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Патент USA US2412962

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Dec. 24, 1946.
v T. c. BROOKHART ET AL
2,412,962
SLICING MACHINE
Filed Aug. 22, 12542
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BY
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ATTORNEYS
Dec. 24, 1946.
'T. C. BRQOKHART Em
2,412,962
SLICING MACHINE
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Filed Aug. 22, 1942
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ATTORNEYS
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Dec- 24, 1946-
T. c. BROOKHART ET AL
2,412,962
SLICING MACHINE
Filed Aug. 22, 1942
4 Sheets-Sheet 3
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13A
429i
INVENTOR
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ATTQRNEYS.
Dec. 24, 1946.
T, C_ BROQKHART ET AL
'
2,412,962
SLICING MACHINE
Filed Aug. 22, 1942
4 Sheefs-Shee'b 4
_
INVESTORS
BY “*4 C'Q'WZ
ATTORNEYS
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Patented Dec. 24, 1946
2,412,962;
UNITED STATES PATENT OFFICE
2,412,962
sucmo MACHINE
Theodore C. Brookhart and David A. Meeker,
Troy, Ohio, assignors to The Hobart Manufac
turing Company, Troy, Ohio, a corporation of
Ohio
‘Application August 22, 1942, Serial No. 455,808
13 Claims.
1
(Cl. 146-102)
2
This invention relates to food handling appa
ratus and more particularly to slicing machines.
It is the principal object of the invention to
provide a slicing machine which is compact, light
.
Fig. 4 is a vertical sectional view on the line
4—4 of Fig. 2, the same section line being also
shown on Fig. 6;
Fig. 5 is a vertical sectional view through the
in weight, which is simple and effective in opera 5 knife shaft and its support on the line 5—5 of‘
Fig. 3.
'
.
tion, and in which ready access is provided to all
exposed parts so that the entire machine can be
Fig. 6 is a plan View looking toward the base of
easily maintained in a clean and sanitary condi
the machine from below;
'
tion.
‘
Fig. 7 is a detail view of the gage plate adjust
It is a further object to provide a slicing ma
ing mechanism on an enlarged scale;
chine in which the gage plate, knife and the ad
Figs. 8 and 9 are broken perspective views from
jacent edge of the carriage at all times overlie
the rear of they knife showing the structure of
the surface of a. slice tray which extends from
the knife guard and the manner in which it is
the rear of the knife to the forward face thereof
assembled; and
i _
to receive the sliced material and to collect
Fig. 10 is an elevational view of the grinder
scraps, juices, and the like thereupon, from which
unit.
such materials can be readily removed.
Referring to the drawings which disclose a pre-_
It is a further object to provide such a slicing
ferred embodiment of the invention, a main base
machine having a gage plate which is supported
member is shown at I'D which forms the entire
from beneath an impervious cover member and *» lower part of the machine, being preferably
which carries a guard overlying its support to
formed as a single integral casting, suitably
prevent passage of material thereonto and to pro
?anged and ribbed as shown at “to afford the
vide for the discharge of scraps and the like
proper strength with reduced weight. The base
downwardly to the receiving surface of the slice
member is mounted upon a plurality of feet l2
tray.
25 which are preferably of rubber or other material
It is a further object to provide in such a slic
having high coefficient of friction. At one end,
ing machine a knife guard serving as a slice de
the base member is formed with a low generally
flector, which fully protects the knife from all
?at and somewhat recessedslice tray l3 de?ned
sides, and which serves to collect food particles
by a raised peripheral edge portion M, such slice
from both sides of the knife and to discharge the
tray extending from the end of the machine into
same onto the slice tray which extends beneath
the knife zone.
:
v
.»
the knife.
The base also projects toward the forwardv side
It is a further dbject to provide a removable
of the knife and has an integral upwardly ex
knife guard for covering more than half the
tending'portion l5~and a cover member I6 sub
knife periphery and to form such guard in sec- _
tions which are adapted to be removed and re
placed in predetermined relation to each other
to form a complete guard for the exposed edge of
the knife.
