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Патент USA US2130434

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Sept. 20, 1938.
M. B. SOLOMON
2,130,434
ALCOHOL BURNER
Filed April 18, 1936
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Sept- 2%, 1938-
M. B. SOLOMON
2,130,434
ALCOHOL BURNER
Filed April 18, 1936
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Patented Sept. 20, 1938
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2,130,434
ALCOHOL BURNER
Morris B. Solomon, New York, N. Y.
Application April 18, 1936, Serial No. 75,034
8 Claims. (Cl. 158—97)
The present invention relates to improvements the burner tip, as illustrated in Fig. 2.
in an alcohol burner and has for an object to
provide an alcohol burner adjustable to provide
different ?ame intensities.
A further object is to provide a control means
for the burner which regulates the ?ame inten-
Band
E3 is pivoted some distance from its ends at E9
and 25 to provide swinging valves 25 for control
ling the air supply ports 22 in the casing. The
band l8 so pivoted may be used to cut o? the air 01
supply to the burner by covering the air ports 22
sity and also acts to extinguish the ?ame when
and the movement of the band serves to cover
it is no longer desired.
A further object is to form the burner with
the burner tip H’ and extinguish the flame. For
the purpose of moving the band a stem 23 and
10 a shield or casing which serves to retain heat
and vaporize the fuel and which also serves to
Operating knob 26 are attached to the band at 10
the pivot 26.
create a forced draft,
With the foregoing and other objects in view,
the invention will be more fully described here15 inafter, and will be more particularly pointed
out in the claims appended hereto.
In the drawings, wherein like symbols refer to
like or corresponding parts throughout the several views,
20
Figure 1 is a central vertical section of a burner
embodying the features of the present invention.
Figure 2 is a top plan View of the same.
Figure 3 is a side elevation of the left side of
the burner shown in Figures 1 and 2.
It will be noted that due to the spherical shape
of the casing 15 a free air circulation from the
air ports 22 up through the burner tip H is per
mitted even when the fuel holder ill is in place 15
as will be seen in Figure 1. When the fuel in the
holder H3 is ignited primary combustion takes
place just above the mesh Cover 52. The flames
thus produced travel along the spherical walls
of the casing 55 to the burner tip where, due to 20
the great excess of oxygen, a secondary combus
tion takes place and the fuel is completely con
25
sumed in a blue or colorless ?ame. The ?ames
which travel along the inner wall of the casing
Figure 4 is a side elevation of a modi?ed form
of burner in which the relation of the ?ame con-
55 rapidly heat the same and with the air ports 25
22 open a fairly rapid convection current of air
trol and the ?ame extinguisher is modi?ed.
is established which aids the primary combus
Figure 5 is a side elevation of a further modi?cation of burner in which the shape of the cas30 ing has been changed,
Figure 6 is a side elevation of burner shown in
Figure 5 looking at the left side thereof, and
Figure 7 is a side elevation of still another
modi?cation having a further modi?ed ?ame ex‘J5 tinguisher and ?ame control.
Referring now to the drawings and particularly to Figure 1 the burner comprises a fuel
holder til ?lled with a suitable wick material ii
which is saturated with the alcohol or the par40 ticular fuel to be used. The wick is held in place
- by a cover 52 of a coarse mesh which is kept
within the holder it by a ring l3 placed around
the inside of the top of the holder ill. The holder
ill is set upon a tray l4 and the spherical shaped
45 shield or casing i5 placed over the container and
onto the tray ill. The spherical casing is open
at the bottom to ?t snugly about the container
i0 and is adapted to ?t on the tray 84 to form
a seal with the upstanding ?ange it of the tray.
50 The dome of the casing l5 has a section cut out
to provide a burner tip H. A circular band l8
is placed over the casing i5 and is pivoted at
diametrically opposite points !9 and 29. Band
58 is slightly wider than the width of the burner
55 opening ll which permits a complete closing of
tion and produces a stronger ?ame- Heatine the
casing 15 also assists in vaporizing the fuel so
that it is possible to produce very rapid burning
when such is desired. After the casing has been
heated with the air ports 22 open the flame will
grow with the increase of heat until it may be
come desirable to check the burning. This may
be done by rotating the band Iii by means of the
knob 26!- which is preferably made of wood or
some other non-conducting material. The band
i8 is rotated until the valves 2! begin to cover
the air ports 22 with consequent checking of the
?ame. Further closing of the air ports 22 will
30
35
‘
40
result in greater modulation of the ?ame until
the desired adjustment is produced. It is also
possible by continuing the rotation of the band
to partially cover the burner tip so that further
adjustment is possible. It will be observed from 45
igure 3 that the valves 2i completely cover the '
air supply ports 22 before the upper part of the
band It cuts down the burner tip ll. As a result
of this the air supply may be completely shut off
?rst and then if necessary the tip opening may 50
be decreased. Rotation of the band i8 to the
vertical position results in completely covering
the tip H’ and extinguishing the ?ame.
