I Oct. 15, 1946. _ o E, M, BORG v " 2 2,409,341 CENTRIFYUGAL EXTRACTOR Filed June 8, 1943 _ 4 Sheets-Sheet l ' Q i §§ O r INVENTOR Eowmeo M. Boxes BY by]: (21W ATTORNEY Get. 15, 1946. i E, M, BORG ' 2,409,341 CENTRIFUGAL EXTRACTOR ‘g l / L I I1l l l Q II v ' BY ATTORN EY 2,409,341 Patented Oct. 15, 1946 UNITED STATES PATENT OFFICE 2,409,341 CENTRIFUGAL EXTRACTOR Edward M. Borg, Seattle, Wash. ‘Application June s, 1943, Serial .No. 490,022 (01. eat-22) 10 Claims. 2 1 invention, I have provided the improved details of construction, the'preferred forms of which are illustrated in the accompanying drawings, Where ‘This invention relates to canning machinery and it has reference more particularly to ma chines designed for use in the canning of ?sh in accordance with those methods that have been disclosed in my copending application for patent ?led on Feb. 17, 1942, under Serial No. 431,255. In the canning of some kinds of ?sh, suchas in‘Fig. 1 is a plan or ‘top view of a machine em hot water dipping treatment in the cans, whereby to loosen the meat tissues, but before sealing the plished. bodying the present invention. Fig. 2 is a side View of the same. 3 is a view showing in plan the conveyor halibut, it is desirable according to those methods chain belt to which the can carriers are attached. disclosed in my pending application, to extract some of the natural liquid content from the meat 10 and its relationship to the driven belt whereby the spinning of the can mounting pads is accom of the ?sh‘after it has been given a certain initial top end ‘closures on the cans. Furthermore, it‘is desirable that this extraction of liquid content 15 ‘ Fig. 4 is an enlarged, cross section taken on the line 15-4 in Fig. 1. Fig. 5 is a sectional detail of one of the ?lled should be accomplished by some mechanical cans as ‘located on a ‘can carrier and a cover or means that is consistent ‘with ‘the successful and retaining disk as applied to the can during the “spinning or extraction operation. economical practicing of the method. Among the Fig.6 is a plan view of a machine of an al methods which ‘I have previously disclosedand _ which I now desire to employ for this extraction 20 ternative form. Fig. 7 is‘a fragmental detail of parts of the of liquid from the meat of the ?sh, is that of cen mechanism shown in Fig. 6. tr'ifugal force, that may be accomplished by spin Fig. 8 is a cross section on line 8—8 in Fig. 6. Fig. 9 is a cross section on line 9-9 in Fig. 6. ning‘ the cans of treated fish. Therefore, it has been the principal object of this invention to pro vide a practical, ‘economical and satisfactory ma-_ chine for this purpose, comprising mechanism for the conveyance of cans, ?lled‘with‘the treated ?sh, through the machine and mechanism for causing Briefly described, the present machine com prises-a conventional type of means operable for the timed delivery into the machine of cans, ?lled with ?sh which have been given‘the initial hot water dipping treatment, mentioned in the patent the spinning of the cans as conveyed ‘whereby to effect a desired extraction of the "natural liquid 30 application above referred to, and other means of conventional type for the removal of the cans content of the ?sh'meat by ‘that centrifugal force from the machine after the liquid extraction that is incident to the spinning action. operation. In the machine, ‘a continuous, driven More speci?cally stated, the objects of this in conveyor belt is mounted for horizontal travel vention reside in the provision of a machine com about driving and supporting sprocket wheels, prising a plurality of individual can supports, con and attached to this beltat regular intervals of nested in succession to a driven belt conveyor; pacing, are the can carriers, each of which is these supports being designed each to receive a equipped with a vertical spindle, on the upper end ?lled can thereon as they successively pass a re of which is a can mounting pad, and on the lower ceiving station in the machine, and tojconvey the end of which is a driving friction wheel adapted, cans successively through an interval of travel by reason of the travel of the conveyor belt, to during which the spinning ‘action ;_i'or accome be brought into frictional contact with a driven plishing the liquid