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Патент USA US2119945

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June 7, 1938.
2,1 19,945
Filed Sept. 22, 1934
S‘Sheets-Sheet 1
June 7,1938.
Filed Sept. 22, 1934
2,119,945 Y
3 Sheets-Sheet 2
June 7, 1938. .,
F. w. sELosKE
Filed Sept. 22, 19254
I5 Sheets-Sheet 5
Patented June 7, 1938
2,1 19,945
2,119,945Y '
Frederick W. Seloske, Hoopeston, Ill., assignor
to Food Machinery Corporation, San Jose,
Calif., a corporation of Delaware
Application September 22, 1934, Serial No. '745,145
(Cl. IBO-_9)
1 Claim.
This invention relates to improvements in green cobs of green corn wherein the cutters and ear
corn cutters and particularly to the type of green Y gauges are both mounted on a removable member
for easy and rapid interchange of cutters and
corn cutter illustrated and. described in the co
pending Schmidt application Serial No. 635,679, gauges when necessary.
With such objects in View as Well as other ad
5 now Patent 2,034,993, issued March 24, 1936.
>In the Schmidt patent there are shown rotary vantages inherent inthe invention it is to be
cutter heads carrying cutters for removing the understood that applicant is not necessarily
kernels from the cobs and also carrying gauging bound to the exact structure and arrangement
devices to center the ears to the cutters as they shown; that the shown and described devices are are presented thereto by the ear feeding devices. more or less illustrative; are not necessarily 10
The gauging devices are mounted on the same
drawn to scaleand that some parts may be more
rotary head as the kernel cutters but on separated
or less exaggerated in size and arrangement to
more clearly illustrate the creative part of the
members carried by the head.
It has been found that a slight disadvantage
ensues from this manner of mounting the gaug
a clearer understanding of the invention will be
rying and adjusting the gauges and numerous
embodying the improvements.
The present improvement to the cutter head
consists in mounting the ear centering and gaug
Figure 2 is a vertical sectional elevation taken
on substantially the line `2--2 of Figure 1.`
Figure 3 _is a side elevation of the cutter head
showing the placement of the centering gauges
on the Shanks of the cutters.
Figure 4 is a sectional elevation taken on sub
stantially the line 4-4 of Figure 3.
Figure 5 is a sectional plan of the cutter head
taken on substantially the line 5_5 of Figure 4,
but rotated through 90° showing the open spring
pockets for the springs that control the tension
ing devices directly on the cutter Shanks so that
they move integral with the cutters as they are
expanded to accommodate the different size ears.
25 This manner of mounting eliminates all joints
and connections between the gauges and the cut
ters and permits a much closer and ñner adjust
ment than is expedient with the former arrange
ment and removes all possible changes due to cen
3 O trifugal forces.
In this manner of mounting the gauges direct
ly on the cutter Shanks also concentrates all of
the centrifugal forces set up in the cutters and
gauges into one piece of >mechanism and causes
35 the gauges and cutters to always expand in exact
ly the right ratio so that the kernels are cut from
the cobs in the manner desired and the gauging
cannot shift relative to the cutters in any manner.
AIt is therefore an object of the invention to pro
40 vide a unit cutter head for removing the kernels
from the cobs wherein the gauging devices for
on the cutter movement.
Figure 6 is a vertical sectional view taken on
substantially the line 6-6 of Figure 5 and shows
the cutter head parts at a section substantially 90
degrees from that of Figure 4. .
The improvements disclosed in this application
have been applied to a green corn cutter employ
ing two high speed rotary heads designated I and
2 mounted in fixed housings 3 and _rotated by
are mounted directly on the shanks of the cut
means of gears from a source of drive not shown, ‘40
meshing with the gears 4 forming a part of each
unit head. The gears 4 are ring gears and rotate
on the inserted ring bearings 5 which are secured
ters so that no lost motion can occur between
in channels 6 of the housings 3. '
centering and guiding theears into the cutters
4 Ul
Figure 1 is a general plan view of a machine
joints between the gauging devices and the cut
Reference being now had to the drawings where '
ing devices since it requires extra parts for car
these parts.
It is a further object of the invention to pro
vide a cutter head for removing the kernelsvfrom
the cobs wherein gauging devices for centering
and guiding the ears into the cutters are mounted
5 O directly on the VShanks of the cutters and having
A removable circular plate l with a large cen- `
`tral aperture 8 is carried by the ring gears 4 and
is loosely positioned in the recess in the ring gear
for easy and instant removal. During operation
this plate l is held in operative relation in the
machine by the drive dogs 9 pivoted to the ring `
adjustment means somewhat radially from the gear 4 at I9, the dogs 9 normally resting against
center of rotation of the cutter head to there l the inclined surface I2 of the plate l.
by control the depth of cut.
