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Патент USA US2405292

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Aug. 6, 1946.
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H, P, ¢URLEE
NUT BLANCHING MACHINE
Filed Jan. 24, 1944
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2,405,292
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Zmnentor
Aug- 6, 1946-
HP. CURLEE
2,405,292 '
NUT BLANCHING MACHINE
Filed Jan‘. 24, 1944
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Aug. 6, 1946.
'H. P. CURLEE
2,405,292
NUT BLANCHING MACHINE
Filed Jan. 24, 1944
5 sheetséshe'et s 7
Jnneu’tor
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attorney
Patented Aug. 6, 1946
2,405,292
UNITED STATES PATENT QFFICE;
2,405,292 _'
NUT BLANCHING MACHINE
Harvey P. Curlee, near Charlotte, N. C. \ I 0
Application January 24, 1944,1Serial No. 519,574
6 Claims.
1
(01. 146-32) '
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This invention relates to a peanut blancher,
and more especially to a machine for blanching
peanuts and other roasted or partially roasted
63;
nuts having quickly removable blanching cyl
.2
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Figure 8 is a longitudinal sectional view in a
vertical plane taken through one of the blanch
inders and having means whereby the meal and
hearts of the broken peanuts which are usually
carried away as waste, are recovered and sold
for commercial purposes.
a
the line 1-1 in Figure 1, and omitting the walls
10 and ‘H, gate 14, and also omitting the brush
ing rolls;
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Figure 9 is an elevation looking at the left
This machine is es
hand of Figure 8;
Figure 10'is a top plan View of the screening
which have a thin skin which must be removed H) mechanism, and taken substantially along the
before the nuts are subjected to other processing
line Ill-l0 in Figure 1, omitting the suction
operations.
nozzle-and showing a portion broken away;
It is an object of this invention to provide a
; Figure 11 is a cross-sectional view taken along
nut blanchergin which» the rolls are easily "and
the line I|—l I in Figure 10;
' quickly removable for the insertion of new- rolls, 15 Figure v172is a view partly in section and part
as these rolls are covered ‘with sandpaper or
ly in elevation, and taken along the line I2—l2
other abrasive covering and quickly wear ‘out,
in Figure 170.
and it is necessary in other machines of this
Referring
more
speci?cally
to
the
drawings,
the
type to largely dismantle the machine in order
numerals I0 indicate uprights of the framework,
to place new blanching rolls in the machine, and 20 numerals
ll, 12, and I3 represent the horizontal
by providing arquickly replaceable roll and also
portions of the framework, the two sides ‘of the
by providing means for retrieving the waste prod
frame being tied together by suitable angle irons
ucts of the machine, a double saving is effected.
such as indicated atv Ill. The end posts It] extend
It is another object of this invention to pro
above the machine, and have'suitable bars
vide in a nut blancher means for separating the 25 up
l6 secured thereto which support a hopper I 7.
?ne particles of nuts which are broken up in
The front wall of the hopper is supported by a
the blanching operation without the same being
plate l5. I‘I‘he plate l5 and the front wall of the
wasted ‘by providing suction means for remov
hopper l’! have a pair of holes l8 therein through
ing the chaff from the waste products and sep
which the nuts may pass from the hopper to
arating means for separating the ?ne meal from 30 the blanching rolls.- Each of these holes is reg
the coarser particles and depositing such into
ulated as to size by means of a sliding gate [9
separate containers so that these products may
for regulating ‘the amount of nuts which may
be salvaged from the blanching operation~
?ow from the hopper" l'i onto’ the blanching
Someof the objects of the invention having
rolls. The horizontally disposed members 13
been stated, other objects will appear as the de DO U! have mounted thereon a sheet member 20 which
scription proceeds, when taken in connection
supports a platform 2! on which are mounted
with the accompanying drawings, in which:
bearings 22 and 23 for the shafts 24 and 24a
pecially adapted for the ‘blanching of peanuts
Figure 1 is a side elevation of the machine
with the front side wall coverings removed from
the frame-work of the machine;
7
of the rolls 25 and 26. The shafts 253 and 24a
40
have ?xed thereon pinions 30 ‘and 3| which mesh
with each other, and shaft 24 has ?xed thereon
Figure 2 is an end elevation of the blanching
a 1V pulley 32 which has a belt 33 thereon, which
rollers and associated mechanism as viewed from
belt is mounted on a pulley 34 of an electric
along the line 2—2 in Figure 1;
motor 35 suitably suspended below the plate 2!.
