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Патент USA US2136118

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Nav. s, 1938.
P. c. PALMER
ABPÀRA‘TUS FOR TREATING‘FDOD Í‘RODUCTS
Filed Jan; '24, 1935
2,136,118
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INVEN-ron
Pau/ C. >,0a/mer:
ATTCDRNEYá`
Nov. 8, 1938.
P. c. PALMER f
2,136,118
APPARÁTUS FOR TREATING FOOD PRODUCTS
Filed Jan. 24, k1956
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INVENTOR
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Nov. 8, 1938-.
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P. c. Faun/IERl
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2,136,118
APPARATUS FOR TREATI'NG FOOD PRODUCTS
rFiled Jan. 24, 193s
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INVENTOR
Pau/ C. 10a/mer;
BY` MK '3H
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ATTORNEYS
Nav. 8, 1938.
P. c. PALMER
2,136,118
APPARATUS FOR TREATING FOOD PRODUCTS
Filed Jan. 24, 1956
6 Sheets-Sheet 5
AM
.
INVENTOR
` Pau/ C. Par/mer:
BY ma; »fag
ATTORNEYS
Nov. 8, 1938.
P. c. PALMER
2,136,118
APPARATUS FOR TREATING FOOD PRODUCTS
Filed Jan. 24, 1936 '
6 Sheets-Sheet 6
INVEN-roR
Pcw/ C »0a/mer.
BYMA- AQQ‘
ATTORNEYS
2,136,118
Patented Nov. 8, 193,8.
UNITED sTATEs PATENT OFFICE
2,136,118
APPARATUS FOR TÉIÖI‘JIIIYÄSTING FOOD PROD'
assignor to Duzzel
Paul C. Palmer, Orlando, Fla.,
Corporation, Dover, Del., a corporation of Dela
Waffe
Application January 24, 1936, Serial No. 60,591
17 Claims. (Cl. 91-38)
This invention relates to an apparatus for
treating foodl products such as fruits, vegetables,
nuts and the like, in order to prepare them for
use, storage or marketing.
`
use with any one of a large number of different
reagents including those which evaporate rapidly
'
It is frequently desirable to subject certain
grown fruits, vegetables and nuts, such as kcitrus
and those which tend to become sticky or gummy.
The device also permits a reagent or reagents to
be supplied in varying amounts to the several
treating members of a series whereby the re
fruits, apples, tomatoes, potatoes, pecans, walnuts
and the like, hereinafter classed as “fruit”, to
various treatments or combinations of treatments
10 subsequent to harvesting them, in order to in
hibit and delay their natural tendency to de
teriorate, and to make them more attractive in
appearance. Among such treatments are wash
ing, rinsing, drying, applying a coloring, steriliz
ing, preservative or polishing material to the
agent or reagents may be applied to the fruit
by members having different degrees of satura
tion.
The invention furtherl provides a unified driv
10
ing arrangement which is simple and rugged in
construction, and readily adjustable to varying
requirements of use, and is adapted to drive one
or more, or all- of the moving parts of the ap
paratus from a single source of energy.
Various other features and advantages of the
surface of the fruit, or one or more of these. , In
invention will be apparent from the following
particular. description, vand from an inspection
of the accompanying drawings.
Although the novel features which are be 20
preferably desirable to effect treatment of the l lieved to be characteristic of this invention will
entire surface of the articles without causing be particularly pointed out in the claims append
injury to the surface or accelerating in any Way ed hereto, the invention itself, as to lits objects
the tendency to deteriorate.
and advantages, and the manner in which it may
The present invention provides for the treat
be carried out, may be better understood by re 25
carrying out the foregoing and other treatments,
and especially where delicate, readily injured or
easily deteriorating products are involved, it is
ment of fruit by imparting thereto a combined
forward tumbling and sidewise tumbling motion,
and forcefully contacting all portions of the mov
ing fruit withl suitable treating members which
are adapted to contact the entire surface of
the fruit with a ñlm but yielding pressure,` and
apply a treating material, or otherwise modify
the condition of the surface.