-
Other objects and advantages will be apparent
from the following description, the accompanying
drawing, and the appended claims.
In the drawings:
Fig. 1 is a view in elevation of a slicing ma
chine made in accordance with this invention
with certain parts being broken away to more
clearly show the structure thereof;
stantially parallel with and located at a level
above that of slice tray l3. It will be noted that
the vertical section I5 is joined to these two hori
zontal sections by means of curved areas l'l each
of which is of relatively long radius to avoid the
formation of pockets and to make it easy to keep
the machine in a clean and sanitary condition by
merely wiping across it. »
A pair of slide rods 20 and 2l' are mounted in
the under sideof thelbase member and held in
' parallel position beneath-cover section I6 by bolts
' 22, the rod‘2'0 being located rearwardly from the
rod 2|. .Cover portion N5 of the base is formed
Fig. 2 is a plan view of such machine with the
with a depending. ?ange portion 23 which extends
closure over the cavity formed in the housing for
downwardlyto approximately the level of the ad
the knife supporting means being shown in the 5.0 jacent- rod 2! to eifectively protect the same and
open position;
to render the entire area beneath the base inac
Fig. 3 is a rear elevational view with parts be
cessible to food particles and other material in
' ing shown in section through the cavity to show
the normal use and operation of the machine.
the location of the grinder unit as contained
To support the carriage, rear rod 20 carries
within such cavity;
a guide 24 at either end of which is mounted a
2,412,962
3
4
resilient member 25 to cushion the shock of the
carriage as it nears the end of its reciprocating
the closed or full line position is substantially in
of rubber or like material, the opening therein
will drop downwardly upon the slice tray l3 from
which they can be readily removed. The dotted
the same plane as that of the knife and the ad
jacent edge 53 of the carriage. It will be ob
stroke, and a universal joint connection is pro
served that in this position the parts are located
vided between the guide 24 and a sleeve 26 which is
received over the forward rod 2i. This comiec Si above and directly overlie the lower or slice tray
portion [3 of the base. Thus any particles, scraps,
tion comprises an aperture formed in guide 24
or juices and the like which fall from the carriage
through which the end of the sleeve '26 projects,
or from the knife and gage ‘plate during ‘operation,
the sleeve carrying an annular ?exible collar 2‘!
extending longitudinally of guide 24. Bolt 28 is
carried in a projecting part of guide 24 and ex
tends through the collar 21; washers 29 are lo
cated on opposite sides of and engage against-the
collar. The bolt also has athreadedportion 38
which extends through the forward end of guide 15
24. Guide 24 is also formed with an integral up
right section 3|, such section being apertured as
shown at 32 to provide for the drawing up of .bolt
28 to thereby compress washer 29 against ‘rubber
cushion 21 to cause it to be held under yielding
pressure in sleeve 26. With this construction
there is no loose play between the guide 24 and
sleeve 26, but in the event of any misalignment
of the rods, relative movement between the two
guides is permitted as necessary to avoid binding
upon the rods.
line showing of Fig. 4 illustrates the position
where it is set for maximum cut, and it is ob
vious that in this position a similar relationship
is present.
‘The gage plate carrier 5| is provided with an
integral guard member 55 which is preferably
formed inthe shape of a grooved trough and lo
cated at the lower edge of the gage plate, beneath
the carriage, such guard extending in overlying
relation to the cover 16. As so formed it likewise
overlies the actual gage plate supporting‘ means,
to be hereinafter described, and ‘thus prevents
access of the ‘food particles thereonto. It is of
sufficient width, as shown, to afford such protec—
tion even in the fully opened positionof the gage
plate, as illustrated in dotted lines. Preferably
the groove in the guard slopes ‘downwardly to
ward the knife and ‘terminates in the lip 56 from
which the collected particles are thus dropped
The carriage for supporting the work material
is shown at 35, and is provided with a downwardly
projecting tongue portion 36 ‘which is bolted by
means of bolts '3‘! to the ‘upright 31. If desired 30 directly upon the slice tray surface, thereby mak
ing for ease and simplicity of cleaning.
the carriage may be removed from upright 3| to
The gage plate support is carried by a'pair
provide ‘for handling‘ the work material upon the
of guide rods 60 and‘6l ‘which are sli'dably carried
cover IE, but for most purposes it is preferred to
by'bosses 62 formed in the main frame member,
utilize the carriage in the position shown.
