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Патент USA US2502162

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March 28, 1950
"r. F. LILLY
Filed Aug. 16, 1943
"5’ Sheets-Sheet 1
March 28, 1950
1". F. LILLY
Filed Aug. 16, 1945
s Sheeté-Sheet 2
March 28, 1950
*r. F. LILLY
Filed Aug. 16', 1943
5 Sheets-Sheet 3
March 28, 1950
'r. F. LILLY
Filed Aug. 16, 1943
5 Sheets-Sheet 4
March 28, 1950, _
‘Filed Aug. 16, 1943 f
'5 Sheets-Sheet 5'
Patented Mar. 28, 1950
Thomas F. Lilly, Memphis, Tenn; Teresa K.
‘Lilly executrix of said Thomas F. Lilly, de-
Application August'16, 1943, Serial No. 498,840
20 Claims. (Cl.;241--60)
My invention relates to an ice picking and
grading machine and it is an object of the same
to provide, in connection with a machine having
ice picking means and a rotary grading sieve, a
Fig. 4, an elevation of the inside of a screen of
modi?ed form,
Fig. 5, a section of the same,
Fig. 6, a partial vertical section on line 6-6 of
means for maintaining the same at a low tem
perature so as to prevent accumulation of ice on
Fig. 1, on an enlarged scale,
or about the sieve, such means being termed by
of Fig. 1, seen from the left in Fig. 6.
me sub-cooling means.
Fig. '7, a partial side elevation of the machine
Such machines are com
Fig. 8, a horizontal section on line 8—8 of Fig. 1,
monly operated in vaults wherein the tempera
ture is low, e. g., about 30° F., but frequently the
Fig. 9, a side elevation of a modi?cation, partly
in section,
temperature is allowed to rise as when a vault
door is allowed to remain open for a- short time.
Warm air rushes in and the ice particles on the
screen melt and later freeze again, clogging the
screen and loading it with ice. Such clogging and
loading interfere in obvious ways with proper
Fig. ‘10, a vertical section on line l0—-l0 of
Fig; 9,
Fig. 11, a section on line I l-—l l of Fig. ‘10,
Fig. 12, a partial vertical section, showing the
relation of a bin to an automatic weigher, ,
Fig. 13, a part section of another modi?cation,
operation of the machine.
Since there are usually refrigerant coils at the
Fig. 14, a detail of parts shown in Fig. '13.
top of such valults I have taken advantage of such
In the drawings, reference character 20 indiq
cooling of the upper air as is caused by the cool 20 cates a hopper or chute into which cakes of ice,‘
ing coils to provide means that will keep the
which may be of the conventional size of approxi
temperature of the machine normally down to
mately 11 in. x 22 in. x 3 to 4 feet high may be
approximately 10° F. below that of the remainder
inserted and picked to pieces by the rotary pick
of the vault, regardless of conditions outside the
drum 2|. Such blocks are commonly scored and
split so as to make blocks weighing from 25 to 100
Another object of the invention is to prevent
pounds, and these or other sizes may be used in
any melting of the ice fragments on their way
machines of various sizes built according to my
to the grading means. For example, in one form
invention, as may be desirable on account of the
of my invention the ice fragments produced by
size of the machine or for other reasons. It isv
the picking means are conveyed to the grader 30 to be understood that various of the expedients
by an elevating conveyor. By preventing access
herein disclosed for treatment or handling, of
of heat'or of warm air to ‘the ice piecesin their
travel adhesion and regelation are prevented and
“picked” ice'are equally applicable to ice formed
in small pieces or fragmented in any other man
the pieces remain at desired size and are" pre
vented from sticking to parts of the mechanism‘.
Another object of the invention is to provide
means for protecting the machine against drip;
ping of water and ice particles thereinto when the
coils above it are being defrosted, thus avoidingv
contamination of ice in the machine and
of the screens.
her than as herein disclosed, and that terms such
as “cracked,” “chipped” and “broken” are, there-,
fore, used in a descriptive sense, rather than in a
limiting sense. The parts above referred to may
be as in my Patent No. 2,237,078, but in a pre
ferred form of the invention as herein disclosed
I provide an elevator for feeding the broken ice
to the grader 22, said elevator comprising an end
Another object is to provide means for prevent;
less band or belt trained about a pair of pulleys
24, 25 which are solid so that no ice fragments
ing accumulation of ice on parts of the ma-,
chinev where such accumulation is objectionable,
whether due to collection of broken ice or to freez-v
can enter their surfaces and interfere with their:
action on the band 23. Solid pulleys also con‘
ing of water or watery vapor.