l '
The invention further relates to a simple but
highly efficient treating device for contacting all
portions of the surface of the fruit with a flrm
but yielding pressure while the fruit is being
fed with a forward tumbling and sidewise tumbling movement, and which is adapted to rub
the surface of the fruit, and simultaneously apply
thereto a liquid reagent or reagents or to -operate
`
ferring to the following description taken in con
nection with the accompanying drawings forming
a part thereof, in whic ,
Fig. l is a side elevational view of one form
of apparatus embodying the present invention; 30
Fig. 2 is'a view showing a vertical section taken
along line 2-2 of Fig. 1;
Fig. 3 is a vertical view along the line 3--3 of
Fig. l;
» Fig. 4 is a view showing a substantially hori 35
zontal section taken along the line 4-4 of Fig. 1;
Fig. y5 is a fragmentary view showingy a section
taken along the line 5.-5 of Fig. 4;
Fig. 6 is a top plan View of the cradle consti
40
tuting the conveyor portion of the apparatus;
in conjunction with g other reagent-applying
means for distributing ‘or smoothing a _reagent
Fig. 'l is a fragmentary view, showing a vertical
section taken along the line 1-1 of Fig. 2;
Fig. 8 is an elevational view taken along the
vice also permits he reagent or reagents to be
on the surface of
line 8-8 of Fig. '1;
applied as a series of successive coatings, or as a
spective showing the details of construction of the
composite coating constituted by a series of suc
liquid-fed wipers and their supporting arrange
ment; and
Fig. l0 is a similar view showing the non-fed
wipers and their supporting arrangement; and
the fruit.
The treating de
cessively applied layers._
The invention` also comprises a device for
feeding a liquid reagent to suitable treating mem
bers at a predetermined, readily controllable rate,
relatively free from solid or other impurities
and with a minimum of waste or contamination
_of the reagent, which device may b'e easily
charged with a reagent' or reagents, and readily
cleaned if necessary, and which is suitable for
~
`
Fig. 9 is an enlarged fragmentary view in per
45
Fig. 11 is a somewhat diagrammatic side ele
vational view of a washer embodying the inven
tion.
-
For the purpose of illustration. there is shown
in Figs. 1 to 10 a machine suitable for use as an 55
2
.
2,136,118
applicator for applying to the surface o1' certain
a direction opposite to the direction of rotation
fruits, vegetables, nuts and the like, various reagents, particularly liquids, which may, with
suitable changes, be adapted to carry out other
5 specific operations` such as Washing, rinsing,
of the shaft 42a. »
Also carried on the shaft 10 is a sprocket 85
which drives a chain 86 trained around a
sprocket 81 and under an idler sprocket 88. 'I'he 5
drying, dyeing, polishing and'so forth.
The applicator comprises a framework I having vertical members I2 at oneend, vertical
members` I3 at the other end, top members |4,
10 members I5 extending between members | 2 and
,members I3, and uprights lI6.
A cradle 2, rockably mounted on the frame I,
sprocket 81 may rotate freely on a stub shaft
90 secured in bearing 9|, and having a recess
92 servìngasfa bearing `forthe Shaft 54. C81'
ried on and securedrigidly` to 'the sprocket 81
iS an eccentric arm 93 adjustably Secured by 8 10
bolt 94 extending through a slot 95. 'I'he ec
centric arm 93 may have a cylindrical head
may have a pair of spaced parallel side members
20 and cross members 2|. The cross members
` 96 which is vreceived in a connecting head 91
attached to the end of a connecting rod 98 car
15 2| each carry collars 22 secured to the ends of
a rock shaft. 23 journalled in pillow blocks 24
and 25, supported on cross beams 26 and 21
secured to members I5. Secured to the side
Tying ,at its Other end a COIlIlectÍlig head 99 l5
‘secured to a bracket |00 on the cradle 2 by a
pivot pin |0I. The bracket |00 is secured to
the cross member 2| adjacent one end thereof;
members 20 at their forward ends, are brackets
2o 29 which support a strip 30 extending transversely of the cradle, to which is secured a
screen 3|, as by means of bolts or other fastenings 32.
thusjby reciprocation of the connecting rod 98,
the cradle is rocked about the pivot constituted 2o
by the Shaft 23.
When the motor 60 is energized, it drives the
pulley 6|, the belt 62, the pulley 63 and the shaft
vides a cradle floor for supporting the i‘ood- SDI‘OCket 69- The latter Shaft dI'iVeS the
articles. 'I'he screen 3| may be formed of wire Sprocket 13, the chain 74 and the Sprocket 75.
links or interwoven wires, and has suiiìcient - which latter is secured to the sprocket 16 and
strength to support the fruit, but suilicient flexi-
di'iVeS the chain 11. 'I'he chain 1T in turn
80 bility to permit the formation 0f corrugations or
waves therein, as will be explained more 1n de-
causes the shafts 42a and 42h to rotate in oppo- 30
site directions, and thus the screws are rotated
tail hereinafter. Preferably, the screen 1s of
simultaneously and cause transverse corruga
sufflciently iine mesh to prevent any portion of
any 0f the fruit from projecting through the
tions or Waves to travel in succession longitudi
Rally of the screen 3|, so long as the motor is
35 openings therein, but sufiiciently open to permit
the ready iiow of liquid or gaseous materials
therethrough.
