Improvements in Gas-cocks for Gas Burners.
Year: 1899

page_text: Date of Application, 25th Feb., 1899-Accepted, 1st Apr., 1899
Improvements in Gas-cocks for Gas Burners.
I, CARL GEORGE ALEXANDER STREUBEL, of 43, Lehmweg, Hamburg, in the
Empire of Germany, Engineer, do hereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates to a gas cock for lamps provided with two or more burners
each of which is furnished with an ignition Hame. The plug of this cock is so
arranged that one of the principal flames and the ignition flame of the opposite
principal flame are ignited or extinguished alternately, whilst in two other positions
of the cock, either both the principal flames opposite each other or their ignition
flames are alight. In the case of lamps provided with a number of burners-four
or eight for example-all the principal Hames upon one side of the lamp or the
whole of the principal flames upon the other side may be either alight or extin-
guished or in two other positions of the cock all the principal flames or all the
ignition flames may be extinguished. The possibility of alternately igniting or
extinguishing the burners of lamps provided with a number of burners (for example
four or eight light gaseliers) is advantageous inasmuch as it enables the illumina-
tion to be caused to correspond to the traffic at any particular time of night, and
thus to effect economy in the consumption of gas, as it is possible to extinguish
the principal burners in thoroughfares where there is no traffic and leaves those
in frequented thoroughfares alight. According to my invention this result may
be obtained by a single cock.
In the accompanying drawing a double burner is illustrated by way of example.
Figure 1 illustrates the general arrangement of the double burner as a whole,
partly in section.
Figure 2 is a section through the cock and its casing on an enlarged scale.
Figure 3 is a section on line x-x of Figure 2.
Figures 4 to 7 illustrates various positions of the cock.
In the casing of the cock (Figures 2 to 7) are formed four passages A B C D to
which are fitted the gas pipes for the principal and the ignition flames. The
passages A B serve for the supply of the principal flames and the passages C D
for the supply of the ignition flames. The gas pipes may be divided or branched
off above when instead of two principal and ignition flames as illustrated there are
four or more. A single passage E serves to conduct the gas to the plug of the
cock F. The four pipes fitted to the passages A B C D are supplied with gas in
such a manner that one principal flame and the ignition flame of the opposite
burner are always ignited alternately. For this purpose the plug of the cock is
provided with a passage a, which terminates at each end in an enlargement or.
recess a¹ a², and with a groove 6 cut in the upper portion and extending for about
three fourths of its circumference. The gas-supply passage E in the casing of the
cock is sufficiently wide to cover at the same time the enlargement a² of the pas-
sage a and the groove b, whilst the gas passages A B of the principal flames coin-
cide with the passage a by means of the enlargement a¹ and the gas passage C D
of the ignition flames with the groove b.

page_text: In Figure 4 the cock is shewn turned, by means of its lever, in such a manner
that both the ignition flames are alight, the two principal flames being extin-
guished. The passage E and the groove b form the direct gas supply with the
passages C and D, whilst the passage. a. is not in communication with the path of
the gas to the principal flame.
If the lever of the plug is now rotated 45° in a downward direction (Figure 5)
the right-hand ignition Hame is extinguished after it has ignited the right-hand
principal flame, whilst the left-hand ignition flame remains burning. The gas for
the supply of the ignition flames passes from the passage E through the groove b
into the left-hand ignition passage C, whilst the right hand ignition passage D is
closed, the gas for the principal flame enters the passage B for the right hand
principal flame through the enlargement a², the passage a and the enlargement a',
whilst the passage A for the left hand principal Hame is closed.
In order that both the principal flames may be ignited, the lever of the cock is
turned through a further angle of 45° (see Figure 6), that is to say, into a vertical
position. The enlargement of the passage a will then coincide with the two
passages A and B, whilst the ignition flame passages CD are closed by that portion
of the plug which is not provided with a groove.
In order to ignite the left hand principal flame and the right hand ignition flame,
the lever of the gas cock-is caused to rotate through yet-another-angle-of-45°
(Figure 7). In this case the right hand ignition flame passage D is opened, that
is to say, placed in communication with the groove b, whilst the right-hand
principal flame passage B is closed.
_ 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:-
:-
A gas cock for lamps with two or more burners and a corresponding number of
igniting flames characterised by the fact that in the periphery of the plug of the
cock for the ignition flame a groove (b) is formed whilst for the principal flame a
passage (a) is formed in the cock plug, recesses or enlargements (a¹a²) being pro-
vided at both ends of the passage upon the circumference of the plug, the said
groove and passage occupying such relative positions that by suitably manipu-
lating the cock the principal flames of one side and the ignition flames for the
principal flames of the other side may be alternately ignited and extinguished.
Dated this 25th day of February 1899.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.