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Патент USA US2121350

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FEEÜINC-L- MEGHANISM FOR SLÍGING MACHINES.
Filed April 2, 1934
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FEEDING MECHANXSM FmÁ .'fLïcING MACHINES
Filed Apriì
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ENVENTORI
JOSEPH FOLK
BY
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Jun@ L
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' J, FOLK
FEEDIN .MECHANISM FOR SLICING MACHINES
Filed April 2, 1934i l
5 Sheßts-Shee‘k 5
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âN'k/ENTOR:
Patented June 2l, 1938
2,121,350
“f‘UNm-:D STATES
PATEN-ToFFIcE ,
» FEEDING MECHANISM FOR
`
MACHINES
.
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salclNG -
"'
Joseph Folk, La. Porte,- Ind., assignor to U. S.
Sli'cing Machine Company, La Porte, Ind., a
corporation of Indiana
f
.
Application April 2, 1934, serial No. 713,582
(Ci. 14s-_10m
’
‘ 1ofclaims.
`
»@This invention relates to slicingtmachines, "and
particularly to feeding mechanism for slicing ma
chinesi “Moreï specifically, the invention relates
tovthat.` type `.of feeding mechanism used on slic
Fig. '7 is a detail sectional `View on the lines
1-.-..-’I of Figs. 4 and 5.
'
`
,
`
i
The particular slicing machine herein shown
comprises a base I, over which the undertable 2
ing machines .which `have a reciprocal carriage and carriage 3 is adapted to be reciprocated.~5
anda substance orfood pusher which operates "'I'he carriage 3 is mounted in suitable guide
atirightangles to the movement of the carriage means 4, 4 rigidly supported by the base I. A
knife 5 _carried by a knife support bracket 6 is
rotated by means of a motor 7. A gauge plate 8
and pushes ‘thesubstance against a gauge plate.
The primary object of the present invention
'n is' èto provide'fn‘ew‘and improved means `for mov-> ` is `mounted to the left o_f the food or substance «1‘0
ing the" pusher plate only when`~ïthe substance supporting surface 9, and is movable laterally
`ori-,the food carriage is directly opposite the gauge sothat its substance supporting face IB will lie
plate.---~
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-
"1.
.
v
‘
.
in a plane parallel to the plane of the cutting
~
‘"*Another object ofthe invention is to provide
slicing ‘machine feeding mechanism which com
knife 5.
’
` prises normally inactive means which are ren-` lknob
` ‘"dered active `when‘the carriage is moved to a
‘predetermined position relative to the position
of the slicing machine, whereby the said means
e
en
.
_`
The gauge plate 8 »is movable by means of the 4§15
II to properly position the gauge plate
into proper relationship to the cutting blade of
the knife. The gauge plate and the manner in
which it „is operated or controlled is well known
will become' operative and >move‘the substance in .this art, and further description thereof will 1,20
not be made.
~
.
against the `gauge plateyand then remain inac
Thecarriage 3 including itsffood table 9 i
Ative‘cr inoperative until the carriage again at ` manually
reciprocated forwardly and rearward
tains a predetermined position.
y
'
‘A further object is to provide feeding mecha
`ly by means of a handle I2. A slice receiving
plate or tray I3 is positioned to the lefthand side ,25
'nism which feeds ,the substance a predetermined ‘ of the machine to receive the slices which are
“"distanoe, and _then remains inactive or inopera
_tive `_to prevent 4further `movement of the sub
2.30
strançe toward the cutting plane of the knife
"during reciprbcation o-f the substance across the
knife,` and `*thereby prevent smearing of the
cut from the vsubstance by the knife 5. A trans- -
verse rod i4, Figs. 3, 4 and 5, is rigidly supported
tothe undertable 2, `and has a slide bearing I5
slidably` mounted thereon. A pusher plate Iliwao
has an operating arm Il which is fastened by
knife by the substance and overcome undue fric- ` screws I8 to a ñange on the slide bearing I5. A
roller or slide IS, Fig. `3, is fastened to the pusher
non.
,Numerous other objects and advantages will plate, and thisy roller andthe slide rod I4 con
beapparent throughout the progress of the fol
stitute a guiding means for the pusher plate in„35
lowing specification.