It is a further object of the invention to provide
v55 a cutter head for cutting the kernels from the
The kernal cutters I3 are pivoted to the remov
able plate
in dotted
1 as> atlines
I4. inThey
3, have
in which
a slot
2,1 19,945
the pins IIî,rseel also Figure 4. The pins I6 extend ^ that it gets crosswise in the cutter head and re
into the surface of the plate 1 into the recesses I1
and bear against the compression springs I8
which tend to hold the cutter blades in a closed
position and under a predetermined tension, the
quires considerable time to remove it Yduring
which time the advancing stream of corn is con
closed position is substantially that of Figures
stantly piling up and causing stoppage al1 along
As has also been mentioned accurate
3 and 5. A ring 1', Fig. 4, is mounted in an an
alignment of the ears is highly important with av
rotary head cutter, and is not nearly so important
nular recess in ring 1.
with Vstationary cutter heads where the cutters
The pins I6 _extend
through-ring' 'l"_ which is movablerelative ‘tof ring
In :the non-‘rotating heads Ythere are vno cen
1. AThis causes simultaneous movement yof'all the
_trifugal forces set up in the mechanism ,of> the
The gauging devices Vfor centering and guiding Í stationary heads as is the case in the rotary'
' the ears into the cutters are designated at I9,` heads, 4the cutters and gauges only are expanded
Figure`3,_and are secured to the shanks of the
,as the ears enter the cutters, and it makes littlel
difference Whether the ear is ñnely aligned or not,V 15
alternate'cutters I3 as atï2l_l_ by Vmeans 'of the
screws 2I and are capableof radial adjustment
the‘only speed >in the'entire operation is the move
by means of the slots or grooves 22 seen best in r ment of the ear itself and because of this the ear
Figure 5 and Figure 6. ’I'hisjmanner'of :mounting Acan correct its `alignment as it enters the gauges
and cutters and passes through the cutters in
the gauges directly on the Shanks of the cutters
20 and offset from a radial line through the cutters
proper cutting relation.
eliminates all jointsgandloose connections ¿and
saves'many- parts` in manufacture _and makes
shown inthe present application; the'cuttersrand
the adjustment relative _tothe cutting edges of
gauges are _controlled Vin_Ítheirexpansion Yby cen-`
->Withthe `rotary heads -of the ltyperof machine v
the cutters very simple_-and_„~eflici`ent, Vand by
_ trifugal _forces e »against .themtension- of "the Icom
mounting theMgauge‘son alternate cutters'and
pression springs _» I 8.; ’ >`T_l?ie tension vof 'fthe vsprings
having each gaugeoverlaptwo cutters a saving in
partsrand rotating'weight'is effected, anda free
. andunobstructed path provided for the mover-M_V
ment of the? cutkernelsfas they areV thrown from
is 4adjusted-»soY that'the;y cutters are-neld-»infian
In the-operationof machines of this 'type at
high speeds and high efliciency _ithas been found
g that >‘more orfless of the starch juices _of >the cut
kernels find their Way into the bearings of the
35 gears »inthe housing» 3 and after _ajtime somewhat
equilibrium and open somewhat morethanshown l
in Figs. .3 and 5. 4The result ofthecentrifugal _ '
forces being balanced bythe'springsis -thatwtheg
cutters .and vgauges are very delicatelyfpoised 30
while rotating atY Va high speed îand »the least“
touch Willopenjthe cutter circleand _cause-_all-of
the cutters and yg_a;u_ges.¿,to expand. ¿On :gg-_
count of the Vdelicate :poise-_of the cutters ¿and j
gauges, the ear must enter thegauges and cutters 35
in substantial axial alignment Awith-the center 4of "
gumsup thebearings and adjacentiparts. , __ _
To render these juicesas harmless as possible
rotation ofïthe gauges andfcutters-else the` gauges
Water is¿ fed into kthe spaces ¿31 ,Figure _2, a drop Í and cutters will lbe »undulyL expanded fandßthe
at a time during operationby-means of the con
cutting circle too large with the resun; thatthè
nections andthe sightrfeeds ¿39, the exact amount Y first portion »o_fr. kernels Willnot-be properly'cut 40. -
being controlled by suitable,valves‘140;v Oilisîsup
as to depth l»and thus much valuablercorn-lost ` "
plied Ato the ¿bearings v-at the necessary intervals " .tothe `canner,which»Will moreory less pass Yaway
' ï
through the plug holes 4I. 'I‘hisffeature'isßnot _ with thecob.>
claimed' in this application Ybut is;-»claime_df¿and. _ ~ _Following the -rotaryeupter negri( just _described .
