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Патент USA US2107285

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I
Feb. 8, 1938.
_ A. R. CONSTANTINE
ICE TRAY SUPPORTING AND RELEASING MEANS
Filed Feb. “ 25, 1934
2,107,285
Patented reuaiasa
‘-
‘
‘ 7 2,107,285
_ UNITED
I
STATES
‘2,107,285
PATENT
r
OFFICE=
\
Arthur lt. Constantine, River Forest, 111., assignor,
by mesne assignments, to Reconstruction Fi
nance Corporation, Chicago, 11L, a corporation I
Application February 23, 1934, Serial No. 112,563
15 Claims. (Chin-108.5)
My invention relates in general to refriger-
_ My invention further includes numerous other
ators and more particularly mechanical refrigerating'apparatus wherein a receptacle, such as
objects, advantages and inherent functions, not
speci?cally mentioned herein, which will become
an ice cube tray, containing water or other mate5 rial to be chilled is carried on a support in posi-
tion to be refrigerated; and an important object
of the invention is to provide means for releasing
the receptacle from its support in order" to facilitate its removal.
10
Another important object isitoi; provide simple
apparent as the invention is more fully under
stood from the following description which, taken 5
with the accompanying drawing, discloses a pre
ferred embodiment of the invention.
Referring to the drawing:
Figure l is a perspective view of a refrigerating
element carrying tray supports including tray re- m
release means mounted on the receptacle support
and manually operable to separate the tray or
lease means embodying my present invention;
Figures 2 and 3 are perspective views of parts
receptacle from its support by» breaking the ice of the refrigerating element shown in Figure l;
v
bond which tends to‘ form between the receptacle
Figures 4, 5, and 6 are sectional views'taken
15 and its support through the freezing of condensed substantially and respectively ‘along lines H, 15
or other moisture therebetween.
_
'5-5, and 6-6 in Figures 8, 4 and 1 respectively;
Another important object is to provide arelease
means operable to raise one end of the tray from
its support in order to break an ice bond between
20 tray and support; a further. object being to form
the release means as a wedge adapted to enter
'
Figure '1 shows the refrigerating element as
mounted in a refrigerator cabinet; and
‘ Figure 8 is a perspective view of a support shelf
and attached tray release.
. r
m‘
To illustrate my inventiomlhave shown on the
between the tray and its support for the purpose
of separating the frozen parts‘.
Another object is to provide a manually oper-
drawing a refrigerator element II, in which a shelf
I! is mounted in position to receive a container
or pan i5 adapted to contain material toberefrig
2, able tray release having an operating handle dis- _ erated. The refrigerator element It may be of any 25
posed in position, at one side of the tray support,
to facilitate manipulation of the release without
suitable form, construction, or arrangement pro
viding for the mounting of the shelf but I have
obstructing the removal of the tray from the sup- ‘ shown it in the form of an evaporator or boiler
3
portwhich is connected in a refrigerant circulating
Another object is to provide a tray release piv- system including a refrigerant compressor i1, 30
oted on the tray support and having an operating drivingly associated with motive means l9, the
handle extending to the side of the support and a discharge outlet of the compressor being con
wedging portion opposite an end of the tray in nected through a refrigerant condenser 2|, and a.
position to enter between the tray and its sup— ?oat-controlled expansion valve 23 to the inlet
port to separate the same when the handle is of the evaporator ii. In this type of refrigerating a‘
manipulated; a further object being to form the system, the refrigerating medium in gaseous con-,
release as a relatively flat member over which the
dition is drawn into the compressor through con
tray may pass without obstruction. '
duit means 25 connecting with the evaporator
,7
Another object is to provide a tray support and
discharge and is compressed and delivered in gase
release which may be formed as a unit for as- rous condition under pressure to the condenser in u
sembly in a refrigerator casing; a further object
being to form the tray support as a single sheet
which the refrigerant is cooled and changed to
liquid form. From the condenser, the lique?ed
metal element.
refrigerant is delivered through the ?oat-con
'
~
Another important object is to provide a re- 'movable tray support adapted for mounting with-.
