Improvements relating to the Carburretting or Naphthalizing of Gas and to Devices or Apparatus therefor.
Year: 1888

page_text: Date of Application, 11th Sept., 1888
Specification Accepted, 26th Oct., 1888
Improvements relating to the Carburretting or Naphthalizing of
Gas and to Devices or Apparatus therefor.
I. LEO DOMS, of Taborstrasse, Vienna, in the Empire of Austria, Merchant, do
liereby 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:
For increasing the illuminating power of gas it has been proposed to mix with the
gas naphthaline vapours which are generated by heating naphthaline in a receptacle
through which the gas is conducted. It has also been proposed to introduce the
naphthaline used for this purpose into the receptacle in the form of cast rods.
According to the said invention the naphthaline is used in the form of cartridges or
compressed cylinders made of naphthaline-powder, and the gas lamps in which they
are employed are of a shape similar to that of a candle. By the employment of
naphthaline-powder in paper cartridges, or compressed to form solid cylinders, in lieu
of cast rods, the disadvantages arising from the melting and casting of the naphthaline
are obviated. Moreover, owing to the form of the lamps employed being similar to
that of a candle, the lamps can be more conveniently arranged on gas-brackets or
chandeliers and the flames do not throw any shadow downwards.
In the accompanying drawings
Figures 1 and 1" show the form of the naphthaline cartridges, and
Figures 2 and 2ª the form of the compressed naphthaline cylinders, whilst Figures 3
to 7 show various arrangements of lamps for the use of the same.
In these Figures, A designates the naphthaline, B the receptacle designed for the
reception of the naphthaline, C the gas burner, and D or D1 D2 D3 the device used
for heating the receptacle containing the naphthaline.
The cartridges shown in longitudinal and transverse section in Figures 1 and 1ª are
made by stamping the naphthaline into paper casings a.
In order to introduce the cartridges into the receptacle B, the paper at the sides is
cut and the bottoms are removed so that the paper casing can be drawn back.
The
These
The cartridges represented in Figures 2 and 2 are made by pressing the
naphthaline in forms or moulds without a paper casing to a solid block.
pressing is effected without applying heat, that is to say, in the cold state.
compressed cartridges differ in their fracture as well as on their surface from the
cast pieces, as the cast rods are composed of large crystals whereas these improved
cartridges present a homogeneous structure.
As shown in Figures 3 and 5 the naphthaline contained in the receptacle B is

page_text: .
evaporated by the heating flame of the burner D. Gas is introduced into the upper
part of the receptacle B and after it has mixed therein with the naphthaline vapours,
it passes to one or more burners C. Instead of using a flame D for heating the
receptacle B, bent metal rods D D D³ can be used; as illustrated in Figures 6
and 7, which rods will conduct the heat of the lighting flame to the receptacle B
placed below. In order to enable the bent rods to be moved out of the reach of
the flame, they are either hinged (D' Figure 6) or pivoted (D2 Figure 6), or arranged
to slide (D3 Figure 7).
The dotted lines show the second position of these bent rods.
For regulating the admixture of the naphthaline vapours to the illuminating gas,
the regulator represented in Figures 3, 4 and 5 is used. By the perforated piston f
adapted to be displaced in the gas admission pipe e the openings g for admitting the
gas to the receptacle B can be opened or closed. By means of the valves the
discharge of the gas impregnated with the naphthaline vapours is regulated, whilst
the valve controls the discharge of the unmixed gas. By closing the openings gg no
naphthaline vapours can pass to the burner after the flame is extinguished. The
displacement of the piston and valves his effected through the medium of the cam i,
which on being turned causes the rod m carrying the piston f and the valves h to move
upwards against the pressure of a spring p.
In order that, by increasing the evaporating surface, a better evaporation of the
naphthaline shall be effected, the receptacles B are lined with paper or a thin layer
of other highly absorbent substance. The paper lining does not require to be
exchanged, as it does not burn in a hot state and in the cold state firmly adheres to
the wall of the receptacle.
The connection of the lamp with the gas pipe can be effected as shown in
Figures 3 and 4. In this case the hemisphere is fixed upon the gas pipes by
means of a pipe =.
The lamp is provided below with the hollow sphere i and a
and the two spheres and are
pipe The pipe is fitted into the said pipe
connected with each other by a bayonet joint y.
The lamp, as shown in Figures 3 and 4, can be provided with the outer casing K.
Besides being used for naphthaline the lamp can be employed for other solid
hydrocarbons which are capable of being evaporated.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is: :-
First. A candle-shaped receptacle B for naphthaline, the inner surface of which is
lined with highly absorbent material, substantially as and for the purpose described.
Second. The cylinders A made by compressing naphthaline powder in the cold
state, for the purpose described.
Third. The cartridges A filled with naphthaline powder for the purpose described.
Fourth. The regulator consisting of the valves hand and the piston ƒ serving
to close the openings g, in combination with the rod m and the cam i.
Fifth. The combination of the receptacle B for naphthaline with the gas admis-
sion pipe e and the heating burner 1) arranged laterally.
Sixth. The bent heating rods D1 D2 D3 represented in Figures 6 and 7, which can
be moved out of the reach of the flame by turning them in their socket or turning
them upon hinges, or by causing them to slide.
Dated this 11th day of September 1888.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.