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July 18, 1950
Filed May 18, 1946
3 Sheets-Sheet 1
. „__
//IIPÍ-1 Il
[email protected]
_ __
1‘8, 1950
Filed May 18, 1946
5 Sheets-Sheet. 2
.Zal/LJ/Z Wd] ace,
July 1.8, 1950
Filed May 18, 1946
3 Sheets-Sheet 3
Patented July 18, y 1950
‘David.A. Wallace, Grosse Pointe Farms, and'Ray
mond E. Hewlett, Detroit, 'Mich., >assign'ors lto
(Hewlett Manufacturing Company, Detroit,
Mich., a corporation of`Michigan
Application Mayis, 1946.,seria1`1N,0.6io,.7sz .
This invention relates to apparatus for ex
tracting vjuices from fruits.
'It is ran object .0f this invention to provide
an apparatus for this purpose that is simple in
construction and adapted to seize the fruit and
transport it to cutting means which severs the
fruit so that it is in its most advantageous .con
power drive could also be substituted.
' 'C
_A worm 20 ‘is keyed to rotor` .shaft ’|‘9 and
adapted >to mesh with a worm wheel 2| Vkeyed?to
a shaft 22 which is rotatably mounted L'in 'hous
dition for_juice extraction. >`The fruit segments
are then crushed by ‘forced movement ‘through a
passage of decreasing ‘height andthe waste :ele
ments ejected.
Itis to be understoodhowever "that if desired ‘a
cran-k could 'be 1substituted for ¿motor `|18 for
manual operation of `the device. Other forms of
ing l0. A pair of symmetrically disposedpinions
23 and 24 arekeyed >to parallel shafts 25 and 26
10 which are rotatably mounted in housing I0 ¿paré
allel to shaft 22. Means to cause the rotation
A `further object is ‘to _provide a device having
of shaft 22 to drive pinions 23 and 24 in oppo
two compartments substantially sealed Vagainst
site directions at similar speeds are provided.
the _passage of liquid therebetween. The `iirst
A sma11~pinion21 is keyed to shaft 22 and >adapted
compartment contains the fruit transporting, 15 to mesh with Vand drive pinion 23. A pinion -23
slicing and squeezing apparatus andthe Vsecond
is keyed to a shaft 29 rotatably mounted in ‘hous
compartment contains `the driving mechanism
ing l0 parallel to shafts 22, 25 and 26. ‘Pinion
for said apparatus. y>l.'«‘1ushing `out Vof the first
28 is adapted to mesh with and drive pinion '24.
compartment with water vfor reasons of cleanli
Thus, for example, in Figure 3 if Apinion 124 ro-„
ness _is thus possible.
tates in a countercloc‘kwise direction its partner;
In Athe drawings:
pinion 23V, will be rotated in a clockwise direction;
Figure -1 is -an elevational -view >of the device.
A pair of cylindrical rollers 3|) and 3| positioned
in compartment I6 are also "keyed to shafts 25
of Figure 1.
and 26. The >'function to 'be performedby rollers
‘Figure '3 is a vertical 'section on vthe line ¿3_3 25 30 Vand 3| will be described in more detail herein.
‘Figure >2 is a >vertical section on the 1-ine2-s2>
of Figure 1.
v'Figure 4 is‘ a vertical section lon lthe `line 4-4
of »Figure 3.
A housing kI0 forms 'the `case within which ‘the
A “knife |32 is V„positioned transversely of com-Í
partment IB and is reciprocated b_y means to be
described yherein. The wall l5 of housing |0`has
cylindrical hole 33 formed'therein on an axis par-v
apparatus is retained. Housing I0 contains anv 30 allel -to the knife 32. The cover plate ‘3‘4 has 'an
inlet orifice 'Il in its upper surface. A discharge
extension 35 provided with» a cylindrical recess
orifice Vl2 is -`provided-in ‘the lower portion of one
3B aligned-with hole 33. A shaft 31 is rotatably
of the `side walls.> A conventional spout I3 `is
and slidably mounted in said hole and ‘recess
preferably connected to'housing I0 adjacent ori
‘('see Figure 4). A pinion 38 is keyed at '39 to
fice I2. Fruit Venters ‘the device through `orifice 35 shaft 31 but the keyway permits relative axial
|| `and juices are discharged ¿through spout l:|3.
movement. Pinion 38 meshes with and is driven
An open top drawer y|‘~4 is 4slida‘bly mounted in
by >pinion 28. Shaft 31 fhas a cam slot 40 formed
the «base of housing 'Hl and fis adapted to'receive
around 'its periphery. ‘Screw `il! secured to hous
the substantially solid 'waste Yelements >'such fas
ing lWall l5 ‘has a `smooth cylindrical end portion
rind and seeds.