The carriage has an upwardly sloping Work 35 on the under side of cover 16. These bosses are
supporting surface 38 and a right angularly ex
located at a desired angle as ‘shown, to effect with
drawing movement of the gage plate away from
the knife simultaneously with the enlargement
of the ‘opening thereof. As above noted, the guard
venient support for the hand when manual feed
of the work material is desired. Pusher plate 41 is 40 55 completely overlies the ends of rods '63 which
project through the cover, and affords protection
rotatably mounted upon shaft 42 which carries
against access of food particles thereonto.
an extended part on which is mounted a hand
Adjustment of the gage plate is effected by
grip 43, the shaft being journaled in a pusher
means of a lever 65 pivotally mounted for rota
plate arm 44. Arm 44 is supported from the for
tion about the axis of shaft 66, the lever being
ward side of the carriage on cross shaft 45 and is
provided'with an extension 61 at one side there
mounted thereon for both swinging and sliding
of carrying an upwardly extending pin 68.
movement with respect thereto.
Bolted to shaft 6| is a plate 69 having ‘an elon
In order to latch the pusher plate in upper in
gated slot 10 therein of a width corresponding
operative position, to permit of manual feed
where desired, the pusher plate arm carries a 50 to that of pin 68, ‘but of greater length to provide
for movement of the pin therein. In order to
projecting lug 46 which is apertured at 41 to re
hold the lever in any predetermined position, it
ceive a pin 48 ?xedly mounted in the carriage. A
is formed with an upwardly inclined portion 12
resilient spring member 49 mounted on the car
which has an axial bore into which extends a
riage abuts against the inner face of lug 46 in the
raised position of the pusher plate when it has 55 friction ‘plunger ‘I3, yieldably urged by means of
spring 14 against arcuate friction surface ‘15
been moved toward the knife to engage aperture
formed integrally with the base. Hand lever 16
41 over pin 48. This provides for yieldably hold
is fastened to lever '65, extending through a slot
ing the pusher plate in elevated inoperative posi
formed in the end ?ange of the base member,
tion, preventing any loose play between aperture
41 and pin 48 and avoiding the possibility of the 60 by means of bolts 11 and 1B, the latter having
clearance so as to permit of adjusting the hand
dropping thereof upon the hand of the operator.
lever in desired relation with respect to lever
It will be understood that such an operative posi
65, to thereby adjust the zero setting of the gage
tion is also the limiting position of the forward
plate. In the normal operation of the hand lever
sliding movement of the pusher plate, and that
‘I6 it is ?xedly secured ‘to and operates as an in
when so held it clears the knife and knife guard
tegral
part of the lever 55, such swinging move;
in its reciprocating movement.
ment about center 66 causing a corresponding
The gage plate is shown at 56, being mounted
actuation-of the slide rods 5| through the action
upon a gage plate carrier 5| by means of a plu
or pin '68 travelling in ‘the slot 16. Suitable’ln
rality of bolts 52 which pass through elongated
slots in the carrier 5! to thereby provide for ad 70 'dexing means may be provided for cooperation
with the external part of lever 16 to indicate the
justing movement of the gage plate toward and
setting of the gage‘ plate.
away from the knife, to maintain the desired re
At its rear portion, the base member ‘is also
lations'hip between the gage plate and the knife
formed with an integral ‘upstanding projecting
as the knife wears.
