Improvements in Electrical Gas-lighters.
Year: 1898

page_text: Date of Application, 20th Sept., 1898-Accepted, 5th Nov., 1898
COMPLETE SPECIFICATION.
Improvements in Electrical Gas-lighters.
I, EUGEN SEILER, of Berlinerstrasse, 89, Charlottenburg, in the Empire of
Germany, Merchant, 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 an arrangement for lighting gas burners by means
of an electric spark with the help of a periodical auxiliary flame which is lighted
automatically when opening the gas cock and is extinguished after it has lighted
the principle flame.
In the annexed drawing Fig. 1 shows a vertical view of the apparatus. Fig. 2
is plan view of Fig. 1 Figs. 3, 4, 5 show the cock used with the apparatus and
allowing the passage of gas to the auxiliary burner during a certain period whilst
it is open, and at the same time closing the electric circuit.
The gas pipe a is closed by a valve b. Above the cock is arranged a burner
such as an incandescent gas burner as illustrated of known construction. The
casing of the cock has two borings so that immediately the turning begins and
before the pipe to the principal burner is opened, some gas can pass to the
auxiliary burner through the little pipe c. Shortly before the cock is com-
pletely opened or turned this second gas pipe c is closed again. The pipe c
passes to the burner edge, where it is curved towards the centre of the burner.
Directly under the burner gallery there is arranged an electro-magnet u
influencing an armature which carries an upright arm t ending in a platinum
contact at the mouth of the auxiliary burner. With the arms fastened on the
burner gallery it forms a spark gap. The current is introduced through wire m,
passes through the electro-magnet, its armature and arm and goes through
arms and the gas pipe back to the battery. In order to prevent the current
from always passing through the circuit a commutator for breaking contact is
arranged, operated by the cock of the burner. For this purpose an ebonite
plate is arranged between the burner and the pipe directly above the cock, insu-
lating thus the former from the pipe. On the back end of the cock a contact
arm f is screwed, sliding upon a contact piece attached to the insulated burner
and in such a manner that it slides off the contact piece when the cock is turned
fully off or fully on.
The device operates as follows:-
Immediately after the beginning of the opening movement of the cock, gas
passes into the pipe of the auxiliary burner and at the same time the electric
current is put in action. By the movement of the arm f. At the spark gap t
and s a line of sparks is formed lighting the gas coming out of the auxiliary
burner. On the further opening movement of the tap the gas immediately
enters into the principal burner and is lighted by the auxiliary burner. Shortly
before the pipe to the principal burner has its maximum opening, the entrance
to the auxiliary burner is closed and the current also at the same time is inter-
rupted.

page_text: The lighting is absolutely certain because there are a line of sparks and soot-
ing of the contact place is fully prevented, moreover it is effected without explosion
and is consequently especially suitable for burners with incandescent mantles.
The burner provided with this lighting apparatus scarcely differs in appearance
from an ordinary one, because the electro-magnet is small and is arranged directly
under the gallery.
Having now particularly described and ascertained the nature of this in-
vention and in what manner the same is to be performed I declare that what
I claim is: -
Electro-magnetic lighting apparatus for incandescent or other gas burners consist-
ing in an electro magnet arranged under the burner gallery, whose armature causes
a current break forming sparks laterally of the chief burner before the mouth
of an auxiliary burner, the gas conduct to this auxiliary burner being open
during a certain period of the part revolution of the cock during which period also
an electric contact attached to the gas cock is closed substantially as set forth.
Dated this 20th day of Sentember 1898
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, W.C., London.