‘Referringto' the drawings, which are made a
part .of this application and in which similar
tribute to neat-ness of appearance and to cleanli
ness of the machine. and so make for good sani-,
reference characters indicate similar parts:
Fig. 1 is’ a side elevation of one form of my in-; vention, partly in section,
Fig." 2. a vertical cross section of the same on
line 2~_2 of Fig. 1,
Fig.3, a horizontal section on line 8--3'of
The lower pulley is driven by suitable
means independent of other driven parts, such as
a separate motor or, as here shown, by a belt
pulley 25' driven by a separate motor (not shown).
The belt carries buckets 26 so formed and co
ordinated with the speed of the linear travel of
the .belt as to avoid any sliding of the ice frag-_
55 ments on the buckets, which would give rise to
friction and so might cause melting of the ice.
For this purpose the bottoms of the buckets have
an inclination of about 7° from the horizontal,
ice to the ?rst bin 40, larger fragments to the
and the conveyor is run at a speed of about 250 ft.
per minute. The ice fragments are taken up on
the bin 43.
a floor of a bucket and travel to the top of the
conveyor and are thrown into the rotary sieve,
all without any slipping or sliding on the bottom
of the bucket or any other part of the elevator
of approximately 30° to the horizontal leading to
during such travel.
next bin 4|, and so on, the largest pieces being
discharged through the end of the cylinder into
Each of the bins has a floor at an inclination
a wide opening 44. I have found that ice frag
ments will slide freely down an incline of this
angle while a floor so inclined will bear the bulk
of the weight of the ice. The greater part of
Each run of the conveyor is enclosed separately
the weight being borne by the floor, the ice will
in a casing comprising vertical sides 21, 21 and
be muchless likely to arch over and the wide
ends 28, said casing being open at 29 to permit '
angle produced by the low angle of the floor
the ice blocks to enter, and being also open at 30,
makes it almost impossible for the ice to arch
as further explained hereinafter.
I 15 over. This feature, together with the sub-cool
The rotary grader has at each end a rim 3!
ing features hereinafter discussed, are effective
with a friction ring 32 of rubber orother suit
~ to prevent coalescing or regelation of the ice
able composition encircling it in some such. man
' fragments in the bin and consequent interfer
ner as that shown in Fig. 11, where an-annulus
' ence with the free ?ow of sized ice out of the
3Ia that is U-shaped in cross section is welded '20 bin as it is taken out of the port 44. When the
to a-?at ring 31b that is bolted to another ring
bins are underneath the graders it is at least as
3lc of L-shaped section that is secured to the
important‘ to have the cold air flowing through
end of the screen 22. Preferably the tire 3|
the bins as through the sieves, in order to keep
contains wires 32'. The friction rings or tires
the ?uent ice in dry condition so that it will
at each end of the screen rest on friction wheels
or~gears 33 of any suitable material and con
struction, said gears being mounted on shafts
‘314, 34 and being connected by a belt and driven
by a separate motor (not shown) thus friction
ally driving the grading cylinder. The advan—
tages of such a drive in a machine of this char
acter are several. Thus the rubber tires contrib
flow freely.
Hinged to the upper end of the frame there
are ?at side and end pieces of sheet metal, can
vas or other suitable sheet material, preferably
inclined outwardly and upwardly and being de
tachably connected to cooling coils above the
machine by means comprising upper blocks 46
and lower blocks 41 connected by bolts 48 bent
ute immeasurably to the quiet, smooth, clean
at their lower ends to form hooks adapted for
running of the machine, the use of noisy, clash~
ing gears and chains being-thus avoided; in the 35 engagement by links 49 secured to said side and‘
end pieces. Preferably the side members are
operation of the machine ice frequently forms on
formed as two pieces 50 and 5| hinged together
the screen and loads it down or it forms between
at 52, the lower piece being hinged to the ma
the grading cylinder and some of the fixed parts
chine frame at 53 and adapted to fold over and
or pieces of ice fall between such members. In
any such event the rotation of the cylinder is re 40 cover the machine as indicated in dotted lines
at the upper part of Figs. 2 and 10, thus protect
sisted, and may even be impossible on account
ing the machine when not in use and also pro~
of. the bridging of ice between rotary and fixed
tecting it against falling ice and water during
parts. If the machine is built- with a central
shaft and spokes extending therefrom to the pe
riphery the spokes become twisted and broken
under such conditions. Frequently also the
screen is torn, and in any event there is loss of
time and costly repairs are often called for be
l'ore running can be resumed. But when the
grading cylinder is frictionally driven itv can
merely stand still in case of such accidents as
just described, and remain so until the obstruc
tion has been removed.
