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Патент USA US2119008

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May 31, 193s.
A. A. DUNCAN
2,119,008
HEATER
Filed Oct. lO, 1935
Mí
ATTO RN EY
2,119,008
Patented May 31, 1938
UNITED STATES PATENT OFFICE
2,119,008
HEATER
Archibald A. Duncan, Akron, Ohio
Application October 10, 1935, Serial No. 44,346
4 Claims. (Cl. 126-246)
This invention relates to heaters, and more
especially it relates to apparatus for concur
rently heating plurality of flat, metal plates or
discs.
The invention is of primary utility for heating
Ul
the flat separator plates of fat or oil extracting
presses used in the practice of the invention con
stituting the subject matter of my copending ap
plication for Letters Patent, Serial No. 44,083
filed December 9, 1935. It can be used, however,
in other situations Where it is desired to heat a
plurality of metal discs to a moderate tempera
ture not exceeding 500° F.
The chief objects cf the invention are con
currently to heat a plurality of metal plates or
discs to uniform temperature; to provide simple
and inexpensive apparatus for heating the discs;
to provide conveniently for the placing of the
discs in the heater, and for removing them there
20 from; and to provide for the removal from the
heater of any drippings from the discs. Other
objects will be manifest.
Of the accompanying drawing,
Figure l. is a vertical section through a heater
25 embodying the invention, said section being taken
'on the line I--I of Figure 2;
Figure 2 is a section on the line 2--2 of Fig
ure l; and
Figure 3 is a vertical section through a heater
30 constituting another embodiment of the inven
tion.
.
Referring to the drawing, I0 is a sheet metal
housing having a door II at the front thereof,
which door is hinged at its upper margin so as to
35 open back upon the top of the housing. The
top, sides, and door of the housing are covered
with insulating material, such as asbestos, to
prevent radiation of heat therefrom. The bot
tom of the housing consists of a plurality of par
40 allel bars I2, I2 that are laterally spaced apart
and extend. transversely of the housing, said bars
being welded in place. The housing is seated
upon a pair of brackets I3, I3 that elevate it from
the licor, and a suitable heating device, such as
45 the gasoline furnace I4, is positioned beneath the
housing.
A protective apron I5 secured to the
brackets i3 enclose the furnace I4 on four sides
to protect it from drafts, said apron being spaced
about three inches from the floor to admit air
50 to the furnace, and being hinged at the front of
the structure, as shown at I6, to give access to
the furnace III.
Mounted interiorly of the housing is a partition
structure defining a plurality of vertically dis
55 posed slots adapted to receive respective plates
or discs to be heated, said slots being substantially
wider than the discs. The partition structure
comprises a plurality of units I1, Il, of which
each unit consists of four metal strips welded to
gether in the same plane substantially in the
form of a hollow square, asV most clearly shown in>
Figure l, the vertical strip at the front of the unit
being inset from the ends of the upper and lower
horizontal strips of the unit. The several units
are assembled in spaced relation to each other by
means of three tie rods I8, I8, there being spacer
sleeves I9, I9 on said rods between each unit of
the structure. There is no tie rod at the lower
front corner of the partition structure so that
insertion and removal of the metal discs or plates 15
therefrom is not impeded. The discs are shown
at 20, 20 in the drawing.
When the discs are mounted in the housing, the
door closed, and the furnace I4 put in operation.,
the discs are heated to the desired temperature 20
in relatively short time. The slotted bottom of
the housing permits heat to enter and permits
any drippings from the discs to drain there
through. The open construction of the separator
units I1 permits heat to circulate freely through 25
them and about the discs so that substantially
uniform heating is obtained throughout the heus
ing, and the inset arrangement of the front of
the separator units facilitates the mounting and
30
removal of the discs.
The embodiment of the invention shown in
Figure 3 of the drawing is especially adapted
for the heating of separator plates or discs
that are used in presses that extract edible oils
or fats from oil or fat bearing material. It 35
comprises a housing 25 and door 26 that are
similar to those previously described, and is
mounted upon similar supporting brackets
21', 21. In the bottom of the housing is a per
forated floor 28, and beneath the latter is a 40
slidably mounted drip pan 29 that is withdraw
able at the front of the housing. Mounted in
teriorly of the housing and resting upon the floor
28 is a partition structure comprising a plurality
of partition units 30, 30 that are assembled in 45
spaced relation by means of tie rods and spacer
sleeves in the manner previously described. The
partition units 30 are similar to the partition
units I1 of the previously described embodiment
except that both front and rear vertical strips
are inset from the ends of the horizontal strips
thereof. The construction is such that space is
provided along the rear wall of the housing for
the mounting of a plurality of electrical heating
elements 3l, which elements also are mounted 55
2
2,119,008
upon the lateral Walls of the housing as shown.
One plate or disc to be heated is shown at 20.
In this embodiment of the invention the disc
is heated by means of the electrical elements 3l,
and there are no fumes, such as are present in
heaters employing oil or gasoline
naces, to contaminate the disc.
is especially advantageousI When
are being used in the production
operated fur
This feature
the discs ZE!
of edible fats
10 or oils, since there are no fumes from the heater
15
20
25
30
to be transferred to the products and by-prod
ucts. This embodiment of the invention also
provides for the recovery of any material adher
ing to the discs 2U, which material melts and
drips therefrom when heated.
Modiñcation may be resorted to Without de
parting from the spirit of the invention or the
scope of the appended claims.
What is claimed is:
l. In a heater of the character described, the
combination of a closable housing having a door
at the front thereof, a partition structure therein
deñning a plurality of vertical slots each sub
stantially Wider than the article to be received
therein, said partition structure comprising a
plurality of metal plates ñxedly secured to each
other in parallel spaced relation at three of their
corners, each plate having a relatively large cen~
tral opening therethrough, said housing com
prising an elevated ñoor consisting of laterally
spaced bars disposed transversely of said parti
tion plates, said floor constituting the sole sup
port for the partition plates and the articles
therebetween, and a heating furnace beneath said
floor.
2. In a heater of the character described, the
combination of a closable housing having a door
at the front thereof, a partition structure therein
deñning a plurality of vertical slots each Wider
than the article to be heated therein, said par
tition structure comprising a plurality of metal 5
plates secured solely to each other in parallel
spaced relation, each plate having a relatively
large central opening therethrough and having
a portion at the top thereof that extends from
front to rear of the housing against which an
article may lean While being placed in the hous
ing, said housing having a perforate floor con
stituting the sole support for the partition struc
ture and articles to be heated, and means for
heating the interior of the housing.
15
3. In a heater of the character described, the
combination of a closable housing having a door
at the front thereof, a partition structure there
in defining a plurality of vertical slots each
wider than the article to be heated therein, said 20
partition structure comprising a plurality of metal
plates secured solely to each other in parallel
spaced relation, each plate having a relatively
large central opening therethrough and hav
ing a portion at the top thereof that extends
from front to rear oi the housing against which
an article may lean While being placed in the
housing, said housing having an elevated per
forate floor constituting the sole support for the
partition structure and articles to be heated, and
electrical heating elements arranged about the
walls of the housing interiorly thereof.
4. A combination as deñned in claim 3 in
cluding a slidably mounted drip pan below the
perforate floor.
ARCHIBALD A. DUNCAN.
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