Figure 3 is a top plan view of Figure 1, show
These
pinions 30 and 3l~ cause the top surfaces
ing portions of the housing broken away;
45 of the rollers to turn away from each other, the
Figure 4 is a view similar to Figure 2, but
direction of rotation of roll 25 being clockwise
showing portions of the front wall broken away;
and the direction, of rotation of roll 26 being Figure 5 is a longitudinal sectional view'taken
counter-clockwise in Figure 4. The rolls 25 and
along the line 5-5 in Figures 3 and 7, and
26 are shown‘ in pairs in ‘the drawings, there
omitting brush 63;
,
being two pairs shown, but since they are identi
cal,- like references willrapply to the two pairs
ing rolls disassociated from its driving shaft;
of rolls and associatedparts. Where duplicate
Figure 7 is a top plan view of one of they sets
sets of rolls are employed in the machine, the
of blanching rolls, and showing the driving
motor shaftv of electric motor'35 would have an
means in associationtherewith, andtakenjalong 55 additional pulley 4E1, mounted. thereon with a
Figure 6 is an elevation of one of the blanch
3
suitable belt running from pulley 49 to a pulley
32 mounted on one of the other pairs of shafts
for driving the same where there are two pairs
of shafts as shown in Figure 3. The rolls 25 and
25 are identical and comprise a cylindrical shell
4| having head members 42 and 43 in its ends,
the head member 43 having a hole of suf?cient
wardly over the rolls 25 and 2B. Disposed in a
slanting position below the discharge end of the
rolls 25 and 26 is a screen frame 80 whose upper
end is adapted to rest on the ledge member 68
and whose lower end rests on the upwardly and
outwardly slanting end portion Bl, the upper end
of the screen frame having secured thereto a
?exible flap 82 made of suitable pliable material
which
is adapted to rest against the ends of the
24 or 24d, and the shaft 24 or 24a at its free
end is restricted as to size as at 45 which provides 10 rolls 25 and 26‘ and against support 61 to'pre
vent the nuts which fall off the ends of the rolls
shoulders 44 against which a smaller hole in head
25 and 26 from falling back underneath the rolls,
member 42 is adapted to fit. The restricted por
size to slidably but snugly ?t around the shaft
tions 45 of the shafts 24 or 24a are threaded and
have a nut 46 thereon so that when the blanch
ing roller is placed on its shaft, it will be tightly
held in concentric position relative to‘shafts 24
or 24a by tightening of the nut 46. When it is
desired to remove the rolls 25 or 26 for replacing
newly covered rolls, it is only necessary to re
move the nut 46 and slide the rolls 25 or 25
from off shaft 24 or 2411." The rolls‘ 25 and‘ 2B
are provided with a suitable abrasive covering
such as sandpaper 4'! which is spirally wound
but will cause them to fall downwardly over the
screen 80 and be discharged onto an endless
broad belt 83 disposed in an inspection table 84,
and being mounted on rollers 85, the roller for
the remote end of the belt not being shown in
Figure 1. Operators sit or stand on each side of
the table 84 and inspect the nuts on the belt to
remove improperly blanched nuts or other imper
fect nuts from the belt as the nuts move to dis
charge position at the other end of the belt.
Disposed below the plate 20 and the screen 80
is an elongated frame 86 which slidably rests on
around the shell or cylinder 4|, and the ends of
this spirally wound portion of abrasive material 25 angle members 81 and 88. In the left-hand por
tion of the frame 86 as viewed in Figure 1 and
41 are secured in position by means of a suitable
out to point 89, a screen wire 90 is disposed
cap member 5%) ?tting in a cut-[away portion in
within the frame 86 and from the‘ point 89 onto
the shell and beneath which the end of the strip
the point 9|, there is disposed a sheet metal
or sandpaper is adapted to lit and be bound in
position. These cap members 50 are secured in
thehead members ‘42 and 43 ‘by any suitable
means such, as a screw 5|.
