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Патент USA US2126380

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n'Aug- 9, 1938-`
.1. FOLK
SLICING., MACHINE
Filed sept. '17, 1952
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` 2,126,380
7 Sheets-sheet 1
Aug. 9, 1938.
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sLIoINGf.~ MACHINE
Filed Sept. 17, 1932
7 Sheets-Sheet 2
Aug. 9, 1938.
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sLIcING; MACHINE
Filed Sept. 1'7, 1952
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Aug. 9, 1938..
J. FOLK
2,126,380
SLICING~ MACHINE
Filed sept. 17, 1952
'7 Sheets-Sheet 6
ii
Aug. 9, 1938'. 1
J. FOLK
2,126,380
SLICING, MACHINE
Filed Sept. 1’7, 1932`
'7 Sheets-Sheet 7
Patented Aug. 9, 1938
2,126,380
UNITED STATES
PATENT oFElcE i
2,126,380
SLICING MACHINE
Joseph Folk, La Porte, Ind., assignor to- U. S.
Slicing Machine Company, La Porte, Ind., a
corporation of Indiana
Application September 17, 1932, Serial N0. 633,594
15 Claims.
The present invention relates to slicing ma
chines, and particularly to that type of slicing
machine in which the substance is mounted on
a carriage which is moved manually relative to
5 a slicing knife so that successive slices may be
cut therefrom.
One object of this invention is to provide a
slicing machine in which the substance carriage
is provided with a clamp for engaging either the
upper or rear surface of the substance to be sliced
so that the substance may be moved toward the
cutting plane of the knife, preferably by spring
pressure. The clamp is preferably a self-locking
clamp, that is, it locks itself in adjusted position
as soon as the same is moved to that position.
Another object of this invention relates to the
manner of holding the substance as it is moved
against the slicing knife, the substance being
held in such a manner that the same is prevented
20 from sliding movement in a direction away from
the knife and is also prevented from upward
movement away from the supporting surface of
the substance table. In carrying out this in
vention, I provide a pusher plate having suitable
25 prongs thereon which have flat sides facing in a
direction of relative movement between the knife
and substance support and inclined in such a
direction that the reaction between the sub
stance .and the prongs will force the substance.
30 against the substance support.
Another object of this invention resides in the
provision of suitable guiding ribs on the sub
stance support which are inclined slightly down
ward toward the cutting plane of the knife to sup
35 port the substance in a substantially horizontal
position when the rear end of the substance (that
end which is away from the cutting plane of the
knife) is clamped against the substance support
ing table. In one preferred embodiment of my
40 invention, I use relatively sharp ribs adjacent to
the cutting plane of the knife, the same having
one side thereof substantially perpendicular to
the plane of the substance support, the perpen
dicular side of the ribs facing in the general di
rection toward the cutting edge of the knife.
Another object of this invention resides in the
provision of a slicing machine having a sharpen
ing apparatus positioned partially on the side of
the cutting plane of the knife which is adjacent
Ci O the substance support,` and in so mounting the
clamp for the substance on the substance sup
port that the clamp can move substantially into
the cutting plane of the knife when in operative
position, but which will automatically be moved
away from the cutting plane when the clamp is
moved to an inoperative position. The purpose
of this arrangement is to prevent the clamp, when
in an inoperative position or in operative posi
tion, from striking the sharpening apparatus,
while at the same time permitting the sharpen- 5
ing apparatus to be arranged in such a position
that it can be quickly moved against the cutting
edge of the knife to sharpen the same.
A still further object of this invention resides
in the provision of a clamp which may be readily 10
detached from the substance supporting carriage,
this clamp preferably having a rigid portion to
be detachably secured to the substance support
and a spring~pressed substance engaging portion
mounted on the rigid portion.
Other objects of this invention will appear
hereinafter .as the description thereof proceeds,
the novel features, arrangements and combina
tions being clearly set forth in the appended
claims.