‘
As shown in Figs. 2 and 4, the gage plate‘ in .75 part 8!] which serves as a housing for the drive
tending abutment face '39. A projecting thumb
rest 46 extending from the face '39 provides a con
2,412,962
5
6
motor and knife shaft. The housing 88 is re
cessed upwardly as shown in Fig. 3, the drive mo
tor 8I being received therein through the open
aperture in the base, and removably held by
sothat it can pass through the notch. There
after, upon turning of the guard section about
the axis of the knife shaft, lug I88 is looked under
means of bolts 82. Its shaft carries a vertically
extending worm 83.
It will be noted that thehousing portion 88 ter
minates to the rear of the knife sufficiently to
provide a space for receiving any material drop
?ange I82,‘ preventing withdrawal of the guard
section away from housing 86.
Thus with the parts in the position shown in
Fig. 8, section I85 is being moved into position
where lug I 88will be received through notch I83,
to be then locked under the ?ange I82, to-thereby
ping downwardly from the knife, the surface I3 ll) secure the section in position upon the housing,
of the slice tray being extended into the zone
beneath the knife as shown at IBa and being of
permitting free arcuate travel thereof with
flange I81 moving around through the groove I88.
generally arcuate shape in the plane of the knife
to thereby further facilitate the ready cleaning
A. cut-out aperture I88 is~provided to serve as a
of that space when desired.
The knife shaft is shown at 84, and is rotat
grip for handling the guard section, and since it
is located to extend radially inwardly of the knife
periphery, it provides a space through which a
ably supported in spaced bearings 85, which are
cleaning rag or the like can be applied to the
received in a. housing and supporting member 88.
rear face of the knife‘ to remove food particles
Housing 88 is bolted to the housing portion 88
therefrom without removing the guard. ,
and sup-ported therefrom by means of bolts 81, 20
Having been assembled upon the housing, the
and is formed with a forwardly projecting part
?rst guard section I85 is then moved down
88 to receive and retain lubricant for the knife.
wardly, in the arcuate direction shown by the ar
The knife shaft 84 at its inner overhanging end
row in Fig. 9, to its ?nal position where notch I I8
carries the worm pinion 88 which meshes with
the worm 83. The knife is shown at 88, being
received over a supporting member BI which is
carried by the knife shaft and received internally
is received over a fixed pin III, suitably carried
by the housing 8'5 in position to project into the
groove I 88. In such position the guard serves to
protect generally the lower exposed portion of
of part 88 in sealed relation thereto. The knife
the knife and extends upward to about the level
is dished in the usual manner and is provided
of the knife axis at either side thereof.
with a center disc 81% which carries a threaded 30
Thereafter the second guard section <.I86 is
stud 85 to retain the same within the supporting
member 9|, such disc serving to guide and sup
port the material in its traverse across the face
of the knife.
A control switch 9i‘ is located on the base and
moved into position, such section likewise having
a hand aperture H4 and being formed with an
annular ?ange I'I5 which is adapted to be re
ceived within the groove I88. No provision cor
responding to lug I88 is made, however, inasmuch
is connected by suitable wiring 88 with the motor
as a locking means is provided for the second
to provide for control of the operation thereof.
housing section to lock and retain the assembled
A knife guard is provided for protecting the
L’uard sections in ?nal operative position. Such
locking-means comprises a tongue I I8 projecting
tending
exposed over
edge more
of thethan
knife,
half
such
theexposed
periphery
edge
of the
40 downwardly from the rear portion of the guard,
knife. Likewise it is desired to utilize the guard
and having a cone-shaped aperture II‘I formed
to de?ect slices and scraps from the rear face
therein. A locking pin I I8 is suitably mounted in
of the knife and to form a dished cover over the
the housing sections 88 and 88, and is provided
entire rear face of the knife. In order to provide
with a cone-shaped end portion adapted to be
for the ready removal of the guard for purposes 4.5 received in the seat “1. A spring IIB normally
of cleaning, it is preferably constructed in a plu
urges the locking pin into seating engagement,
rality of sections, the sections being separately
and a manually operable portion I28 is formed
removable and replaceable in operative position
on the pin to provide for withdrawal thereof.
to form when assembled an effective guard for
The ?ange I I5 is likewise notched as indicated
the full extent of the exposed knife edge. Each ~
section thus extends around no more than half
the knife periphery and hence may be readily
removed and replaced.