The end of each
blanching compartment remote from'the hopper
11 has a wall 60 whichris cut away vto provide
for removal of therolls 25 and 26 from off the
shafts 24 and 24a and is also cut away to provide
an opening 62 through which the blanched nuts
are adapted to pass after being blanched by the
rolls 25 and‘ 26. This opening 62 is partially
closed by a brush 63 which is adjustably mounted
on the inside portion of the wall 60 by any suit
able means such as a bolt 64 mounted in wall 68
and Denetrating'a- vertically disposed slot 65 in
the top portion ‘of the brush; so that by vertical
adjustment of the brush, the amount of space
between‘thc ends'of the rolls 25 and 26 and
thebrush can be adjusted to regulate the rate
' of flow of nuts from the blanching compartment.
Immediately below the wall 60 is a transverse
member 66 from which rises a support 61 for
supporting one end of a rod 68, the other end of
the‘ rod being supported in the front wall of the
hopper I‘! which projects below the bottom of
the hopper, and surrounding the shafts 24 and
24a. This rod is disposed in close proximity to
the rolls 25 and 26, or close enough to prevent
nuts from falling between the rods and the sur
faces of the blanching rolls. Disposed between
the hopper l1 and the end wall 60, and for each
set of two of the rolls 25 and 26, there are dis
posed the vertical walls 10 and ‘H and between
which the nuts pass after passing through the
openings 18 in the walls of the hopper H. The
side walls 19 and ll have attheir lower ends
downwardly and inwardly projecting vanes 12
and 13 respectively which project into close prox
imity to the abrasive on therollers 25 and 28,
so that as the nuts are propelled against these
vanes, they are pushed upwardly and fall back
‘wardly towards a pointy above rod 68 which as
‘sists in the rolling or blanching operation. About
'midway between the walls of the hopper I‘! and
member 94 having a slot 92 therein, and upris
ing vanes 93 are disposed on the sheet metal
member 94 which guide the material which passes
over the screen portion 90 into the slot '92. The
fine meal and other ?ne ‘particles resulting from
broken nuts and the like in the blanching opera
tion pass through screen portion 90 and strike
against wall portion 8i and also fall directly
downwardly into a drawer or bin 95; Whereas,
the coarser particles such as whole peanuts
which might ?nd their‘ way onto the screen 90
or peanuts hearts or ‘other coarser particles
which will not pass through the screen 90 pass
onto the sheet metal portion 94 and are guided
by vanes 93 through the slot 92 and fall intoa
drawer or bin 96. The screen frame 86 is oscil
lated or vibrated very rapidly in order to assist
in the sieving operation, and also so as to accen
tuate the'travel of the chaff and coarser material
downwardly over the screen and to shake the ?ne
materials through the screen. This oscillation
or shaking of the screen frame 86 is'accomplished
by means of the screen frame on each side hav
ing projections 91 through which a right angle
portion of rods 98 project, and the other ends of
these rods are mounted on eccentric members 99
secured on shaft 106. The eccentric members
comprise a ring ID! to which the rods 98 are
secured at their other ends, and this ring llll is
mounted on an eccentric cam I02 ?xed on shaft
Hill. The rings "H can be con?ned on the ec
centric cams E02 by any suitable means such as
spider members H35 being secured on each side
of the eccentric cam I02 such as by a screw or
bolt I56. The shaft I0!) is driven by'any suitable
means suchv as by having ?xed thereon a sprocket
wheel H31 on which a sprocket chain IE8 is
mounted, said sprocket chain being also mounted
on a sprocket wheel I09 ?xed on the motor shaft
of motor I I0, which motor shaft also has mounted
thereon a suitable centrifugal fan, not shown,
‘which is disposed Within centrifugal fan casing
H5 which has an exhaust pipe H6‘ extending
therefrom and an intake pipe H11v connected
end walls 68, there are slidably disposed gate
thereto, said intakev pipe having a nozzle portion
members 14 which can be vertically adjusted for
H8 extending downwardly into close proximity
75
regulating the amount of nuts ‘which flow down
2,405,292,:
to slot 92 andbroad enough torcover the slot92,
to lift all chaff and light material :Which may‘
reach this point and expel it, so as to prevent
its falling into the bin 96; -The intake pipe ll‘! '
also has communicating therewith. a suction pipe
H9 which extends over to the front of the ma
6.
