improvements relating to Lighting by Means of Gas, and to Apparatus therefor.
Year: 1886

page_text: improvements relating to Lighting by Means of Gas, and to
Apparatus therefor.
I, GEORGES DELAPORTE, of 33 Rue des Bourdonnais, Paris, France, Manufacturer,
do hereby declare the nature of invention to be as follows:-
My invention relates to an improved method of lighting by gas whereby
I produce a light which approaches in whiteness and brilliancy the electric light.
In applying this method I make use of apparatus of special construction which
enables either ordinary lighting gas, or this gas in combination with oxygen so as
to produce an oxyhydrogen light, to be burnt at will.
When lighting gas is used alone, the combustion is effected by means of an
ordinary burner such as an argand burner, a fish-tail burner or the like. By the
operation of a single cock the light can be extinguished, or caused to burn with
ordinary gas or with oxyhydrogen gas, thereby enabling the white light which
oxyhydrogen gas produces to be obtained when desired.
The apparatus for carrying out this method is capable of numerous modifications.
According to one arrangement the casing or shell of the cock for controlling the
supply of gas is provided with five channels four of which are in the vertical plane
passing through the axis of the cock while the fifth which conducts the lighting
gas is in front of this plane.
The first channel communicates through the lateral tubes, with the burner.
The second and third channels conduct the oxygen to a central tube whence it is
conveyed to a second burner.
The fourth channel communicates with the said second burner through a suit-
able tube and conducts ordinary gas to the said burner.
The plug of the cock is provided with four passages and has a groove at its
surface.
Two of the passages hereinafter termed the first and second are oblique and serve
for the admission of lighting gas which arrives through the fifth channel of the
shell. These two passages terminate in the third passage which is also oblique
and can be placed in front of the first channel of the shell mentioned above.
The fourth passage of the plug which communicates with the first three and
is perpendicular to the axis of the plug, serves to convey to the fourth channel
ordinary gas when the oxyhydrogen burner is to be used.

page_text: The plug has in the plane of the second and third channels a groove which, when
it is in front of these channels, establishes their communication, and consequently
permits the admission of oxygen.
The handle of the plug is arranged in such a manner that when placed
horizontally the burner does not operate, none of the channels of the plug being
in front of the channels of the casing.
If the plug is turned from right to left through about 45 degrees, the first passage
of the plug is in front of the fifth channel of the casing and the third passage
corresponds with the first channel. The other passages of the plug, as well as the
groove therein, are in front of the plain portion of the shell or casing.
The gas from the fifth channel traverses the plug by following the first and
third passages and thence passes into the external crown through the first channel
and the said lateral tubes. The apparatus then acts as an ordinary burner.
By again turning the plug through 45 degrees the second passage of the plug is
placed in front of the fifth channel, the first passage is closed by a plain portion of
the casing and also the third passage; but the fourth passage of the plug, which
communicates with the second passage is in front of the fourth channel of the
casing. The lighting gas then enters the second burner.
At the same time the groove of the plug establishes communication between the
second and third channels so that the oxygen passes to the second burner and
produces an oxyhydrogen light.
The apparatus may be provided with regulating screws the ends of which enter
the channels of the casing and serve to regulate the amount of gas passing
there-through.
According to another arrangement a fish-tail burner is placed by the side of the
oxyhydrogen burner. In this case the casing is provided as before described with.
five channels.
The plug is also provided in the same manner as the plug above described with
four passages and a groove.
These passages and the incision fulfil the same functions as the corresponding
parts before described; but in the present arrangement if the plug is turned
through 45 degrees, by reason of the positions of the passages and channels of the
plug and casing the oxybydrogen burner operates first; if turned through 90 degrees,
the oxyhydrogen burner is extinguished and the fish-tail burner operates. It is
evident that this latter arrangement can be replaced by the former, it being
sufficient to change the direction of the channels of the cock and the position of
the supply pipes for gas and oxygen in order to modify the operation of the
plug and the action of the burner as an ordinary burner or as an oxyhydrogen
burner.