extraction takes place; thento friction belt, ‘thereby to drive the spindle and convey the cans in succession .to a point of dis rotate the pad to effect the spinning of the can charge and to mechanism whereby they are dis placed from the conveyor ‘and removed‘from the 45 thereon and ‘the centrifugal extraction of liquid machine. ' from the fish in the can. The can delivery means ' , operates in timing with the travel of the conveyor to deposit the cans‘ successively on the pads and the discharge devices operate to move the cans the extraction of liquid by the spinning operation. Still further objects of the invention are to be 50 oil the pads and from the‘machine after the ex It is also an object of this invention to provide means for retaining the meat in the cans during found in the details of construction of the various parts of the machine and in‘their combination and mode of operation, as will hereinafter be fully described. , , ,. , _ ,. . traction operation; the operation of the machine being continuous. Referring more in detail to the drawings: in its presentipreierred form of construction, In accomplishing these and other objects of the 55, Fig. 1, themachine of this invention comprises a 2,409,341 4 ?at, horizontal table top it, here shown as being axially centered relative to the spindle shafts oval in form, and supported at the desired work ing height by end frames l l—l I indicated in Fig. 2. Closely beneath the table top, adjacent its op and will be caused to rotate with the pads when the shafts are rotated. Near that end of the table which is opposite posite ends,.are relatively large sprocket wheels that at which the cans are. received, and at one side thereof, is a can off -bearing conveyor 51 onto l3 and ill, disposed in the same horizontal plane, and about which a continuous conveyor chain belt It operates; these sprocket wheels being sup ported, respectively, by vertical shafts l6 and I“! mounted in the frame as noted in Fig. 3. which the cans, after the spinning operation presently to be described, are pushed laterally from their respective carriers as the latter pass 10 this discharge position. This displacing of cans The shaft is is supported by bearings, such as designated at 20, while shaft IT is revolubly from the carriers is effected by the timed oscillat ing action of a horizontal lever 68 that is pivotal mounted in. bearings 2! and 22; these various 1 a - ly mounted on the table top by a ?xed pivot stud bearings being ?xed to the end frames l I. and l l- »- 7 81. This lever is so located that it may be caused which support the table. ' ' ' 15v to swing into and from contact with the cans and The shaft fl’ is equipped with a driving bevel , is actuated'for the displacing of a can from its gear wheel it, as noted in Fig. 2,.in.operative . carrier by means of a coiled spring 62 that is mesh with a gear l9 ?xed on‘a driven shaft like ?xed under tension thereto. The lever is moved which may extend to any suitable power device; Formed in the table top, above the line of 20 travel of the conveyor chain belt i5, is a continufous’ slot 2d, and mounted on the table top for travel along this slot are the can carriers 25; all carriers being alike and each comprising a horizontal plate 25 supported by wheels 21 on cross 25 to retracted position after each can displacing ac tion, by a cam wheel ‘63 that is ?xed on the upper end of the shaft 85. This cam wheel has six rises 63' arranged to contact with a cam follower roll er 313 on the relatively short inner end of the lever arm. The longer end of the lever swings into and from can ejecting position under the control of axles 28 extended through lugs 29 that are formed the cam which is so designed that as each carrier on the under side of the plate at its opposite moves to a‘position even with the conveyor 51, the ends. lever operates to push the can laterally from the Integral with and extending downward cen carrier onto the conveyor. trally from the under side of each carrier plate 30 In view of the fact that the lower end ?ange 26, and passing through the table slot .24, as will of each can ?ts down over the supporting spindle be understood best by reference to Figs. 4 and 5, pad, it is necessary that the can be slightly lifted, is a tubular bearing 39. The bearing