The
outer ends of the valves 2| are shaped to pro
vide for complete coverage of the‘ air supply ports 55
2,130,434
2
and yet leave clearancebetween the valve and
the ?ange l6 of the tray I4 as the band is rotated.
It will also be noted that when it is desired to
extinguish the burner_quickly when it is com
pletely open the extinguishing band I8 ?rst cov
ers the air supply ports 22 then the burner tip
I‘! so that ?rst the air supply is completely shut
off from the alcohol and all tendency of con
tinued burning or smouldering of the wick is
10 averted.
Referring now to the form shown in Figure 4,
the cylindrical casing 25 has a dome-shaped top
in which may be cut burner tip H, as before
shown. Fuel container It is set down into the
15 tray 26 which supports the casing 25 upon an
outstanding ?ange 21. The tray 26 in this form
carries the air supply ports 28 at opposite points.
of its circumference. In this form the valves 2|
and the band l8 operate about the same time so
20 that air ports 28 are closed at the same time as
the burner tip I’! is closed. The dome in this
burner is a great deal higher than the top of the
burner above described with the result that there
is a greater air space between the top of the fuel
holder 10 where initial combustion takes place
and. the burner tip I‘! where the secondary or
complete combustion takes place. One result of
2%
air drawn through the burner as well as heating
up the burner and assisting in volatilizing the
fuel.-
'
It is obvious that various changes and modi?
cations may be made in the details of construction
and design of the above speci?cally described
embodiment of this invention without departing
from the spirit thereof, such changes and modi
?cations being restricted only by the scope of the
following claims.
,What is claimed is:
_
15
1. An alcohol burner comprising a fuel holder,
a casingenclosing said fuel holder the upper por
tion of which is spherical, a tray for receiving
both holder and casing and having an upstand
ing ?ange to seal the bottom of the casing, said 20
casing being spaced from said holder and pro
vided with an air port in its lower section, the
upper portion of said casing having a centrally
located opening to act as a burner tip, a band
pivoted on opposite sides of said casing to travel
across said opening when rotated about its piv
ots, and a valve for said air port moving with
said
band across said air port, the length of said
this is that there is a relatively large volume of .
burner tip opening being less than the diameter
, heated air in this space which serves to increase
so
dome shaped top. It has been found that the
flames at the. top of the fuel container travel up
along the inside of this top and this has a very
pronounced effect in increasing the quantity of
the draft through the burner when the ports28
are open. This form is not susceptible of such
?ne adjustments as the ?rst form of burner due
to the change in proportion of the extinguishing
. portion and the air supply valve portions of the
band.'
Referring now to the form shown in Figure 5,
the casing 29 is mainly cylindrical and provided
with the dome 30 which is ?attened at its ex
treme upper portion as at 3i. Referring to Fig. 6,
the burner tip I1 is cut through this?at portion.
In this burner the band 32 consists only of an
extinguishing loop and the air ports 22 in oppo
site sides of the casing are always open. The
dome shaped upper portion 30 (seen in Fig. 5)
serves to increase the amount of air ?owing
45
through the burner and to increase thereby the
of the fuel holder.
- 2. An alcohol burner comprising a fuel con
tainer, a casing about said container apertured
at its bottom to ?t over the container the top
portion of which is dome-shaped, said top por
tion being provided with an opening to act as
a burner tip, and said casing being provided with
air ports at opposite sides thereof, a band ?tting
partly around said casing to cover said burner
tip opening and said air ports, and said band be
ing pivoted inwardly of its ends at opposite sides
of said casing to provide a loop movable over the
top of the casing to cover the burner tip open
ing and below the pivots a pair of valves for said
air ports movable to close said ports, said loop
and said valves moving simultaneously, said
valves closing said ports before the loop covers
tip opening.
amount of combustion taking place. Variation the3. burner
In an alcohol burner having a fuel con
of the size of the ?ame is accomplished by cut
tainer, a casing about said container comprising
ting down the size of the opening of therburner ' a body portion spaced away from said container ,
tip. This form of the device is particularly use
ful where a narrow burner is needed as this does
not take up the amount of space required by the
spherical type and it is not as tall as the type
shown in Figure 4. In many applications the
amount
of adjustment obtainable with this burn
55
er is satisfactory.