The screen 3|, rests upon aplurality of screws
as, carried by shafts 42a, 42h, journalled in bear‘0 ings 40 and 4| mounted on cross members 2|.
Each screw 38, preferably, is formed with a
energized.
35
The shaft 10 is connected by sprocket 85, and
chain 86 to sprocket 81, which. drives the ec
centric arm 93, and oscillates the connecting
rod 98 to rock the cradle 2 about the Shaft 23
lThe transversely extending, longitudinally 40
travelling Waves formedA in the screen 3|, to
“ 3| and generate longitudinally traveling,'trans-
regularly Shaped articles t0 be tumbled 310118 45
50
Au
clined frame portion and may be energized by
an electric motor 60 driving a pulley 6I, over
n which is trained a belt 62, also trained over a
to av sprocket 69 carried`r` on a shaft 10. 'I'he
u shaft 10 may be journalled in bearings 1|, and'
n
thereby, the conveyor may be designated as an
“ocean wave” conveyor.
The cradle 2 includes a plurality of uprights ‘o
a plurality of liquid-fed wiper devices |22 and
a plurality of noli-fed Wiper devices |23. Dref- 65
carries at its outer end a sprocket 13, over
erably arranged with two or more of the non
which- is trained a chain 14 which drives a
sprocket 15, loosely mounted for rotation on the
fed wiper devices |23 interposed> between suc
cessive of the liquid-fed wiper devices |22.
shaft 23.
'
One- of the liquid-fed wiper devices |22 is
'I’heI sprocket 15 is secured to andmdrives a _ shown more in ~detail in
and preferably 7o
11 trained around a sprocket 18, carried `on the
secured a pair of depending wipers |28. Each
shaft 42a, and around a sprocket 80 carried on
a stub shaft 8|, and passes undera sprocket 19
wiper |26 may be constituted by a sheet of- soft,
_pliant and aœorbent material such as a sheet
1I carried on the shaftv 42b to rotate the latter inV y of 5ar relativelylsoft cloth, and may be securedto 15
3
the trough» |25 by a >strap |21, and one or more
lock nuts |28. Preferably, the wiper |26 is slit
throughout the greater portion of its length to
provide a series of depending fingers |29. Pref
erably each wiper device |22 is constituted by
at least two wipers |26, one of which is arranged
on each side of the trough, and preferably the
fingers |29 of the two respectively are arranged
in staggered relation.
Hanging along the outer side of the rearmost
of the two wipers |26 is aplurality of pressure
elements |30 clamped to the trough by a strap
|3|, which may also be secured by the screws
|28. Each pressure element |30, preferably, may
be constituted by a flexible bag-like member
having a pocket-like portion |33 constituted at
its lowermost end and containing a plurality of
Weighting elements |32 such as shot or other
small articles of relatively high density. The
trough |25 is provided along its apex or bottom
most portion with a series of perforations |34
sets of fingers -all surfaces of the fruit is com
pletely rubbed a large number of times.
The fingers |28 are supplied with treating liq
uid from the trough |25, which liquid drops
through the perforations |34 on to the fingers
|29. When the fingers |29 are pressed into con
tact with the fruit, a small amount of the liquid l
absorptively contained in the fingers is pressed
to the surface of the fingers, and is wiped onto
the surface of the fruit, and pressed into all de
pressions, in the surface thereof. Since the fruit
is moved about while in contact with the fingers,
the liquid thus deposited on the fruit is evenly
distributed over the entire surface of the fruit,
and is smoothed and levelled thereon.
'I'he operation of the non-fed wiper devices |23
is substantially like the action of the liquid-fed
devices |22,‘except that the wiper fingers |29 lare
not supplied with liquid. In this case the wiper
fingers do not add any liquid to the fruit, but
merely distribute and smooth the liquid thereon,
which permit liquid contained withinthe trough
to drop on to the depending wipers |26.
The
îngs of the trough may be closed by end walls
3
and remove any excess which may remain on the
surface.
