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Sept. 24, 1946.
H. E. cosslN
2,408,295
RANGE APPARATUS
Filed Aug. 10, 1942
4 Sheets-Sheet l
Sept. 24,
H. E. cossm
2,408,295
RANGE APPARATUS
Filed Aug. 10, 1942
{sheets-sheet 2
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INVENTOR.
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Sept 24, 1946. ‘I
H, E_ lgosslN
2,408,295
RANGE APPARATUS
INVENTOR.
Hanna l‘. 6'0.55111
BY
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Sept. 24, 1946.
H. E. cossm
2,4?8,295
RANGE APPARATUS
Filed Aug. 10, 1942
4 Sheets-Sheet 4
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#0139545 .5. 60::1/1
BY_'WZ,M
? TTOPIYE Y
Patented Sept. 24, 1946
UNITEDYSTATES PATENT OFFICE
2,408,295
RANGE APPARATUS
Hursle E. Cossin, Detroit, Mich., assignor to Nash
Kelvinator Corporation, Detroit, Mich., a cor
poration of Maryland
1
Application August 10, 1942, Serial No. 454,261
1 Claim. (Cl. 219-35)
The present invention relates to ranges.
An object of the present invention is to provide
a range oven with an air tight seal about the
door opening.
Another object of the present invention is to
2
heating elements 24. Each of the heating ele
ments is controlled by a respective manually op
erated switch 25 interposed in the electrical cir
cuit to the heating element. The switches 25
are mounted on the panel 21 of the range.
locate in an oven an air inlet and an air outlet 5
The range 20 is constructed with side walls 30,
passage whereby the incoming air is heated and
front wall 32 and rear wall 34. The side walls
uniformly distributed to all portions of the oven
30 and front wall 32 are stamped and formed
chamber while the steam or vapors arising in
from a single sheet of metal, with the rear wall
the use of the oven is uniformlyexhausted through 10 secured between and to the side walls. The top
the outlet passage to the atmosphere causing litand side walls extend beyond the rear wall to
tle or no variation in the temperature in any pore
provide a recess for terminal blocks, outlets and
tion of the oven with any other portion.
the like to be a?ixed upon the rear wall. The
Another object of the present invention is to
range is supported on a base member 35 which
centrally locate the air inlet and air outlet in 15 is secured by weld to the side walls 30. The top
direct opposition to each other in the bottom and
marginal edge of the front and side walls are
top walls respectively.
bent at right angles to provide a rest for the
Another object of the present invention is a
table top 22 which is secured thereto by clips 37
means for directing all air drawn from the at_
to the front wall and by bolt and nut (not shown)
mosphere over heating coils before circulating 20 to the side walls. The table top is provided with
in the oven chamber proper.
an upwardly extending back portion 39.
Another object is to provide in a range a drawer
slidably mounted within the range 20 are a
and an improved sliding arrangement therefor.
plurality of drawers 40 which slide outwardly
The invention itself, however, both as to its
through openings 42 formed in the front wall 32.