'
'
In the drawings:
Fig. 1 is a side elevational view of a slicing ma
chine embodying my invention;
Fig. 2 is a plan view of the slicing machine
shown in Fig. 1;
25
Fig. 3 is an end elevational view of the same
looking at the slicing machine from the side
away from the operator, or from the right as
viewed in Fig. 1;
Fig. Il is an elevational view of the arrange- 30
ment of the gauge plate, guard plate and slicing
knife;
Fig. 5 is a section taken> substantially along
the line 5-5 of Fig. 4;
Fig. 6 is a section taken substantially along 35
the line 6--6 of Fig. 2;
1
Fig. 7 is a section taken along the line 1_1 of
Fig. 6;
Fig. 8 is a section taken along the line 8-`ß of
Fig. '7;Í
40
Fig. 9 is a view similar to Fig. 8, showing a
modified form of rib;
Fig. 10 is a section taken substantially yalong
the line lll-_ID of Fig. 2;
Fig. 11 is a bottom plan view of the substance 45
supporting carriage with parts thereof broken
away for the sake of clearness;
Fig. 12 is a section taken substantially along
the line l2-l2 of Fig. 3;
Fig. 13 is a section taken substantially along 50
the line |3-I3 of Fig. 12;
Fig. 14 is a plan view of a modified form of
pusher plate for the substance carriage;
Fig. l5 is a section taken along the line l5-I5
of Fig. 14;
2
2,126,380
Fig. 16 is an end elevational view of the sub
stance carriage and clamp shown in Fig. 14, look
ing from the right in that figure;
Fig. 17 is a section taken along the line |1-|1
of Fig. 14; and
Fig. 18 is a section taken on the line |8-l8 of
Fig. 1.
The reference numeral 20 indicates the base of
a slicing machine in which there is housed a motor
or the like for driving a slicing knife. At one side
of the base at 2| (see Figs. 2 and 3) there is pro
vided a knife supporting bracket upon which the
knife 22 is rotatably mounted. This mounting
for the knife is best illustrated in Fig. 5 in which
23 represents the knife supporting shaft, 24 a
pulley driven by the belt 25 from the motor, and
in which 26 indicates a clamping nut in the form
of a headed screw provided with openings 21 for
the reception of a suitable tool for threading the
20 screw into the shaft 23. The knife itself is
lcentered upon a hub portion 28 formed on the
pulley A24 and is clamped between the nut 26 and
the body of the pulley 24. A slice deflector 29
extends from a position close to the cutting edge
25 of the knife to a position remote therefrom and
acts as means for directing the slice away from
the knife after the slice has been formed.
The
construction of this deilector 29 is not material to
the present invention but is claimed in another
30 application assigned to the same party in interest.
As is clear from an inspection of Figs. 3 and 4,
the base is provided with a scrap receiving surface
30, this surface being inclined downwardly and to
the left, as viewed in Fig. 4, and being formed
directly below the knife so that any scraps falling
vfrom the knife will fall upon the surface 30 and
roll down the surface 30 toward the left, as viewed
in Fig. 4, onto the slice receiving surface of the
tray 3| where they may be easily removed. Fur
40 ther-more, in the event the scraps do not roll
down the surface 30, it is possible to quickly clean
this surface 30 by moving a cleaning cloth or the
like over the surface from one end thereof to the
other, the cleaning operation being aided by the
sloping surface of the scrap receiving surface 30.
The knife is provided with a curved guard 32
which encloses the upper and rear portions of the
knife. The guard plate 33 has the lugs 34 thereof
secured by pins 35 or the like to the guard 32,
whereby the guard 32 and guard plate 33 move in
unison with each other.
The guard 32 is provided
with a notch 36, and the guard plate has a down
ball contacts with the central portion of the guard
plate 33 and prevents the central portion of the
guard from being flexed away from the substance
when the substance is rubbing thereagainst. At
the same time, this anti-friction contact between
the ball 41 and the guard plate 33 does not inter
fere with the rotative movement of the knife.
The knife guard construction 32 and its attendant
parts are disclosed and claimed in applicant’s
copending case Serial No. 719,692, filed April 9,
1934, which matured into Patent No. 2,065,572 on
December 29, 1936.
As will be seen from an inspection of Figs. l, 2,
12 and 13, the base is provided with a raised tubu
lar portion 48 which encloses the guide rod 49 and
acts as a cover for the same.
The ends of the
guide rod are mounted within suitable openings in
the ends of the tubular portion 48 and secured in
place against longitudinal movement by the
screws 56 and washers 5|.
A bearing member 52 20
_surrounds the guide rod 49 and is guided thereby
for longitudinal movement. This bearing mem
ber has a lateral extension 53 (see Fig. 13) to
which is secured a depending flange 54 on the
substance support. The substance support is 25
perhaps best illustrated in Figs. 1, 2, 3, 6, 10 and
11, and comprises a V-shaped trough 55 which
has a skirt portion 56 on the slicing knife side
thereof. The flange 54 forms an extension of the
skirt 56 and is attached by suitable screws 51 and 30
locating pins 58, the latter holding the support in
proper position with respect to the lateral exten
sion 53 on the bearing 52.
