
  • the side chains comprise paired outer and inner roller links 36,38 mounting pins 40 and rollers 42 (best seen in FIG. 5).
  • Connecting the pins 40 are paired outer and inner pin links 46,48 and in the embodiment being described, the pocket or body members, indicated generally at 50, are mounted on the inner pin links 48.
  • the pocket members 50 (FIG. 4) are in the form of U-shaped cups having flat sidewalls 52,54 joined by a bottom wall 56.
  • the sidewalls have outwardly turned lips 52a,54a.
  • the term flat refers to the inside surfaces of the pocket member sidewalls which are unobstructed so that containers can be readily slid in and out of the cups or pocket members 50 when the gates are opened.
  • the cups 50 are supported at their ends on their associated pin links 48 by means of bent up channel brackets indicated generally at 57, opposite flanges of which are bolted to the sidewalls 52,54 of the cups by means of bolts 58.
  • the bases of the channels 57 are bolted to the pin links, 48 by means of bolts 59 (FIGS. 3,5 and 8)
  • the cups 50 are mounted on adjacent pairs of pin links 48.
  • the cups 50 are closed by a single gate 60.
  • the ends of the gates 60 are mounted'on abutment arms 62 by means of flanges 63 and bolts 64 (FIGS. 3 5).
  • the abutment arms 62 are mounted on the inner roller links 38 by means of bolts 65 which pass through dependent fingets 66 of the gate arms as best seen in FIG. 3.
  • the gate arms 62 serve as stops or abutments to prevent articulation between the pin links 38 that mount the gates and the roller links 48 that mount the .cups.
  • This stop structure is provided by an offset flange 67 on the gate arm 62 (as best seen in FIG. 5) which offset flange provides an abutment surface 68, best seen in FIG. 4, than engages one edge of the associated roller link 48.
  • cup construction of the present invention is particularly usefui for handling squat cans C which are fed from their top or bottom faces instead of from their cylindrical sides, as in conventional cookers of this type.
  • cylindrical cans can be fed in from their sides in the usual manner.
  • FIG. 2 shows the action around one of the two lower water leg loops, namely the loop 26.
  • the cups 50 are bottom down, but due to the buoyant action of the water on the containers C within the cups, there is a tendency for containers to float out of the cups.
  • these loops represent inside bends and as mentioned before, the effect of articulation around inside bends is to cause the gates 60 to close their associated cups 50 and the abutment surfaces 68 on the gate arm 67 engage the associated edges of the pin links 48 that mount the cups. This locks up every other set of pin and roller links so that they articulate together.
  • dislcdgement of the containers is positively prevented around the small diameter loops 26,26a (FIG. I) that pass through water chambers.
  • the gates are closed along all of the vertical reaches of the conveyor so that the containers are trapped within their pockets.
  • the bottoms of the cups 50 are disposed downwardly when the conveyor passes around the upper sprockets 22 and this also applies to the passage around the sprockets 28 and 22a (FIG. 1).
  • the diameter of the loops around these upper sprockets is greater than the diameter of the feed discharge sprockets 20, but since the upper sprockets represent outside loops, articulation is permitted at every pin 40 and the gates 60 partially open. However, these loops are not subjected to the buoyant action of water and since the cups are bottom down, gravity maintains the containers C in their pockets.
  • the gates themselves are not fully open, as they are around the smaller diameter feed and discharge sprockets 20.
  • FIG. 8 shows the action of the conveyor D at loop 30 through the large diameter lower water leg 16.
  • the cups 50 are bottoms up and hence the buoyant action of the water does not tend to dislodge the containers through the cup openings.
  • the large loop 30 is an outside loop and hence articulation occurs at all chain link pin ends 40 tending to partially open the gates 60.
  • the diameter of the loop 30 is large enough so that the gates open only slightly, thus maintaining the containers C in the cups 50 against the force of gravity. 7
  • the cups can be made without projections that interfere with loading and unloading containers, and particularly squat containers loaded to rest on their bottoms or top surfaces, so that all the pockets can have flat internal surfaces that facilitate feed and discharge, yet there is no danger of losing control of the containers throughout the critical zones in the cooking path.
  • FIGS. 9 12 show a second embodiment of the in vention wherein the conveyor D2 differs from the con veyor D in several respects.
  • the side chains 132 of this form have alternate pin and roller links, instead of having all the cup members mounted on pin links, as in the previous form, the cup members are mounted alternately on pin and roller links with an additional link disposed between the cup mounting links.
  • a second difference is that two halt' gate members cooperate to close each cup'member and a third difference is that instead of having the lockup or abutment means coact between adjacent articulated links the half gate members abut one another, to limit the closing action of the gate for each cup.
  • a cup member is mounted on pin links 148, followed by a cup member 150a mounted on roller links 138, the latter being followed by another cup member 150 mounted on pin links 148.
  • the pin link cup members 150 are closed by a half gate 160 mounted on an upstream roller link 138b and by another half gate 161 mounted on a downstream roller link 138a.
  • the roller link members 150a are closed by a half gate 160a mounted on upstream pin links 148b and by another half gate 161a mounted on downstream pin links 148a.
  • roller links 138a and their half gate 161 pin links 148 and then cup 150, roller links 138b and then half gate 160 for the cup 150
  • pin links 148a and then half gate 161a pin links 148 mounting cup 150a
  • pin links 148b mounting the half gate 160a for the cup 150a.
  • FIG. 10 The construction for mounting the cups 150, on their associated links 148, are found in FIG. 10. Arms project from the mid-portion of the pin links 148 and have horizontal flanges 157. End stops 158 for the cups 150 have flanges 158a that are bolted to the bottom 156 of the cups by means of bolts 159, which then pass through the flanges 157. The cups (as do the cups 150) have flat sidewalls 152,154. A duplicate of this construction mounts the cups 150a on the roller links 138, as seen in FIG. 12.
