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Патент USA US2281258

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April 28, 1942.
w. H. BENTON
2,28l,258
~
FOOD GRINDER PLATE
Filed Sept. 26, 1940
w. H. MWN
4.
Patented Apr. 28, 1942
¿zeigte
2,281,258
FO’ÚD GRÍNDER PLATE
Wade H. Benton, Fort Worth, Tex.
Application September 26, 1940, Serial No. 358,546
9 Claims.
This invention pertains to food choppers,
sometimes termed meat grinders, and is espe
cially directed to the plate Which cooperates With
the cutter to comminute the food and to dis
charge it from the chopper in comminuted form.
In conventional practice the cutter and the
discharge plate are rotatable relative to each
other and are disposed in face to face contact
relationship for the cutter blade to Wipe across
the contact surface of the discharge plate. Ap
ertures in the plate, into which the meat or
other material is'projected under pressure by the
feed screw, cooperate With the cutter to com
_minute the food to a degree of ñneness deter
mined by the size of the holes.
The present invention is directed to a dis
charge plate which is readily adjustable to com
minute food to more than one predetermined
degree of íineness. It consists of a discharge
plate comprising a primary member and a com
panion piece, the primary member providing ap
ertures of a size larger than the conventional
apertures for nne comminution, which cooper
ate With the cutter to comminute food to a
coarse degree. The companion piece comprises
inserts positionable selectively into and out of
the apertures of the primary member to regu
late the degree of ñneness of food comminution.
The discharge plate, as in conventional prac
(Ci. 14S-_189)
purpose of fine comminution the primary mem
ber is provided with apertures through its sur
face of contact which are of a smaller size than
the apertures which receive the inserts of the
companion piece. The inserts of the companion
piece are also provided with apertures through
their surfaces of contact similar to the smaller
apertures in the primary member, which coop
erate with the cutter together With the smaller
apertures in the primary member during com
minution of a finer degree.
The discharge plate is provided With simple
adjusting mechanism between primary member
and companion piece which facilitates the ready
positioning of the inserts into and out of the
larger apertures of the primary member to en
able quick and easy conversion of the chopper
for ñne and coarse comminution of the food.
By this means the food chopper can be readily
adjusted for coarse comminution of the food, and
then quickly and easily adjusted for comminut
ing the food a second time to a finer degree.`
The nature of the invention and its several
advantages will be readily appreciated from the
» preferred practical embodiment of the inven
tion shown in the accompanying drawing in
which
Figure l is an end view of a food chopper em
bodying the invention adjusted for ñne commin
tice, is circular, the primary member and com- ç' ‘ ution, certain parts being removed for clearness
panion piece of the present invention each being
of illustration;
circular and concentrically disposed with refer
Figure 2 is a side elevation of the food chopper
ence to each other and with reference to the
partly in longitudinal cross section;
axis of relative rotation between the cutter and
Figure 3 is a cross sectional elevation taken
discharge plate. The primary member and com- ;'
panion piece are movable relative to each other
on line 3_3 of Figure _2;
Figure 4 is an end elevation similar to Figure
axially and circumferentially for adjustment to
l, embodying the invention adjusted for coarse
position the inserts of the companion piece se
comminution of food, and with unimportant
lectively into and out of the apertures of the
parts broken away;
primary member. When the inserts are posi- ~Figure 5 is a cross sectional elevation taken
tioned in the apertures of the primary member,
on line 5-5 of Figure'fl; and
the discharge plate is adjusted for ñne comminu
Figures 6 and 7 are companion perspective
tion. When the inserts are positioned out of
views of the principal elements of the discharge
the apertures of the primary member, the dis
charge plate is adjusted for coarse comminution f
of the food.
The primary member of the discharge plate
provides a surface of contact against which the
cutter operates. The inserts when positioned in
the apertures of the primary member provide
surfaces of contact positioned in the plane of
the surface of contact of the primary member,
both surfaces of contact of the primary member
and companion piece cooperating with the cutter
to comminute the food to a ñne degree.
plate of the invention.
