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Патент USA US2411313

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NOV» 19, 1946-
Filed Dec. 8, 1944
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Patented Nov. 19, 1946
George W. Zimbelman and John‘Cherry, Signal
Mountain, Tenn., assignors to Samuel Stamping
and Enameling Company, Chattanooga, Tenn., , ’
a corporationof Tennessee
`Application December 8,(Cl.
Serial No. 567,215
4 Claims.
The instant invention relates to portable heat
Il angularly disposed to `an adjacent leg member
ers and more particularly to a heater formed of
I8 of the wall I3. Similarly wall I5 is cut away
sheet metal and preferably utilizingl a gaseous
as at iâa forminga leg member I9 angularly dis
posed to leg member 2l] of front wall I3. The
One of the primaryobjects of the invention
latter is out away as at 2I forming the afore
is the construction of a heater of the character
aforementioned which is formed of only three
sheet metal parts, namely a body or shell of two
telescoping members and a burner member.
mentioned leg members I8 and 2D thereof and it
A Still another purpose of the invention is the
section Il but is of greater heighth and width.
As in shell section I I, shell section I2 has parallel
will be understood that section II has no rear
and no bottom wall.
formation of a sheet metal heater in which the
burner is not centered in the heater but under a
curved portion of one ofthe sheet metal mem
bers whereby the curved portion acts as a baiiie.
Still another aim is the fabrication of a sheet 15
metal heater ofthe type speciñed having struc
. Shell section I2 is constructed similarly to shell
side walls 22 and 23, a rear vertically extending
wall 24 terminating in a forwardly curved baille
portion 25. Also, each of walls 22 and 23 is cut
away as at 22a, 23a, respectively, provided with
a leg member 26 and 2l, respectively, while rear
tural features in which the heat flow attains a
wall 24 is cut away as at 28 similar to opening
high velocity with a tendency to spread at a low
2l of the section I I. By reference to Fig. 4 it will
level over the floor of the room in which the
be seen that the walls 22 and 23 of the section
heater is placed.
20 E 2 have an inwardly extending ledge 291 and 3u,
Yet another object is the making of a heater
respectively. Fig. 4 shows the two sections I I and
which is readily stamped from sheet metal, easily
I2 in position for assembly, section II being
assembled and spot welded together and which is
adapted to be telescopically positioned within
preferably given a porcelain-enamel ñnish to pro
section I2 with the wall I4 of section II in abut
tect and embellish the sheet metal members.
N) 31 ting parallel relationship inwardly of and with
The above and other aims and objects will be
wall 22 of section I2 while similarly wall I5 of
apparent from the detailed description herein
section I I is in abutting parallel relationship in
after appearing when taken in conjunction with
wardly of and with wall 23 of section I2. When
the appended drawings forming a part hereof
thus assembled the sheet metal sections or shells
and in which
30 II and I2 may be spot welded together inwardly
Figure 1 is a front elevational view 0f the com
and outwardly along substantially lines 3I and
pleted heater and showing the burner member in
32, see Figs. 2 and 3.
dotted lines;
The burner member is shown in Figs. 51, 6 and 'l
Figure 2 is a side elevational view of the heater
and comprises a sheet metal stamping designated
of Figure l;
Figure 3 is a sectional view taken on line 3-3
of Figure 1;
Figure 4 is a perspective View showing the rela
tionship of the two heater shells or sections prior
to the telescoping and uniting thereof;
Figure 5 is a plan View of the burner blank;
35 in its initial form generally as 4U.
It is essen
tially a sheet or metal plate formed with similar
raised portions 4I, 42 and other similar raised
portions 43 and 44 all symmetrically disposed
about the longitudinal axis of the stamping. A
40 second step in the formation of the burner mem
ber comprises perforating the adjacent raised
Figure 6 is a side elevational View of the blank
of Figure 5 after same has been bent to shape and
portions 43 and 44 to provide, a series of spaced
ports 45 and 4B. The next step comprises bend
provided with attaching lugs; and
ing the stamping 4I) along its longitudinal axis,
Figure 7 is a sectional View taken on line 'l-l 45 the completed burner being shown in Fig'. 6. The
of Figure 5.
abutting edges of the burner are preferably united
Referring ñrst to Figs. l to 4, inclusive, the
by spot welding as- 46a, and elsewhere and the op
reference character I0 designates the heater as
posed ends are provided with lugs 4l, 48 spot
a whole, which it will be seen is formed of two
I I comprises a front wall I3, parallel side walls
I4 and I5, the front wall I3 extending vertically
' sections or sheet metal shells II and I2.
and terminating at its upper end in a curved
welded thereto. The burner is now ready to be
positioned within the telescoped united shell sec
tions I I and I2. By reference to Figs. 2 and 4
it will be seen that the lugs 4l pass through an
opening 48a, in wall I4 of shell member II while
baffle portion I6. It will be noted that the wall
the annular conduit formed by abutting raised
I4 is cut away as at Illa forming a leg member 55 portions 4I and 42 terminating in an outwardly
flared entrance port 49 is positioned adjacent
opening 50 in wall I4, said opening being prefer
to be limited in this respect only as may be
necessary by the scope of the claims hereto ap
ably provided with a conventional valve member
5I adapted to receive gas hose 52 provided With
a conventional controlling valve 53. Lugs 41,
after being inserted through opening 48a are re
versely bent as will be seen in Fig. 2 of the draw
ings. Similarly, lugs 43 are positioned in wall I5
of section II. Finally, side wall member I4 may
be provided with a small aperture 54 for igniting
the gaseous fuel.
It will now be understood that upon ignition
of the gaseous fuel issuing from the ports 45, 46,
the heat ño‘w will be directed against curved por
tion or baiile I6 of front Wall I3 of the heater I0
and then deflected toward rear wall 24 of the
heater.. Convection currents are created by air
entering through cut-away portions 54a, E50., 2l,
What is claimed and desired to be secured by
Letters Patent is:
1. A heater having a hollow body portion, said
portion comprising a pair of sheet metal sections
one of which is of less height and width than
the other section, the smaller of said sections in
cluding a front Wall, parallel side walls and an
open rear portion, said front wall terminating in
a rearwardly curved baille portion, the larger
of said sections including a rear Wall, parallel
side walls and an open front portion, said last
mentioned rear Wall terminating in a forwardly
curved baffle portion, an open rear portion of the
smaller section being "telescopically positioned
within the open front portion of the larger sec
22a, 23a and 28 of the shell sections I I and I2 and
tion, said sections being united to each other and
serve to direct the heat ñow against the bafñe 25 20 having 'a burner mounted therewithin.
which projects it with a high velocity forwardly
2. The structure of claim l, said burner mem
into the room where- the heat is spread at a low
ber being positioned Within said smaller section
level adjacent the floor.
below the baflie portion thereof.
The surface of heater I0, as well as the burner
3. The structure of claim 1, each of said par
member, is preferably coated with a porcelain 25 allel side walls of both of said sections havingv a
enamel so that the sheet metal is protected and
cut-away portion adjacent the lower edge there
the final product has an attractive finished ap
of, said burner having lugs, >said lugs being se
cured to the side Walls of the smaller section
From the above it will be seen that there has
above its cut-away portions and below its baffle
been produced a burner Well adapted to perform 30 portion.
its intended functions. It is formed of veryv few
4. The structure of claim 1, the parallel side
and simple parts; may be manufactured at low
walls of said larger section having opposed in
cost and has proved to be eñ‘icient in use.
ous changes in the specific details shown and de
scribed will be apparent to those skilled in the 35
art and it is contemplated to cover all such and
Wardly extending ledges for partially support
ing said smaller section.
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