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Déc. 23, 1947.
p, w, 'BRQwNE
.7 Filed Sept. 12, 1944
3 Sheets-Sheet I
- Inventor
PA UL 14/. B30 WNE,
Dec. 23, '1947.
Filed Sept. 12, 1944
3 Sheets-Sheet 2'
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Decg. 23, ,1947.
Filed Sept. 12, 1944
3 Sheets-Sheet 3
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Patented Dec. 23, 1947
Paul W. Browne, Roodhouse, 111., assignor of ?ve
per cent to Coy H. Mans?eld and ?fteen per
cent to Charles A. Billings, both of Roodhouse,
Application September 12, 1944, Serial No. 553,731
2 Claims.
(01. 219-39)
The present invention relates to new and use
ful improvements in electric heating units of a
type commonly knOWn as space heaters and the
invention has for its primary object to provide
inner and outer jackets spaced from each other
with electrical heating means for heating the
above the floor on which the inner jacket is
mounted and being open to permit escape of air
downwardly between the side walls of the inner
and outer jackets as shown in Figure 3 of the
drawings. The top of the outer jacket 1 is formed
with a cylindrical housing 9 having air inlet
openings NJ in the sides thereof and within the
inner jacket and means for circulating air be
housing is positioned a fan H operated by a
tween the jackets for discharge into the room for
motor l2 supported on top of the housing 9. The
heating the latter.
A further important object of the present in 10 fan II is arranged to draw air into the opening
l0 and to force the same downwardly between
vention is to provide an electric heating element
the inner and outer jackets and outwardly
mounted within the .inner jacket, the heating
through the lower edge of the outer jacket.
element including illuminating means at the base
The inner jacket 5 is heated by means of an
thereof, and a magnifying lens at the top there
electric heating unit designated generally at l3
of adapted to project light against the top of
and which is of substantially cylindrical con
the inner jacket and providing means for ad
struction and spaced from the walls of the inner
justing the top of the heating element relative
jacket 5 by means of lugs [4 formed on the inner
to the top of said inner jacket.
walls of said inner jacket, the heating unit be
A still further object is to provide an appara
tus of this character of simple and practical 20 ing free of the lugs to permit vertical adjustment
of the unit in the jacket.
construction, which is ef?cient and reliable in
The walls of the heating unit l3 are prefer
performance, relatively inexpensive to manufac
ably constructed of glass, or similar material, for
ture and maintain in operation and otherwise
passing heat therethrough by radiation, but
well adapted for the purposes for which the
same is intended.
25 may be formed of metal for passing heat through
the same by conduction and the top of the heat
Other objects and advantages reside in the de
ing unit It is closed by a plano-convex magnify
tails of construction and operation as more fully
ing lens [5 the purpose of which will presently
hereinafter described and claimed, reference be
ing had to the accompanying drawings forming
part hereof, wherein like numerals refer to like 30 An electric heating element I 6 is attached to
the inner side walls of the heating unit I3 by
parts throughout, and in which:
means of lugs l'!, the heating elements including
Figure 1 is a side elevational view of the heat
sections extending vertically of the walls of the
ing unit.
heating unit [3 and the heating element being
Figure 2 is a similar view showing the adjust
ing means for the heating element.
35 electrically connected to a suitable source of
power by means of the wires I8. The heating
Figure 3 is a vertical sectional view taken sub
element I6 is of the type that glows and the light
stantially on a line 3——3 of Figure 2.
rays therefrom are collected and distributed by
Figure 4 is a transverse sectional view taken
the lens 16 against the top 6 of the jacket 5.
substantially on a line 4--4 of Figure 3.
An inverted dome-shaped bottom I9 is se
Figure 5 is a fragmentary vertical sectional 40
cured to the lower edges of the heating unit I3,
view illustrating a modi?ed form of heating ele
the bottom wall l9 being formed with a series
ment, and
of openings l9’ to permit the escape of heated
Figure 6 is a bottom plan view of the heating
air from the heating unit l3 upwardly within
element of the form illustrated in Figure 5.
Referring now to the drawings in detail and 45 the inner jacket 5. The lower portion of the
bottom member I9 is provided with a re?ector 20
?rst with respect to the form of the invention
secured in position by latch members 2| and at
illustrated in Figures 1 to 4, inclusive, the
numeral 5 designates an inner jacket, preferably
the center of the re?ector 20 is mounted an
electric lamp 22 projecting upwardly from the
constructed of light weight metal with its lower
end open and adapted to rest on the floor of a, 50 bottom IQ of the heating unit, the lamp being
room and provided with a dome-shaped top 6.
suitably connected to a source of current.
An outer jacket 1 is mounted in spaced relation
over the top and upper portion of the side walls
A ring member 23 is secured to the outer surface
of the bottom l9 having pins 24 at diametrically
of the inner jacket 5 by means of lugs 8, the
opposite sides of the bottom and projecting into
lower edge of the outer jacket ‘I terminating;_ 55 slots 25 formed in the upwardly inclined ends 26
of levers pivoted on a pin 21 extending trans
versely of the bottom portion of the inner jacket
er spaced apart jackets closed at their top por
tions, said outer jacket terminating above the
5 and to which a lever 28 is attached extending
outwardly of the jacket with a vertical screw 29
threaded in the outer end of the lever 28, the
screw being rotatably mounted in a bearing 39
ing atmospheric air under forced draft down
J'usting the heating unit [3, the air space between
portions, said outer jacket terminating above
bottom of the inner jacket, means for circulat
wardly between the walls of the jackets from the
tops thereof and outwardly at the lower edge of
on the outside of the jacket 5 and formed at its
the outer jacket, and means within the inner
upper end with a manipulating knob 3| to ver
jacket for heating the latter.
tically adjust the heating unit l3 in accordance
2. An electric heater comprising inner and
with the manipulation of the screw 29. By ad-' 10 outer spaced apart jackets closed at their top
the top of the jacket 5 and said unit may be varied
the inner jacket, means for circulating atmos
to achieve quick or slow heating.
pheric air under forced draft downwardly be
In the form of the invention illustrated in Fig
tween the walls of the jackets from the tops there
ures 5 and 6, the top of the heating unit 32 is 15 of and outwardly at the lower edge of the outer
closed by a magnifying lens 33 to the underside
jacket, an electric heating unit in the inner jacket
of which a heating coil 34 is attached by means of
spaced from the top of said inner jacket, and
the lugs 35. Otherwise, this form of the inven
means for vertically adjusting said heating unit
tion is similar to that heretofore explained.
relative to the inner jacket to vary the air space
In the operation of the device heated air from 20 between the top of said unit and the top of said
the heating element I3 will rise into the inner
inner jacket.
jacket 5 for heating the top and side walls there
of, the heated air being forced downwardly and
outwardly of the bottom of the outer jacket 1 by
the electric fan I 1'. Light rays from the lamp 22
The following references are of record in the
will be projected upwardly and collected and dis
?le of this patent:
tributed by the lens I5 against the inside of the
top 6 of the jacket 5 to further heat the latter.
It isbelieved that the details of construction and
manner of use of the device will be readily under
stood from the foregoing without further detailed
Having thus described the invention, what is
claimed is:
1. An electric heater comprising inner and out
Sanctuary ________ __ July 31, 1928
Fisher ____________ __ Apr. 15, 1930
France ____________ Nov. 20, 1928
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