_
For this purpose the outer portion of housing
member 88 and the corresponding edge of the
housing 88 are formed to provide between them
an annular recess I88. Further the member 86
is formed with an inwardly extending recess I8I,
leaving an overhanging ?ange portion I82. Such
overhanging ?ange I82 is continuous around the
entire periphery of the surface except for a
notched out zone I83 of relatively limited extent,
located in the upper part of the ?ange as indi
cated in Fig. 8.
The knife guard as stated is formed in a plu- ,~
rality of sections, the ?rst section being indicated
at I85, and the second section at I86, each sec-_
tion being semi-circular. Section I 85 is provided
with an annular inwardly extending ?ange I81
at I22 to be received over a ?xed pin I23 held in
housing 86 for further holding and guiding the
second section, and the end of ?ange H5 is
notched as shown at I24 to ‘be received over pin
III, permitting the adjacent edges of the two
guard sections to ?t closely together.
Having thus ?rst assembled the guard section
I 85 and turned it around to its operative position
as shown in Fig. 9, the second section I86 is
slipped into place, and upon withdrawing manual
‘ locking pin I28 and allowing it to return and en
gage in seat I I7, 11; applies continuous pressure to
the second guard section, "in such a direction as
to tend to press it downwardly into contact with
the first guard section I85, thereby maintaining
such assembled guard sections against undesired
movement or rattling in use.
'
'
It will be readily understood that when it is
desired to remove the guard, manual retaining
pin I28 is withdrawn, permitting direct upward
which is adapted to be received within the groove 70 withdrawal of the second, section I86, after which
I88. In order to permitof assembly of this hous
the‘ ?rst section I85 is moved in an arcuate man
ing section in only one position and to prevent
ner to the position where lug I88 can be with
removal thereof except in such position, the
drawn through slot I83;
‘
' 7
?ange I87 is formed with an inwardly extending
When in assembled condition it will be seen
lug I 88 of less arcuate extent than notch I83 75 that the two guard sections thus provided form a
2,412,962
7
generally cup shaped or‘dished guard extending
from the housing section 80, 86 to the surface of
the knife around the entire periphery. .Prefera
bly each guard section is formed with a radially
extending portion I25 which completely overlies
the knife edge, and which extends forwardly
somewhat beyond the planeithereof to thus serve
8
gage plate and serving to clamp vthe unit upon
the ‘gage plate.
For operation, the gage plate is ‘adjusted to an
intermediate setting providing a spacing fromthe
knife, and the grinder unit then located upon the
gage plate and fastened thereto by means of the
bolt I 53. Thereafter by operating the manual
gage plate ‘adjustment member 76, either the
as a guard for the forward face of the knife. It
grinding stone or the burr removing stone can be
is further found that with a guard of this con
struction, any tendency of the knife to discharge 10 brought into operative relation with the knife and
the grinding operation.thus effected.
food particles by centrifugal force onto the guard
Following the grinding operation the entire
results .in those particles being collected on the
guard surface, and moving thereacross to drop
from thelower surface directly into the slice tray
grinder unit canvbe removed for cleaning, and
for complete washing by immersion if desired,
A lug I43 is formed integral with the housing pro- '
viding a projecting surface over which the end
comprising a base, a rotary knife, means for ro
I 20 of the locking pin may be engaged to retain
the same in withdrawn position. Cavity I43 like
housing over said supporting means, and remov
able means for guarding more than half the pe~
portion I3‘of the base from which they can be 15 following which it is returned to the stud I44
within the cavity I40. With the closure MI in
removed as above described.
closed position the unit is thus kept in a. clean
It will be noted that portion I25 does not extend
and sanitary condition until further use is .re
around the knife periphery in the area of gage
quired.
plate 50 as noadditional protection is required in
It will further be seen from the showing of Fig.