The liquid-fed wiper devices „|22 are fed from
feeding devices |59a, |5911 and |59c, respectively,
.
The wiper devices |22 may rest in notches
|36 formed in the members |2|, and may be se
cured in position by attaching brackets |31.
The non-fed devices |23 may be supported
from the frame members |2| by oppositely fac
ing bar members |40 and |4|, which may be
secured together by one or more bolts |42 cooper
ating with wing nuts |43. Depending wipers |44,
generally similar to the wipers |26 previously
one of which is illustrated more in >detail in Figs.
'l and 8. Each feeding device comprises a trough
|60 extending between and which may be sup
ported from the frame members |4. Journalled
in bearings |6|, carried on the frame members
I4, is a transversely extending shaft |62 which
may carry a series of wheels |63 adapted to rotate
with a portion of each, in the trough |60. Bear
ing against the periphery of each wheel '|63 is a
described, are secured to the bar |40 by a strap
member |45 and may be spaced from each other
by a block |46. Clamped between the bars |40
and |4| is a pressure element |41 generally sim
ilar to the pressure elements |30 previously de
scribed. The non-fedwiper devices |23 may be
secured by inserting the bars |40 and |4| in
notches |50 formed in the frame members |2|.
Preferably from 2 to 6 non-fed wiper devices
|23 may be provided for each liquid-fed wiper
device |22, depending upon operating conditions.
In order to provide flexibility in the number of
non-fed wiper devices, a sumcient number of
notches |50 are provided in the frame member
|2| to provide the maximum number of wiper
devices |23 desired. As illustrated, three such
sets of notches are provided, corresponding to
each of the liquid-fed wiper devices |22, but only
two such notches of each series of three are
Shown as being employed, the third notch being
left vacant.
Th' lower ends of the depending wiper devices
|22 lie in the path of the articles traveling along
on the screen 3| and the fruit is forced into con
tact with the depending fingers |29 and carried
past the fingers while in contact therewith.
Gl) Owing to their flexibility, the fingers are caused
to drape around and ride over and around the
fruit, as the latter passes through the wipers.
The pressure members, depending alongside of
the rear wiper |26 cause the fingers to bear
against the fruit with a firm, predetermined
pressure, which tends to resist the forward move
ment of the fruit along the screen. This force is
not sufficient to ultimately prevent the forward
movement of the fruit, but only enough to
momentarily halt it and cause it to be rotated
substantially in place for a very short period in
pressure engagement with the fingers. Thus a
positive rubbing of the fruit by the fingers is pro
duced, and in the course of a trip past all of the
scraper finger |64 carrying a bracket |65 pivotally
supported on a shaft |66 carried by a bracket |61.
The bracket |61 is secured to a cross member
|68, supported on brackets |69 attached to frame y
members |4. A coil spring |10 is connected be
tween each scraper finger |64 and the cross mem
40
ber |68, in order to hold the finger securely
against its Wheel |63. Each finger is provided
with a bevel |1| for causing the finger to lie fiat
against its corresponding wheel |63, and each
finger also may be slightly curved to cause any
liquid thereon to flow toward the center thereof.
Collars |12 may be provided for positioning the
fingers upon the shaft |66.
The shaft |62 is preferably driven from the
motor 60, the power being taken from the shaft to
10, which shaft is provided with an extension ’|80
journalled in bearings |8|. The extension |80 is ~
provided with a key |83, and slidably supports on `
its keyed portion a friction member |84 bearingvv
against- a friction disc |85 carried on a shaft |86. 65
The shaft |86 is journalled in bearings |81, and is
resiliently positioned to force the friction disc
|85 against the member |84 by means of a coil
spring |89 bearing against a collar |90 fixed to the
shaft |86. The shaft |86 carries a sprocket |9| 60
which drives a chain |92 trained over a sprocket
|93 carried on the shaft |62.
'I'he friction member |84 is adjustably posi
tioned on the shaft extension |80 by a fork |96
having spaced arms |96 engaging a grooved por (i5
tion |91 of the friction member |84. The forked
member |95 is threaded onto a shaft |98 rotat
ably supported in a bearing |99 and in the frame
member 59. The shaft |98 carries at its outer end
a bevelled gear 200 which meshes with a gear
20| carried on a shaft 202 journalled in brackets
203 and 204, and having at one end a hand wheel
205.
The shaft |62 preferably drives a sprocket 206
over which is trained a chain 201 which drives a
4
2,136,118
sprocket 208.