40 42 adapted> to ride in cam` slot 40. A link 43:15V
Thefhousing ||J~is Àdivided:vertically by >wall t5 ‘
into two lcompartments |‘6-‘and `1|.'l. A liquid seal
between #the compartments is preferablyprovided
by Awall l5. ACompartment *t6 houses the’mezchani
fastened to knife 32 and rotatably mounted ‘on
shaft 31 co-axially therewith at >¿I4 but restrained
against relative axial movement 'by slots 45 and
45 in link 43 and shaft 31 and snap ring v4‘1‘.
cal .elements -which come into direct :contact awith 45 Knife =32 is slida'bly 'mounted ‘but restrained
the fruit. The orifices |i| and =|2 lead into @and
out `of 4compartment ~-|1íi andthe path of travel
of the fruit is wholly :contained in compartment
i6. Compartment I-Fi houses <the :driving tmeans
for Athemechanica'l elements of compartment |73. 50
'The vsource --of :power for :the operation `of the
device is preferably an electric motor 1'8 'which
is ‘mounted on housing im l'with its rotor vairis
in a .horizontal plane and >which ‘has v‘the `rotor
against‘rotation by means to be describedherein.'
In operation when pinion 28 rotates pinion 138
shaft 31 is rotated. This rotation is >not trans-`
mitted to knife Y32 or link 43. Screw 4| riding
in cam Vslot 40 of rotating shaft 31 induces `re
ciprocation of shaft 31, link ~‘i3 and knife ‘32.A “pair of fingers 5|) and 5| having concave
plates 52 land 53 aiiixed vto their lower surfaces
is adapted to'receive an entering fruit and force
shaft V|î9 fthereof penetrating compartment ïlil. 55 Vit into :engagement with the knife l32 in a man
ner to be described herein. Finger 50 is keyed
to a shaft 54 and finger 5| is keyed to a shaft
55. Means have been provided to oscillate the
fingers through a limited arc so that they may
repeat their function as additional fruit enters
housing I0. Arms 56 and 51 are also keyed to
shafts 54 and 55. A pair'of eccentrics 58 and59
fare keyed to shafts 25 and 26 and rotated there
The eccentrics have continuous inverse -
cam slots 60 and 6| formed in flat surfaces there
of. Connecting rods 62 and 63 are» rotatably
mounted on arms 56 and 51 at 64 and 65 and
have on the opposite ends thereof pins 66 and 61
adapted to ride in slots 69 and 6|. The arms
62 and B3 are provided with longitudinal slots‘68 415
and 69. A pair of pins 10 and 1| mounted on
plates 12 and 13 fastened to wall l5 of housing
l0 cooperate with slots 68 and 69 to form therfulcrums about which arms 62 and 83 oscillate.
In operation kthe rotation of shafts 25 and~2v6
through eccentrics 58 and 59, .camslots 60 and 5|,
plurality of pointed, spike-like protrusions. As
the fruit segment is moved through the chamber
82 it is progressively iiattened and crushed and
the rind is finally squeezed between the roller and
the lower arcuate part of the adjacent sieve.
'I'he'drawervlll has been provided as a recep
tacle for the -'accumulation of waste,l including
rinds and seeds. When the rind is finally
squeezed between the roller and the lower arcu
ate part of the adjacent sieve it drops by gravity
through passage 84 into drawer I4. Protrusions
85 on the interior surface of the walls of housing
I0 are disposedv in close relation to rollers 30 and
3| so that if any fruit segments fail to drop by
gravity into passage 84 due to the fact that they
have been impaled on the protruding elements 83
the segments will engage protrusion 85 and be
forced off elements 83 to drop into passage 34 and
drawer I4. Drawer Ui may be emptied periodi
We claim:
l. In a device for. extracting juices from fruits
arms 62 and 63, arms 5G and 51 and shafts 54
the combination of means to sever. said fruity
and 55 cause iingers50 and 5| `to oscillate through
into segments, meansv to receive each fruit'se'g'vY
the positions shown in broken lines in Figure 2
and back to their upper position to repeat the 25 ment from said first means and extractjuice
therefrom, and a pair of elements adapted to
oscillate from a first fruit receiving position toa
Referring to Figures 1 and 2 the apparatus in
second position in which the fruit is engaged
compartment IS which directly engages the fruit
will be described. A pair of -depending guide elee '1 by saidseveringmeans and back to said irirst
ments 15 and 18 fastened to housing I8 on oppo 30 position to receive additional fruit, saidl pair of
elements being so constructed and arrangedfas
site sides of orifice || guide the entering fruit 11
to present a space therebetween through which
so that it will be received by the concave-plates
a fruit may pass when the elements are in said
52 and 53 of fingers 50 and 5| which position the
fruit for engagement by fingers 50 andv 5|. Plates f: first position and to cooperate to approacheach
52 and 53 relinquish the fruitbysliding to the 35 other behind the fruit and push it towardsaid
severing means as an incident to their movementy
upper portion thereof as the fingers move down
ward. 1 Disposed transversely of the path thus
assumed by the fruitlis the reciprocating knife
32 which severs it into two hemispherical seg
ments. A spreader, generally designated bythe
numeral 18 is located generally below the knife
3_2 and comprises a pair of intersecting concave
sieve elements 19 which are adaptedfto separate
pulp and other substantially solid matter- from
to said second position.