ofeach thus to clear the pad for the lateral sliding of carrier is equipped at its lower end with lateral the can from the carriers by the action of the wings 3! which receive bolts 32, or the like where lever arm 60. Therefore, as will be observed by by the carrier is connected to a link of the con reference to Fig. 5, the spindle shafts 40 are tubu veyor chain belt. Thus, with the travel of the lar and coaxial of each is a shaft 68 of small conveyor chain belt, the succession of can car diameter which, at its upper end has a small disk riers, which are attached in close, regular suc~ 68’ ?xed thereto to normally lie flush with the cession to the belt, are caused to travel upon the 40 top surfaceeof the pad. The lower end of the table top and vto follow the ?xed path of the slot ‘ shaft 68 extends somewhat below the lower end 26, as will be understood by reference to Fig. 4. Wheel guides may be provided on the table top if such is desired. , Revolubly contained within the tubular bear ing .39- of each can carrier is a vertical spindle shaft lid, operatively mounted by sets of anti friction bearings 61 and 42 at upper and lower ends thereof. On the upper end of each spindle. shaft is a can mounting pad 43 that is set down within a recess t6 in the plate 25 so as to be flush of the spindle shaft and is adapted, when the carrierreaches the discharge position, to engage with a can plate 69 that is ?xed in the frame CI as shown in Figs. 2 and 3, thus to lift the shaft 68 and disk 68' to effect the lifting of the can from its supporting pad, and thus to permit the can to be slid laterally from the carrier platform 25 directly onto the conveyor 51. - Assuming that the cans 50 of treated ?sh are being successively advanced into the machine by withthe top surface of the latter. Fixed on the the timed action of the star wheel 48, and are lower end of each spindle shaft, which extends being placed on the carriers 25 and centered somewhat beyond the lower end of the mounting upon the spindle pads, it is then the function of bearing 33, is a friction wheel 135 for revolving the 55 the spindles to spin the cans to effect the cen~ spindle, as will presently be explained. trifugal extraction of the liquid content from the At one end of the table iii is a can feeding or ?sh. To obtain this desired spinning of the cans, delivery device comprising a horizontal star wheel I provide a driven friction belt 10, as shown in 68 that is ?xed on a vertical driving shaft 49. Figs. 1 and 3'. This friction belt extends along a This wheel is rotably driven by shaft 49 in an ex 60 straight run of the conveyor chain belt IE; it act timing with the travel of the can carriers, by ' is continuous and operates at one end over a belt reason of their connection with the conveyor wheel ‘Hand at its other end about a driving pul chain belt l5, and operates to advance the cans ley 12/ 'An idler wheel 13 holdsone run of the of ?sh, designated byreference numeral 58], from belt 70 parallel with- theline of travel of the ad a supply conveyor 55 onto the carriers 25as the ?__5 jacentjr-un of the conveyor belt, and in- such latter are brought successively into-position to ’ ’ spaced relationship thereto that as the can car receive them, as will be understood by reference to Fig. 1. The star wheel operates to engage and riers are conveyed along this friction belt, the wheels 45 on the lower ends of the spindle shafts push the individual cans 50 from the conveyor will- be. brought into frictional contact therewith. 55 along a guide rail '56 onto the carrier plates 70 The. belt, 10 is driven at a fastrate by means of zi?and to center them-upon'the spindle pads 43. " a shaft 15 which mounts the pulley wheel ‘Hv These pads are of an’ exact diameter, and are slightly tapered so as to have an easy and slight on its upper end; the shaft 15 being rotatably sup portedin bearings 16 in the frame structure-and wedging ?t within the countersink of the end is operatively connected with the driven‘shaft flange of the .cans and the cans‘arethereby held 7e 11 by agear-train designated at ‘H in Fig. 3. 