Viewing the drawing, especially 'as illustrated
in Figures l and 2, the invention pertains to a
food Vchopper which, according to conventional
practice, comprises a hopper Il, food feeding
passage I2, feed screw I3, and the support mem
ber Id. The support member I4 is shown broken
away and may provide any suitable and con
ventional construction for attaching the food
chopper to a table or other base.
feed screw I3 rotates concentrically with
For the 5b theThe
food passage and is provided with the spiral
2,281,258
2
food advancing fin I5 which operates to trans
port the food from the hopper II along th'e food
passage I2 under pressure into engagement with
the cooperating cutter I6 and discharge plate
indicated generally at I1. The feed screw I3 is
bearinged at I8 at one end of the food passage
I2, the shaft of the feed screw projecting at I9
outside the housing of the food passage. At
33 operates against the compression of the spring
31 to press the primary member 28 and companion
piece 29 together with the inserts 32 positioned
in the apertures 3|. This positions the parts as
illustrated in Figures 1, 2 and 3. The companion
piece 29 is provided With stu‘faces of contact 39
on the faces of the inserts 32 which are posi
tioned in the plane of the surface of contact 34
of the primary member 23 when the inserts are
tached to the shaft projection I9, as by winged
nui'J 20, is the handle 2| or other suitable means
for rotating the shaft I9 and the fed screw I3
positioned in the apertures 3| as illustrated in
Figures 1, 2 and 3. In this position the surface
of contact 34 and the surface of contact 39 to
gether cooperate with the cutter I6, the blades
integral therewith.
At its opposite end the feed screw I3 is pro
35 of the cutter wiping across the composite sur
face of contact 34 and 39.
Apertures 4I in the primary member 28, and
similar apertures 42 in the inserts 32 of the com
vided with the shaft projection 22 through the
discharge plate I1, which discharge plate is With
held against rotation by the lug 23 fitting in the
notch 24 of the plate.
In this manner the cutter
panion piece 29, receive the food projected into
rotates relative to the discharge plate which is
held stationary, although it will be understood
that the invention is applicable to the so-called
stationary cutter type of food chopper. Inwardly
toward the feed screw I3 the shaft projection 22
is provided with the squared shank 25 which fits
the companion hole 29 of the cutter I6, and re
them by the force exerted by the feed screw I3,
the apertures 4I and 42 cooperating with the
cutter I6 to comminute the food to a ñne degree
when the parts are in position, as illustrated in
Figures 1, 2 and 3.
The primary member 23 is provided with the
lug 43 and the companion piece 29 is provided
quires the cutter to rotate with the feed screw "
with the cooperating elongated notch 44 with
I3, with the shaft projection 22 bearinged in the
limiting stops for limiting the relative circum
discharge plate I1 as illustrated in Figures 2
ferential movement between the primary member
and 5.
28 and companion piece 29 in the two positions
The discharge plate I1 comprises the primary
of
adjustment. The stops of the notch 44 enable
member 28, Figure 6, and the companion piece a ready adjustment for projecting the inserts 32
29, Figure '1, both pieces being circular as shown
into the apertures 3I for ñne comminution and
and concentrically disposed with relationship to
for pressing the apertures 3I and 33 of the pri
each other to provide a discharge plate which is
mary member 29 and companion piece 29 re
circular as in conventional practice. The pri
spectively in registry with each other in adjust
mary member is provided with apertures 3I which ~
ment for coarse comminution.
The operation of the device is obvious from
the showing. When the food chopper is to be
adjusted for coarse comminution of the food,
are relatively large. The companion piece 29 is
provided with inserts 32, Figure '1, which in the
disclosed embodiment of the invention are of a
size and shape to ñll the apertures 3 I. The com
panion piece 29 is also provided with apertures 1
33 between the inserts 32 which register with the
retraction of the holding band 38 will permit the
spring 31 to press the primary member 28 and
companion piece 29 apart axially of each other
until the inserts have receded from position in
the apertures 3l. The companion piece 29 can
apertures 3| of the primary member when the
food chopper is adjusted for coarse comminution.
