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I Oct. 15, 1946.
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E, M, BORG v
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2,409,341
CENTRIFYUGAL EXTRACTOR
Filed June 8, 1943
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4 Sheets-Sheet l '
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O
r INVENTOR
Eowmeo M. Boxes
BY
by]: (21W
ATTORNEY
Get. 15, 1946.
i
E, M, BORG
'
2,409,341
CENTRIFUGAL EXTRACTOR
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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.
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