`
,
„The accompanying drawings illustrate a se
lected embodiment of the invention, and the
views therein are as follows:
`
`its movement at right angles to the movement
of the carriage andtoward the cutting edge of
the knife. A friction plug 20, Fig. 4, is arranged
in a boss (2| formedk on the slide bearing, and this
Fig. 1 is a detail plan View .of an'improved
¿slicing machine, and embodying `thei11vî€nllìon.
Fig. 2 ,is aydetail elevation of «the slicingma
‘ .chine‘shown in Fig. 1 looking in the direction
from theoperator’s stances ,
.
Fig. 3 isa detail longitudinal section taken on
plug is adapted tc ride along the surface of them)
rod I4, there `being a Vconripression spring 22
mounted‘behind the friction plug to create a cer
tain amount of friction or sluggishness in the
movement of the slide bearing I5 or pusher plate
I6 to prevent movement of the pusher by jar45
,o Fig. 4 isadetagil `plan section showing the po
or by the pulling of the knife on the substance
or by other accidental forces. A projection 23
¿sition lof .the parts during `the'forward. movement
is formed `on thevundert'able 2, upon which there
`0i the carriage.
is pivoted a plate 24 by means'of a pivot 25, Figs.
3 ande. _A spring-26 is fastened to a pin 21 on .150
, ~
.
«
- . Fig. `5 `¿is ya „similar‘view-,showin-g some of the
mechanism controlled 4by a cam positioned at'the
the p1ate124, and to a pin 28 formed on the `un
„end _of~.the¢machine toward the operator.
`dertable 2 and Anormally tends to `urge the plate
24 to thefright, Figs. 4 and 5. A roller 29 is‘
fastened by a pin 30 to -the extreme endv of the
>plate 24. This pin 30 is formed with an enlarged ¿155
,.lFig. 6 is a detail plan `section .showing the po
4»_sitian of. the operating @rod which `causes move
ment of the pusher plate.
2
y
Y
,
2,121,350
shoulder »3l which loosely ñts in an oblong slot
32 in the undertable‘2.
A cam 33 having a cam surface 34 is mounted
by screws 35 to the upper surface of the frame
I of the slicing machine. When theundertable
2 is moved from the end of the cutting stroke
toward the operator and the roller 29 approaches
the cam 33 and engages the cam vsurface 34, the
plate 24 will be moved to the left, against the
tension of the spring 26, from the position shown
in Fig. 4 to the position >shown in Fig. 5. At the
, beginning of the cutting stroke, that is, the for
ward movement of the carriage, the roller 29 will
disengage the cam 33, and the plate 24 will be
15 returned to its normal original position (Fig. 4)
by the tension spring 26. '
A slide rod 35 having ratchet teeth 31 is mount
ed in bosses`38 and 39-ñxed to the undertable
2.
These bosses provide bearings for the slide
20 rod.> This rod 36 has a pin 40 fixed thereto which
is guided in a slot 4I formed in the boss or bearing
39’. The slide rod 36 is adapted to have limited
slidable movement in the bosses or bearings 38
and 39, but is prevented from rotating due to
the pin and slot connection 4l) and 4 I , respectively.
A roller 42 is fastened to the slide rod 36 by
a pin 43,l and a block 44 is fastened by suitable
pins 45 to the plate 24. A tension spring 46
has one end fixed to the plate 24 asr indicated
Aat 41, and its other Vend to the pin ’40. The
-spring 46 is adaptedto pull the slide rod 36 to
the left, Figs. 4 and 5, and the plate 24 to the
right to make contact between the vroller 42 and
the block 4.4. W'hen the roller 29 on the plate
24 contacts with the cam surface 34 of cam 33,v
the plate 24 is pivoted on its pivot screw 25 and
causes the slide rod 36 to move simultaneously
with the plate 2,4 and in the same direction.