The body of the screen is preferably of such
material as described in my previous patent, but
I havealso shown in Figs. 4 and 5 a screen 35 of
a different variety, said screen consisting of sheet
defrosting of the coils above it.
The end members are hinged at 55 to swing
downward out of the way of the f-oldable side
members. Ba?les 55, 56 cause the descending cold,
air coming down from the coils to flow about and
through the cylinder and hinder‘its progress
downward through the bins and so out of the
machine. Vertical side and end members can
be used with considerable success, and they are
obviously an improvement over the usual prac:
tice of having no conduit whatever to guide and
con?ne the downward ?owing cold air from-the
coils 45, but by slanting the side and end mem
bers outward at an angle of about 45° the cool—
metal with triangular apertures 36 formed by
ing action is increased to four or ?ve times as;
striking up triangular projections 36' each out
much as that produced by the use of mere ver
along two edges 31, 38 and bent inwardly of the M tical side and end members.
screen, as shown at the bottom of Fig. 4, the
The above arrangement, which I'term a sub
cooler, has another function besides that of keep
third side of the projection remaining attached
the body of the sheet. These projections are
ing the screen clean and free to move and to sift
arranged with their bases lying in a spiral run
freely, in that the portion 56 of the casing above
nlng along the inner periphery of the cylindrical
the picker is so formed as to serve as a conduit
for cold air to pass downward to the opening at
29, and into the casing of the conveyor where
the buckets create an upward current of cold
air that is carried along with the broken ice‘to
ther advantage of low cost as compared with a 70 prevent melting. At the other side of the con
veyor cold air passes through opening 3lJyand is
woven screen of wire or ?at strip material. Of
carried down by the descending buckets, keeping
course, as in a mesh screen, the openings are
smaller in that section of the screen next to the
them dry and cold so that contact therewith will
not melt the ice chips picked-up by the ascend
outlet of the elevator, and increasingly larger
screen, and-thus they serve both to provide aper
tures for escape of ice fragments, and-alsov as
meansfor feeding the mass of fragments axially
of ‘the screen. A screen of this type has the fur
in‘successive sections, so as to‘ discharge snow
ing buckets. The cold air in passing out through?
2,502,’! 61
chute .20 helps. to congeal any moisture on the
the ‘formation ‘of "ice in ‘and about, the ‘guides
ice blocks as they are fed to the chute.
A substantial part of the cold air from the
for such doors. Normally ice will form at the
upper ends of the doors and along and about
coils ?nally passes out through ports 44 of the
ice vbins and in its passage through the bins it
the guides and hinder or even prevent move
ment of the doors to open or close them, but by
blowing air under pressure along the side edges
of the doors formation of ice there is prevented.
keeps the crushed sized ice pieces dry and cold,
thus preventing cohesion of fragments and ad
hesion thereof to the contiguous surfaces of ‘the
Since the guides are open at their inner sides
bins. It is very difficult to keep sized ice in
an air current from each guide will blow across
storage and it must be kept at a temperature 10 the upper end of the corresponding door and‘
below 32° F. in order to keep it dry. If ‘the tem
effectually prevent formation or collection of ice‘
perature rises the ice becomes damp, absorbs
there, and in case ice has formed before the
odors, collects. bacteria and algae, rusts' every
current starts the blast will remove the ice.
thing lt comes in contact with, ‘and mats to‘
The pick drum may be driven as in my patent
gether so that it becomes very diflicult to handle.
above mentioned, but preferably it is driven by
These difficulties are avoided, as to the bins 40
means of a motor having two or even more speeds,
to. 43, by the use of the sub-cooler. _As above
this» motor being indicated at 'I3_ as connected
stated the sized ice, being kept at a low tempera‘
through reducing gearing ‘I4 to the shaft ‘I5. or
ture, will flow freely. In previous arrangements
the pick drum 2!, the object being to increase
a ?at-bottomed bin was used and the ice was
taken out with a shovel, or else a funnel-shaped
bin was utilized, but in the case of ‘such ex
, the possibilities of the machine to make ice in
pedients there is continual diniculty due to the
fact that the crushed ice “bridges" over the out
let and so stops the flow. With my formof bin
much labor and delay are avoided.
I have shown at 63 in Fig. 2 a conventional
ice-carrying bag under the outlet 44 of a bin,
but of course any other carrying or conveying
duced will be in one range of sizes, while if it
is driven at a higher speed the range of sizes
will be ‘different, i. e., at the lower speed ‘the
pieces will run larger, or through a range of
such'size as'desired by the user. Thus by driving
the drum at one speed the ice fragments pro
larger sizes, whereas at the higher speed the
pieces will run smaller, i. e., through a range
of smaller sizes. This is a very practical ad
vantage, as numerous sizes are called for by
means may be used.