’I'he sprocket 208 is carried on a
second shaft |62 corresponding to the second
feeding device |5911, which shaft carries a
sprocket 20S driving a chain 2| 0, Whicl'rrotatesv a
|22. A certain amount of liquid flows from the
first trough |60 by gravity through the conduit
sprocket 2H carried on the third shaft |62 cor
il‘eäponding
with the third and last feeding device
5 c.
conduit 22u.v
The shaft |62 is driven from the shaft 10 turned from the third trough |60 to vthe drip
10 through a ~variable speed drive |19, the shaft ' pan 225, which cooperates with the tank 2|_2
|86 and the chain |92,` and the other shafts are
driven by the chains 201 and 2| 0, `respectively.
Upon rotation of the Shafts |62, asidescribed,
tlie wheels |63>are rotated, and‘all portions of
the periphery pass successively into
drops onto the cooperating fingers |29.
The amount of liquid supplied to the troughs
in receiving all of the liquid which drips from
the articles supported on the screen 3|.
,
The _apparatus may be provided with a feed
ing apron~ 25|, which may be supported from
the frame l ' adjacent the front end of the cradle
2, and may be provided with side walls 253. Ad
jacent the rear end of the cradle, and supported
from the frame, there' may be provided a
charge apron 256 having side walls 251.
,
the apparatus may be connected to feeding and
discharging conveyors, or to other treating
devices.
From the foregoing it should be apparent that 20l
Figs.
‘
of liquid treating materials, such
ple, mould-inhibiting materials, shrinkage-in
hibiting materials, polishing materials, coloring
materials and others.
25
Also, the apparatus may
be employed for distributing, smoothing or pol
ishing previously applied materials. Since the
30 ating the hand
the variable speed drive |19.
A liquid tank
rubbing action of the wiper devices .causes the
entire surface of the fruit to be repeatedly rubbed, 30
ñrmly but gently, without injury to the surface.
The apparatus shown in Figs. 1 to 10, and de
scribed above, is not limited to use as- an appli
cator, but, with certain modifications and a1
terations in the structure, or variations in the 35
manner of using, may be employed in other treat
(not shown) may be connected to
the conduit 2|1, if desired.
ing operations as, for example, dyeing, washing,
rinsing and others. One such modification of
-40
'I'he first of the troughs
conveyor 300 carried by a cradle 30|, supporting
liquid-fed wiper elements 302, fed from troughs
connected to the third of the troughs |60 by a
conduit 220; and the third trough |60 is con
nected by af drain pipe 22| to a drip pan 225,
supported on the structural
303. The troughs 303 are supplied from scrapers
304, cooperating with
-45
Extending transversely of the cradle, and se
cured thereto, intermediate the wiper devices 50
2| 6 which may
driving motor 60.
Carried
a. pulley 230 over which is o`n the shaft 64 is
driving a pulley 232 carried trained a belt 23|
on the shaft 233 of
the gear pump 2|6.
A sprocket 235 may be carried on the shaft
|86 which sprocket 235 drives a chain 236, which
is trained over a sprocket 231 carried on ya shaft
233 journalled in the tank 2| 2.
'I'he Shaft 238 ‘
carries a spider or agitator 239, which serves to
66 agitate the liquid within the tank 2|2. A screen
240 may be disposed over, and secured to, the
top of the tank 2|2, to exclude foreign matter,
such as twigs, pebbles, leaves and the like, from
the tank 2 |2.
70
Liquid is pumped from the tank 2|2 by the
gear
A pump 3|1 is provided in the conduit 3|5 for
pumping liquid froin the tank 3|6, and supply
ing it to the header 3|2 under pressure.
A 60
catch pan 322, which receives dripplngs from
the cradle 30| drains into tank 2|6.
A waste pipe 3|8 may be connected to the tank
3|6, and may be provided with a valve 3I9. A
pipe 320 may be connected to a fresh water sup 65
ply (not shown), and may be provided with a
control valve 32|.
`
ÀIn operation, the fruit is deposited on the con
veyor 300 and tumbled therealong, as described 70
in connection with the applicator. A relatively
strong washing solution, as for example a soap
solution, may be supplied by the pipe 301 to the Y
trough 306, and through the agency of the roller
305, and the scraper 304 is fed to the trough 306,
5
2,186,118
rrom, and thus the conveyor itself serves to as
sist in effecting an even disposition of the treat
whence it drops on to the wiper 302. The wiper
applies the composition to the surface of the
fruit, and at the same time scrubs the fruit
with a rubbing action whichY contacts any ad
herent foreign matter, such as spray residue, dust,
oil or the like, and loosens the same.
ing medium on the fruit.