_. in a. housing such as the evaporatorielement of a
refrigerator, the support being formed ‘with holding means adapted to inter?t with portions of
trolled valve 23 to the evaporator II in which the
refrigerant evaporates or boils and changes to “
the gaseous state while absorbing heat from ‘the
walls of the evaporator and the surrounding at
'mosphere and thus accomplishing the refrigerat
the evaporator element to hold the support in . ' ing function in the vicinity of the evaporator.
tray-carrying position within the element; afurThe evaporator shown comprises a pair of 50 -»
ther object being'to form. the holding means as
formed plates of channel Shaped con?guration
an integral part of the tray support and more
having spaced side walls and an interconnecting
particularly-to
metal member in
form
which
the the
trayholding
as a unitary
means sheet
come
55 prise struck out lugs.
bottom
within the
wall,other.
said plates
The being
outer adapted
plate 21 tov?t
has out-‘Ky,
one
wardly formed impressions including semi-cy-a ;
H1
I
, 2
2,107,285
lindrical depressions 29 near the upper edges
of its side walls and a plurality of grooves 3|
extending in the side and bottom walls and
plate 35 has inwardly pressed semi-cylindrical
depressions 35*near' the ~upper‘edges- of ‘its side
walls in position to register with
‘ ‘
parts are assembled in inter-?tting
> relationship in order to form gas receiving cham~
10 bers from which the evaporated refrigerant is
drawn off through the pipe 25. The side walls
of the plate 33 are also formed with inwardly
extending ridges 31, the ridges on opposite side
walls of the plate being in horizontal registra
15 tion.
The plates are secured together in inter
?tting relationship by sealing their adjacent
edges in any suitable fashion, as by welding, in
order to form, between the plates, a gas-tight
evaporating chamber comprising the spaces de
20 ?ned by the depressions 29 and 35 and the ridges
3i and 31. The evaporator inlet connection is
formed preferably on one of the ridges 31 and
the ?nished structure may be strengthened by
securing a connector 59 between the pressed
25 portions 35 of the inner plate. The plates are
preferably additionally secured together as by
means of welding applied intermediate the ridges
removal dimcult‘and- to this end I have pro
vided a breaker mechanism which is preferably
mounted on the shelf a’d conveniently located
to facilitate manual operation to break the frozen
bond and loosen the container from the shelf :
in order to permit the same to be easily removed
from the freezing unit H. For this purpose. I
have provided a breaker element comprising a
member 53 pivoted on the forward portions of
the shelves II or on the bottom wall 01' the unit 11
H,v which also may act as a shelf. The mem
bers 53 may each be secured in position by means
of a pin 55 and each has an operating handle 51
extending adjacent‘ a side edge of the shelf'on
which it is attached.
15
The refrigerator unit H is preferably arranged
in the cooling compartment I 2 of a suitable re
frigerator cabinet it having an opening provided
with a suitable closure or door H, one end of
compartment, and said unit ll being arranged
in the compartment so that its forward end
faces the compartment opening whereby when
said door is opened,
through the compartment
3| and 31.
30
C13 Ul
irigerator in heat exchange relationship with
with a door or other clo
sure means at its forward end-whereby to per
mit access to the breaker means and the-com‘
tainers through an end of the unit, when said‘
the evaporator unit ii. The shelf, however, is
closure means is open.
preferably formed for inter?tting engagement
The member 53 is of relatively shallow con
struction‘ in order to present little, if any ob
struction, to the removal of the container I5
from the shelf, the container being slidable over
with the registering ridges 31 which extend in
wardly of the side walls
40
35
the member 53 without requiring appreciable
elevation from its normal resting position on the
shelf. When the member is in normal position,
an or
50
The
shelf is adapted to form a carrier on which the
container l5, or any other article or device, may
be mounted in position to be refrigerated. The
60
particularly contemplating a relatively shallow,
adapted to receive water to be a
frozen to form ice cubes. The plate ll near its
rearmost edge is or may be provided with means,
comprising an upwardly struck lip ",in posi
tion to engage the pan in order to limit itsrear~
substantial space between it and the
adjacent edge ofthe shelfso that there is no
danger of the arm becoming frozen to the shelf. 45
The member 53 has a wedge-like portion com
prising a blade 59, which is adapted to enter
between the bottom of the container l5 and the
shelf, as shown in Figure 6,
is moved from its normally inactive position,
shown in full lines in Figure 3, to the ice break 1 C
ing position. illustrated in dotted lines.
The
wedging action exerted between the shelf ‘and
the container’ l5 by, the entrance of the blade
moisture between the container
ing shelf, thus.freeing the container and per- 60
mitting it to be readily withdrawn from its sup
porting shelf.
_
The shelf also may be curled as at 63 in order
ward travel on the shelf and the plate ‘I may
to improve the appearance of
be formed with laterally extending'beads l5 and
and any suitable yielding means maybe pro- 65
, longitudinal depressions 5|
'
'
vided, if desired, to normally'bias
the breaker;
_
member 55 toward the inactive position whereby
Ingthe, operation of refrigerators, moisture is ‘to automatically return thehandle to‘the posi
likely to condense upon the shelf I3 and to form -.tion shown in full lines in Figure 8 after being
a frozen seal between the bottom of the container manipulated to perform the ice breaking func- 70
tion. Such provision of yielding means is not,
it under the refrigerat
ing action of the unit II when the same is in . of course, essential since the breaker may be
operation. The container l5 may thus become manually returned to the‘inoperative position.