this area. The guard is however utilized in this
3 that the normal position for operation of ‘the
area for the purpose of forming a slice and scrap
release pin I20 requires that the end thereof be
de?ector for the rear of the knife, leaving the
turned to project above the surface of the clo
cutting edge thereof exposed, and de?ecting the
sure I'4I. Thus removal of the guard is prevent
slices ‘cut by the knife and discharging any
scrapsor particles remaining on the surface of 25 ed without ?rst raising the closure MI, and turn
ing pin HS around to the dotted line position of
the knife downwardly onto the slice tray. As
Fig. 3 where end E20 is easily accessible for man
shown in Fig. 3, the edge I30 of the combined
ual operation. Conversely the guard cannot be
guard extends across the knife face in a generally
partially reassembled with the release pin I20 left
vertical direction, being raised somewhat toward
the center as shown ‘at I-3I to facilitate the de 30 in upwardly extending position, ‘unless the clo
sure is also allowed to remain ‘partially open.
?ecting of the slices downwardly onto the slice
Thus an indication is afforded for the operator
tray. The direction of travel of the knife is along
so that in the normal operation he will provide
the arcuate line indicated by arrow I32, and if a
for the complete locking of the knife guard in
tangent be drawn to this are ‘at the point where
proper operative position, following which the
it meets the edge of the slice de?ector, it will be
retaining pin IE0 is returned to the full line po
seen that the included angle a is an acute angle.
sition shown in Fig. 3, in which position the clo
This provides for the continuous removal of such
sure can be moved to fully closed position, thus
particles ‘as may collect upon the rear of the
assuring that the guard has been properly as
knife, since under the action of the travel of the
knife "they have a resultant movement radially 40 sembled.
While the form of apparatus herein described
outwardly and ?nally downwardly onto the slice
constitutes a preferred embodiment of the inven
tray.
tion, it is to be understood that the invention is
The housing 80 has been shown as provided
not limited to this precise form of apparatus, and
with a cavity I40 in its upper portion thereof, the
that changes may be made therein without de
manually operable end I20 of locking pin II8 ex
parting from the scope of the invention which is
tending into such cavity The cavity is closed by
de?ned in the appended claims,
a pivoted closure member I4I, pivoted about axis
What is claimed is:
I42, and generally conforming in its outer sur
1. A slicing machine of the character described
face with the smooth contour of the housing 80.
tatably supporting said knife from said base, a.
wise carries a stud I44 upon which a removable
riphery of said knife including sectional guard
grinder unit I45 is received. Such grinder unit
members neither of which has a greater periph
eral extent that half the periphery of the knife,
cooperating means on said housing and on said
comprises :a bracket I46 which is also formed as
a guard overlying the stones and serving to col
lect the particles of the stone and knife which are
removed during the grinding operation, to keep
sectional guard members for individually receiv
ing said guard members in predetermined posi
the same from falling upon the remainder of the 60 tion thereon, and means for retaining said mem
bers in said predetermined position and in as
machine. .It carries enlargements I41 and I48 in
_ sembled abutting relation to each other to form a
which the grinding stone I49 and the burr re
knife guard for the exposed portion of said knife.
moving stone 158. are rotatably mounted, respec-'
2. A slicing machine of the character described
tively. The latter is provided with an extension
comprising a base, a rotary knife, means for ro
45I having an enlarged slot therein to provide
tatably supporting said knife from said base, a
for adjustment of the angle of operation thereof
housing over said supporting means, and remov
as may be required during use. An overhanging
able guard means for guarding the exposed edge
part I52 is threaded to receive a knurled nut I53
of said knife formed in a plurality of guard sec
having a pointed end I54 which is used for the
attachment of the grinder in operative position. '" tions the peripheral extent of each of said sec
tions not exceeding half the periphery of the
Such attachment is made on the gage plate
knife, cooperating annular ribs and grooves on
50, the rear surface of such plate being provided
said guard sections and on said housing provid
with a, button I55 having a central seat therein
ing for receiving said sections thereon, and means
for receiving the "end I 54 of the bolt I53, the hous
‘for retaining said guard sections in assembled
ing I46 being received on the forward face of the
9.,
12,412,962
relation thereon forming an effective guard for
the entire exposed edge of the knife.