7 The 6; chain. belt-1 H55 1 like belt l5 previously" described; travel of the belt 13 causesthewheels; 45.5 and, the. spindle shafts togspin. the cans at aihighzrate". whereby the desiredliquid, extraction willi be ‘of?’ fected; it being understood that the liquid. will: Each of: the“ carriers; 125 comprises the central. depending: bearing portion; 3G? in whicheapspine: dla iss reuolubly contained, as. inzthe' device: be dissipated from the open upperxends. of. the. r‘ previously: described. This: spindle carries aLCBTIE pad. 413/‘ and at its: lower; end has . a. spindlea drive.v cans. ‘ i ‘ . ‘ To prevent. the ?sh contents; of? the: cans from. spilling out by reason: of this. spinning actionya retaining closure disk; 80. is.‘ provided.‘ for each: can. It is shown in‘Fig. 5, thateachcarrier. 25. is equipped. at; its ends-1 with vertical standards 38:. and 3.8» which support a; horizontal, cross bar. 89 centrally’ and lonigtudinally- over. the carrier; the bar 89 having. downwardly‘ directed legs?il; and. 90 that. are slidably mounted. onthe standards? 83' and 83 for limited vertical movement; Coiled springs 9| act, under. compression; upwardly ingwheelgd?'. . ‘Thiszbelt: l 2! Eds supportedlhorizontallm fontraveh about: sprocket. wheels Hi0: and. L01; the. latter:v '1' being relatively ‘ large‘. and; supported for rotatiom. byra vertical shaft m2‘, which revoluble: in1 the; frame. The.sprocket:wheel. mil ismountedmn a vertical drive shaft. Hi3 andaadjacent thiszspmcké-i et isea star‘wheell I04‘ for timingpthe feeding of: ‘ cans’ into‘. the; carriers: This is: timed 1 by a. drive ing. connection; with shaft: M13; comprising: the. against opposite ends of thecrossgbar and against inturned feet. 92 on, the. standards, thus. to. lift. the intermeshing gear wheels. MA and‘ Hid-whiclrare. ?xed respectively; onthe. shafts its‘ and ashatt Hi6. which‘. mounts the: star: Wheel. 19.1%,. as: seem crossbar upwardly; this upward movement being, limited by the heads93’ of.bolts.93 thatare ?xed in the. feet. 92‘ and. extend. up through holes: 94: Coaxial of thessprockett wheel; ill I ,..and. beneath; it, is a friction wheel left that isirevoluble; about in the cross bar. Mounted centrally upon each cross bar 89 by: supports 95‘ is a. roller. 96 adapted duringttravel the, speedlby shaft;a m2. train and; of gears is. rotatably shownlimll‘i‘gs. driven. at '7 andz.9: l; comprising; agear: wheel. H0. that is ?xed’. to. the. of the carriers’ through‘ the. machine to be’ en gaged with a cam rail 91 supported fromthe table loweriend ofvthe shaft. Hi2‘ and drivesasmaller top by brackets 98., This. rail extends directly is'?xed'ina frame. member tilt. over the-path.» of travel of the. cans and carriers. along the length of the belt 10. . The rail 91 is so positioned that as the. carriers. 25. successively pass aboutthe ?rstturn in their path of. travel and start on. the. straight line of a smaller gear; wheel. IIGA.» ?xed on‘. a shaft; [it ‘Y idler gear H2:revolubl'e onlai stub shaft iiIS‘that' Gearrtt? drives:v travel, the rollers il?will. engagetherewith. At ‘whereon. a larger: gear-wheel I't'l also. is;fixeii1. Shaft H6 is revolublyr supported’ inthe» frame: member M4. Gear: lll‘l. drives: a smaller gears H8 that is; fixed. on the lowerv end‘ of: a sleeve: H9 revoluble: QnLthe' shaft m2. and. which sleeve. a location. approximately. even with. the driving ‘ ‘l ‘at its‘ upper end, mounts: the. friction; wheel. lei: pulley 'iLtherail 91 is downwardly oifsethas; at thereon. 91.’ in Fig. 5, thereby to effect the downward site ends‘ of ‘ the. train. are fixed respectively; to. movement of the‘cross car 89 of eachcarrier as the‘. wheels Hill and H38; while theintermediate: gears rotate. on stationary‘ axles‘mounted- in the; machine frame. The‘wheels‘ 45'! are adaptedlto; bev engaged. withthe rim of wheel 1.031 to; cause: it reachesthis location. ‘ Revolubly. mounted in the cross bar 89, in a ver tical line that is coaxial of the spindle shaft of the carrier pad, is. a. sipndle I05.’ which at its. lower end mounts a head “it from Whichspider. In‘ this: train of. gears,. those: at opp'o-l thepads to spinthe cans carried thereon‘; as . accomplished by? the beltrirr the device! ?rst dei legs H11 extend downwardly to rigidly support. scribech. . the closure disk ‘86; the designof partsbeing such. 45; In this - latter ‘ device, the . same closure‘: support? that. when the crossbar 89 is thus moved down ing? structure‘ and: closures‘: wouldi be associated; wardly by the engaging of therollers 96‘ with‘ with‘th'ezcarriages i515 asshown in‘; Figs. ‘band 5.,v for retaining the fish: in the“ cans: during the: the downwardly offset partof; the cam rail,,the» disk 80 willbe moved justslightly into the open spinning ‘operation, and‘ these : would be‘. actuated 1.. end of the can, as seen. in Fig..5,) thus; to retain; thecancontents. This disk may be. perforated or. slottedfor. escape otliquid... or. it may; be of a: I by a cam rail 91’ supported‘ from the tabie'ltop’: , Having thus described my invention; whatlr claim. as; new thereinxand: desirettoisecure;byrLet ters Patent is: diameter. to provide slight clearance withthecan walL. It willbe. understood that the; rollers 45. 1". A. machine of‘thechara'cter descrihed:corn»~<. engage belt Til immediately after the. disk 60 is 55 prising a-pluralityr of can. carriers, a. rctatabiy ‘ lowered ‘and that assoonastherollers 45‘disen mounted padon each carrier,.meansi for-moving‘: gagethe belt. and the rollers; 96. disengage the» the carriers in succession" along. 3,2.(3011til'I‘LlQUS-J path of. travel through a receiving-‘station and cam rail 91, the springs 9 t-willacttolift thecross‘ bars 89‘ and thus to lift the closure disks all clear throughxa' discharge. station, a: canfed mesh-a1» of I the cans so as. not tointerferewith their re moval. from the machine by the action’ of the . nism operable to? place an unclosed,product-filled can on each carrier as it‘ moves. throughzthetre e > ceiving station, means: for: effecting removal of By making amachine-having a belt ‘in of more each; can from. its‘ carrier as it“ movesrthroug'lil or less length between the rollers 12 and 13, the the discharge station, means for spinning the spinning period may be extended or shortened 65 pads to effect rotation of the cans thereon ‘and accordingly and the rate of spinning can be de an incident centrifugal extraction of liquid con termined by the speed of travel of belt ‘It. tent from the solid content of the product in the A machine of this kind will accomplish the de cans, can cover members supported by the car sired extraction of liquid content effectively and riers and means for effecting the movement of ejecting lever. arm. 60. quickly and without any damage to the cans or 70 each from raised position above the can to a position in the can to retain the solid content of their contents. the product in the can during the centrifugal In Figs. 6 and 7, I have illustrated an alter extracting while permitting discharge of the liq native form of machine, wherein a succession of uid content therefrom. can carriers I25, substantially like the carriers 25 2. A machine of the character described com~ previously described are connected to a sprocket 75 2,409,341 7 prising a plurality of can carriers mounted for travel along a continuous path through a re ceiving station and through a discharge sta tion, a rotatably mounted pad on each carrier, means for causing said carriers to be moved in succession along said path, can fed mechanism timed with the travel of the carriers for center ing unclosed, product-?lled cans on the pads as the carriers move through the receiving station, 8 ferentially curved about a center point, and - wherein the friction member comprises a rotat ably driven wheel that is mounted concentric of that part of the path and is engaged by the spin dle drive wheels. 7. In a machine for centrifugal extraction of liquid content from a product, a can conveyor, means for moving the conveyor along a path of travel, an endless belt having a part thereof op means for the removal of cans from the carriers 10 erating parallel with said path and in a direc as they move through the discharge station; each tion opposite the travel of the carrier, a spindle of said pads having a mounting spindle, a drive in the carrier, a can mounting pad on the spin_ wheel ?xed to the spindle, and a friction mem dle, means for holding an open product-?lled her in the machine disposed in position to be can on the pad and for pressing against its solid engaged by said wheel as the carrier travels along 15 content during an extracting operation, a drive the path to cause spinning of the pad and can wheel on the spindle adapted to engage the belt .to effect centrifugal extraction of liquid