organization and its method of operation. to- 25 Each of the drawers is mounted on respective u
gether with additional objects and advantages
shaped tracks 44 extending parallel along oppo
thereof, will best be understood vfrom the fol
site sides of each drawer. The tracks are se
lowing description of speci?c embodiments when
cured to front wall 32 and extend through a slot
read in conjunction with the accompanying
in the rear wall. A roller 46 is bearinged at the
drawings, in which:
30 forward end of each of the tracks upon which
Fig. 1 is a front elevational view of a range
is adapted to ride a respective rail 41 secured
with parts broken away and embodying the pres
longitudinally along a side wall of the drawer to
ent invention;
support the forward end of the drawer. The rear
Fig, 2 is a cross sectional view taken along
portion of the drawer is slidably supported by
line 2-2 of Fig. 1;
35 rollers 49 secured to each of the side walls of
Fig. 3 is a fragmentary cross sectional view
the drawer and adapted to ride in a respective
taken along line 3—3 of Fig. 2;
track 44. Drawer stops are provided by tongues
Fig. 4 is a cross sectional view taken along
50 extending into the track 44 to engage roller
line 4—4 of Fig. 1;
49 to check the outward movement or opening of
Fig. 5 is a cross sectional view taken along 40 the drawer. A depression 5| is formed in the
line 5—5 of Fig. 1;
track for the roller 44 to drop into and hold
Fig. 6 is a view with parts broken away and
the drawer in open position. A similar depres
parts shown in section taken along line 6--6 of
sion 52 serves to hold the drawer in closed po
Fig. 5;
sition. A suitable handle 53 is secured to the
Fig. 7 is a cross sectional view taken along 45 front, pane154 of each drawen
1ine1—'l of Fig- 6;
Positioned within the range 20 is an oven 60
Fig. 8 is a fragmentary perspective View Of
formed by a liner 62 comprising said walls
the oven door gasket used in the present inven64, bottom wall 65, top wall 66, rear wall 61 and
tion;
a, forward sleeve extension 69. The top, sides and
Fig- 9 is a Cross Sectional View taken along 60 bottom wall are formed as a sleeve with the rear
line 9—9 of Fig. 8; and
Fig- 10 is a fragmentary view of a modi?ed
form of door construction.
Shown in the drawings is a range 20 having
a table top 22 in which is inset electrical surface 55
wall secured thereto by weld. The sleeve exten
sion 69 is secured by weld to the opposite end.
The extension 69 is marginally ?anged outward
1y, as at 10, to engage the front wall 32 imme
diately about the opening 12 formed therein.
aioaeeé
3
4
inserted the bottom edge of the inner door pan‘.
Shelf supports are provided in the oven 63
by channelling the side walls E4 forming a plu
The pans are then secured together adjacent
the top by a Z-shaped bracket I26 which is se
cured to the outer pan by screws passing there
through in securing the door handle I30 to the
bracket. Screws I3I secure the inner pan to
rality of parallel longitudinally extending ledges
‘I4.
The walls of the oven liner 62 are in spaced
relation to the side walls 39, rear wall 34 and
the table top 22 for the insertion of suitable
the bracket.
_
Recesses are formed in the door into which
high temperature heat resisting. insulation ‘I5,
project the lugs IIB. Pivot pins II4 bearinged
Similar insula
tion is packed in the space along the bottom and 10 in the lugs II6 are secured to the inner pan by
screws I34 which project through slots I35
opposite side wall of the oven formed by a ver
tical partitioned wall 16 and a horizontally ex» _ formed in the inner pan to permit sliding adjust
mentpof pin. Slots I3'I are cut in the bottom
tending partitioned Wall TI. The partitioned walls
edge oflthe outer pan to permit access to the
‘I6 and TI extend fromfront to rear wallqof
the range. An L-shaped member 19 is secured 15 screws I34.‘
A gasket 0r seal I39 similar in construction
to the partitioned wall ‘ll upon which is adapted’
''-to described gasket I00 extends along the inner
to partially rest the oven liner 62.
'
1
face of the door immediately adjacent its bot
The liner B2 is assembled into the rangeby
tom
edge. The gasket is secured by inserting the
insertion through the front wall opening ‘l2. It
is secured by bolts 95 having hooked ends 92 en 20 tail or looking bead section It)! between the
flange I26 and the inner pan I26. The gasket
_ gaging over an edge of the rear Wall 5'! of the
is adapted to seal against the ?ange ‘l9 imme—
liner. The edge extends over the hollowed por
diately adjacent the bottom of the opening I?i.
tion formed in the making of the shelf supports
The gasket I39 sealing against the oven flange
to permit engagement of the hooks over the
overlapping edge. The opposite end of the bolts 25 along the bottom of the door opening and the
gasket I86 sealing against the face of the door
extend through the rear wall 34 for threading
along the other three sides, forms an air-tight
of a nut 93 to draw or pull the liner inwardly
seal around the door preventing air entering into
until the ?ange ‘HI binds against the front wall
the oven chamber or heated air in the oven es
32. Preceding the binding of ?ange 79 against
_
the front wall the section IIlI of gasket W9 is 30 caping about the periphery of the door.