rolls'being mounted so as to slopegawayfrom the '
point where the .nuts are fed thereonto, a rod
disposed between the. rolls for preventing. nuts
from fallingbetween the rolls, side wall members
extending into close proximity to. the uppermost
portions of the rolls, downwardlyand inwardly
chine where its end is broadened to cover the
converging vane members forming a part of the
width of screen 80 and has a nozzle ‘I20 in .close
lower portion of the side wall members for de
proximity to the lower end of the screen 80 to
?ecting the nuts upwardly against the side walls
lift all chaff and other light material, such asv 10 asthey are moved towards the side walls by the
hulls and the like from the screen 80 before: such
rolls, said‘ rolls having an abrasive covering there
material has a chance to fall onto the conveyer
on,
a screen onto which the nuts are adapted to
belt 83 of the inspection table.
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fall after passing over the length of therolls,
In the drawings and speci?cation, there has
brush means for regulating the rate of flow of
been set forth a preferred embodimentJof'the 15
the nuts. from the'rolls onto said screen, an in-;
invention, and although speci?c terms are em
spection table disposed adjacent one end of said
ployed, they are used in a generic and descriptive
screen,sand onto which the nuts are adapted to
sense only and not for purposes of limitation, the fall,
the particles and pieces of nuts and‘some
scope of the invention being de?ned in the claims.
of the skin removed in theblanching operation
being adapted to fall throughsaid screen, a vi
1. In a nut blanching machine-having a hopper
brating frame disposed below said screen and
for holding the nuts, a pair of rolls disposedbe
having a screen portion in one end thereof onto
low and to one side of the hopperrand extending
which the particles and skins and the like pass
away from the hopper, means for imparting rota
ing through the ?rst screen are. adapted to fall,
I claim:
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tion to the rolls to cause their upper surfaces to 25 means for imparting vibration to? said screen
move away from eachother, means for feeding
frame, the ?nest particles being adapted‘ to fall
nuts from the hopper onto said rolls, said rolls
through thescreen and the screen frame-into
being mounted so as to slope away from the point
a suitable receptacle,the lower end of the screen
where the nuts are fed thereonto, a rod disposed“ > frame having a sheet'metal portion onto which
between the rolls for preventing nutsrfrom fall;
the particles and portions of nuts which do not
ing between the rolls, side wall members extend
pass through the screen and the screen frame"
ing into close proximity to theuppermost- por
are adapted to pass, a slot in said sheet metal
tions of the rolls, downwardly and inwardly con
portion through which said particles are adapted
verging vane members forming a part of the lower
to fall; and to-be received by'asuitable second
portion of the side wall members for de?ecting 35 container disposed below the opening, and means
the nuts upwardly against the side wallsas they
for imparting vibration to the screen frame for
are moved towards the ‘side-walls by the rolls,
assisting in the separation of the ?ne particles
said rolls having an abrasive covering thereon,‘ a‘
from the coarser particles and to move the‘coarser
screen onto which the nuts are adapted to fall
particles. downwardly over the sheet metal por
after passing over the length of the rolls, brush 40 tion and through said opening in the sheet metal
means for regulating the rate of flow of the nuts
portion, said rolls each- having a shaft, and a
from the rolls onto said screen, an inspection
cylindrical portion provided with head members
table disposed adjacent one end of said screen,
adapted to ?t over said shaft, and quick. detach
and onto which the nuts are adapted to fall, the
able means mounted on the shaft for holding the
particles and pieces of nuts and some of the skin" 4.1 rolls on said shaft.