The primary member and companion piece are
movable axially relative to each other on the shaft . then be rotated relative to the primary member
28 on the axis of the shaft projection 22 until
projection 22, Figure 2, and are thereupon mov
the lug 43 and the stop of the notch 44 positions
able circumferentially relative to each other into
the apertures 3l and 33 in registry with each
the position illustrated in Figure 4, with the aper
other. A slight turning of the holding band 33
tures 3I of the primary member and the aper
will cause the flange 49 to press the primary
tures 33 of the companion piece in registry with
member 28 and companion piece 29 together, in
each other.
the position of Figures 4 and 5, and the chopper
In this position of adjustment, as illustrated in
is in adjustment for coarse comminution of the
Figures 4 and 5, the food is projected by feed
food. If it is desired to comminute the food to
screw I3 into the apertures 3| to be comminuted
a ñne degree, either before or after it has been
to a coarse degree by the cutter I6 rotating rela 55 comminuted coarsely according to the herein
tive to the discharge plate. The discharge plate
before described adjustment, the holding band
comprising the primary member 28 provides the
38 can be retracted slightly to permit relative
circular surface of contact 34 across which the
rotation between the primary member 28 and
blades 35 of the cutter I6 wipe as they rotate
the companion piece 29 until the lug 43 and the
relative to the discharge plate I1, thus cutting 60 stop of the elongated notch 44 engage each other
the food to a size determined by the size of the
to position the inserts 32 opposite the apertures
apertures 3 I.
3I . The holding band 38 can then be tightened
Between the primary member 28 and com
to project the inserts 32 into the apertures 3|
panion piece 29, enclosed in the housing 36, is
until the primary member and companion piece
the compression coil spring 31 surrounding the
are pressed tightly together, as illustrated in
shaft projection 22. The spring 31 tends to press
Figures 1, 2 and 3. In this position the contact
the primary member and companion piece apart
axially relative to each other. The holding band.
3S, is screw threaded to the disc enclosing ilared
end 21 of the food feeding passage I2, and is
provided with the flange 49 which overlaps the
edge of the discharge plate I1 to hold the parts
in operative position as illustrated in the draw
ing. Figures 1 and 4 show the band 38 removed,
for clearness of illustration. The holding band
surfaces 34 and 39 are in the same plane and
the smaller apertures 4I and 42 are in position
to cooperate with the cutter I6 to comminute
the food to a fine degree.
If the food chopper becomes clogged during
its use for ñne comminution, the chopper can
be adjusted for coarse comminution and a small
*
quantity of food run through the chopper to
2,281,258
correct the clogged condition.
lt will be noted
that the adjustment for íi-ne and'coarse com
minution is especially simple and readily ac
complished.
The» embodiment illustrated in the drawing
presents one practical application of the inven-l
tion. Obviously the disclosure will suggest a
number of modifications within the spirit of the
invention and the invention is not limited to
the embodiment shown. The scope of the in
vention is determined by the accompanying
claims.A
What I claim is:
l. A food chopper comprising, a discharge
plate and a» cutter rotatable relative to and in
contact with each other cooperatively to com
minute food, the discharge plate comprising a
primary member and a companion piece, the
primary member providing a surface of> contact
for the cutter with apertures therethrough co- "
operating with the cutter for coarse comminu
tion of the food, the companion piece compris~
ing inserts pcsitionable in the apertures of the
3
tact surfaces of the primary member andcom
panion piece smaller than the ñrst named aper
tures cooperating with the cutter for ñner com~
minution of the food, and means to move the
primary member and companion piece axially
and circumferentially relative to each other for
adjustment to position the inserts (selectively
into and out of the first named apertures to
regulate the degree of ñneness of food com
minution.