The slide bearing I5 is formed with an arm 48
.4.0 into which thereis threaded a hollow ystud 49
backed by a nut 59, Fig. '7. One end of the stud
49 is provided with a slot 5| and yguides a'pin
52 Whichguides a plug 53 having a tooth 54,
Fig. 7. The tooth 54 is adapted to engage the
4.5 teeth 31 on the slide rod 36, therebeing a spring
55 arranged in the recess 56 in the stud 49. This
spring 55 is adapted to urge the plug 53 toward
`the slide’rod 36 so as to keep the tooth 54 in
engagement with one 'of the ratchetf'te'eth 31 on
y5.0 the slide rod 36. A handle 51 is integrally formed
with the plug 53, and is adapted to extend for
>wardly a predetermined distance out of the hol
low threaded stud 49. This handle 51 permits
the tooth 54 to be retracted from the slide rod 36
so that ythe slide bearing I5 may be slid along
the slide rod I4, to the right, Figs. 4 and 5. As
the pusher plate I6 is directly connected to the
slide bearing I5 by means of the arm I1, the
pusher plate I6 will be moved along with the
.60 slide bearing I5., Therefore, when the handle 51
is pulled outwardly to disengage the tooth 54 from
the teeth 36, and the'handle 51~shifted to the
right, Figs. 4 and 5, the pusher plate I6 will
bearing I5. Therefore, slidable movement of the
slide rod 36 to the left, Figs; 4 and 5, will cause
slidable movement of the slide bearing I5 in the
same direction. The slidable movement of the
slide rod 36 is stopped when the substance moved 5
by the pusher plate I6 engages the gauge plate
ü.
When the roller 29 engages the cam face 34
due to the movement of the carriage 3 upon
its guidathe roller 29 will force the plate 24 to
continue to move to the left, Fig. 4, to the posi 10
tion shown in Fig. 5. The movement of the plate
24 to the left is against the tension of the springs
26 and 46. The movement of the plate 24 to the
left causes the block 44 to be moved away from
the contacting roller 42 and the pusher plate
will be movedthrough the sliding movement of
the rod 36 until the substance on the substance
table 9 engages the gauge plate 8. The move
ment of the pusher plate is caused by the tension
of the spring 46 which moves the slide rod 36 20
lvvhen'the plate 24 is shifted by reason of the
roller 29 engaging the cam surface'34. When
the substance table 9 is moved forwardly, that
is, away from the operator, the roller 29 on the
plate 24 will move out of contact with the cam 25
surface 34, and the plate 24 will be returned to
its normal position by the spring 26 from the
position shown in Fig. 5 to the position shown
in Fig. 4. This return movement of the plate 24
will move the block 44 into contact with the roller 30
42 and the slidey rod 36 will be again shifted to
its normal initial position. However, the return
movement of the slide rod 36 will not affect the
position of the slide bearing I5 because the
tooth 54 will merely slide over the teeth 31 on
the slide rod 36. Therefore, when the carriage
is moved to a predetermined position, the plate
24 will be shifted because of the engagement of
the roller 29 with the cam surface 34. The shift
ing of the plate 24 on its pivot 25 will cause
the ’spring 46 to shift the slide rod 36 a prede-'l
termined distance to the left. The shifting of
the slide rod 36 to the left Will cause the slide
bearing I5 to also shift because of the engage
ment of the tooth 54 with one of the teeth 31
on the slide rod. The shifting of the slide rod 36
is governed by the thickness of a slice, that is,
the slide rod 36 will shift a predetermined dis
tance to the left until the substance on the sub
stance table being pushed by the pusher I6, en
gages the gauge plate 8. When the carriage 3
is moved forwardly and the roller 29 is off of the
cam surface 34, the spring 26 will return the
plate 24 to its normal position, and the block
44 will be moved into engagement with the roller
42 and return the rod 36 to its initial position.
However, the return movement of the rod 36 will
not affect the slide bearing I5 nor will it move
this slide bearing I5, because the teeth 31 on the
slide rod I6 will slide over the tooth 54.
35
40
45
50
55
60
The parts are so constructed so that the cam
34 will cause the roller 29 to move a distance
‘greater than the greatest thickness of a slice.