I" have found that very important advantages
may be derived in my machine from the use of
different customers to meet different situations
or ‘for varioususes, and it is secured in varying
currents of air other than the slow-?owing
thermosyphonic current in the main conduit
for that end, as well as by the means disclosed
degree by the several expedients herein disclosed
provided by parts to, El, 54, 56, etc., said current
passing down from the cooling‘coils through the
fragmentation and grading means and then
in my prior patent.
In the form of the invention shown in Figs. 9
and 1B the parts not speci?cally referred to may
through the dispensing and storage vbins. Thus
be as. in Figs. 1 and 2. In these ‘figures however
by means of an electric fan GI, driven by the
usual fan motor, air may be drawn through an
intake GI’ and forced through either or both of
a pair of conduits I52 and 63'. By means of con-'
duit 62 the air is led into the conveyor and
the sub-cooler body I BI is preferably made of
down on the lower pulley 24.
cloth such as canvas or other similar ?exible‘
material, e. g.. leather, cellophane, etc. Prefer-v
ably the conduit is made as a single funnel-like
member having sheets of canvas stitched to
gether at the corners. The side portions have
at their upper ends battens I 02 provided with
links I03 ‘for attachment to the hooks I04 car
ried by the cooling coils, as in the form pre-,
Any small frag
ments of ice that may be caught on the belt are
blown out to the outer side of the belt, ‘but what
is much more remarkable, the air current blow
ing on the pulley keeps the moisture from con
gealing on the pulley and so interfering with its
viously described. The canvas end members may
also be reinforced at theirvupper ends if desired
but are preferably left unreinforced so that they
proper action on the belt, and in case the fan
is started when there is already a coating of ice
can fold in under the battens on the side por
on the pulley the ice will actually be removed
tions of the funnel IGI. At the lower end of the‘
from‘the pulley by the action of the draft of cold
canvas portions they are wrapped about battens
air, and the pulley will thereafter remain free
H15 ~that are secured to side frame angle iron
of ice. 'The current produced by the fan' is also 55 members I06 by bolts I 87 passing through
further useful in that it helps to start the air
posts I58."
?owing downward from the intakes 30 and 64
‘The sieve is driven, as before, by friction rings
(Fig. 1) from the cooling coils 45 through the
32‘ resting on friction gears or pulleys of rubber
elevator and the picker drum 2| and out ‘of the‘
or the'like on driven shafts 34.
chute 20.
Instead of the bins with inclined bottoms I
As a feature that is sometimes desirable I have
have here shown cubical bins I09, "19a, "1%,
shown a swinging door 65 (Fig. ‘1) pivoted at
Hi9c't-o receive the different grades of ice sup
6B and so mounted that it maybe pushed inward
plied by the rotary grader, which are here shown
by an entering block of ice, missing the breaker
as being supplied, by means III] such as in my
bar mechanism shown, at 6.1, and then closing 65 prior patent, with picked fragments of ice. The
again as the block passes beyond the door.
bins are shown as open at one side, though they
The air passing through the conduit "63 goes to
may be closed by means including suitable doors
a- horizontal tube I53. (Figs. land 2) from which
or gates. A useful feature of such bins is a
branches I53v lead downward, to guides '10‘ mounted
swingablepartition valve III on one or more of
on the front wall ‘II. "(Fig ‘8) forming part of" Til the partitions, here shown as hinged at H2 and
each of the bins 417 to 43,. Doors 12 are slidably
having its position limited by a chain or cord I I3
mounted in each of a pair of the guides ‘Ill. so
as to open the doorways in the bins to the de
sired extent as the doors aregmoved upward. -The
purposevof this construction; is to do away: with‘.
adapted to be fastened in adjusted position in"
any suitable manner. In this showing the binv
1.09 receives .the smallest particles of ice (known
in'the trade" as snow ice) the greaterv part ofthe‘
smallest fragments falling through the sieveat'
block of‘ ice or mass of ice fragments and-‘rout
through the perforated bottom and on out ‘of
once, and increasingly larger sizes rattling pro
the opening I33 in member I3I or out at some
gressively farther along the sieve ‘to the next
other point, as the case may be, quickly drying
bin or to other bins still farther from the inlet.