page_text: Apparatus therefor.
I, GEORGES DELAPORTE, of 33, Rue des Bourdonnais, Paris, France, 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:―
My invention relates to an improved method of lighting by gas, whereby
I produce a light which approaches in whiteness and brilliancy the electric light.
In applying this method I make use of apparatus of special construction which
enables either ordinary lighting gas, or this gas in combination with oxygen (so as
to produce an oxyhydrogen light) to be burnt at will.
When lighting gas is used alone, the combustion is effected by means of an
ordinary burner such as an "Argand" burner, a fish-tail burner, or the like.
By the operation of a single cock the light can be extinguished, or caused to
burn with ordinary gas or with oxyhydrogen gas, thereby enabling the white light
which oxyhydrogen gas produces to be obtained when desired.
The apparatus for carrying out the improved method is capable of numerous
modifications, some of which by way of example I have represented in the
accompanying drawings in which,
Figures 1 and 2 are vertical sections at right angles to each other of an Argand
burner provided with the improvements in one form the cock being supposed to be
closed.
'
Figures 3. 4. 5 and 6 are sectional views of the cock illustrating the operation of
the same.
"
Figures 7 and 8 are sectional views illustrating modified forms of apparatus.
A is the shell or casing of the cock for controlling the supply of gas which shell
is provided with five channels a b c d e four of which viz a b c d are in the
vertical plane x-x (Figure 2) passing through the axis of the cock while the fifth
channel e, which conducts the lighting gas, is in front of this plane, as shown in
figure 2.
The channel a communicates through the lateral tubes B and C with the
burner D, which serves for lighting with ordinary gas
The oxygen gas is conducted through the tube E; the channels b, c and the
tube G to the central tube F whence the gas d is conveyed to a second burner H
The channel d communicates with the burner H through the tube J, and
conducts ordinary gas to the said burner.
The plug K of the cock is provided with four passages f g h i and has a groove m
at its surface.
'
These two
The passages ƒ and g are arranged obliquely relatively to each other and serve
for the admission of lighting gas which arrives through the channel c.
passages terminate in the passage h, which is also arranged obliquely, and can be
placed to coincide with the channel a
3
J
.

page_text: The passage which communicates with the passages f, g and h and is perpen-
dicular to the axis of the plug, and serves to convey to the passage.d ordinary gas
when the oxyhydrogen burner is to be used.
The plug K has, in the plane of the passages b and c a groove m which, when
it coincides with these passages establishes communication between them and
consequently permits the admission of oxygen.
With the plug in the position represented in figures 1 and 2 the burner does not
operate, none of the passages of the said plug coinciding with any of the channels
of the casing.
If the plug is turned from right to left through an angle of about 45 degrees to
the position indicated in figures 3 and 4 (figure 3 being a section on the line y Y
figure 4,) the passage f of the plug is opposite to the channel e and the passage
corresponds with the channel a. The other passages of the plug, as well as the
groove m therein are closed by the plain or solid portions of the shell or casing A.
Ordinary gas now traverses the plug by following the passages of and h, and
thence passes into the external burner D through the channel a and the lateral
tubes B and C. The apparatus then acts as an ordinary burner.
By again turning the plug through an angle of 45 degrees it assumes the
position represented in figures 5 and 6, figure 5 being a section through the axis,
similar to figure 1.
In this position the passage g of the plug is in coincidence with the channel e,
and the passages and h are closed by plain portions of the casing but the
passage of the plug which passage communicates with the passage g is in
coincidence with the channel d of the casing. Lighting gas then enters the
burner F through the channels or passages eg i d. J.
At the same time the groove m of the plug establishes communication between
the passages b and c so that oxygen gas passes to the central burner through the
tube C. The burner then burns with an oxyhydrogen light.
Figure 7 represents a burner resembling that previously described except that it
is more compact and is provided with screws o, p, q placed at the ends of the
channels a¹, c¹, d¹ of the casing respectively which screws serve to regulate the
maximum amount of gas passing to the burner.
It is to be understood that the apparatus previously described may also be
provided with regulating screws at the same places.
Figure 8 represents in vertical section a fish tail burner provided with the
present improvements.
In this arrangement the burner M is placed by the side of the oxy-hydrogen
burner.
The casing A¹ is provided as before described with five channels a¹, b¹, c¹, d¹ e¹.
The channel a communicates with the burner M, the channel e¹ with the gas
supply pipe and the channel d' with the oxy-hydrogen burner H. The channels b¹
and c conduct the oxygen to the burner H, through the central tube F and the
lateral tube G¹.
The plug K¹ is provided in the same manner as the plug K above described with
four passages f, g, h, i¹ and with a groove m¹.
These passages and the groove fulfil the same functions as the corresponding
parts described with reference to Figures 1 to 6. In the present arrangement
illustrated in Figure 8 which represents the burner entirely closed, if the plug is
turned through an angle of 45 degrees the oxyhydrogen burner operates by reason
of the positions of the passages and channels of the plug and casing, if the plug
is turned through an angle of 90 degrees, the oxy-hydrogen light is extinguished
and the fish tail burner operates. It is evident that this latter arrangement can
be replaced by the former, it being sufficient to change the direction of the
channels of the cock and the position of the supply pipes for gas and oxygen in
order to modify the operation of the plug and the action of the burner as an
ordinary burner or as an oxyhydrogen burner,

page_text: 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,
First The method hereinbefore described for enabling lighting to be effected
by means of ordinary gas or by an oxy-hydrogen light.
Second-The improved apparatus constructed substantially as described with
reference to the accompanying drawing.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.