75 so tightly frozen upon the
I do, however, prefer to form the handle-‘with a
shelf as to render its shoulder
or projection 8! in position to engage 75
increase the strength‘
of the shelf and for drainage purposes.
2,107,290
av co-operating portion or element 62 formed on
or carried by the shelf for limiting the move
ment of 'the breaker member in one direction on
its pivot and determining its inoperative position.
'
3
2. The combination‘ with a cooling device hav
ing supporting} means adapted to carry support
able means in heat-exchange relationship with
said cooling device, of means comprising a knife
blade pivoted on said supporting means, and
The element 62 may take the form of a lug inte
manually operable means to turn said knife blade
grally formed on a washer 65 mounted between
about its pivot in a direction to enter between
the forward edge of the shelf 4! and the ice ‘
the supporting and supportable means in order
breaker, and having a perforation receiving the
pin 55. The washer also may have a flange 61
curled about the forward edge of the shelf to
hold the washer from turning on the pin. The
blade 59 also may be and preferably is provided
with a shoulder or projection 69 in position to
engage a stop on the shelf, such as the stop 62,
in order to limit the ice breaking-movement of
to break an ice bond therebetween.
3. The combination with a cooling device hav
10
ing supporting means adapted to carry support
able means in heat-exchange relationship with
said cooling device, of a handle pivoted on said
supporting means, and meansassociated with
said handle and adapted, when said handle is
the breaker element and stop it in the position ' shifted, to enter between the supporting and
“supportable means to break an ice bond there
shown in dotted lines in Figure 8.
_
'
The breaker mechanism, which I have provid
ed, is extremely simple in construction, cheap to
between.
I
I
‘
4. The combination with a cooling device hav
ing support means adapted to carry supportable 20
means in heat exchange relationship with said
cooling device, of a release lever pivotally mount
ed on said support means for movement about
a vertical axis, ‘said lever being ‘adapted "to ex
20 manufacture, and positive in action. It may be
mounted as well upon the bottom wall of the
unit H, see Figure l, as on the shelves 41. Its
construction‘ is such that the mounting or re
moval of the container IS on or from the‘ shelf
25
is substantially unhampered. The portion of the ' tend normally in position permitting free access
to said supportable means, said lever also hav
breaker, over which the tray is moved, is rela
tively ?at, while the handle 51, when the breaker ing a portion adapted, when the lever is moved
is inactive, is disposed at one side of the shelf from its normal position, to enter between. said
in a position permitting unhampered movement support and supportable means in order to break 30
an ice bond therebetween.
30 of the container.
5. The combination with a cooling device hav-v
The shelf also is of simple construction and
can be easily and cheaply manufactured by a‘ ing a shelf for supporting a container in said
simple sheet metal stamping operation. In addi
tion the shelf construction, in conjunction with
35 the construction of the unit I l. whereby the shelf
may be easily mountedon the unit without re
quiring additional fastening means has great'
utility, more especially because the shelf may be
arranged selectively at any desired elevation in
40 the unit H or. may be entirely removed by simply
withdrawing it from mounted position, thus per
mitting considerable latitude in the arrangement
of the cooling space within the unit H. One or
more shelves may be mounted and thus permit
the reception of containers'of a variety of sizes
in a refrigerator unit of standardized form, and
a further advantage resides in the ability to
quickly remove any or all shelves from the unit
in order to leave the interior of the unit entirely
unobstructed and thus facilitate cleaning oper
ations as Well as permit the unit to receive a
device, said device and shelf being formed to
permit removal and replacement of said con
tainer across an edge of said shelf, of a lever piv
otally mounted on said shelf at or adjacent said
edge, said lever being mounted for pivotal move
ment'about a vertical axis and having a handle
to facilitate manual operation thereof, said lever
being, adapted to‘ extend in position with its 40
handle in substantial alinement with said edge
whereby to avoid obstructing removal or replace
ment of said container, said lever having a por
tion adapted, when the lever is moved from said ‘
normal position, to enter between said shelf and 45
said container to break an ice bond therebetween.
6. The combination with a cooling device hav
ing a shelf adapted to carry a container in heat
exchange relationship with said cooling device,
a handle pivoted on said shelf, and means asso
50
ciated with said handle and adapted, when said
handle is shifted, to enter between the shelf and
container of maximum size which is not possible
‘where the shelves are permanently mounted or the container to break an ice bond therebetween,
mounted in a fashion rendering removal di?icult. said means being adapted normally to lie out
55
wardly of and opposite the ice bond.