- If it is desired to vary the proportions of ice 5 and/or freezing the moisture remaining on the
ice, whether it be a block or a mass of fragments.
discharged respectively to bins I09 and N91; the
It will be obvious to those skilled in the art‘
position of the swingable partition is changed,
and it‘will be obvious that this may be varied-to
any desired extent, from a position where only
a very small amount of the very ?nest ice frag
ments (snow ice) falls into bin I09 and a much
greater quantity goes to bin I09a, to a position
where a much larger proportion of the ice is sup
plied to bin I09. Similar arrangements may be
vmade ‘with respect to the other bins, but the
arrangement is particularly felicitous with re
spect to bin I09 because this machine makes so
very little snow ice.
" vIn Fig. 12 I have shown an automatic weigh
ing machine for weighing and dispensing weighed
amounts of ice, vthe machine being shown as ar
ranged‘ in cooperative relation with a bin H5
having a port I I6. The bin may be identical with
that many changes may be made in the devices
of my invention and ‘in the various features
thereof, and that some of the features may be
put to other uses than those set forth, all with
out departing from the spirit of the invention;
therefore I do not limit myself to what is shown
in the drawings and described in the speci?cai-i
tion but only as set forth in the appended claims.
As one instance of such other uses, the method of
blowing air on‘ a surface where ice is liable to
form may be usefully applied to household refrig
erators to avoid the necessity of defrosting and.v
20 to distribute an‘ even temperature throughout
1. In combination with a machine for reduc-:
ing blocks of ice to smaller fragments, said ma-~
chine being adapted for use in a vault with over-I
those shown in Figs. 1 and 2 except that there is
a catch‘II‘I projecting below the lower end of
head cooling coils, a conduit enclosing normally
the bin in position for engagement with the outer
exposed ice-containing portions of said machine,
ends I I8 of the vanes I I9 of a series arranged be
said conduit extending upward toward said coils
tween disks I20, which disks are located at the‘
so as to form a closed conduit for conductingv
ends of the vanes and coact therewith to form
compartments to be ?lled withv ice from the bin. 30 cold air to: said machine, said conduit being
At‘the intersection of the vanes the entire rotary
collapsible and being so constructed and ar
receptacle which is provided with said compart
ranged as to cover the machine, and the ice'
ments is pivoted at I2I on a beam I22 pivoted in
therein when collapsed, so as to protect the same,
turn at I23 and‘ carrying a counterweight I24
as when the coils are being defrosted.
that is adjustable along the beam and which 36
2. A device for use in a vault with overhead
holds the parts in the position shown until a
cooling coils, comprising means normally expos
quantity of ice is received in the active compart
ing ice to room ‘temperature in the vault, 'a‘
ment sufficient to tilt the beam I22, the amount
conduit surrounding the area in which ice is‘
being predetermined by adjustment of the
normally so exposed, said conduit extending up-'
counterweight I24 so as to dispense any desired 40 ward toward said coils to conduct cold air from‘
weight of ice. When the lever tilts the projections
said coils'to said ice, and quickly detachable
Ill and H8 separate, and then the rotary wheel
means for suspending said conduit from said
is permitted to turn, dumping the ?lled compart
ment and bringing the next in series into position
to be ?lled.
3. A device for use in a vault having overhead
cooling coils, comprising means normally expose.
In the form of the invention shown in Figs. 13
and 14, all parts may be as in Figs. 1 and 2, or as
in Figs. 9 and 10, as may be desired, but an exten
sion is provided on the sub-cooler, said extension
comprising side members I29 connected to the
previously described side members at I30, and an
end member I3I connected to an end member of
the previously described sub~cooler at I32. The
ing ice to the room temperature of the vault and,
a conduit surrounding the space in which ice is‘.
normally so exposed, said conduit extending up
ward toward said coils to conduct cold air from‘
I said coils to said ice, said conduit being collaps
ible ‘into a position to cover said ice and to pro»
tect it while said coils are being defrosted.
extension is of such size as to admit a vehicle of
desired character, such as a wheelbarrow, a ?oor
cooling coils, comprising means normally expos
ing ice to the room temperature of the vault and
a conduit surrounding the space in which ice is
truck, or a larger truck or even a ?at car, accord
ing to convenience or desire. For this purpose it
is desirable to provide at the lower end of said end
member I3I an aperture I33 of a size suitable to
.4. A device for use in a vault having overhead
normally so exposed, said conduit extending up;
ward toward said coils to conduct cold air from
said coils to said ice, ‘said conduit being made‘
?t around the body of the vehicle intended to 60 of ?exible sheet material collapsible into a posi-‘
be used, or to ?t approximately about the same.
tion to cover said ice.