Therefore, there will always be some idle move
ment in the plate 24, which movement is meas 65
ured by the gap between the block 44 and the
slices to be cut from the substance, and the push
er plate I6 fastened to the slide bearing I5 pushes- roller 42. Therefore, if the maximum movement
the substance against the gauge plate. When of the roller 29 is for instance l inch, and the
the roller 29 on >the plate 24 engages the cam maximum thickness of a slice to be cut is 3A inch,
surface 34, the tension of the spring 46 will pull the gap between the block 44 and the roller 42 70
the slide rod 36 to the left from the position shown will be 1A; inch. If, however, only a 1A, inch slice
in Fig. 4 to the- position shown in Fig. 5. Since is to be cut, and the maximum movement of the
` the teeth 31 are cut along one sider ofthe rod
roller 29 remains the same (1 inch), the gap be
36, they are always in contact with the tooth 54, tween the block 44 and the roller 42 will ber 3A
which is» fastened to the plug 53 on the slide
75
also move to the right.
The gauge plate 8 gauges the thickness of the
inch.
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.a1-anoto
`The `movementoi the platem24tfrnay f be re
a very. short period.
A period, howeven‘zisfsufñ
stricted or limited by the length of the slot32.
'cient to cause theçsubstance to . come into‘contact
However, the.` movement of the ,. plate Á24 A'can :be
with ‘the> gauge plate.
limited in'several‘fways, forinstance, the shoulder
"
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Y
».Changesemay be‘ma’de in the form, construc- '
~3I,on the pin .36 could >stop >against the outer _ tion-and arrangement of >the parts without .de
end of- the slot 32, or the pin 49 could bestopped parting from the invention or sacrificing any of
bythe end `of the slot 4I, or the end ofthe `slide
itsadvantages, and the right is. hereby‘reserved to
rod 36 could be stopped against the'bottomof
make all such changes'which fall within‘the scope
of the following claims.
v10
`The invention is hereby claimed as; follows:
_1. In aslicing machine having a basefa. car
riagehaving a substance supporting surface and
.adapted kto be reciprocated >across 'said base,.a
rotaryfknife supported in juxtaposition in rela
tion to the movement of the carriage to cut slices4 .15
from :thesubstance during reciprocation ofthe
carriage, a igauge plate having a face paralleltto
_ bearing or boss 39.
»It is preferable to allow foranlittle clearance
-betweenthe shoulder 3|.of pin 30 and the ,slot
.3.2, ylas well as a little clearance between thepin
.MlY and the end ofthe slot 4| »so that the endof
the sliderod 36 may be adjusted relative tothe
r1.5 bottom- of the boss or bearing 39,` and therefore,
.throughthis adjustment cause theroller to a1
ways bein proper adjusted position .relative Vto
»the cam surface 34.
uThe ‘boss 39'may be` made. slidable in `respect
to' `the'undertable 2 as vshown in Fig. 6. >In this
ñgure,:tlie` boss 39 is slidably inserted in> the >web
of .i theundertable asiindicated atx59, Fig. 6.
A
liìberplug ûllimay be inserted in .the endof the
.boss to provide an .abutment `against -whichrthe
„as end 6I of the‘slide. rod 36fmayengage. The fiber
plug-«66 may'rbe secured to the boss 39 byxmeans
of a pin 62. .A set screw 63 is -threaded into the
Iundertable‘and,engagesthe boss @39 to hold the
boss in. its proper adjusted position.
:The front of I the carriage, Fig. 2, is provided
fwithwa slot.‘.64'to permit the handle 51fto be op
;erated‘to .manually-shift the `slide bearing l5.
‘The’ »invention provides a simple efiiciently op
erated means for preventing the movement-'of
.35 -thewsubstance during reciprocatîon of the car
riage,‘and thereby reduces the amount‘of smear
which would otherwise be causedl bythe substance
‘beingcontinually urged toward the knife. The
.spring pressure which advances the substance
against thefgauge plate is only active while the
substance‘is opposite'to gauge plate, and‘then
onlyiwhile the‘substace is to move a short dis
tance over the gauge plate. «A great amount of
`smear -caused by the substance under vpressure
rubbing over the gauge plate and knife is prevent
ed. `The construction herein disclosed‘prevents
continual urging of the «substance toward “the
cutting plane` of `the knife'or againstthe knife,
and therefore, no brake means are required to
thecutting-plane of the knife, a pusher platefor
shiftingv thef substance along said vsurface toward
the gauge plate, a slide bearing formoving said
.pusher‘plata `a rod adapted to shift the Nslide
bearing, a spring connected to the rod to'shift
the rod >when tensionis lapplied to thespring, 'a
pivoted plate to which the springis connected, a
camzmounted on'the base and shifting said plate ~:
duringfreciprocation of the carriage, theshifting
of said‘plate putting a tension on theispring, the
tension on the `sprin‘g'shifting the rod, and `mov
ing‘theslide bearing and consequently the'pusher
plate.
