Improvements in Gas Cocks for Street Lamps.
Year: 1898

page_text: Date of Application, 4th Oct., 1898-Accepted, 28th Jan., 1899
Improvements in Gas Cocks for Street Lamps.
I, ALEXANDER STREUBEL, of Lehmweg. 43, Hamburg, in the Empire of Germany,
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 follow-
ing statement;
The object of this arrangement is to render the feeding of the auxiliary or igniting
burner unnecessary whilst the principal burner is in operation, the auxiliary
burner being then extinguished. This result it is intended to effect by means of a
single cock, regulating the supply of gas to the principal burners and the auxiliary
burners, the construction of which cock forms the object of this invention, which
is illustrated in the accompanying drawing.
Fig. 1 showing the whole construction of the double burner, partly in section
and Fig. 2 representing details. In Fig. 3 the cock is shown, with a casing, in
section, whilst Figs. 4 to 7 are sections through the supply openings of the cock
in the different positions of plug. These positions (the degrees to which the cock
is opened or otherwise) are indicated by dashes in the several figures.
As shown in Fig. 1, four gas pipes A B C D run upwards from the cock to the
burners, A B being extended for the principal burners and CD for the igniting
burners. The four pipes are supplied through the medium of the cock, in such a
manner that the igniting burners do not continue in operation after the principal
burners are lighted, as is the case in connection with double burners hitherto
employed, but can be at once extinguished, or must go out, after they have been
used for the purpose of ignition.
The channels m n o serve for supplying the gas to the gas cock, whilst the
channels p q r s are for conveying the same to the pipes A B C D.
For the passage of the gas through the plug there are three holes I II III of
which II acts for the principal burners and I and III for the auxiliary burners.
The holes or perforations are furnished at the periphery of the plug with furrow
like widenings which are indicated by the letters a and b for the hole I, c and d
for II and e and f for III. The effect of these extensions is that when the plug is
turned the supply of gas is correspondingly regulated.
Fig. 4 shows how the gas cock is turned by means of the lever so that both
auxiliary burners may be alight. The holes I and III establish direct communica-
tion between the channels n and o and the channels r and s whilst the hole II is
out of communication with the passage for the gas to the main burners.
If, now, the lever of the cock or plug be turned downwards to the extent of
45 degrees as is shown in Fig. 5 the effect will be that the auxiliary burner to the
right will be extinguished, after having lighted the principal burner on that side
(Fig. 1) and the auxiliary burner on the left will remain alight. The gas for the
auxiliary burner to the left enters through the channel n into the extension a
and from thence into 6 and from 6 into the channel r; the gas for the main burner
to the right passing through the channel m extension c and channel II into the
extension d and from thence to the channel p. The gas is cut off from the principal
burner on the left.

page_text: In order that both burners may be lighted, the plug lever of the gas cock
is turned (as shown in Fig. 6) from the position shown in Fig. 5 to the extent
of 45 degrees downwards so that it assumes a vertical position. Hereupon, the
two channels and m are united by means of the extension c whilst the exten-
sion on the other side of the plug effects the conduct of the gas into the channels p
and of the main burner. The channels for the igniting burners' gas are closed
at the same time, whilst after the igniting of the burner on the left the gas for
the left hand igniting burner, has been also shut off.
In order to ignite the burner to the left and the igniting burner on the right,
the lever of the gas cock his turned back, from the position shown in Fig. 6, to the
extent of 90 degrees upwards, into the horizontal position seen in Fig. 4, whereby
both igniting burners are lighted, and is then turned further upwards into the
position shown in Fig. 7; the gas for the ignition burner on the right passes out
of the channel o, the extension e, into the hole III of the plug and is conveyed by
means of the extension f into the channel s. The gas for the principal burners is
conducted by means of the extension e from the channel 1, into the channel IT and
thence to the channel q. The left hand ignition burner goes out, after having
lighted the main burner on the left, and the passage I is closed, thus shutting off
the gas from the ignition burner.
In the drawing, only one principal burner is arranged on the channels A and B
but there may be several burners attached to each of them.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is:-
1. A gas cock for street lamps with double burners, arranged so as to extinguish
the igniting flames, the characteristic feature of which is that in the plug for the
main burner there is a groove or channel II with "widenings
" or extensions c d
at each side on the periphery of the plug, and for the igniting, flames two grooves
or channels I and III standing at an angle to the groove or channel II, with
grooves a bor e f formed on the periphery of the plug, which grooves or extensions
are so arranged that the channels in the case belonging to the ignition flames are
fed with gas when the plug is turned, for so long and so quickly that, before the
channels are closed, lighting of the main burner by the auxiliary burner is
effected and vice versa.
2. The improved gas cock for street lamps substantially as described with
reference to the drawings.
Dated this 4th day of October 1898
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, Agents.