The utility of this arrangement arises out of the
5. A device for use in a vault having overhead
factthat it is often necessary to wash ice before
cooling coils, comprising means normally expos-_
sizing, either because some ice blocks may not
ing ice to the room temperature of the vault
be clean, or because it is desired to salvage scrap‘ 65 and a conduit surrounding the space’in which
ice collected about a plant and usually not clean."
ice is normally so exposed, said conduit extend
Such-ice is‘ placed in a vehicle with a perforated
ing upward toward said coils to conduct cold
bottom,re. g., the wheelbarrow shown and having
air ‘from said‘coils to said ice, said conduit being
a perforated bottom I26 and an elongated front
collapsible into a position to cover said ice and
member built at a low angle to aid in dumping 70 to protect it when said coils are being defrosted,"
the same, and the ice is washed by means of a
and quickly detachable means connecting the‘
hose or in some other way. After the washing
upper end of said conduit to said coils.
the vehicle is moved through said opening to a
6. A device for use in a vault having overhead
position inside the extension, and cold air ?ows
cooling coils, comprising means normally exposiv
down from above, passing over and through the
ing-ice to- the room temperature of the va'ulti
andiawion'duit surrounding"the,-,space iin'fwhich
rice is- normally-*so'exposed: saidfconduitiextend
"'ing upward toward‘said'coils’to conduct lfcold
‘ air from‘said'coiis'to'said‘icefthe walls! of“said
.to the ‘sizing means, 'a‘ca‘sing enclosing said cori
"veyorya. port at'ithe bottom of said ca'sing'to
receiving ice'from said picker and cold air'from
said conduit; an'd‘a port‘ leading from said con
~~conduit*‘?aring'outward'fromi‘their ‘lower end <5 unit into" the upper end of said casing'for also
" receiving" cold air ‘from said conduit.
‘I tor-their“ upperrend‘so' as‘ to’ embrace a'relatively
‘v‘i'arge *areaadjacent ‘said “cooling coils"an‘d to
“conduct-‘commute fa"re1ative1y small‘area to
‘ i3.v 'I'he‘combination‘with a'room having over
head cooling co'ilsfice picking and sizing ap
paratus in said ‘room, said apparatus comprising
“"7.'In "combination ‘with ‘an ice rmachine‘tio' ice picking means, ice .sizing means elevated
' adapted ' for use‘in‘a‘ vault" having overhead; cool
with relation to ‘theipicking means, and an ele
fing coils, said machine'having“ ice pickingmeans
vating conveyor'for; ice, acasing enclosing said
‘at'a'relatively"low"level, ‘icefg'ra'ding means -at a
conveyor, a conduitcen'closing saidypicking and
Tfelatively ‘ high ' revel, ' means ' for
elevating ‘ -ice_ I
' sizing apparatus?said.conduit. extending ‘down
"fragments from‘ "said‘picking' 'mea'ns tos'aidgrad- "15 ward from said.coilsiand,_.providing a path for
, gravityv ?ow oiv air. coolecLbysaid coils down over
'“ing ‘means, ‘said"e1evating=.means including a
said apparatus, .andl-aportconnecting said.cas—
‘,bucket conveyor‘ 'with separately- enclosed. runs,
iiand'sublcoolin'g “ means comprising aicoriduit
mg about said elevator to the conduitto provide
‘ leading ‘from " said‘ coils~ to‘ the""en‘closure'.'forIthe
a. currentoii cold airaabcut saidconveyor.
Zactive run or said‘conveyorjadjacent saidgpick-t‘go
"'ing means so ‘that‘a'current?f .cold air- is‘ caused
i'by said buckets'to' move'along With the ice'frag
,14. The combination -with.a. room having over
head cooling _coils,,-ice, picking. and sizing >.ap
.paratus in said roomH-said: apparatuscomprising
I merits‘. carried‘ to‘ ‘the ‘grading 'device.
a. ‘A. device ' as' in'claim ‘1:2, , said conduit e150 _
J communicating with‘ the enclosure forlthe-o‘ther
‘run of. said conveyor adjacent-to said grading
.'.devic_e, so'ltha?the“buckets'itherein maintain a
ice , picking means, ice .sizing ,means l elevated
-With relationto theipickinglmeans, ..a-.belt con~
veyor for carrying ice from thenpick-ing means
to , the ., sizing. means, “a . ,conduit enclosing said
; picking and sizing gapparatusmsaid econduit , vex
'current of cold‘ air in contactawith theT-descerid
_ tending . downward.‘ fronnsaid coils ;.and forming
'J-ing‘ bu'ck'e'ts, as arid'for"the',purposes s'et'vforth.