shown in -a copending application __SerialrNo. »is another rotary head of ythe Vsamel general type
745,1l8rñled by CLA.r Hoyof even-date with this but instead of »being ñttedfwi-thgcutters the=blagdes " `
are shaped to Vproduce a Vscraping-seiyîfect -on fthe Y,
Itis believedthat an 4operative >descriptionlfrom cob -toremove ,l any 'adhering yparts ¿of 4¿kernels ,e1-,0, ~
scraping head is Yfurther- for the-purposefof
nowon will' disclose 4theimportant _features of this
improvement in -a better. manner. w ,_
lcutting `what is termedV “Creamerstyle :cornî’ 50
wherein tire nrstheaa is » »cutoff-*the
_tops Vvof the »kernels or possibly -one-fhalf ~‘ of ¿the
' The foregoing description' practically covers the Y kernelsfand then-as the c_ob_isiadvanced‘through
`mainï`_operative- features of "this . improved green thescrapinghead 'by the feed rolls between fthe
corn cutter. The hu'sked'ears ar‘eplaced in the
- ytrough 24 either by hand Y'or any suitable auto’
'matic feeder and as thech'ain '23 is runningcon
‘ Ítinuouslyfthe ears Yirrimediately-'move forward at
, _jquite a high lineal speed and if the'elevation ad-V
justment- of 'the sprocket 33ji's correct for the
diameter Vears being `runthe 'point'of >the ear Vis'
heads and the yfeedrolls‘v at-~the outside ¿of the _.
y scraping head, ther pulp -remainingçinthe partlyk
-Crapedfrom the cob andimixed ç
Y 60
entered into `the feed rolls 42fand immediately
close as_possible
thrust into the"v gauges I9 'and guided ,byr them
chaff._j_-Tli_e »delicate adjustment'çof »the cutters» _
into’thefcuttersïlgsj Due to the` high rotative ' _and gaugesandîthe properî alignment -of :the ears> ’
speed `of the cutters '_ and gauges: andjthe ‘feed as has >beenl described is practicallyfimperative,.
rolls 42 itis highly important> that the vaxial align. Vwhen _. cutting-»Whole ~ kernels fior', ‘aj »Wholelëgrain i
>ment of the a'dvancing'e‘ar’with the` center of ro
' tation -ofy the `gaugeszand cuttersbe' Vas> near'per
ffect asiïpossible, because i_f_,the point of the ear
doesfnot- enter the feed-A` ro1ls'ff'42 Yproperly jit _will
» »noty enter the gauges I9 or'thecutterslß proper
; product, _ ___I-Ierefthe uniformity o_f-,cut-andfthe uni#
fofmiwef :grain Size, determines-largely the; grad.à 1
ingfof'the product infthelha'nds of...the,:j_obbers ~
and .vv-ith this Íïimproved machine .aÍbetterßand
more jumferm „ ‘graaeeffvrhme ,grant com :spre- fm Y
ly andtheY result YWill’be that -the kernelsVV Will be fduced‘ than’ was heretoforepos‘sible', thus bringing
more or less crushed and damaged -and >they will
_notïbe'uniformly‘cut `fromV the cob-land'asjhas been
_mentionedsometimes‘ïth'e ear is canted so >much
to the canner 'a better «pricejforfhis ,product_f>>` i.
Y, In the operation :of lthese’higli "speed" machines
.1rfisimpeeereîihri;the-regresa @régir
a head can be changed in a minimum of time and
this improved cutter head is designed to permit
of a very rapid change and replacement.
The center plate 1 of the cutter head, and the
same for the scraper head, is quickly removable
simply by hand and usually without the necessity
of tools. Since this plate carries all of the cutters
and gauges and all of the operating mechanism
combined therewith, its complete removal from
away from the dogs 9 which will be caused to lie '
in the space 44 by swinging’on their pivots l0,
they will then not overlap the plate 1 which can
be lifted bodily from its recess in the ring gear 4.
What I claim as new and desire to secure by
Letters Patent is:
In a green corn cutter, a rotary head assembly
including cutter blades for removing the kernels
from the cob, a ring member to which the cutter
blades are pivoted, depth of cut gauges mounted 10
erative mechanism.
directly on the shanks of said cutter blades and
As has been described this plate 1 is held in v adapted to move in unison therewith, guide means
operative relation in the ring gear 4 by means of ñXedly secured to the cutter blade shanks and
the locking dogs 9 riding on the surface of the having interlocking engagement with the depth
15 plate 1. The ring gear is rotated in the direction
of cut gauges to hold them in a definite _relation
of the arrow Fig. 3 with the result that the dogs to the cutter blades, said guide means being offset
10 the ring gear 4 instantly removes all of the op
9 and pins 43 act as drivers and move the center
from a radial line through the cutter blades so as
plate 1 with the ring gear and by overlapping
to givefree and unobstructed movement o'f the
the plate 1 while resting on the surface I2 tend
cut kernels as they are thrown away from the
20 to hold the plate in axial adjustment with the
ring gear.
To remove the plate 1 and all the attendant
mechanism it is simply necessary to rotate the
plate 'I counter to the direction of normal rota
25 tion in operation when the pins 43 will be moved
cutters, and means providing relative adjustable 20
movement between the cutter blades and the
depth of cut gauges to thereby vary the depth of
cut at Will.
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