«l0
2. In a slicing machine having a base, a car;
riagev having a substance supporting vsurface *and
'adapted' toI be reciprocated across said base, -a
rotary knife 'supported in juxtaposition in rela
tion‘tc the movement of the carriage to cut slices
from the substance during reciprocation ofthe
carriage, a ‘gauge plate having Va face parallel-to
the cutting plane of the knife, a pusher plateîfor
shifting the substance -along. said surface toward
the gauge plate, a slide bearing for moving said
pusher plate, .a >rod adapted to shift the slide
bearing, .a spring connected to the rod to shift the
rod when tension is applied to the spring,` `a
pivoted plate to which'the spring is` connected, a
cam mounted on` the base and Vshifting said‘plate
during reciprocation of the carriage, the shifting
of said plate putting a tension on the spring, the
tension on the spring shifting :the rod, >moving
the slide bearing and consequently the‘pusher
plate, and means for manually `disen'gaging >the
4%
.overcome `or 4.prevent the urging yaction `ofthe
.'springduringnormal reciprocation of the car
vslide ‘ bearing from the rod whereby the >slide
riage. lThe present -invention provides means bearing and consequently the pusher plate maybe
which are normally inactive, andare `rendered moved` ina direction away from-.the‘gauge` plate.
3. In a slicing’machine having a base, -acar
active :only at a predetermined period >covering
aiveryshort'space of time. -In other'words, the _ riage having a substance supporting surface and ‘1vsis
adapted to be reciprocated across said base,„a
«spring pressure has no effect on the pusher dur
ing’normal'operation. However, when the. roller rotary knife supported in juxtaposition in rela
`2âlfstrikes` the cam surface 34, theslide rodfposi» tion tothe movement of the carriage torcut slices
from the `substance during reciprocation ofc‘the
tively moves vthe slide bearing l5 and conse
quently the pusher plate I6. Therefore, there is carriage,y a gauge plate having a face parallel to
no'constanturging action 'tending to urge the the vcutting plane of the knife, a'pusher` plate for
I'substance'toward the `cutting plane of theïfknife, shifting the substance along said surface 'toward
‘thew'gaugefplata a slide bearing 'for moving said
except that the very commencementof the cut
ting stroke when the substance is _pushed against pusher plate, a rod adapted to >shift the Aslide
et theßgau'ge-plate by the positive movement of the bearingfa -spring connected to `the rod A11o-‘shift is
rod, the spring 46 causes the movement of the the rod when tension is applied toy the spring, a
rod 36 only when the plate 24 is swung on its pivoted plate to which the spring isy connected, a
pivot, the plate 24 being swung on its pivot only cam mounted on the base and shifting said plate
by the positive action of the roller and the cam during reciprocation of the carriage, the shifting
70 surface 34. As soon as the roller 29 leaves the of said plate putting a tension on the spring, the 70
cam surface 34, the springs 26 and 46 return tension on the spring shifting the rod, moving the
slide bearing and consequently the pusher plate,
`the plate 24 to its initial position. The inven
a retractable member carried by the slide bearing
tion, therefore, comprisesI means which are nor
for normally locking the slide bearing to the rod
mally inoperative, but which are rendered oper
..75 ative only at a. predetermined interval, and for to prevent movement of the slide bearing on the 76
4.
2,121,350
rod in one direction but permitting movement in
for yieldingly urging the feeder forward, and
the opposite direction, said retractable member
adapted to be manually operated to dis'engage
the same from the rod whereby the slide bearing
may be manually moved in said opposite direction
means operatively controlled by the relative
transverse movement of the substance feeder
and the knife for disconnecting a portion of said
urging means from the feeder when the feeder
and away from the gauge plate.