The substance support is also supported for
reciprocating movement at the side thereof re
mote from the cutting plane of the knife, and in
the manner which is best illustrated in Figs. 1
and 3. The base is provided with a U-shaped
guide 59, and the depending lug 60 on the carriage
carries a roller 6| mounted for rotation on the fl l)
stub shaft 62. The roller 6| engages the upper
and lower arms on the U-shaped guide 59 to pre
vent vertical movement of the substance support.
A handle 63 is provided on the operator’s side of
the substance support and is supported at the
opposite ends thereof by the arm 64 and depend
ing lug 65. By applying manual pressure to the
handle 63, the substance support may be recipro
cated in a direction parallel to the cutting plane
of the knife.
The clamp for the substance is indicated gen
erally by the reference numeral 66, and is secured
wardly extending ñnger 31 provided with a notch
to a bearing member 61 which has a cylindrical
38. As is clearly illustrated in Figs. 3 and 4, a pin
39 is secured to the knife supporting bracket 2|.
Also, as is clearly illustrated in Figs. 2 and 4, a
screw 40 is secured to one side of the base. The
screw 40 and the pin 39 are adapted to be received
opening therein embracing the upright 68 so that
within the notches 38 and 36 respectively when
60 the guard and guard plate are in operative posi
tion. The guard 32 is provided at its upper por
tion with a laterally extending screw 4|, and this
screw is received within a notch 42 in the bracket
43 secured by screws 44 to the upper surface of
the knife supporting bracket 2|. The screw 4| is
provided with a thumb nut 45 which draws the
guard 32 firmly against the bracket 43. The
guard is provided with bosses 46` which abut
against the bracket 43. The` guard and guard
plate may be quickly removed by loosening the
thumb nut 45 and lifting the guard and guard
plate vertically. As will be noted from an inspec
tion of Fig. 5, the nut 26 is provided with an anti
friction ball 41 which is pressed into a suitable
75,. recess in
the nut to hold the ball in place.
This
the clamp 66 may be moved up and down as de
sired along the upright 68. Separation of the up
right and bearing member ‘61 is prevented by
means of a washer 69 and screw 18.
In order to
prevent turning movement of the clamp, I provide
the bearing member 61 with a laterally extending 60
arm 1| having a U-shaped extension 12 embrac
ing the second upright 13. One of the arms of
the U-shaped portion 12 is provided with a
spring-pressed friction bearing member within
the cylindrical portion 14 (see Fig. 1). Both of
the uprights 68 and 13 are carried by a bearing
member 15 which extends beneath the substance
support 5,5 and is guided by the guide rods 16
and 11 in a direction substantially perpendicular
to and from the cutting plane of the knife. The 70
portion of the bearing member 15 which extends
beneath the support 55 is provided with two sets
of rollers, each set including four rollers spaced
circumferentially about the rod 11. These rollers
are indicated by the reference numeral 18 and 75
3
`2,126,380
have their peripheries shaped to conform with
the cylindrical surface of the guide rod, as is
clearly illustrated in Fig. 10. These rollers ro
tate on the spindles 19 provided on the bearing
member 15. The bearing member 15 also has a
lateral extension 8|) which is provided with a roller
8| mounted to rotate on the screw 82 and has VtheV
peripheral surface thereof shaped to conform to
the cylindrical surface of the guide rod 16. The
roller 8| prevents movement of the bearing mem
ber 15 in one direction, and the pin 83 Vprevents
movement of the bearing member in the opposite
direction. If desired, another roller similar to
8| may be provided in place of the pin 83.
The means for feeding the bearing 15 and conse
15
quently the clamp, in a direction toward the cut
ting plane of the knife is . best' illustrated in
Figs. 10 and 11.v In these figures, 84 represents a
rod having a threaded portion 85 threaded into
20 the boss 86 and secured in place by nut 81. The
opposite end of the rod extends through an open
ing 88 in the flange 89 which extends downwardly
at the side of the substance support remote from
the cutting plane and is held in spaced relation
centrally within the opening 88 by means of a
washer 90 held in place on the end of the rod 84
by a screw 9|. A spring 92 surrounds the rod 84
and abuts at one end against the washer 90, and
at the other end the spring abuts against ‘the end
30 of acup-shaped member 93 provided in the bearing
15. The spring normally tends to move the bear
ing 15 and clamp in a direction toward the Vcutting
plane of the knife. The spring can'be removed for
repairs or replacement by removing the screw 9|
and sliding the spring over the rod 84 through the
opening 88.