T9. ‘In a vaultfthe combination of-over-head
.a conduit vfor;,gravity.c?ow-uof a:current-of cold
air from . said-,coils cover 3581C}. . =.machin_e, ~upper
‘cooling c'oils, means"for.exposing ice ll¢to~room
-. and lower pulleys supporting; said-;conv.eyor,',-and
temperature in ‘the vault, aldemountable con
.> a fan connecteditotdraw colm'airzfromzsaid con
.and extending’from" a lev‘élLblose to Qtheecdils
- duit and .blow'uit againstatheiowencpulley,of said
iduit ‘suspendedYromWhe,overhead cooling-coils
Idown pa'stithe space occupiédlby SuGh--iiCer-and%"
surrounding said
I l?i-‘Thecombination or avaiilt having-over
; 15.‘ The, combinationrwithiac-room having. over
head coolingrcoilssice :pickinguand sizing ap
paratus in; saidroom, =saidzapparatus :comprising
.-head~cooling c6ils, a condiiit sextending 1 from
ice picking 'means,'ice sizing means elevated
{the neighborhodd 6f said..c6il& approximately-to
with relation to the picking means and an ele
fthe fioorLthereéf an'd prdviding' a pathéfor, a?“ vating conveyor"iforccarryingi'the>ice fragments
to the sizing means, a casing about said con—
downward current of "thermoesyphonieal-ly -.-cir
'veyor, a‘ conduit'enclosing' said ‘pickingarid ‘siz
mg apparatus, said conduit "extending “down
v.movably extending "throughmsaid opening "into
ward from :the; region of;said.coilsr.and forming
said path" to a distance sufficient to expose a load “"45 a thermo-syphonic means for conducting ade
scen'ding current of cold air‘ from saidcoils over
of ice carriedytherebyi-to'ithe‘current of cold air
.culating air cooled‘ by mamas, said_»-l-conduit
“having an opening in its w'a'lllaand a vehicle‘ re
to dryrand/or freeze theemoi'sture thereonmsaid
:vehicie having a perforatedrbottom forppermit
tsaid‘apparatus, said sizing means including ,bins
teach tarra-nged ‘ to receive ice 'Ifragmentsof a
ting water to drainfrom'wetice carried by the k‘ f‘di?‘erent‘size, slidable gates ,forsaid bins“ a. fan
o:c'onne‘cted to said conduit to'draw cold. airuthere
“from; pipes .leadingfromosaid?fan to said gates,
£11. In rcombina'tion, ira 'waiilt “equipped ‘with
'and portsin said pipes‘ for conducting. air under
overhead fco'oling coils, af-‘conduiti"-having_~an
vipressure against ~the edges of said gates, as‘ and
‘upper: end iri-iproiilniity to-isaid)coilswanduprovim
‘for theypurpose set'forth.
ing a path for gravityfi?owlbfsairicobléd bylsaid
coils, and a wheeled vehicle having a body with 55 " 16. ‘The combination of a room having means
for maintaining a low temperature therein, an
a perforated bottom to permit water to drain
ice picking and grading machine located in the
from ice carried by the vehicle, said conduit hav
room, a belt conveyor for elevating broken ice,
ing an opening through which the body of the
upper and lower pulleys for said conveyor, a fan
vehicle removably projects into said path, the
edges of said opening ?tting about the vehicle 60 in said room, a passage leading from said fan
to a point adjacent the lower pulley and between
body, so that a current of cold air passes about
said ice and through said perforated bottom.
12. In combination with a room having over
head cooling coils, ice picking and sizing ap
paratus in said room, said apparatus comprising
ice picking means, ice sizing means receiving ice
fragments from the picking means and grading
the runs of the conveyor, and a port through
which air from said passage impinges 0n the
pulley, as and for the purpose set forth.
17. In an ice picking and grading machine.
' located in a room having means to maintain a
low temperature therein, a belt conveyor for
elevating broken ice, upper and lower pulleys
for said conveyor, a fan in said room, a conduit
closing said apparatus, said conduit extending
downward from the region of said coils toward 70 leading from said fan to a point adjacent the
said fragments according to size, a conduit en
the floor of the room so as to form a thermo
lower pulley and between the runs of the con
syphonic current of sub-freezing air passing
from said coils about said apparatus, said ap
veyor, and a port in said conduit through which
air from the fan is blown against the lower pulley
paratus including an elevating conveyor for
carrying ice from said picking means upward 7‘
and adjacent parts of they belt.