During the use of the oven, as for baking, a
inserted to be clampingly held therebetween. The
certain amount of air must be drawn into the
gasket is adapted to seal against the face of
oven to replace that drawn off in the venting of
door II2 to prevent air entering into the oven
cooking steam or vapors. To control and direct
chamber. The gasket is preferably formed in
one length to extend peripherally to the door 35 the inlet of air of room temperature into the oven
in manner so as to prevent cold areas in the oven
opening I82 immediately adjacent the top, and
chamber there is provided a passage I46 which
immediately adjacent the sides. The ends of
communicates from the drawer compartment
the gasket are inserted into openings I63 in the
centrally into the oven chamber. The passage is
front Wall to prevent fraying or unravelling of
40 provided with a lining I42, and positioned so that
the end edges.
it is geometrically centered in the bottom Wall 65
The gasket comprises cords M4 and i535 bound
of the oven. Air is drawn into the drawer com
together in parallel relation by tape I86 whose
partment through opening I44 in the rear wall
ends are stitched together intermediate thecords
34, and through opening I45 formed by insetting
I04 and I85 by thread {01. The cords I64 and
the
front portion of the base member 35 from
WE are preferably formed of asbestoa'or “Fiber- 1
the‘front Wall 32. The bottom of the drawer 43
glas,” though other suitable high temperature
is perforated to permit free circulation of air up
insulation material may be used. The tape is
.
wardly
‘from the floor to the passage I40.
preferably woven from “Fiberglas,” though it
Positioned over the passage I40 and resting on
likewise may be formed of other suitable high
temperature heat resisting material, or of 'ma- 5 the bottom wall of the oven is an electrical heat
ingfcoil or element I50. A ba?le I52 is set di
terial to produce equal results which has been u rectly
over the heating coil sloped to direct the
treated, or been suitably coated, to withstand
air upwardly towards the side walls of the oven
high temperatures. The gasket after fabrica
chamber. The ba?le also permitsthe heated air
tion may if desired be suitably coated with high
temperature heat resisting paint, ename1 or the 55 to pass forwardly to and upwardly along the face
of the door and rearwardly to and upwardly along
like.
.
the rear wall of the oven chamber. The heating
The cord I05 of the gasket is smaller in ‘diam
such as “Fiberglas” or the like.
' coil and'ba?le‘are centered over the inlet passage
eter to the cord IM to serve as the locking bead
Illle when it is inserted between the ?ange l8
and front wall 32. The bead section I84 is adapt
ed to extend peripherally adjacent the edge of
hi6 so that a distribution of heated air is directed
A
v the ?ange ‘Iii to seal against the’door H2.
Oven door I I2 closing the opening IE2 is swing
ably mounted on pins H4 bearinged in lugs IIIB
which project beyond the face of the front wall
32. The lugs H6. extend through openings in
the front wall being attached to brackets ll‘!
affixed to rear side of the front wall.
The door II2 comprises an inner pan I25 and .
an outer pan I22 between which is packed suit- "
able heat insulation material 124. The inner
Dan is set within the outer pan. The pans are
secured together by hanging upwardly the bot
tom edge of “the outer pan (see Fig. 7'), ‘as at.”
I26, ‘forming a pocket or channel into which 'is“
to all vportions of the chamber, inthat the air
must ?rst pass over some portion of ‘the heating
coils I5!) before passing around the baffle to enter
the oven chamber proper.