  • FIGS. 9 12 The operation of the construction of FIGS. 9 12 is the same as that of the first embodiment previously described, except that in this construction, because of the extra intervening link, the cups 150,150a can be made deeper without mutual interference around the feed and discharge sprockets 20a. Also, the latter sprocket is made of somewhat larger diameter than the first embodiment and since the gates are half gates they will open fully for feed and discharge, as shown in FIG. 12, even though the sprockets 20a are larger.
  • the retaining action of the gates on the containers at the various critical portions of the path of the conveyor D2 around the hydrostatic cooker are the same as that previously described in connection with the first embodiment of the invention.
  • FIGS. 13,14 and 14a A conveyor D3, representing a third embodiment of the invention, is shown in FIGS. 13,14 and 14a.
  • This embodiment resembles the first embodiment in that the cups 250 are mounted on alternate links with a single link inbetween.
  • the third embodiment the third embodiment
  • the third embodiment resembles the second, in that the gates 260 are half gates, but the gates themselves differ in that each gate half closes one of the cups and partially closes an adjacent cup. In the third embodiment the gates do not abut, as in the second.
  • stop arms 267 engage adjacent links (similar to the first embodiment) to limit the closing motion of the gates.
  • the stop arms are on the pin links 248 instead of on the roller links 38, as on the first embodiment.
  • the cups 250 are mounted on the roller links 238 (as mentioned) by means of extensions 255 of those links, which are flanged over at 257 (see FIG. 14A) and which mount the cups 250 as well as end plates 258 for the cups by means of bolts 259 (see the middle of FIG. 14).
  • the cup mounting is similar to that of the second embodiment of FIGS. 9 l2.
  • the dual half-gates 260 of the third embodiment are mounted on the pin links 248 by means of flanges 270 projecting from ears on the pin links, and bolts 271.
  • FIG. 14A shows how a range of sizes of squat cans C are prevented from falling out of the conveyor when the gates are closed around the large bottom loop 30.
  • FIG. 13 shows how the gates, when fully open, completely clear the outside walls 252,254 of the cups 250 for feeding and discharge of the containers C.
  • FIGS. 15 and 16 show a conveyor D4 which resembles that of the third embodiment conveyor D3 shown in FIGS. 13 to 14A, except that each gate member also forms one sidewall of the pocket members for the containers.
  • the partial cups 350 have one sidewall 354 and a bottom wall 356.
  • the partial cups are mounted on the roller links 338.
  • the other sidewall for the partial cup 350 is formed by cooperation of a radial flange 352 that mounts the dual half gates 360 on cars 362 projecting from the pin links 348.
  • the partial cups 350 are mounted on link extensions 355 having flanges 357, along with end plates 358 by means of bolts 359, in a construction very similar to that of the conveyor D3 in FIGS. 13 to 14A.
  • the fourth embodiment is also useful for conventional processing of cylindrical containers C, which are fed and discharged on their sides.
  • the gate members have oppositely projecting flanges 360a,360b that cooperate to close the cups and further, due to the fact that each gate member embodies one sidewall 352 for the cups, the relative size of the openings as the conveyor D4 passes around the feed and discharge sprockets 200 is somewhat greater than that of the previous embodiments.
  • this construction will incorporate a range of can sizes mounted on their sides.
  • FIGS. 17 18 show a conveyor D5 representing a fifth embodiment of the invention.
  • This embodiment closely resembles the first embodiment in FIGS.'I 8 in that a single gate 460 is employed.
  • the cup members 450 are mounted on pin links 448 and the gates 460 are mounted on the roller links 438.
  • the cup members 450 are mounted on bent up channel brackets 457 that are bolted to the pin links 448 in a construction that is substantially like that of the first embodiment described in connection with FIG. 5.
  • the brackets 457 have terminal flanges 458 (FIG. 18) that serve as end stops for containers in the cups.
  • the gates 460 are bolted to ears 462 projecting from the roller links 438 and in this form, the gates do not completely close the cups although they do cover the open ends of the cups sufficiently to prevent squat cans C from sliding out at critical zones around the processing conveyor.
  • the downstream pocket sidewall 452 at the loading and discharge positions is longer than the upstream sidewall 454, which construction, when taken in conjunction with the widely open gates 460 facilitate the loading and discharge operations.
  • the loading operation appears in FIG. 17 and the discharge operation appears in 17A, it being noted by' comparison of these figures that the gates are not open simultaneously for loading and discharge, as in some of the previous embodiments.
  • Stop fingers 467 like those of other embodiments,
  • said container carrier members each comprises a container pocket member, each pocket member comprising at least one substantially flat sidewall and a single bottom wall wide enough to completely support a container, means mounting the ends of said pocket members on spaced pocket member mounting chain links, said latter links being connected by intermediate chain links, all of said pocket members being mounted on said pocket member mounting chain links; the bottoms of said pocket members facing out at said feed and discharge loop, said bottoms facing up at said upper sprocket and smaller radius lower loops, said bottoms facing down at said larger radius lower loop; closure gate means for each pocket member, means mounting said gate means on said intermediate links between said pocket member mounting links so that articulation of said links in one direction opens the gates and
  • pocket members each comprises a generally U-shaped cup having substantially flat sidewalls and a bottom wall.
  • closure gate means for each cup member comprises oppositely projecting half-gates mounted on the links at each side of those mounting the cup members.
  • said abutment means comprises stop arms mounted on one of the links for engagement with the adjacent link.
  • said container carrier member each comprises a generally U- shaped cup member having substantially flat sidewalls and a bottom wall, means mounting the ends of said cup members on spaced chain links; the bottoms of said cup members facing out at said feed and discharge loop, said bottoms facing up at said upper sprocket and smaller radius loops, said bottoms facing down at said larger radius lower loop; closure gate means for each cup member, means mounting said gate means on links between said cup member mounting links so that articulation of said links in one direction opens the gates and articulation in the other direction closes the gates, and abutment means for holding these links against further articulation in the cup closing direction after the gates have closed their cups, as at the bend