4. A food chopper comprising a discharge
plate and a cutter rotatable relative to and in
contact with each other cooperatively to com
minute food, the discharge plate comprising a
primary member and a companion piece, the
primary member providing a surface of contact
for the cutter with apertures therethrough co
operating With the cutter for coarse comminu
tion of the food, the companion piece comprising
inserts positionable in and ñtted to fill the aper
tures of the primary member, the inserts each
providing a surface of contact for the cutter
positioned in the plane of the surface of contact
primary member, the inserts each providing a
of the primary member when the inserts are
surface of contact for the cutter positioned in -
positioned in the apertures, additional apertures
through the contact surfaces of the primary
member and companion piece smaller than the
ñrst named apertures cooperating With the cut
the plane of the surface of Contact of the
primary member when the inserts are positioned
in the apertures, additional apertures- through
the contact surfaces oi the primary member and
ter for ñner comminution of the food, spring
companion piece smaller than the first named I means normally tending to spread the primary
apertures cooperating with the cutter for finer
member and companion piece apart, and means
comminution of the food, and means to adjust
to adjust the primary member and companion
the primary member and companion piece with
piece with the inserts selectively positioned into
the inserts selectively positioned into and out of
and out of the first-named apertures to regulate
the iirst named apertures to regulate the degree «3~s.: the degree of ñneness of food comminution.
of ñneness of food comminution.
5. A food chopper comprising a circular dis~«
2. A- food chopper comprising, a discharge
charge plate and a cutter rotatable concentrically
plate and a cutter rotatable relative to and in
relative to and in contact with each other co-~
contact With each other cooperatively to com
operatively to comminute food, the discharge
minute food, the discharge lplate comprising a e plate comprising a primary member and a con~
primary member and a companion pie-ce, the
primary member providing a surface of contact
for the cutter with apertures therethrough co»
operating with the cutter for coarse comminu
centric companion piece, the primary member
providing a surface of Contact for the cutter
with apertures therethrough cooperating with
the cutter for coarse comminution of the food.,
tion of the food, the companion piece comprising
the companion piece comprising inserts posi
inserts positionable in and ñtted to ñll the apen
tures of the primary member, the inserts each
providing a surface of contact for the cutter posi
tioned in the plane of the surface of contact of
the primary member When the inserts are posi~ ê
tionable in and iitted to iill the apertures of the
primary member, the inserts each providing a
surface of contact for the cutter positioned in
tioned in the apertures, additional apertures
through the contact surfaces of the primary
member and companion piece smaller than the
ñrst named apertures cooperating with the cutter
the plane of the surface oi contact of the primary
member when the inserts are positioned in the
apertures, additional apertures through the con
tact surfaces of the primary member and com
panion piece smaller than the ñrstmamed aper
tures cooperating with the cutter for ñner com
for ñner comminution of the food, and means :f ' minution of the food, spring means normally
to adjust the primary member and companion
tending to spread the primary member and com
piece with the inserts selectively positioned into
panion piece apart, and means to move the
and out of the first named apertures to regulate
primary member and companion piece axially
the degree of ñneness of food comminution.
and circumferentially relative to each other for
3. A food chopper comprising, a circular dis 60 adjustment to position the inserts selectively into
charge plate and a cutter rotatable concentri
and out of the first-named apertures to regulate
cally relative to and in contact with each other
the degree of ñneness of food comminution.