With reference to the form of burner shown
,in Figure 7, the casing 34 is cylindrical and is
crowned by the dome shaped top 35 in which is
60 cut the wide burner tip opening 36. The fuel
container and the casing rest on the tray 33 and
the air ports 22 are'placed in opposite sidesof the
casing 34. The band i8 is pivoted to swing across
the burner tip opening 38 and to carry the valves
65 31 for the ports 22. The loop of the band which
travels across the burner tip opening is narrower
than the greatest opening of the burner tip open
ing so that complete extinction of the flame is
. not possible but only reduction in the effective
70 size of the burner tip opening. The valve portion
3? of the band ?ares outwardly toward the end
so that ports 22 are closed about the same time
as the loop of the band‘ it passes across the
_ burner tip opening.
All forms of burners above described have the
and a dome shapedv upper portion having a
burner tip opening therein, said body portion hav- ‘
ing air ports at opposite sides thereof, a control
band pivoted on' said body portion providing a
loop for restricting said burner tip opening, and
valves for closing said air ports simultaneously
when the band is rotated.
4. A burner for volatile fuel comprising, a fuel
holder, a' casing enclosing said fuel holder, said
casing ‘being spaced from the upper part of the 60
fuel holder, and having a dome-shaped top, said
top portion being provided with an opening there
in to act as a burner tip, the area of said open
ing being considerably less than that of the up
per portion of the fuel holder, said casing also
being provided with an air port in its lower part,
and a band having a width substantially equal
to the width of the burner tip opening in the
' dome-shaped top, said band being pivoted to said
casing to travel to a position over said burner
tip opening, when rotated about its pivots, and
a valve for said'air port moving with said band
across said air port for closing the same sub
stantially‘simultaneously with the closing by the
band of the burner tip opening.
70
2,130,434
5. An alcohol burner comprising a cylindri
cally-shaped fuel holder, a dome-shaped casing
about said holder having an elongated burner tip
opening in the top thereof, said casing being
spaced away from said holder to provide an air
space therebetween by which the ?ame from. the
fuel is passed out of the burner tip opening, said
casing being provided with air port openings in
its lower part, and means on said casing for si
10 multaneous control of the burner tip and the
air port openings.
-
6. An alcohol burner comprising a cylindrical
fuel holder, a casing enclosing said holder and
having a dome-shaped top in which is provided
15 centrally thereof, an elongated burner tip open
ing, said casing being provided with air ports in
its lower portion, said casing being spaced away
from said holder to provide an air space there
between by which the ?ame from the fuel is
20 passed out of the burner tip opening, a band
pivoted on said casing and adapted to gradually
close, ?rst the air ports and then the burner
tip opening, said air ports being completely
closed before the burner opening is closed and
25 remaining closed while the burner opening is be
ing closed.
7. A burner for volatile fuel comprising a fuel
holder, a casing enclosing said fuel holder, said
3
casing being spaced from the upper part of the
fuel holder and having a dome-shaped top, said
top being provided with an opening centrally
thereof to act as a burner tip, said opening being
considerably smaller than the top of the fuel
holder, said casing also having air ports in its
lower part, and a band the Width of which is sub
stantially equal to the width of the opening in the
dome-shaped top, said band being pivoted to said
casing at opposite points and fully covering said
10
opening when rotated about its pivots.
8. An alcohol burner comprising a cylindrically
shaped fuel container for solid alcohol, an en
closing casing having a spherically shaped top,
the spherically shaped top of said casing being
spaced from the top of the container to provide 15
a dome-shaped space therebetween, said top of
the casing having an elongated opening cut cen
trally thereacross, said opening being widest
above the central part of the container and ta
pering towards its ends, said opening in the cas 20
ing acting as a burner tip, and a control band
curved to conform closely to the shape of said
top and pivoted to the casing so as to be mov
able to cover said burner tip and extinguish the
?ame, said band covering the entire burner tip 25
opening when placed over the same.
MORRIS B. SOLOMON.
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