-
The -ñrm but yielding application of a rubbing
pressure to the surface of the fruit, as is iur 5
nished by the Weightedwiper fingers, causes a
very even and complete application of the treat- ,
'
After the fruit passes through the first wiper ing reagent to the surface of the`fruit, and causes
device 302, it is struck by a strong stream of the reagent to be thoroughly forced into all de
relatively weak. cleansing liquid, which serves to pressions in the surfaces, and smoothed and lev 10
10 flush from the fruit any foreign matter which elled thereon. Since the Wiper lingers are formed
has been loosened by the action of the Wiper of a soft, yielding material, there is no liability of \
devices. These operations are repeated by each . puncturing or >~bruising lthe skin or vrind of the
wiper device and each spray. The excess-cleans
articles. The weighted Wiper >elements also mo
ing liquid passes through the conveyor screen, mentarily halt the ,fruit during its progress along 15
on the screen, which causes the fruit to be ro
15 and is collected in the tank 3|6, whence it is re
turned to the header 3l2, in the manner de
tated in place to expose- all portions of the sur
faces to the action of the wipers. This also min
vimizes the tendency of the fruit to be bruised by 20
strgking sharply against other fruit on the screen.
scribed.
‘
,
In order that the cleansing" solution
which
is
supplied to the headers shall not become too con
The several wiper elements provide sufficient Yseg
20 taminated, a certain amount may be drawnl off
from the tank 3I6 periodically. Fresh concen
trated solution may be supplied constantly
through the pipe 301, and sufficient additional
»water may be supplied from the» pipe 320 to
25 maintain the solution supplied to the headersat
a relatively weak concentration.
Thus, after
regation of the fruit into small groups so that
this tendency to injury, due to bumping, is re
pipes 3|0, there will be no foreign matter there“
on, and a desirably small amount of cleansing'
material.
_
,
'
ing material may be supplied solely by the spray
pipes 3I0, the Wiper devices 3|l2,` then serving
35 to distribute the cleansing material and loosen
the foreign matter. If desired, the device may
be operated as a rinser _by supplying clear water
40
~applicator and polisher, above described, may be
several devices may be arranged as a
~ series of separate machines, or a single conveyor
may be equipped with successive cooperating
45 mechanisms to render the several sections a
washer, rinser and applicator, respectively, or
any'combination thereof.
'
and highly flexible means for adjusting the
amount of liquid fed to the Wipers.` Furthermore,
the arrangement is such that any one or more of
the feeding- arrangements can very readily be 30
taken out of operation, or can be speeded up rela
tive-to the other feeding
'
an increase or decrease in the relative amounts
to
the
several
Wiper
devices may l
of'reagent fed
likewisesbe controlled. The yfeeding devices are 35
Well adapted to feed any type of liquid reagent,
and are especially well adapted for' feeding. a
liquid reagent which has a tendency to thicken
or become gummy. There is little opportunity
for any clogging or stoppage of the feeding ar
f
Various combinations of the washer, rinser,
made.
The
V
arrangements so that I
The structure shown in Fig. 1l may be modi
fied to adapt it for other uses, o? may be oper
ated in various ways. For example, the cleans
to the spray pipes 3I0.
-
Y~ The devices for feeding a treating liquid to the 25
° wiper elements permit‘ a very closely controllable
j the articles have passed the last of the spray
30
duced to a minimum.
>
The novel arrangement for supporting and
transporting the fruit for treatment causes a
tumbling movement of the fruit along- a more or
less vserpentine path, and causes all of the sur
` faces of the fruit to be 4exposed for treatment
during the source of a single trip along the con
veyor. Inasmuch as the scipen which supports
55 the fruit does not move to any'extent relative
thereto, and 'does not grip nor strike the fruit
in any way, ybut merely causes it to move by
40
rangement- in spite of the fact that the liquid
reagent used may become very sticky or thick.
In any event, the arrangement provides for quick
and easy cleaning thereof, and hence the ar
rangement is especially desirable for use with 45
any reagents Which are diflicultly handled in pre
vious types of treating apparatus.
The repeated application of relatively small
quantities. of treating material, accompanied by
the repeated smoothing and distributing. action, 50
deposits on the ‘_fruit a thin, smooth, compact and
closely adherent film or` coating, completely en
veloping all portions of the surface of the fruit.