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
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  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chain Conveyers (AREA)
US00201394A 1971-11-23 1971-11-23 Gated carrier for hydrostatic cooker Expired - Lifetime US3770104A (en)

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US20139471A 1971-11-23 1971-11-23

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BE (1) BE790333A (cg-RX-API-DMAC10.html)
FR (1) FR2160818A1 (cg-RX-API-DMAC10.html)
NL (1) NL7214195A (cg-RX-API-DMAC10.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042103A (en) * 1975-06-19 1977-08-16 Stork Amsterdam B.V. Installation for the treatment of container-packed commodities
US4117921A (en) * 1976-02-10 1978-10-03 Yamato Scale Company, Ltd. Tray loading device in continuous conveying and processing system
US6343688B1 (en) * 1997-08-18 2002-02-05 Mckinlay Bruce Archibald Conveyor and escalator for transporting eggs and the like
WO2009136333A1 (en) 2008-05-07 2009-11-12 Koninklijke Philips Electronics, N.V. Exhaust assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490077A1 (fr) * 1980-09-16 1982-03-19 O Proizv Tekhn Dispositif pour le traitement thermique de produits alimentaires

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727271A (en) * 1902-05-26 1903-05-05 C C Gates Vegetable-blanching machine.
US1213265A (en) * 1915-05-22 1917-01-23 James Rowe Feed attachment for automatic book-trimming machines.
US1652277A (en) * 1924-06-30 1927-12-13 Barry Wehmiller Machinery Co Traveling conveyer
US3347351A (en) * 1964-06-03 1967-10-17 Internat Machinery Corp Hydrostatic cooker bars
US3394793A (en) * 1967-02-10 1968-07-30 Fmc Corp Hydrostatic cooker conveyor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727271A (en) * 1902-05-26 1903-05-05 C C Gates Vegetable-blanching machine.
US1213265A (en) * 1915-05-22 1917-01-23 James Rowe Feed attachment for automatic book-trimming machines.
US1652277A (en) * 1924-06-30 1927-12-13 Barry Wehmiller Machinery Co Traveling conveyer
US3347351A (en) * 1964-06-03 1967-10-17 Internat Machinery Corp Hydrostatic cooker bars
US3394793A (en) * 1967-02-10 1968-07-30 Fmc Corp Hydrostatic cooker conveyor

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042103A (en) * 1975-06-19 1977-08-16 Stork Amsterdam B.V. Installation for the treatment of container-packed commodities
US4117921A (en) * 1976-02-10 1978-10-03 Yamato Scale Company, Ltd. Tray loading device in continuous conveying and processing system
US6343688B1 (en) * 1997-08-18 2002-02-05 Mckinlay Bruce Archibald Conveyor and escalator for transporting eggs and the like
WO2009136333A1 (en) 2008-05-07 2009-11-12 Koninklijke Philips Electronics, N.V. Exhaust assembly
US20110056495A1 (en) * 2008-05-07 2011-03-10 Koninklijke Philips Electronics, N.V. Exhaust assembly
US8573208B2 (en) 2008-05-07 2013-11-05 Koninklijke Philips N.V. Exhaust assembly

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FR2160818A1 (cg-RX-API-DMAC10.html) 1973-07-06
NL7214195A (cg-RX-API-DMAC10.html) 1973-05-25
BE790333A (fr) 1973-02-15

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