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removed in the blanching operation being
3. In a nut blanching machine having a hopper
adapted to fall through said screen, a vibrating
for holding the nuts, a pair of rolls disposed
frame disposed below said screen and having a
below and to one side of the hopper andv ex
screen ‘portion in one end thereof onto which the
tending away from the hopper, means ‘for im
particles and skins and the like passing through 50 parting rotation to the rolls to cause their upper
the ?rst screen are adapted to fall, means for
surfaces to move away from :each other, means
imparting vibration to said screen frame, the
?nest particles being adapted to fall through the
for feeding nuts from the hopper onto said'rolls,
said rolls being mounted so as to slope away
screen and the screen frame into a suitable re
from the point where the nuts are fed thereonto,
ceptacle, the lower end of the screen frame hav 55 a rod disposed between the rolls for preventing
ing a sheet metal portion onto which the ‘par
nuts from falling between the rolls, side wall
ticles and portions of nuts‘ which do not pass
members extending into close proximity-to the
through the screen and the screen frame are
uppermost portions of the rolls, downwardly and
adapted to pass, ‘a slot in said sheet metal por
inwardly converging vane members formingv a
tion through which said particles are adapted
part of the lower portion of the side wall mem
to fall, and to be received by a suitable second‘
bers for de?ecting the nuts upwardly against the
container disposed below the opening, and means
side Walls as they are moved towards theside
for imparting vibration to the‘screen frame for
walls by the rolls, said rolls having an abrasive
assisting in the separation of the ?ne particles
covering thereon, a screen onto which the nuts
from ‘the "coarser particles and to move the 65 are adapted to, fall after. passing overithe length.
coarser particles downwardly over the sheet
of the rolls, brush means forregulating‘the rate
metal portion and through said opening in the'
sheet metal portion.
2. In a nut blanching machine having a hopper
for holding the nuts, a pair of rolls disposed below
and to one side of the hopper and extending
away from the hopper, means for imparting ro-v
tation to the rolls to cause their upper surfaces
to move away from each other, means for feed
ingnutsi from the hopper ontofrsaid. rolls," said;
4
of flow of the nuts from the rolls onto said screen, i
an inspection table'disposed adjacent one end of
said screen, and onto which the nuts are adapted
to fall, the particles and pieces of nuts and some
of the skin removed" in the blanching‘operation
being. adapted to fall through said screen, a vi-7
brating frame disposed below said screen and
having a screen portion in one end. thereof onto
which the='particles-land skins and the'like-‘lpa'sse
2,405,292
7
ing through the ?rst screen are adapted to fall,
means for imparting vibration to said screen
frame, the ?nest particles being adapted to fall
through the screen and the screen frame into a
suitable receptacle, the lower end of the screen
frame having a sheet metal portion onto which
the particles and portions of nuts which do not
8
where the nuts are fedthereonto, a rod disposed
between the rolls for preventing nuts from falling
between the rolls, sidewall members extending
into close proximity to the uppermost portions of
the rolls, said rolls having an abrasive covering
thereon, a screen onto which the nuts are adapted
to fall after passing over the length of the rolls,
means for regulating the rate of ?ow of the nuts
from the rolls onto said screen, an inspection
adapted to pass, a slot in said sheet metal por
tion through which said particles are adapted to 10 table disposed adjacent one end of said screen,
and onto which the nuts are adapted to fall, the
fall, and to be received by a suitable second con
particles
and pieces of nuts and some of the skin
tainer disposed below the opening, and means
removed in the blanching operation being adapt
for imparting vibration to the screen frame for
ed to fall through said screen, a vibrating frame
assisting in the separation of the fine particles
from the coarser particles and to move the coarser 15 disposed below said screen and having a screen
portion in one end thereof onto which the parti
particles downwardly over the sheet metal por
cles and skins and the like passing through the
tion and through said opening in the sheet metal
?rst screen are adapted to fall, means for im
portion, a suction fan having nozzles, one dis
parting vibration to said screen frame, the ?nest
posed over the ?rst-named screen and the other
disposed over the opening ‘in the sheet metal por 20 particles being adapted to fall through the screen
and the screen frame into a suitable receptacle,
tion for withdrawing skins and other light weight
the lower end of the screen frame having an im
particles away from said ?rst-named screen and
perforate portion onto which the particles and
said opening as the lighter products of blanching
portions of nuts which do not pass through the
coming from the rolls pass the nozzles.
screen and the screen frame are adapted to pass,
‘ 4. In a nut blanching machine having a hopper
a slot in said imperforate portion through which
for holding the nuts, a pair of rolls disposed be
said particles are adapted to fall, and to be re
low and to one side of the hopper and extending
ceived by a suitable second container disposed
away from the hopper, means for imparting ro
below the opening, and means for imparting vi
tation to the rolls to cause their upper surfaces
to move away from each other, means for feed- , bration to the screen frame for assisting in the
separation of the ?ne particles from the coarser
‘ing nuts from the hopper onto vsaid rolls, said
particles, and to move the coarser particles down
rolls being mounted so as to slope away from the
wardly over the imperforate portion and through
point where the nuts are fed thereonto, a rod
said opening in the imperforate portion, said.