Thus the coating may be a composite coating
formed by a plurality of successively applied and
intermixed films, or by aj plurality of [separate
and distinct layers, depending upon the nature of
the reagent or reagents, and the manner of ap
reason of the general wave-form'assumed by the
plying _the same._
.
ñciently smooth and uniform to prevent any
it may, with simple changes,'be varied consider
ably to accommodate itself to varying conditions 65
of use and modification of the apparatus. In
The unified driving arrangement is not only
60
screen, the fruit is not subjected >to bruising, v simple to construct and compact,'thereby permit
60 puncturing or other injury. , A
`
_
ting the apparatus to be contained xand supported
Furthermore, the surface of the screen is suf
on a relatively small framework, but is such that
possibility of the fruit being injured as is the
case where certain other types of varying devices
65 are used which subject the articles to more se
vere abrasion. The screen is sufficiently open to
permit liquid or other treating media to pass
therethrough, and therefore there is no oppor
tunity for the fruit to pick up an undesired and
asmuch as all of the driven elements of the ap
paratus are driven from a single prime mover,
the apparatus may readily be moved from place
to place, and it can be operated any place where
there is a-suitable source of electric current. It
will be obvious that it“will be possible" to drive
the apparatus with other types of energy than
70 uncontrolled quantity of the treating reagent
while moving over the screen. Furthermore, the
gentlevibration of the fruit, caused by its mo - «electric current,-provided a suitable prime mover
tion along _on the` screen, causes any considerable is substituted for the electric motor shown. In 75
'Il
excess of treating reagent to be shaken there
6
2,136,118
any Íevent,.the present arrangement permits the
apparatus to be connected by a single connection
` to the source of energy.
While certain novel features of the invention
have been disclosed and are pointed .out in the
annexed claims, it will be >understood that var
ious omissions, substitutions and changes may be
made by those skilled in the art without depart
10
ing from the spirit of the invention.
What is claimed is:
’
l
l. Apparatus for _treating fruit comprising a
support, an inclined rockable member for sup
porting fruit, means mounting said member on
said support, and means for rocking said mem
15 ber laterally on said support, whereby said fruit
is moved forwardly and from side to side on said
member.
_
‘
2. Apparatus for treating fruit, comprising a
support, an inclined, flexible member for sup
20 porting fruit, means mounting said member on
said support, means for generating transverse,
longitudinally travelling waves in said member,
and means for rocking said member laterally on
said support, whereby said fruit is tumbled for
25 wardly along said member and simultaneously
tumbled laterally.
3. Apparatus for treating fruit, comprising a
support, a rockable cradle, a flexible member
carried by said cradle for supporting fruit, means
30 for generating a series of transversely extending,
longitudinally travelling waves in said member,
means for rocking said cradle laterally, whereby
said fruit is tumbled longitudinally and trans
member, and means for treating said fruit in
cluding a transversely extending row of ñexible,
depending wiper elements, and means for sup
plying a treating liquid to said wiper elements.
8. Apparatus for treating fruit, comprising a
supporting member therefor, means for advanc
ing said fruit on said member, means for treating
said fruit including a trough-like reservoir ex
tending transversely across and above said mem
ber and having an opening in its bottom Wall, a 10
flexible wiper element depending from saidvreser- '
voir, and means securing said wiper element to ,
said reservoir adjacent said opening, whereby
liquid from said reservoir will drip onto said wiper
element.
'
'
'
9. Apparatus for treating fruit, comprising a 15
supporting? member for said fruit, means for ad
vancing said fruit on said-member, means for ap
plying a liquid to said fruit, a reservoir for said
liquid, a pick-up roll rotating in said reservoir, 20
a take-off element engaging said roll for remov
ing said liquid therefrom, and for supplying said
removed liquid to said applying means whereby
liquid is picked up from said reservoir as a rela
tively thin ñlm and is removed from said roll by
said take-01T element and supplied to said ap 25
plying means at a predeterminedrate, and means
for urging said take-off element against said roll
with a predetermined controllable pressure.
10. Apparatus for treating fruit, comprising a
supporting member for said fruit, means for ad 30
vancing said fruit on said member, liquid-apply
versely on said member, and means adjacent said ing members disposed adjacent said member,
35 member and lying in the path of movement o1' means for picking up liquid at a predetermined
the fruit on said member for treating said fruit. yrate and depositing it in an inclined member as
4. Apparatus for treating fruit, comprising a a substantially homogeneous film, a feeding mem
support, a cradle rockable on said support, a
iiexible member carried by said cradle for sup
40 porting fruit, a plurality of spaced, parallel, lon
gitudinally extending screw elements engaging
the lower face of said member for generating
transversely extending, longitudinally travelling
waves in'said member, means for actuating said
45 screw elements, and reciprocable means connect
ed to said cradle for rocking the same to cause
the fruit to be progressed along and tumbled
about on said member.