'
As will be noted from an inspection of Fig. 3,
the opposite ends ofthe guide rod 16 are sup
ported in the laterally extending lugs 94. To one
40 of these lugs 94 there is secured, by means of the
screws 9‘6, a guide 95 which extends upwardly and
away from the cutting plane of the knife and is
provided at its upper end with a notch 91.> The
bearing 61 on the clamp 66 is provided with an
adjustable screw 98 which contacts with the guide
95 so that when the bearing member 61 is moved
upwardly along the uprights 68 and 13, the clamp
will be automatically moved away from the cut
ting plane of the knife. The reason for doing
50
this is that the sharpening apparatus 99, which
is pivoted at |80 to the bracket 43, extends on
both sides of the cutting plane of the knife, as
will be seen from an inspection of Fig. 2. ’There
fore, if the forward side of the clamp or pusher
Ul Ur plate 66 is too close to the cutting plane of the
knife in its upper or inoperativeposition, it will
strike the sharpening apparatus and will damage
the same, or will damage the prongs (later to be
described) provided on the clamp ‘66.
The details of the sharpening apparatus will
not be herein described except to say that the
sharpening stones- ||l| and |92 engage the knife
on opposite sides thereof and have a casing |03
for protecting the same. It will be noted that
the sharpening apparatus 99 extends over `the
forward edge of the knife and acts as a guard
therefor, and is in a position `to be readily moved
into engagement with the knife when desired.
When the clamp is in its uppermost position,
70 the screw 98 is ararnged within the notch 91 to
prevent downward movement of the clamp due
to vibratory movement of the slicing machine
and against accidental movement downwardly in
case the clamp is struck.
75. The slice receiving tray is supported on a
bracket |94 which in turn is supported in any
suitable manner on the side of the base 20.
The substance support 55 has the upper surface
thereof provided with ribs extending in a direc
tion toward the cutting plane of the knife. These Ul
ribs, as clearly illustrated in the plan view in
Fig. 2, and in cross-sectional views in Figs. 7
and 8, are relatively broad remote from the cut
ting plane of the knife and then become sharper
adjacent the cutting plane of the knife, the broad
portions being indicated by the reference char
acter |95, and the> narrower portions by the
reference character |96. It will also be noted,
from an inspection of Fig. '1, that the ribs have
the upper surfaces thereof sloping downwardly
toward the cutting plane of the knife. This is to
facilitate the feeding of the substance toward the
cutting plane, for with the spring pressure on
the clamp or pusher plate 66, the feeding of the
substance is resisted if the ribs are at the same 20
height throughout their entire length or are in
clined upwardly toward the cutting plane.
In
Fig. '7 the reference numeral |01 represents a
line which is parallel to the guide rods 16 and
11, and the amount of inclination from one end
of the rib to the other is indicated by the refer
ence character A. Preferably, one side of that
portion of the rib which lies adjacent to the cut
ting plane of the knife is perpendicular to the
supporting surface of the substance support, as 30
indicated at |98. Thus when the ribs bite into
the under side of the substance being cut,`there
is a series of vertical abutment faces |98 which
prevent the substance from moving away from
the knife or upwardly with respect to the sub
stance support. It will be noted that the ribs
on the rear abutment wall |89 of the substance
support are substantially rounded in cross-section
throughout their entire length. These ribs are
indicated by the reference numeral lli). The 40
rounded portion of the ribs, both on the abut
ment Wall |99 and on the main substance sup
porting surface of the substance support, provide
broad surfaces for supporting the substance
without digging into the substance, and at the 45
same time provide recesses therebetween which
prevent the formation of any appreciable amount
of suction between the substance support and
the substance.
'
The substance clamp is provided with a plate 50
il | on the slicing knife side thereof, and this
plate | || is substantially parallel with the cut
ting plane of the knife. The face of the plate
ill is provided with a series of ilat prongs H2
which are pointed in one direction, and the flat 55
faces of these prongs are inclined to the vertical
in a direction upwardly and away from the oper
ator’s position. It will also be noted that the
flat faces of these prongs are not perpendicular
to the substance supporting surface of theV sub
stance support, but are incliñed thereto and in
a direction upwardly and away from the operator.
