Improvements in Bunsen Burners.
Year: 1889

page_text: Date of Application, 24th Dec., 1889
Complete Specification Left, 29th Jan., 1890-Accepted, 1st Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Bunsen Burners.
I, GEORG REIMANN, of 32 Schmidtstrasse, Berlin, German Empire, Manufacturer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object the simplification of Bunsen burners and the
simultaneous and corresponding regulation of the admission of gas and air thereto.
To this end the tube used in ordinary Bunsen burners for the exit of the gas, and
which is frequently liable to become fouled and stopped up, is in a burner constructed
according to this invention dispensed with and the burner tube is made to act as a.
regulating cock both for gas and air.
A Bunsen burner according to this invention is illustrated in the annexed drawings
in which
Fig. 1 is an elevation of the burner;
Fig. 2, a vertical section through the gas outlet opening;
Fig. 3 shews the lower part of the burner tube in elevation, the foot piece or holder
therefor, and the gas supply branch being in section, the parts being shewn in the
positions they occupy when the gas and air passages are half opened;
Fig. 4 is a plan of the burner.
a is the burner tube with lower tapering or conical end 6 that forms a plug cock,
through which is an inclined lateral slot or opening c for gas. This slot or opening
communicates by a recess c¹ in the conical end b with a gas inlet passage e in the
branch or union e¹ to which a flexible tube can be attached. d is the lower part of
the burner secured by screws to a foot d¹; it serves as a holder for the burner tube
and is formed with lateral air holes h and carries a set screw g.
The burner tube a which is furnished with handles f for turning it, has its conical
lower end fitted in the holder d in which it is retained by screwing in the set screw g
so as to cause it to enter a slot in the tube (Fig. 2).
The recess c¹, and slot or opening c are then in communication with the gas supply
passage e. When the tube 6 is turned so that only a small quantity of gas can enter
through the recess c¹ and slot or opening c the lugs or parts b³ formed by slotting the
lower conical end 6 of the tube a will be brought more or less in front of the air
inlets h, so that the supply of air will be regulated in exactly the same proportion as
the gas supply, thereby obviating the very inconvenient blowing through or back
ignition of the flame that is liable to take place with Bunsen burners of ordinary
construction when the supply of gas is reduced.
By means of the hereinbefore described construction of Bunsen burner, the following
advantages are secured :-
1. By means of the simultaneous automatic regulation of air in exact proportion to
the supply of gas, the flame is prevented from becoming white, and consequently from
becoming smoky or sooty; and further back ignition of the flame, when the latter is
turned very low down is prevented.
2. Since there is no special tube or mouth-piece for the exit of the gas, as in
ordinary Bunsen burners there is no liability of the burner becoming stopped up.
3. Convenience in handling, since in order to regulate the flame, no cock (which is
often situated at a distance) has to be adjusted, the regulation being effected by simply
rotating the burner tube in its holder.
4. Economy in gas, since the mixture of gas and air is more uniform and the
resulting combustion more perfect.
Dated this 24th day of December 1889.

page_text: COMPLETE SPECIFICATION.
Improvements in Bunsen Burners.
I, GEORG REIMANN of 32, Schmidtstrasse, Berlin, German Empire, Manufacturer,
do hereby declare the nature of this invention and in what manner the same is
to be performed to be particularly described and ascertained in and by the following
statement:
This invention has for its object the simplification of Bunsen burners and the
simultaneous and corresponding regulation of the admission of gas and air thereto..
To this end the tube used in ordinary Bunsen burners for the exit of the gas, and
which is frequently liable to become fouled and stopped up, is in a burner constructed -
according to this invention dispensed with and the burner tube is made to act as a
regulating cock both for gas and air.
A Bunsen burner according to this invention is illustrated in the drawings filed
with my Provisional Specification in which,
Fig. 1 is an elevation of the burner,
Fig. 2 a vertical section through the gas outlet opening ;
Fig. 3 shows the lower part of the burner tube in elevation, the foot piece or
holder therefor and the gas supply branch being in section, the several parts
being shewn in the positions they occupy when the gas and air passages are half
opened; and
Fig. 4 is a plan of the burner.
a is the burner tube with lower tapering or conical end 6 that forms a plug cock,
through which is an inclined lateral slot or opening c for gas. This slot or opening
communicates by a recess c¹ in the conical end 6 with a gas inlet passage e in the "
branch or union e¹ to which a flexible tube can be attached. This recess c¹ is of
tapering form as shown so that the cross sectional area of the passage for gas from
the passage e can be varied by adjusting the position of the recess in relation to such
passage e.
d is the lower part of the burner secured by screws to a foot d'; it
serves as a holder for the burner tube and is formed with lateral air holes h and
carries a set screw g.
The burner tube a which is furnished with handles f for turning it has its conical
lower end fitted in the holder d in which it is retained by screwing in the set-
screw g so as to cause it to enter a slot in the tube (Fig. 2). The recess c¹ and
slot or opening c can by turning the tube b be either placed in communication with
the gas supply passage e or this communication can be closed as desired.
The arrangement is such that when the tube 6 is turned so that the narrow part
of the recess c¹ is opposite the inlet passage e and only a small quantity of gas can
enter the recess c¹ and slot or opening c the lugs or parts 61 formed by slotting the
lower conical end 6 of the tube a will be brought partly in front of the air inlets /
so as to partly close these air inlets, and by turning the tube b to a further extent:
to increase the area of the gas passage in the lugs or parts b¹ will further uncover
the air inlets h in such a manner that the air supply will be regulated in exactly
the same proportion as the gas supply, thereby obviating the very inconvenient blowing
through or back ignition of the flame that is liable to take place with Bunsen
burners of ordinary construction when the supply of gas is reduced.
By means of the herein before described construction of Bunsen burner, the following
advantages are secured :-
1. By means of the simultaneous automatic regulation of air in exact proportion
to the supply of gas, the flame is prevented from becoming white, and consequently
from becoming smoky or sooty; and further back ignition of the flame, when the
latter is turned very low, is prevented.
2. Since there is no special nozzle or mouthpiece for the exit of the gas.into the
burner tube as in ordinary Bunsen burners there is no liability of the burner
becoming stopped up.

page_text: 3. Convenience in handling since in order to regulate the flame, no cock (which
is often situated at a distance) has to be adjusted, the regulation being effected by
simply rotating the burner tube in its holder.
4. Economy in gas, since the mixture of gas and air is more uniform and the
resulting combustion more perfect.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
A Bunsen burner, in which the lower tapering and laterally perforated part b of
the burner tube a which is capable of rotation in a foot piece or holder d, serves as a
cock for simultaneously regulating the supply of gas ant air, and in which the gas
flows from a supply passage in the foot piece or holder through a tapered recess c¹
and a lateral opening c bored with an upward inclination, directly into the interior
of the burner tube, whilst the air is supplied through other openings below the gas
opening substantially as described and illustrated.
Dated this 29th day of January 1890.
GEO. REIMANN,
Per L. W.