'
,
Directly over the inlet passage I40 in the top
Wall of the oven chamber isa vent outlet I54
communicating with a laterally directed passage
The passage I56 com
municates with a vertical passage ?ue or chimney
I50 which is opened at both ends to the atmos
phere. The top outlet is through the grill open
> ing IEO in the back 39 of 'the‘t'able top 22‘. The
passage I56 enters at an. intermediate point be
tween the inlet and outlet of‘the passageway I50
“so that‘ as ‘the air rises in the passageway or chim
n'ey ‘I59; ‘it tends "to ‘draw ' steam or vapors ‘from
5
2,408,295
6
the oven chamber through the passage I56. En
I82 are secured together by U-shaped channel
tering the passage I50, from the passage I56, the
members I36 and screws I88. The channel mem
ber I 38 includes leg I90 which is secured to the
side wall of panel I80, preferably in the same
steam or vapor mixes with the colder column of
rising air to reduce its temperature before dis
charging through the grill opening I60 to the at
manner as panel I20 is secured to panel I22 as
mosphere.
disclosed in Fig. 7. Screws I88 extend through
A second heating element IE2 is suspended
channel member I86 and ?ange 202 of panel I82.
from hooks I65 from the top wall 56 of the oven
Screws I88 also extend through gasket I00 and
liner. The element I82 is used for broiling and
lock the gasket between ?ange 202 and member
pre-heating of the oven. The lower element I50 10 I86. The channel member I86 and gasket ex
is used for heating of the oven during the bak
tend entirely about the periphery of the door
ing process. Both elements are connected to a
forming a seal for the oven and thus dispensing
manually set thermostatic switch I 01 mounted on
with a gasket on the cabinet proper.
the panel 2'1.
While I have described the preferred form of
A suitable light bulb H0 is mounted in a glass 15 my invention, I do not wish to limit myself to
front casing secured in an opening in the rear
the precise detail as shown but wish to avail my
wall Bl of the oven chamber for illuminating the
self of such variations and modi?cations as may
chamber. A suitable switch (not shown) oper
come within the scope of the appended claim.
able by the opening and closing of the oven door
I claim:
is interposed in the electrical circuit to the light 20 In a range having an inner and an outer cas
bulb to provide illumination when the door is in
ing with heat insulation therebetween, said inner
open position.
casing having side, top and bottom walls for
In the present arrangement the oven chamber
forming an oven chamber, said inner casing
is uniformly heated throughout. Cold areas are
forming an access opening to said chamber, a
eliminated as all air drawn into the oven must 25 movable door for closing said opening, sealing
flow across the heating coils before passing
, means for sealing said door to said casings about
around the baffle and entering the baking or oven
said access opening, said oven bottom wall hav
chamber proper. The air inlet being centrally
ing an air intake passage disposed centrally
positioned beneath the heating coils and ba?le
an electrical heating element positioned
that the distribution of air is uniform to all parts 30 thereof,
over said passage and supported adjacent the
of the oven chamber. By centrally locating the
bottom wall of said oven, a ba?le positioned di
vent opening in opposed relation to the inlet
rectly over said heating element and sloping up
Opening there is a uniform withdrawal of steam
wardly toward the side walls of the oven cham
and vapors from the chamber. The possibilities
ber, said heating element and ba?le being cen
of steam becoming entrapped in any portion of
tered over said inlet passage so that a distribution
the chamber is reduced to a minimum and re
ducing the possibilities of any portion of the
chamber becoming overheated. By evenly with
drawing the vapors from the oven chamber a
uniform humidity is obtained throughout,
In Fig. 10 there is shown a modi?ed form of
door construction wherein I80 is the outer front
panel and I82 the rear panel. Panels I80 and
40
of heated air is directed toward and upwardly
along the face of said door and side walls, said
oven top wall being provided with a vent outlet
disposed in the central area thereof and a hori
zontally disposed heating element suspended
from said oven top wall and coextensive with the
major portion of the central area of the top wall.
HURSLE E. COSSIN.
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