When the substance is being fed along the sub
stance support by the pusher plate | l l, the prongs
||2 imbed themselves in the rear end of the sub
stance, and the action of the cutting force of
the knife on the substance, which is substantially
in a horizontal direction to the right, as viewed
in Fig. 6, causes the substance to be forced down
against the substance support and into engage
ment with the ribs, so that the sharp portions
of the ribs adjacent the cutting plane of the
knife will dig into the substance and prevent
sliding movement thereof relative to the sub
stance support in a direction toward the oper 75
4
2,126,380
ator’s position. This action is more pronounced
a plane parallel to the movement of the substance
as the substance becomes very short in the direc
support and then tapers at an increased rate
away from the same plane to provide room for
the guard plate 33 so that the substance engag
ing portion of the guard plate is substantially in
the same plane as the peripheral edge of the
knife. The forward edge of the guard plate is
rounded, as at I20, so that the side of the sub
stance after it passes the cutting edge of the
knife does not have a sharp abutment against 10
tion of its feed toward the cutting plane of the
knife, that is, when the plate III comes close to
the cutting plane of the knife and there is only
a small portion of the substance lbetween the
plate I II and the knife, the action of the prongs
H2 is more pronounced. Also, during the slic
ing of the substance, the prongs tend to work
holes in the end of the substance and can have
relative sliding movement with respect to the end
of the substance, but the sliding movement of
the substance is always in a downward direction
toward the substance support due to the inclina
tion of the prongs. It Will be noted that the sum
total of the substance engaging surfaces of the
prongs is quite large, and therefore there is a
very appreciable effect upon the substance by
these prongs in the manner aforesaid. The plate
20 III is also provided with downwardly extending
blunt prongs H3, so that if desired, the upper
side of the substance may be engaged by the
prongs and the substance fed along the substance
support by the spring-pressure 'the same as when
25 the plate III is moved against the rear end of
the substance. These prongs H3 are preferably
used When there is a considerable portion of the
substance to be sliced, and the pusher plate III
is used when the substance becomes shorter.
30 There is another series of blunt prongs H4
formed on a plate H5 secured to the under side
of the clamp 6G. These prongs extend at right
angles to the main section of the plate and are
parallel to the prongs H3. This double row cf
prongs H3, II 4 tends more securely to grip the
substance and provides contact with the sub
stance at spaced distances along its length. The
clamp is operated by the handle Hiì which ex
40
tends between the clamp and the arm 'II.
The thickness of the slice is regulated by means
of a gauge plate H‘I, which gauge plate is car
ried by rod I I8 extending through the base and
provided with an adjusting nut H9 at the oppo
site end thereof, whereby the position of the
gauge plate may be adjusted in a plane parallel
to the cutting plane of the knife by turning the
nut H9 which is threaded on the rod H8 and
prevented from longitudinal movement in any
suitable manner. An additional guiding rod (not
50 shown) is provided for the purpose of preventing
turning movement of the gauge plate about the
axis of the rod H8.
The operation of the slicing machine is as fol
lows: The substance to be sliced, if it is fairly
long, is placed upon the substance carriage 55,
and the operator moves the prongs H3 and H4
into engagement with the upper side of the sub
stance by grasping the handle IIB and forcing
the clamp downwardly along the uprights 68 and
60 13.
While doing this, the clamp is retracted
against the action of the spring 92, and after
the substance has been engaged by the clamp,
the spring pressure will urge the clamp and sub
stance toward the cutting plane of the knife.
When the carriage is in retracted position, as
shown in Fig. 1, the substance will be forced
against the gauge plate I I1, and when the oper
ator pushes the carriage forward by manual
pressure applied to the handle 63, the substance
70 will engage the slicing knife and a slice will be
out from the substance and deflected by the de
fiector 29. The cutting edge of the knife is best
shown in Fig. 5 in cross-section, and this cross
seetion is such that on the substance side of the
75 knife, the face thereof tapers slightly away from
which it must move before it passes into engage
ment with the broad surface of the guard plate.
This prevents the forward edge of the guard
plate from tearing portions of the substance
therefrom and forming scraps, as happens with
the usual type of guard plate in which the for
ward edge thereof is not rounded. In actual tests
on this machine in cutting a soft substance which
readily forms scraps in the lusual slicing ma
chine, I find that almost a negligible quantity 20
of scraps is formed and that bleeding of the sub
stance is minimized. One reason for this is the
narrow face I2I of the knife directly behind the
cutting edge thereof. This face is approximately
not over 1/2 inch in width.
Another reason for
this is that the guard plate is brought close to
the peripheral edge of the knife and prevents the
substance from rubbing on the face I2I thereof.
A still further reason for this highly desirable re
sult is the sloping of the face I2I away from the 30
edge in a direction slightly away from a plane
parallel to the direction of movement of the sub
stance carriage. Ordinarily, with a spring feed,
the substance is caused to rub against the edge
of the knife, and this results in larding of the
knife. However, this is prevented in my machine
due to the very small amount of space between
the peripheral edge of the knife and the guard
plate which form points of contact for the sub
stance Whieh substantially prevent the inter 40
mediate portion of the substance from engaging
the knife and thereby causing larding thereof.
The particular knife construction herein shown
is disclosed and claimed in applicant’s divisional
application Serial No. 637, filed January 7, 1935,
which issued into Patent No. 2,055,818 on Sep
tember 29, 1936.