2. In a devicefor extracting juices from fruits
the combination of means to sever fruit into seg
ments, means to receive each fruit'segment from
said first means and extract juice therefrom, a
pair of fingers rotatably mounted upon parallel
axes, said fingers being normally inclined lup.~wardly and vtoward each other, and meansïto
rotate said fingers downward through a limited
arc whereby they engage the upper surface of
through openings 80 therein` The spaced lower
said fruit and as they rotate force said fruit into
edges of the sieves are connected by an inclined
engagement with said severing means.
trough 8| mounted below sieves 19. Trough 8|
3. In a fruit juice extracting device they com
is adapted to discharge juices from »the orifice l2
provided in housing l0. The spreader` 18 is pref 50 bination of a pair inverse cam elements, means
to rotate said cam elements in opposite directions,
erably formed with a slot 90 extending trans
fruit severing means, fruit crushing means, a
versely thereof along the line of intersection of
extracted juices by permitting juice to drain
the‘concave sieve elements 19'.
slidably mounted in slot 9U.
The Iknife'32 is
- '
> ~
pair of inclined fingers adapted to engage a fruit
and force it into contact with said severing means,
The means which cooperates with sieves 19 to 55 and means to cause rotation of said cam elements
to oscillate said'ñngers from a first position to a
extract juice from the hemispherical fruit seg
position relatively closer to said severing means.
ments is cylindrical rollers 30 and 3|. The rela
4. In a device for extracting juices from fruit
tion between the‘rollers and sieves vis important
a knife adapted to cut fruit into segments, means
and the concave ‘sieve elements 19 referred to
above are supported by trough 8| `and the‘lower 80 to reciprocate said knife, means to receive each
fruit segment from said knife and extract juice
end portion of each sieve is arcuately curved be
therefrom, a pair of fingers rotatably mount-ed
neath -one of the rollers 39 and 3|., respectively.
upon parallel axes and adapted to oscillate be
Each sieve 19 is so shaped and disposed as to
tween iirst and second positions, and means to
form a chamber 82 of gradually decreasing width
oscillate said fingers, the ends of said fingers
between it and the roller with which-` it is
opposite said axes having considerable space
mounted. The fruit‘segments are lreceived from
therebetween in said first position wherebßr a
knife 32 by rollers 30 and 3| andfmoved into
fruit may pass between said fingers in prepara
chamber 82 and over the face of vsieve 19. The
tion for engagement by said fingers on the surface
outer periphery of rollers 30 and 3| are provided
with sharp protruding elements 83 which are 70 thereof farthest from said knife when said
fingers are oscillated, said ends of said-fingers
adapted to iirmly engage the fruit. These ele
having relatively little space therebetween in in
ments have been illustrated as longitudinal knife
termediate positions and said second position be
edges spaced circumferentially about the cylin
ing adjacent said knife so that the fruit is` forced
drical rollers although it is to be understood that
they could have other forms as, for example, a 75 over said knife.
5. In a device for extracting juices from fruits
the combination of’concave sieve members inter
secting in a straight line, a knife slidably mounted
adjacent said line, means to reciprocate said
knife, a pair of cylindrical rollers rotatably 5
ber remote from said line, means to rotate said
rollers whereby fruit segments are crushed be
tween said rollers and said sieve members, and
means adapted to oscillate from a ñrst fruit re
ceiving position to a, second position in which
the fruit is severed into segments by said knife
mounted on their longitudinal axes, said axes be
ing parallel to said line, each of said rollers be
and the segments engaged by said rollers.
ing positioned adjacent one of said sieve members
and positioned relatively distant from its associ-v
ated sieve member in the Vicinity of said line and 10
relatively close to its associated sieve member
near the extremity of the associated sieve member
The following references are of record in the
remote from said line, means to rotate said rollers
file of this patent:
whereby fruit segments are crushed between said
rollers and said sieve members, and means to de~ 15
liver fruit to said knife and the segments to said
Blatz ____________ __ Mar. 21, 1899
6. In a device for extracting juices from fruits
Gregory __________ __ July 12, 1904
the combination of concave sieve members inter
Day ______________ __ Nov. 2, 1915
secting in a straight line,` a knife slidably mounted 20 1,620,551
Hughes __________ __ Mar. 8, 1927
adjacent said line, vmeans to reciprocate said
Walker __' ________ __ Jan. 12, 1937
knife, a pair of cylindrical rollers rotatably
Segovia __________ __ Apr. 27, 1937
mounted on their longitudinal axes, said axes
Clark ____ ________ __ June 18, 1940
being parallel to said line, each of said rollers'
being positioned adjacent one of said sieve mem 25
bers and positioned relatively distant from its as
sociated sieve member in the vicinity of said line
and relatively close to its associated sieve member
near the extremity of the associated sieve mem
Fry _____` _______ __ Aug. 20, 1940
McKinnis ________ __ Jan. 13, _1942
Nelson ____________ Feb. 16, 1943
ì 2,382,620
Smith ____________ __ Oct. 19, 1943
Eastman ________ __ Aug. 14, 1945
Eastman ________ __ Aug. 16, 1949
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