10
said knife, a housing enclosing said knife support
ing means, said housing having a cavity therein
3. A slicing'machine of the character described
adapted to receive said unit upon removal from
comprising a base, a rotary knife, means for ro~
tatably supporting said knife from said base,
said operative position, a movable closure over
said cavity, a removable knife guard, means for
a housing over said supporting means, and re
normally retaining said guard in operative posi
movable guard means for guarding the exposed
tion, and a manually operable release for said
edge of said knife formed in a plurality of guard
retaining means located within said cavity and
sections including a ?rst guard section, means on
accessible only upon opening movement of said
said housing for receiving said ?rst guard section 10 closure.
.
1
"
in predetermined‘ angular position and providing
8. A slicing machine of the character described
for arcuate travel thereof about the knife axis to a
comprising a base, a rotary knife, means for sup
?nal operative position, a second guard section,
porting said knife from said ‘base, a separable
locking means on said second section, and means
knife sharpener unit adapted to be removably sup
on said housing for supporting said second guard
ported in an operative positionfor sharpening
section in contact with said ?rst section and co
said knife, a housing enclosing said knife sup
operating with said locking means for retain
porting means, said housing having a cavity there
ing said sections in assembled relation under pres
in adapted to receive said unit upon removal
sure to avoid movement thereof and toform a
from said operative position, a movable closure
complete knife guard for the exposed edge of
over said cavity, a removable knife guard, means
the knife.
for normally retaining said guard in operativepo
4. A slicing machine of the character described
sition, and a manually operable release for said
comprising a base, a rotary knife, means for ro
retaining means located within said cavity and
tatably supporting said knife from said base, a
accessible only upon opening movement of said
housing over said supporting means, and remov
closure, said release having an inoperative posi
able guard means for guarding the exposed edge of
tion within said cavity and being movable to
said knife formed in a plurality of guard sections
a position extending above said cavity for man
including a ?rst guard section, means on said
ual operation, said closure being movable to closed
housing for receiving said ?rst guard section in
position only when said manually operable means
predetermined angular position and pI‘OViding for , has been returned toinoperative position follow
arcuate travel thereof about the knife axis to a
ing the locking of said guard inguarding posi
?nal operative position, a second guard section,
locking means on said second section, means on
9. A slicing machine of the character described
said housing for supporting said second guard
comprising a base, a rotary knife supported on
section in abutting contact with said ?rst section I
said base, a slice tray at the rear of said knife,
and cooperating with said locking means for re
a unitary arcuate knife guard for protecting a
taining said sections in assembled relation under
portion of the rear face of the knife and the
pressure to avoid movement thereof and to form
exposed edge thereof, said knife guard having a
a complete knife guard for the exposed edge of the
cup-shaped portion overlying the rear face of
knife, and manually operable means for releas 40 said knife and an integral portion adapted to
ing said pressure to provide for individual removal
serve as a slice de?ector to de?ect slices toward
of said sections from said housing.
said slice tray, said knife guard also having an
integral ?anged portion closely adjacent the
5. A slicing machine of the character described
knife periphery'and extending in continuous in
comprising a base, a rotary knife, means for
tion.
,
.
..
'
.
.
supporting said knife from said base, a removable ./
tegral relation from the rear of the knife beyond
knife guard for protecting the exposed edge of
said knife, a manually movable locking means for
retaining said knife guard in and releasing the
the forward face thereof, means for removably
supporting said knife guard from said base for
same from its operative position, a housing for
said knife supporting means having a cavity ,
therein, said locking means extending into said
cavity and having a part‘ located therein and
adapted to extend above the level of said cavity
for manual operation, and a closure for said cavity
movable to closed position only when said locking ,
means is in locking position and has been re
turned to position below the level of said cavity
following locking of said guard in operative posi
tion.
