Year: 1886

page_text: I, HERBERT JOHN HADDAN, of 67, Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention, a communication to me
from abroad by Julius Quaglio and Christian Westphal, Engineers, of 78 Friedrich+
strasse, Berlin, Germany, to be as follows:-
This invention relates to gas burners receiving air heated by the escaping pro-
ducts of combustion. Each figure of the accompanying drawing shows, separated
by line xy, two different constructions, therefore the whole drawing six constructions
of the improved burners.
In the improved burner, the gas proceeds through a small tube b, down into the
accumulating chamber C, from there round a partition d, through the distribution
tubes e into the burner proper, which is a ring burner a.
The air enters in the direction of the arrows through the opening f into the
heating chambers, arranged concentrically round the chimney k, at first into 1, from
there into 2, into 3, into 4 and downward round the burner a to the flame enclosed
by the glass ball. A part of the air enters the ball directly from out of 2, for
protecting the same from the heat.
The products of combustion escape through the chimney k
The lower extremity of the chimney extending into the globe consists of a
porcelain cylinder g, supported by the metal-cylinder fastened in the chimney by
means of a bayonet-lock.
The interior air-heating chambers are provided with longitudinal ribs.
Fig. 1 shows at the right of x y a round burner, burning upward in a glass-globe
open at the bottom.
The gas enters through the tube b into the accumulating chamber c, from there
through tubes e into the ring burner a
The air passes the heating chambers, in the direction indicated by arrows from
outside to the inside, over the inner reflector n to the wall of the globe and
downward to the flame. The products of combustion escape direct through
the chimney k; through the bottom opening of the globe, air flows direct to
the middle of the flame and causes with the heated air, rising from the bottom of

page_text: the globe, the flame to become of a cylindrical shape. Fig. 2 at the left of a y shows
a burner a, the flame of which burns from outside to the inside.
The gas enters the accumulating chamber through tube b and from there through
distributing tubes into the ring burner a.
The air passes the heating chambers in the direction indicated by arrows, plays
about the burner and gets downward to the flame, which burns under the reflector
towards the chimney.
The products of combustion escape direct through the chimney.
Fig. 2 at the right of x y shows principally the same parts of construction, as the
left half. The gas, however does not burn from a ring burner, but from many slit-
or bats wing-burners, screwed from below direct into the accumulating chamber.
The reflector n is here bent convex, while it is, at the left half, shown straight with
a slight inclination to the chimney-opening.
The chimney, projecting from the air-heating chambers, is arranged for being
folded, to allow the burner to be easily kindled from the top. The chimney opens
the gas-cock by pressing down the key of the same, when falling to the side, as
indicated by dotted lines.
Fig. 3 at the left of x y shows a combination of Fig. 2 and Fig. 1 at the right
of a y.
The gas and the air have access to the flame in the direction of the arrows, and
as described above.
A novelty is in this figure the masking of the bottom opening of the chimney
through the inserted second reflector o.
Fig. 3 at the right of xy shows a ring burner, the flame of which burns upward
from the inside to the outside.
The air enters in the direction of the arrows from the top and through the
bottom opening of the globe, which is adapted to be regulated by the disc p,
fastened to a nut. The flame burns about the lower reflector and the products of
combustion escape direct through the chimney.
The gas proceeds to the flame from the bottom through the tube b.
The glass globes of all burners are separated by asbestos-rings from the metal.
Dated thin Oud da of Wah 1000

page_text: I, HERBERT JOHN HADDAN of 67 Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention, a communication to me
from abroad by Julius Quaglio and Christian Westphal both of Berlin, Germany,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The object of this invention is such a construction of a Gas lamp which will by
means of a supply of heated air produce a clear bright and intense light. The air
passing through compartments situated round the lower part of the central chimney
before it gets to the flame is heated by the burned gasses going off through the
chimney thus causing a more complete combustion. These compartments or heating
chambers are composed of two distinct parts The outer and larger part serves to
warm a large volume of air whilst the inner compartment situated directly round
the chimney heats a smaller quantity of air going directly to the flame The ribs
fixed on the partition wall between the two compartments form chanuels in which
the air gets warm and rises sooner than in the outer chambers-The inner com-
partment is larger below than above to give more room to the heated air on
account of its greater expansion so that the air may be conducted slowly and
proportionately to the flame.
Referring to the drawing Figure 1 shows a longitudinal section through the
lamp and Figure 2 a horizontal section through the burner and gas reservoir-
Figure 3 is a section showing in a larger scale the construction of the lamp. The
same letters refer to the same parts in all the figures.
The air enters (following the direction indicated by the arrows) in the outer
compartment A and rises between the ribs a and is conducted into the second com-
partment B where it moves downwards till it comes to the burner b and to the
inner and outer side of the flame. The gas entering by the tubes d arrives at the
annular reservoir e Through the channels fit is conducted to the burner b where
it burns with a flame passing over the cord of the pipe h with a flange i into the
central chimney C. The central chimney C is fastened to the outer chamber by a
flange. The pipe h adapted at the chimney is made of porcelain or fire proof
clay. The burned gases going off through the chimney heat the compartments
situated around the chimney, and all the air within the glass shade g is warmed
and the lamp burns with an intense clear and white light.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
In a regenerative gas lamp the combination of a central chimney, concentric
heating chambers annular gas reservoir and burner provided with a pipe h made
of fire proof clay or porcelain with a flange i substantially as described in the
specification and shewn in the drawings.