cooperatively to comminute food, the discharge
6. A food chopper comprising a discharge
plate comprising a primary member and a con
centric companion piece, the primary member
providing a surface of contact for the cutter
plate and a cutter rotatable relative to and in
Contact with each other cooperatively to com
minute food, the discharge plate comprising a
primary member and a companion piece, the
the cutter for coarse comminution of the food,
primary member providing a surface of contact
the companion piece comprising inserts posi
for the cutter with apertures therethrough co
tionable in and ñtted to ñll the apertures of the 70 operating with the cutter for coarse comminu
primary member, the inserts each providing a
tion of the food, the companion piece comprising
surface of contact for the cutter positioned in
inserts positionable in the apertures of the
the plane of the surface of -contact of the primary
primary member, the inserts each providing a
member When the inserts are positioned in the
surface of contact for the cutter positioned in
apertures, additional apertures through the con
the plane of the surface of contact of the
with apertures therethrough cooperating with
4
2,281,258
primary member when the inserts are positioned
in the apertures, additional apertures through
the contact surfaces of the primary member and
companion piece smaller than the first-named
apertures cooperating with the cutter for finer
comminution of the food, spring means normally
tending to spread the primary member and com
panion piece apart, and means to adjust the
primary member and companion piece with the
inserts selectively positioned into and out of the
ñrst-named apertures to regulate the degree of
ñneness of food comminution.
'7. A food chopper comprising a discharge
plate and a cutter rotatable relative to and in
contact with each other cooperatively to com
minute food, the discharge plate comprising a
primary member and a companion piece rela
tively movable toward and from each other and
rotatably with relation to each other, the pri
mary member providing a surface of contact
for the cutter with apertures therethrough co
operating with the cutter for coarse comminu
tion of t -e food, the companion piece providingr
a surface of contact comprising inserts posi
tionable in the apertures of the primary member
to regulate the degree of coarse coinminution
of the food and said surfaces of the primary
member and companion piece being provided
with additional apertures smaller than the first
named apertures cooperating with the cutter for
ñner comminution of the food, and means for
axially adjusting the primary member and com
paníon piece when the inserts are in line with
of the food, the companion piece comprising in
serts positionable in the apertures of the pri
mary member to regulate the degree of coarse
comminution of the food and said surfaces of
the primary member and companion piece being
provided With-additional apertures smaller than
the first-named apertures cooperating with the
the cutter for i'lner comminution of the food,
the inserts each providing a surface of contact
for the cutter positioned in the plane of the sur
face of contact of the primary member when
the inserts are positioned in the apertures, spring
means tending to spread the primary member
and companion piece apart, and means for
axially adjusting the primary member and com
paníon piece when the inserts are in alinement
with the apertures to move said inserts into and
out of the apertures and for rotatably adjusting
the primary member and companion piece with
relation to each other to move the inserts into
and out of alinement with the apertures.
9. A food chopper comprising a circular dis
charge plate and a cutter rotatable concentri
cally relative to and in contact with each other
cooperatively to comminute food, the discharge
plate comprising a primary member and a con
centric companion piece axially adjustable to
Ward and from each other and rotatably with
respect to each other, the primary member pro
viding a surface of contact for the cutter With
apertures therethrough cooperating with the
cutter for coarse comminution of the food, the
companion piece comprising inserts positionable
of the apertures and for rotatably adjusting
the primary member and companion piece with
in the apertures of the primary member to regu
late the degree of coarse comminution of the
food and said surfaces of the primary member
relation to each other to move the inserts into
and out of alinement with the apertures.
8. A food chopper comprising a discharge
plate and a cutter rotatable relative to and in
contact With each other cooperatively to com
the primary member and companion piece
the apertures to move said inserts into and out
and companion piece being provided With addi
tional apertures smaller than the first-named
apertures cooperating with the cutter for ñner
comminution of the food, and means for moving
axially toward and from each other to move the
inserts into or out of the apertures or for moving
minute food, the discharge plate comprising a
primary member and a companion piece axially
adjustable toward and from each other and
rotatably with relation to each other, the pri
the primary member and companion piece cir
mary member providing a surface of contact for
the cutter with apertures therethrough coop
erating with the cutter for coarse comminution
apertures.
cumferentially relative to each other to move
the inserts into or out of alinement with the
WADE H. BENTON.
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