After the substance has been sliced to such an
extent that only a small part of the substance
remains, the clamp is moved away from the cut
ting plane of the knife to such a position that
the plate HI can be brought down behind the
rear end of the substance and then into engage
ment with the rear end to cause a feeding of
the substance by the spring pressure of spring
92.
The distance the substance may be moved
toward the cutting plane of the knife is regulated
by the adjusting screw 98, and the adjustment
is such that the forward ends of the prongs H2
are just outside of the cutting plane of the knife 60
so as to clear the knife when the clamp is at its
extreme forward position towards the cutting
plane of the knife. This position, however,
brings portions of the clamp beneath the grind
ing unit, and it is for this reason that the guide
95 is provided so that the clamp will be drawn
away from the cutting plane of the knife if
moved to its uppermost position.
In Fig. 9 I have shown a modified form of rib
in which the portion of the rib adjacent the cut
ting plane of the knife has a cross-section such
that two sides thereof slope equally with respect
to a vertical line erected to the substance surface.
In Figs. 14, 15, 16, and 17, I have shown a
modified form of my invention in which the sub
2,126,380
stance support |22 is provided with similarly
shaped ribs to those shown in the form of my
invention illustrated in Figs. 1, 2, 3, etc., but in
this form of the invention, the pusher plate |23,
which corresponds to the plate ||| previously
described, is carried by a tubular member |24
slidable within the handle |25 which in turn is
attached to the substance support by means of
the arms |26 and |27. The arm |2'| is provided
10 with an opening |28 adapted to receive the pin
|29 secured to the substance support. The arm
|25 is slotted at |30, and a lug |3| on the sub~
stance support is provided with a stud |32 on
which there is threaded a wing nut |33. This
wing nut |33 has a conical seat |34 0n the bot
tom thereof adapted to be arranged within a con~
ical seat |35 formed in the edge of the opening
forming the slot |30. With this arrangement it
is only necessary to loosen the wing nut |33 a
20 small amount and then swing the clamp and
entire feeding mechanism about the pin |29 as
a pivot until the arm |26 is free of the stud |32,
and then lift the entire clamping mechanism
vertically.
25
.
'I‘he plate |23 is provided with prongs |33`
which are formed the same as the prongs ||2
in the first form of the invention described. The
plate is also provided with a guide rod |31 ex
tending through an opening in the downwardly
30 extending lug |38 formed on the handle |25. The
coil spring |39 is arranged within the tubular
member |24 and handle |25 and abuts at one
end against the plate |23 and at the other end
against a plug |42 screw threaded into the handle
35 |25. This plug can be removed and the spring
removed for replacement or repair. Also, the
spring tension can be regulated somewhat by
this plug. The amount of movement which may
be given the plate |23 by the spring |39 is lim
40 ited by the washer |4| secured to- the end of the
guide rod |31 by the screw |42. A handle |43
secured to the rear side of the plate |23 is pro
vided for the purpose of drawing the plate back
wardly against the action of the spring. The
plate `|23 in this form of the invention is used
only when cutting short ends of substance, and
for the purpose of preventing the operator from
positioning his hand too close to the substance,
5
relative to said knife in a path substantially par»4A
allel to the cutting plane of said knife, a plu
rality of ribs on said substance support, means
for feeding a substance along said support to
ward the cutting plane of said knife, said ribs Ul
having sharp substance engaging portions ad
jacent the cutting plane of said knife, of a cross
section such that one side of the rib is substan
tially perpendicular to the substance support and
the opposite side thereof is at a substantial angle
to the substance support, the perpendicular side
of said rib facing in a direction toward the cut
ting edge of said knife, and said ribs having a
cross-section remote from the cutting plane of
said knife which is substantially arcuate in cross
section to provide a broad substance engaging
portion which will not cut into the substance.
2. A slicing machine comprising a substance
support and a slicing knife movable relative to
each other, a pusher plate for feeding the sub
stance along said substance support toward the
cutting plane of said knife, and a plurality of
prongs having flat sides thereon which are nor
mal to the plate and arranged at an inclination
to the supporting surface of said substance sup 25
port, the inclination being upwardly and toward
the cutting edge of the knife, whereby the action
of the knife upon the substance during the slic
ing operation forces the substance against said
ñat sides and downwardly against the substance
support to more firmly hold the substance on
said substance support during the slicing oper
a ion.