6. A slicing machine of the character described
comprising a base, a rotary knife, means for sup
porting said knife from said base, a separable
knife sharpener unit adapted to be removably
supported in an operative position with respect to
said knife, 3, housing enclosing said knife sup
porting means, said housing having a cavity there
in adapted to receive said unit when removed
from said operative position, and a closure over
said cavity to prevent access of dust and dirt
thereto.
7. A slicing machine of the character described
comprising a base, a rotary knife, means for sup
removal therefrom as a unit, and means, for
locking said knife guard in assembled predeter
mined position upon said base with said slice
de?ector portion in proper position to de?ect
slices toward said tray.
10. A slicing machine of the character de
scribed comprising a rotary knife, a main base
member supporting said knife, a slice tray at the
rear of said knife, an arcuate knife guard for
protecting the rear of said knife and the periph
eral edge thereof including two separate indi
vidually removable sections, said sections together
covering and protecting substantially the entire
circumference at the rear of said knife and ter
minating at one side of the knife in a substan
tially vertical line forming a de?ecting surface
for discharging sliced material and particles
thereof from the rear face of said knife down
wardly onto said slice tray, means for mounting
said sections at the rear of said knife in cooper
ating assembled relation and providing for indi
vidual removal thereof for cleaning and the like,
and means for predetermining the operative po
sition of each of said sections providing for co
operative relation therebetween and proper rela
porting said knife from said base, a separable
tive location of said de?ecting surface.
knife sharpener unit adapted to be removably
11. A slicing machine of the character desupported in an operative position for sharpening 75 scribed comprising a, rotary knife, a main base
pangs->62
12
11
tion was received and retaining said second sec
tion in assembled relation with said ?rst section
to form a complete knife, guard at the rear of
said knife and on the exposed edge thereof.
eral edge thereof including two separate indi
13. A slicing machine of the character de
vidually removable sections, said sections, each
scribed comprising a base, a rotary knife,’ means
covering and protecting approximately half the
for rotatably supporting said knife from said
entire circumference at the rear of said knife
base, a housing over said supporting means at
and being formed to provide in assembled posi
the rear of said knife, removable guard means
tion a slice de?ector surface atv one side of said
knife, and means for mounting said sections at 10 for guarding the exposed edge of said knife
formed in a plurality of cooperating guard sec
the rear of said knife in cooperating assembled
tions removable and replaceable on said housing
relation and providing for individual removal
at the same side of- said knife in predetermined
thereof for cleaning and the like.
sequence including a ?rst guard section, means
12. A slicing machine ‘of the character de
on said housing for receiving said ?rst guard
scribed comprising a base, a rotary knife, means
section in predetermined angular position and
for rotatably supporting said knife from said
providing for arcuate travel thereof around the
base, a housing over said supporting means at
knife axis to a ?nal operative position, means
the rear of said knife, removable guard‘means
preventing removal of said ?rst guard section
for guarding the rear face of the exposed edge of
from said operative position except in said pre
said knife and formed in a plurality'of cooperat
determined angular position, a second guard sec
ing guard sections individually removableand re.
tion, locking means on said second section, and
placeable in predetermined sequence". upon the
means on said housing for receiving said second
same side of said knife to form aicomplete guard
guard section in substantially the same angular
therefor including a ?rst guard section, means
position as said ?rst guard section and cooper
on the housing at the rear of said knife for re
ating with said locking means for retaining said
ceiving said ?rst guard section in predetermined
second section in assembled relation with said
angular position and providing for arcuate travel
?rst section to form a complete knife guard for
thereof around the knife axis to a ?nal ‘opera
the exposed edge of the knife.
tive position, a second guard section, and means
member supporting said knife, a slice tray atthe
rear of said knife, an arcuate knife guard for
protecting the rear of said knife and the periph
on said housing at the rear of said knife for re
ceiving said second guard section in substantially
the same position in which said first guard sec
30
THEODORE C. BROOKHART.
DAVID A. MEEKER.
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