disposed between the rolls for preventing nuts
rolls each having a shaft, and a cylindrical por
from falling between the rolls, ‘sidewall members
tion provided with head members adapted to ?t
extending into close proximity to the vuppermost
over said shaft, and quick detachable means
portions of the rolls, said rolls having an abrasive
mounted on the shaft for holding the rolls on
covering thereon, a screen onto which the nuts
said shaft.
are adapted to fall after passing over the length
6. In a nut blanching machine having a hopper
of the rolls, means for regulating the rate of ?ow ‘ill
for holding the nuts, a pair of rolls disposed below
of the nuts from the rolls onto said screen, an
and to, one side of the hopper and extending away
inspection table disposed adjacent one end of said
from the hopper, means for imparting rotation to
screen, and onto which the nuts are adapted to
the rolls to cause their upper surfaces to move
fall, the particles and pieces of nuts and some of
away from each other, means for feeding nuts
the skin removed in the blanching operation be
from the hopper onto said rolls, said rolls being
ing adapted to fall through said screen, a vibrat
mounted so as to slope away from the point where
ing frame disposed below said screen and having
the nuts are fed thereonto, a rod disposed be
a screen portion in one end thereof onto which
tween the rolls for preventing nuts from falling
the particles and skins and , the like passing
through the ?rst screen are adapted to fall, 50 betwveen the rolls, side wall members extending
into close proximity to the uppermost portions
means for imparting vibration to said screen
of the rolls, said rolls having an abrasive cover
frame, the ?nest particles being adapted to fall
pass through the screen and the screen frame are
through the screen and the screen frame into a
ing thereon, a screen onto which the nuts are
adapted to fall after passing over the length of
frame having an imperforate portion onto which 55 the rolls, means for regulating the rate of ?ow
of the nuts from the rolls onto said screen, an
the particles and portions of nuts which do not
inspection table disposed adjacent one end of said
pass through the screen and the screen frame are
screen, and onto which the nuts are adapted to
adapted to pass, a slot in said imperforate por
fall, the particles and pieces of nuts and some
tion through which said particles are adapted to
of the skin removed in the blanching operation
fall, and to be received by a suitable second con 60 being adapted to fall through said screen, a vi
tainer disposed below the opening, and means for
brating frame disposed below said screen and
suitable receptacle, the lower end of the screen
imparting vibration to the screen frame for as
having a screen portion in one end thereof onto
which the particles and skins and the like pass
particles downwardly over the imperforate por~ 65 ing through the ?rst screen are adapted to fall,
means for imparting vibration to said screen
tion and through said opening in the imperforate
sframe, the ?nest particles being adapted to fall
sisting in the separation of the ?ne particles from
the coarser particles and to ‘move the coarser
portion.
5'. In a nut blanching machine having a hopper
for holding the nuts, a pair of rolls disposed below
and to one side of the hopper and extending away
from the hopper, means for imparting rotation
to the rolls to cause their upper surfaces to move
away from each other, means for feeding nuts
through the screen and the screen frame into a
suitable receptacle, the lower end of the screen
frame having a sheet portion onto which the
particles and portions of nuts which do not pass
through the screen and the screen frame are
adapted to pass, a slot in said sheet portion
through
which said particles are adapted to fall,
from, the hopper onto said rolls, said rolls being
mounted so, as to slope away ‘from-the point 76 and to be received by a suitable second container
2,405,292
disposed below the opening, and means'for im
parting vibration to the screen frame for assist
ing in the separation of the ?ne particles from
the coarser particles and. to move the coarser
10
?rst-named screen and the other disposed over
the opening in the sheet portion for withdrawing
skins and other light weight particles away from
said ?rst-named screen and said opening as the
particles downwardly over the sheet portion and 5 lighter
products of blanching coming from the
through said opening in the sheet portion, a suc
rolls pass the nozzles.
tion fan having nozzles, one disposed over the
HARVEY P. CURLEE.
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