3. In a slicing machine, the combination with
a slicing knife, of a substance support, a pusher n
plate arranged substantially parallel to the cut
ting plane of said knife in a path> substantially
parallel to the cutting plane of said knife, and
a plurality of prongs on said plate normal to
the plate and extending toward said cutting plane .
and having flat surfaces thereon facing in a
direction toward the cutting edge of said knife
when the knife and support are in inoperative
positions relative to each other, the inclination
of said fiat surfaces being in a direction up
as well as to impart a uniform pressure to the
substance while it is being sliced. When a long
wardly away from the surface of said support
and toward the cutting edge of said knife, where
by the action of said knife on the substance as
the slice is being cut forces the substance against
the flat surfaces, and the flat surfaces in turn
piece of substance is to be sliced, the wing nut
react on the substance to force the same into
is loosened and the feeding means is removed.
The substance then can be grasped by the oper
ator and advanced toward the cutting plane of
the knife and against the substance support.
In the modification of the invention shown in
Figs. 14 to 17 inclusive, there is provided a handle
|44 for actuating the substance support, but it is
not necessary that this be used when the feeding
mechanism is in position, for the handle |25
may be grasped and used as a means for recip
rocating the substance table.
Obviously, those skilled in the art to which
this invention pertains may make various changes
in the construction and the arrangement of the `
parts shown in the drawings without departing
from the spirit of this invention, and the right is
hereby reserved to make all such changes as
fairly fall within the scope of the following
70 claims.
Having thus fully described my invention, what
I claim as new and desire to obtain by Letters
Patent is:
1. In a slicing machine, the combination with
a
slicing knife, of a substance support movable
75
ñrm engagement with the substance support.
4. In a slicing machine, the combination with
a slicing knife, of a substance support movable
relative to said knife in a direction substantially
parallel to the cutting plane thereof, a clamp
mounted on said substance support for feeding
the substance toward the cutting plane of said
knife, said clamp being movable in a direction
toward the cutting plane of said knife and lim 60
ited in its movement toward said cutting plane
to such an extent that the side of the clamp near
est the cutting plane can move to a point im
mediately adjacent the cutting plane of said
knife, but not into the cutting plane, so as to
prevent engagement of the slicing knife with the
clamp, said clamp being also movable upwardly
away from the cutting plane of said knife to an
inoperative position, and means including a ver
ticallyr extending guide member mounted on the 70
substance support and means on said clamp co
operating with said guide to displace the clamp
laterally from the plane of the knife when the
clamp is raised to inoperative position, whereby
a liberal clearance is provided between the clamp 75
6
2,126,380
and the cutting plane of said knife when ‘said
clamp is in inoperative position.
toward'the cutting plane of said knife, mounted
on said member which is rigidly and releasably
secured to said substance support.
9. In a slicing machine, the combination with
a substance support, of a slicing knife, means for Cl
moving said knife and support relative to- each
5. In a slicing machine, the combination with
a slicing knife, a substance support movable rela
tive to said knife, and an obstruction projecting
beyond the cutting plane of said knife, a clamp
on said support movable toward the cutting plane
of said knife and having the end of its path of
movement toward the cutting plane while in op
erative position closely adjacent to, but not en
other, feeding mechanism:` for feeding the sub
stance toward the cutting plane of said knife,
comprising a member releasably secured to said
support, a spring-pressed plate mounted on said 10
tering the cutting plane of said knife, whereby
member for engaging the substance and feeding
the same toward the cutting plane of said knife,
substantially all of the substance may be sliced,
said clamp being also movable away from said
substance support to an inoperative position, a
guide for moving the clamp simultaneously away
from the cutting plane as the clamp moves to
and a plurality of prongs on said plate extend
ing toward the cutting plane of said knife and
having substantially fiat faces thereon facing in a
direction toward the cutting edge of said'knife
when the support and knife are in their inopera
tive positions relative to each other.
inoperative position to clear the said obstruction
in all positions of adjustment of said substance
support, said guide including a vertically extend
ing member mounted on the substance support,
and means cooperating with said guide to dis
place the clamp laterally from the plane of the
knife when the clamp is raised to inoperative
position.
10. In a slicing machine, the combination with
a substance support, of a slicing knife, means for
moving said knife and support relative to each
other, feeding mechanism for feeding the sub
stance toward the cutting plane of said knife,
comprising a member releasably secured to said
support, a spring-pressed plate mounted on'said
member for engaging the substance and feeding
the same toward the cutting plane of said knife,
6. In a slicing machine, the combination with a
substance support, of a slicing knife movable rel
ative to said support, a gauge plate for gauging
the thickness of the slices to be cut, a feeding
mechanism for feeding the substance toward
and a plurality of prongs on said plate extending
toward the cutting plane of said knife and hav
ing substantially flat faces thereon facing in a 30
direction toward the cutting edge of said knife
the cutting plane of said knife, a member'rigidly
and releasably mounted on said support, having
an operating handle thereon extending substan
tially at right angles to the cutting plane for use
in m‘oving said feeding mechanism from- said
support and for operating said support when it
is desired to move said knife and support rela
when the support and knife are in their in
operative positions relative to each other, and
said substantially fiat faces sloping in a direction
upwardly away from the supporting surface of
said support and toward the cutting edge of said
tive to each other, a pusher plate, means for
knife.