Numerous other objects, advantages and in
'7.
A
shelf
structure
for
supporting
a
container
herent functions of the invention will be appar
ent, from the foregoing description, to those in heat exchange relationship with a cooling de
familiar with the art of refrigeration and it vice, a handle pivoted on said shelf adjacent an
will be obvious that numerous changes may be edge thereof, and means associated with said 60
handle and adapted, when said handleis shifted,
60 made in the form, construction, and arrange
ment of the several parts without departing from to enter between the shelf and the container in
the spirit or scope of my invention or sacri?cing order to break an ice bond therebetween, said
means being adapted normally to lie outwardly
any of its attendant advantages; the forms here
in described being preferred embodiments for ' of and opposite the ice bond.
8. The combination with a cooling device, hav 65
the purpose of illustrating my invention.
What I claim as new and desire to secure by
Letters Patent is as follows:
1. The combination with a cooling device hav
ing supporting means adapted to carry support
able means in heat-exchange relationship with
said cooling device, of means comprising a wedge
ing- supporting meansadapted to carry support
able means in heat exchange relationship with
said cooling device, of breaker means carried by
said supporting means and operable to break
an ice bond between the supporting and support
able means, said breaker means comprising a
70
carried by said supporting means and shiftable' relatively shallow element mounted in position
thereon between said supporting and supportable to enter between the supporting and supportable
means in order to break van ice bond therebe-_ means and permitting substantially unhampered»
75.
75 tween.
4
2,107,286
'relative sliding movement between the support
ing and supportable means.
9. The combination with a cooling device, hav
ing supporting means adapted to carry support
ported on said shelf, and means between the
shelf and tray to break the adhering ice-Jsealpr.
bond existing therebetween, said means comprisi.
ing a horizontal lifting cam having an inclined
cam surface, said cam being mounted for, rota-v
on said supporting means and having an arm tion about a vertical axis, the high portion of
formedas a handle extending at one side of. the ‘said inclined cam surface being normally out of
supporting means and another arm extending , engagement with the shelf and tray, and means
into position to enter between the supporting and for rotating said cam about its vertical axis _to
the supportable means when said handle is moved force the high portion of the inclined ‘cam sur
face between the shelf and tray to force the tray
in order to break an ice bond between the sup
able means in heat-exchange relationship with
said cooling device, of a bell crank lever pivoted
porting and supportable means.
_
out of contact with said shelf.
_
'
14. Inthe combination with a freezing unit
ment having a freezing tray therein adapted to having a supporting element and a freezing tray
_ be periodicallyremoved, of swingable wedging element adapted to be periodically removed, 0s
means operable about a vertical pivot axis with cillatable wedging means pivoted on one of said
a wedging action betweenthe compartment bot- . ele ents for oscillation about a vertical axis, said
tom and the bottom of the tray to release the means comprising a handle portion, and a portion
10. The combination with a freezing compart~
latter from frozen connection therein.
11. The combination with a freezing compart
ment and a tray arranged therein, of a lever
pivotally mounted on a vertical pivot and operat
ing a cam with a slow powerful wedging action
exerting a wedging action between the, support
ing element and the tray element thereby to re
lease the latter from frozen connection with the
former.
.
l
15. A refrigerating apparatus comprising an
evaporator shelf element, an ice cube tray ele
under the tray to release the same from its frozen
ment removably supported on said shelf element,
contact, with the compartment.
12. A ‘refrigerating apparatus including an and means between the shelf element and tray
element to break the adhering ice bond existing
' evaporator shelf, an ice cube tray removably sup
ported on said shelf, and means between the shelf thereb'etween, said means comprising a stud
‘and tray to break the adhering ice seal or bond member secured to and extending vertically from
existing therebetween, said means comprising a one‘ of said elements, a cam memberI adapted for
rotation around said stud and having a surface
stud member, a cam member adapted for rota
tion around said stud and having a surface nor- - normally ?ush with the contacting surfaces of
the shelf and tray and a handle extending out
2-9 LI mally flush with the contacting surfaces of the - wardly from said cam member and lyingin the
shelf and tray, and a handle for rotating the
plane of the cam member for rotating the same
cam about the stud to force the tray out of con
about the stud to force the tray element out
tact with said shelf.
'
~ 13. A refrigerating apparatus including an of contact with the shelf element.
evaporator shelf, an ice cube tray removably sup
ARTHUR R. I CONSTANTINE.
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