18. The combination with a room having over~
_ 325932.151
.12 _,
head cooling coils, ice picking and sizing ap
, paratus in said room, a conduit enclosing said
' 515,812
‘Barr _;__'__,-_..--..'._ Mar. 6, 1894
Robinson -____I_..-__ July 24, 1894
and r'orming a thermosyphonic means for con
Holden ___'.._ _____ .. Dec. '11, 1894
Owen ____'_-_, ____ __ Aug. 5, 1902
' ducting a descending current of cold air from '
Rhodes ..___'..______ .._ May 9,1905
said C0115 over said apparatus, said sizing means
Hopkins _____ ....‘...... June 26, 1906
Culver. ____ _.,.__....__ Jan. '28, 1908
945,174 _
Blakely __..'_ ______ _.. Aug. 4, 1908
Larson ______ _;_____‘ Jan. 4, 1910
Busch __________ __ Aug. 11, 1914
‘picking and sizing apparatus, said conduit ex
tending downward from the region of said coils
including bins each arranged to receive ice frag
ments of a di?erent size, slidable gates for said
‘bins, a fan connected to said conduit to draw 10
cold air therefrom, pipes leading fromv said fan
to said gates, and ports in said pipes for conduct
ing air under pressure against the edges of said
gates, as and for the purpose set forth.
1 19. A device for'use in a. vault with overhead"
cooling coils, comprising means normally expos-"
1 ing ice to room temperature in the vault, a con
duit surrounding the space in which ice is nor
mally so exposed, said‘conduit extending upward
toward said coils to conduit cold air from said ”
coils to said ice, the walls of said conduit ?aring"
Miller _____ _.'.'_;_____ Oct. 6, 1914
> Harrison ________ .. July 31, 1917
Thum ..__..__.._____ Mar. 13, 1923
Burch“ __________ .._ Nov. 24. 1925
Seeger ____.'-_..___.. Sept. 18, 1928
'Loizillon __________ __ Oct. 9, 1928
Noecker _.. ..... .._ Sept. 10, 1929
‘Hull __ __________ __ Nov. 4, 1930
'Gies .__..___.' ________ __ Jan. 6, 1931
Philips __________ _.. Feb. 17, 1931
outward adjacent said coils at an angle of ap
proximately 45° so as to embrace a relatively
large area adjacent said cooling coils and to
Scherer"____.______ June 13, 1933
Peters_l____;. _____ __ Sept. 12, 1933
Lauderback .._'______ Nov. 11, 1933
conduct cold air to a relatively small area to be g5
Gemeny _' _______ .._ Jan. 30,1934
20. A device for use in a vault having overhead
Klippel ____.....____-- July 3,1934
Kinslow _____>_-...._ Oct. 18,1934
cooling coils, comprising an ice picking and
Taylor .- _________ __ Dec. 8, 1936
tion surrounding the space in which said ma-Dgu 2,133,521
chine is located, said conduit extending upward
toward said coils to conduct cold air from said
coils to said machine, the walls of said conduit
?aring outward adjacent said coils at an angle
vOrrison_'...._. ______ _._ May 1,24,v 1938
Wusow ; ____ _'______ 0ct."_8;1938
. cooled thereby.
grading machine, a conduit having a lower por
Field -_;'.... ______ __ Nov. 19, ‘1940
Anderson .. _______ __ Jan. 7, 1941
' Lilly ____ _.. _______ __ Apr. 1, 1941
Finnegan ___'____v_.._' Apr. 1, 1941
of approximately 45° so as to embrace a rela-av' 2,246,723
tively large area adjacent said cooling coils and
to conduct cold air to the portion of- smaller
.cross section occupied by said machine.
Delivuk,..__' ______ __ June 24, 1941
Lathrop _‘ ________ __ Jan. 27, 1942
Bateman ________ .._ Sept. 22, 1942
Knowles -'._________ Oct. 27, 1942
The following references are of record in the
?le of this patent:
Stoll ____'_ _______ .._ May 24, 1870
Fuller ___________ __ Apr. 21, 1874
Webster 1 _______ __ Aug. 29, 1882
Henderson ______ __ May 12, 1885.90
Peace __________ __ Oct. 22, 1889
Brennan ________ .. Dec. 16, 1890
Baxter ___________ __ Feb. 2, 1891
Abbe _______ _..v.._.___ Nov. 8, 1892
Gates .__'. ________ .... Dec. 27, 1892, 55
Tveter _.....'. ______ .. Aug. 12, 1941
Baer ____'_;__'__-'_‘__ Oct. 21, 1941
Miller _...__..-_-....'..- NOV. 25, 1941
Randolph ____ ._'____._ Mar. 2, 1943
Wayland _.-. ______ .._ June 29, 1943
Taylor __________ __ Aug. 17, 1943
Lager _________ _-__ July 18, 1944
Germany ________ __ May 25, 1935
Gifford Wood Bulletin 113, copyright 1938,
“Creasy ice breakers," pages 1, 2, 4, 7, 8, and 9.
(12 pages with covers.) Copy in Div. 44 in Class
62, Ice Making Publications.
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