11. A slicing machine comprising a food pusher
plate, a plurality of spaced prongs having fiat
faces on said pusher plate extending substantially
mounting the pusher plate on the handle for slid
able movement thereon toward the gauge plate,
and means for yieldingly urging the pusher plate
with respect to the handle in a direction toward
at right angles from the plate, said prongs being
longerv vertically than the horizontalV width
thereof, and inclining upwardly and away from
the cutting plane of said knife.
'7. In a slicing machine, the combination with
a substance support, of a slicing knife movable
relative to said support, a gauge plate for gaug
the operator’s end of said slicing machine.
ing the thickness of the slices to be out, a feed
ing mechanism for feeding the substance toward
the cutting plane of said knife, a member rigidly
and releasably mounted on said support, having
an operating handle thereon for use in moving
said feeding mechanism from said support and for
operating said support when it is desired to move
said knife and support relative to each other, and
a pusher plate slidably mounted with respect to
said handle and yieldingly urged in a direction
toward the cutting plane of said knife, said yield
ing means comprising a spring arranged within
said handle and abutting against a rigid portion
of said handle and said plate, said plate having a
(50 tubular extension thereon slidably arranged
within said handle for guiding said plate.
13. In a slicing machine, a slicing knife, a car
riage reciprocable across the face of the knife hav
ing a substance support, a gauge plate having the
substance engaging surface thereof arranged sub
stantially parallel to the cutting plane of the
knife, spaced ribs formed on the substance sup
port extending toward the knife cutting plane,
the tops of said ribs adjacent the cutting plane
being relatively sharp and the rib tops remote
from the cutting plane being relatively rounded,
_
8. In a slicing machine, the combination of a
slicing knife and a substance support movable
relative to each other, of a feeding mechanism
(S 5 releasably mounted on said support, Vhavingv a
rigid portion thereof releasably secured to said
support, said releasable securing means compris
ing a pair of arms on said member, a projection
on one of said arms receivable within a recess
formed in said support, a clamping screw mounted
on said support adapted to be received within a
notched portion on the other of said arms and
clamped against said arms to hold the same in
juxta-position with respect to said support, and
a yielding presser plate for feeding the substance
>
12. A slicing machine comprising a rotaryA
knife, a reciprocal carriage, a food pusher adapted
to push food along the carriage toward the cut
ting plane of the knife, a handle for operating the
carriage, and a coiled spring carried in said han
dle and independent of movement of said handle
for urging the pusher toward the cutting plane
of the knife.
GU
a feeding member for feeding substance along
.
the substance support of the carriage toward the
cutting plane, the tops of said ribs adjacent the
cutting plane being lower than the rib tops
remote from the cutting plane.
14. In a slicing machine, the combination with
a slicing knife, a substance support mlovable‘r'el
ative to said knife, and an obstruction projecting 70
beyond the cutting plane of said knife, a clamp
on said support movable toward the cutting plane
of said knife and having the end of its path of
movement toward the cutting plane while in op
erative position closely adjacent to, but not en 75,
7
2,126,380
tering the cutting plane of said knife, whereby
substantially all of the substance may be sliced,
said clamp being also movable away from said
substance support to an inoperative position, a
cam member fixed to said carriage adjacent the
cutting plane and a member on said clamp to
Contact said cam when the clamp is moved to a
position adjacent the cutting plane whereby
should the clamping element be raised from the
substance support it wil be moved away from the
cutting plane to clear said obstruction.
15. A slicing machine comprising a substance
support and a slicing knife movable relative to
each other, a pusher plate for feeding the sub
stance along said substance support toward the
cutting plane of said knife, and a plurality of
projections having flat sides thereon which are
normal' to the plate and arranged at an in
clination to a supporting surface of said sub
stance support the inclination of the flat sides
guiding the end of the substance toward the sup
port when the action of the knife upon the sub
stance during the slicing operation forces the sub
stance against said Ílat sides of the projections 10
and downwardly against the substance support
to more firmly hold the substance on said sub
stance support during the slicing operation.
JOSEPH FOLK.
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