.
5. Apparatus for treating fruit, comprising a
50 supporting member for the fruit, means for im
parting a combined forward-tumbling and trans
versely-tumbling movement to said fruit, means
for treating said vfruit including a Vseries of ,flexible
wiper elements depending into the path of move
55 ment thereof, and means associated with said
elements for pressing the same against the fruit
under a yielding pressure, thereby to contact the
same with a ?lrm but yielding pressure as it is
60
fed therepast.
6. Means for treating fruit, comprising inclined
means including a supporting member for caus
ing fruit to travel forwardly, means for intimate
ly imposing impedance to the forward movement
of said fruit in the form of transverse waves in
65 said supporting member, means for inclining the
supporting member at an angle in excess of the
angle of repose of the fruit to cause the same to
be displaced from its path of forward movement,
and means including depending iiexible Wiper ele
.70 ments adjacent said supporting member for ap
plying a liquid to the travelingfruit.
'7. Apparatus for treating fruit, comprising a
supporting member forsaid fruit, means for im
partinga tumbling and side-to-side rolling move
75 ment of said fruit along a tortuous path on said
ber, means for transferring said liquid from said
inclined member to said feeding memberl and
means for conducting said liquid from said feed-v
ing member to said liquid-applying members.
11. Apparatus for treating fruit, comprising a 40
supportfa cradle rockable on said support, drive
means for rocking said cradle, a flexible support
ing surface carried by said cradle for supporting
fruit to be treated, drive means for generating
waves in said surface, a series of wiper elements
positioned to treat fruit on said support, means
for feeding a liquid to said wiper elements, drive
means for actuating said feeding means, and uni
tary means for actuating all of said drive means.
12. Apparatus for cleansing fruit, comprising
means for imparting a combined forward-tum
bling and lateral-tumbling movement to said
fruit, a flexible contact member lying ,in the path "
of movement of said fruit and engageable there
with for effecting a wiping thereof, means for
applying yielding pressure to saldi contact mem
ber, and means for supplying a ñuid medium to
said contact membe .
'
13. Apparatus for treating fruit, including
60~
means for transporting the fruit along a-prede-_
termined path, a trough of generally V-shaped
cross-section disposed above said conveying means
and extending transversely of the path of move
ment of the fruit, a flexible wiper element 65
clamped to and depending from each side of said
trough and lying in the path of movement of said y
fruit, an opening in said trough intermediate the
points of attachment of said Wiper elements, and
means for supplying a treating liquid to said 70
trough.
-
-14. Apparatus for treating fruit,
including
means for transporting the fruit along a prede
termined path, a trough disposed above said con
"
75
2,136,113
7
comprising a plurality of flexible dependent wiper
veying means and extending transversely of the ' elements having their lower ends free, a plurality
path» of movement of the fruit,- a flexible wiper of weighted pressure elements for said wiper ele
element suspended from each side of said trough ments, and means for disposing articles to» be
and lying in the path of movement of said fruit, treated against said wiper elements', whereby said
an opening in said trough intermediate the points pressure > elements force said wiper elements
of attachment ‘of said wiper elements, a weighted against said fruit with ra substantial force.
pressure element suspended kfrom said trough and i
17. Apparatus for washing Iruitand like arti,
adapted to apply pressure to said wiper element cles comprising a. conveyor‘for advancing and ro- 10
when the latter is displaced from normal suspend
tating said, articles to expose different portions
ed position, and means for supplying a treating of the surface of the articles for treatment, ñexi
ble wiper elementsl spaced from the conveyor and
adapted to engage with the articles being treated,
a Wiper- device comprising a plurality of ilexible, means for pressing said wiper elements against
fibrous, wiper segments arranged in spaced rows, said articles, and means for projecting washing 15
Weighted pressure elements associated with said ' fluid against said articles during their passage
wiper elements respectively, and means for car
along said conveyor.
PAUL C. PALMER.
rying articles to be treated successively through
said rows of wiper elements.
16. Apparatus for treating fruit, a wiper device
liquid to said trough.
-
15. Apparatus of the type described, including,
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