4. A slicing machine comprising a gauge mem
ber, a slicing knife, a substance feeder, said sub
reconnecting said portion to the feeder when
the feeder is aligned with the other of Said
is aligned with one of said members and for
stance feeder and said slicing knife being rela
tively movable transversely whereby to bring the
members.
substance feeder alternately into alignment with
ber, a slicing knife, a substance feeder, said sub
stance feeder and said slicing knife being rela
tively movable transversely whereby to bring the
substance feeder alternately into engagement
with the gauge member and the slicing knife, 15
said substance feeder being movable forward to
ward the gauge member and slicing knife through
a given range of feed travel, resilient means for
yieldingly urging the feeder forward, said means
the gauge member and with the slicing knife, said
substance feeder being movable forward toward
the gauge member and slicing knife through a
given range of feeding travel, means for yield
ingly urging the feeder forward, said means be
ing inactive and without effective energy with re
spect to the feeder when the feeder is aligned
with the slicing knife, and means operatively con
trolled by the relative transverse movement of
the substance feeder and the knife for supplying
effective energy to the urging means to operate
the feeder when the feeder is aligned with the
gauge member.
5. A slicing machine comprising a gauge mem
ber, a slicing knife, a substance feeder, said sub
stance feeder and said slicing knife being rela
tively movable transversely whereby to bring the
substance feeder alternately into alignment with
the gauge member and with the slicing knife,
means yieldingly urging the substance feeder for
ward toward the gauge member when the feeder
is in alignment with the gauge member, means
for balancing the force exerted by said urging
means on the feeder, and means operated by the
urging means for operating said last mentioned
means When the feeder is aligned with the slicing
knife.
'6. A slicing machine comprising a gauge mem
ber, a slicing knife, a substance feeder, said sub
stance feeder and said slicing knife being rela
tively movable transversely whereby to bring the
substance feeder alternately into alignment with
the gauge member and with the slicing knife,
energy receiving means for yieldingly urging the
substance feeder longitudinally forward toward
the gauge member when the feeder is in align
ment with the gauge member, and means opera
tively controlled by the relative transverse move
of the substance feeder and the knife and
59 ment
operable when the feeder is aligned with the
gauge member to increase the energy of said
urging means, said last means being operatively
connected to the urging means to decrease the
65 energy of said urging means when the feeder
is aligned with the slicing knife.
7. A slicing machine comprising a gauge mem
ber, a knife member, a substance feeder, said
substance feeder and said knife member being
relatively movable transversely whereby to bring
the substance feeder alternately into alignment
with the gauge member and with the knife mem
ber, said substance feeder being movable forward
toward the gauge member and knife member
through a given range of feeding travel, means
8. A slicing machine comprising a gauge mem
10
being without a sufficient supply of energy with 20
respect to the feeder when the feeder is aligned
with the slicing knife, and means operatively
controlled by the relative transverse movement
of the substance feeder and the knife for sup
plying an additional increment of energy to said 25
resilient means to operate the feeder when the
feeder is aligned with the gauge member.
9. A slicing machine comprising a gauge mem
ber, a slicing knife, a substance feeder, said sub
stance feeder and said slicing knife being rela 30
tively movable transversely whereby to bring the
substance feeder alternaitely into engagement
with the gauge member and the slicing knife, said
substance feeder being movable forward toward
the gauge member and slicing knife through a 35
given range of feed travel, resilient means for
yieldingly urging the feeder forward, said means
being without a sufficient supply of energy With
respect to the feeder when the feeder is aligned
with the slicing knife, means operatively con 40
trolled by the relative transverse movement of
the substance feeder and the knife for supplying
an additional increment of energy to said re
silient means to operate the feeder when the
feeder is aligned with the gauge member, and 45
means for limiting the increment of energy
added during each slicing operation.
l0. A slicing machine comprising a gauge
member, a rotary slicing knife, a substance sup
porting carriage reciprocable transversely of the 50
knife and alternately into alignment with the
gauge member and the slicing knife, a substance
pusher carried by the carriage and movable to
ward and from the knife, means for yieldingly
urging the substance pusher toward the knife, 55
said means being inactive and without effective
energy with respect to the substance pusher when
the pusher is aligned with the slicing knife, and
means operatively controlled by the transverse
movement of the carriage for supplying effective 60
energy to the urging means to operate the sub
stance pusher when the pusher is aligned with
the gauge member.
JOSEPH FOLK.
65
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