content to rotate the spindle and can for centrifuga1 ex from the product and dissipation of the said liq traction of liquid content from the product. uid content from the can and means movable 8. A centrifugal extractor comprising a carrier with the can carriers for retaining the solid con 20 member, a support rotatably mounted by the car tent of the product in the cans during the periods rier member, means for coaxially centering an of liquid extraction. unclosed, product-?lled can on the support for 3. A machine of the character described com spinning thereby, a cover member on the carrier prising a plurality of can carriers mounted for member‘ applicable to the can to retain the solid travel along a continuous path through a receiv 25 content of the product during spinning of the ing station and through a discharge station, a can, while permitting exit of the liquid content, spindle revolubly mounted in each carrier, a can and means for spinning the support and can to seating pad on the spindle, means for causing effect the centrifugal extraction and separation said carriers to be moved in succession along said of liquid content from the solid content of the path, means timed with the travel of the car contained product and its dissipation from the riers for centering unclosed, product-?lled cans open end of the can. on the pads as the carriers move through the re 9. A centrifugal extractor comprising a car ceiving station, means forthe removal of cans rier member, a support rotatably mounted by from the carriers as they move through the dis the carrier member, means for coaxially center charge station; a drive wheel ?xed to the spindle 35 ing an unclosed, product-?lled can on the support of each carrier, a friction member in the machine for spinning thereby, a cover member on the car disposed in position to be engaged by said wheel rier member applicable to the open end of the as the carrier travels along the path to cause can to retain the solid content of its product spinning of the pads and cans to effect centrif during the spinning operation while permitting ugal extraction of liquid content from the prod 40 out?ow of the liquid content past the cover mem uct and dissipation of the said liquid content ber, means for spinning the support and can to from the can, a can cover support on each car rier, a can cover movably mounted by the sup port, yieldable means normally holding the sup port in a position above the can as placed on the pad, a cam rail on the machine, and means on the cover support adapted to engage the rail to move the cover to position to retain the solid content of the product in the can during the centrifugal extraction and dissipation of the liq uid content. 4. A device as in claim 2 wherein the friction member comprises a belt moving in a direction opposite to the direction of travel of the carrier. 5. A device as in claim 2 wherein the friction member comprises a driven, continuous belt with a length thereof extending along the path of travel of the cans between the receiving and dis effect the centrifugal extraction and dissipation of liquid content from the product, and means for causing the cover member to apply pressure ' to the product during the process of extraction. 10. A centrifugal extractor comprising a can carrier, a rotatably mounted pad on the carrier, means for moving the carrier along the path of travel between a receiving station and a dis— charge station, a feed mechanism at the receiv ing station for centering an unclosed, product ?lled can on the pad for spinning thereby, a cover member movable with the carrier, and ap plicable to the open end of the can with clear _ "ance, means for actuating the cover member to a position against the product in the can to re tain the solid content in the can during the spin ning operation while allowing discharge of liq charge stations and supported in position to be uid conptent past the cover, and means for spin engaged by the wheels of the spindles to impart 60 ning the pad and can for the centrifugal extrac rotation thereto as they move therealong. tion of liquidcontent from the product, and its 6. A device as recited in claim 2 wherein a part of the path of travel of the carriers is circum discharge from the open end of the can. EDWARD M. BORG.