Improvements in Electrical Apparatus for Lighting and Extinguishing Gas Burners.
Year: 1895

page_text: Date of Application, 16th Jan., 1895
Complete Specification Left. 16th Oct., 1895--Accepted, 16th Nov.,
1895
PROVISIONAL SPECIFICATION.
Improvements in Electrical Apparatus for Lighting and
Extinguishing Gas Burners.
We, AXEL ORLING, of 7, Engelbrektsgatan, Electrician, and OSCAR
EHRENFRIED WOLLERT, of 5, Banergatan, Engineer, both in Stockholm, in the
Kingdom of Sweden, do hereby declare the nature of this invention to be as
follows:-
This invention relates to apparatus for lighting and extinguishing gas burners
and to that class of such apparatus in which an electro-magnet is arranged with its
armature in conjunction with a ratchet wheel upon the plug of a gas cock and with
a movable bar of a spark producer in such a manner that when the armature
is moved the gas cock is opened and the spark produced to ignite the gas and that
when the armature is again attracted the gas will be extinguished.
Heretofore the electro maguet has been arranged in connection with a single
electric circuit.
According to our invention we employ in connection with the apparatus two
electrical circuits one of which serves for igniting the burner and the other for
extinguishing the same. For this purpose we arrange upon the plug of the cock,
in addition to the ratchet wheel operated by a pawl upon the magnet armature, a
cam or snail which operates two contact springs in the two electric circuits in such
a manner that, when one spring is in contact with a contact-piece arranged in
conjunction therewith, the other spring will be out of contact with its corresponding
contact piece.
With this arrangement when the circuit is closed, the armature will keep on
vibrating until the cam upon the plug is rotated sufficiently to break the circuit.
When the other circuit is closed the same action will again take place.
The spark producer is arranged in conjunction with the armature magnet in
substantially the same manner as heretofore.
When our invention is to be applied to a series of burners, as for instance to the
burners of the lamps of railway trains, we arrange in conjunction with the spring-
contacts two other contacts two of which serve for the local burner and two for
conveying the current to the next burner of the series. By this arrangement the
whole series of lamps will be lighted in succession, each succeeding one being
operated as the preceding one is lighted.
In this modification also instead of arranging the armature of the electro-magnet
to directly operate the movable part of the spark-producer, we advantageously
employ an independent magnet for the purpose, the armature of which is arranged
in conjunction with the said movable part of the spark producer.
In some cases we advantageously pivot the armature between two magnet coils
the armature swinging upon a central pivot, the magnets having two-pole pieces
arranged to face the armature.
Dated the 16th dow of Tanu 180

page_text: Improvements in Electrical Apparatus for Lighting and
Extinguishing Gas Burners.
We, AXEL ORLING, of 7, Engelbrektsgatan, Electrician, and OSCAR
EHRENFRIED WOLLERT, of 5, Banergatan, Engineer, both in Stockholm, in the
Kingdom of Sweden, 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:-
This invention relates to apparatus for lighting and extinguishing gas burners
and to that class of such apparatus in which an electro-magnet is arranged with its
armature in conjunction with a ratchet wheel upon the plug of a gas cock and with
a movable bar of a spark producer in such a manner that when the armature is
operated the gas cock is opened and the spark produced to ignite the gas and that
when the armature is again operated the gas will be extinguished.
Heretofore the electro-magnet has been arranged in connection with a single
electric circuit.
pawl
According to our invention we employ in connection with the apparatus two
electrical circuits one of which serves for igniting the burner and the other for
extinguishing the same, and provision is made for automatically lighting or
extinguishing a number of burners in succession. For this purpose we arrange
upon the plug of the cock, in addition to the ratchet wheel operated by a
upon the magnet armature, a cam or snail which operates two contact springs in
the two electric circuits in such a manner that, when one spring is in contact with
a contact-piece arranged in conjunction therewith, the other spring will be out of
contact with its corresponding contact-piece.
The spark producer is arranged in conjunction with the armature magnet in
substantially the same manner as heretofore
To enable our invention to be fully understood we will describe how it can be
carried into practice by reference to the accompanying drawing which represents a
gas burner provided with our electrical lighting and extinguishing apparatus.
a is the usual electro-magnet and 6 is the armature of the same; c is the ratchet
wheel on the plug d of the gas cock and actuated by the pawl e on the armature b;
fis the movable bar of the spark producer pivoted at 9 on the gas pipe h and
actuated by a rod i operated by the armature b so that when the armature is
attracted by the electro-magnet a the lower or spark producing end of the bar g is
lifted from a platinum contact piece carried by an insulated collar k on the gas
burner, all of which parts are of ordinary construction.
m is the cam or snail fixed to, but insulated from, the ratchet wheel c and having
a notch or step n on its periphery; o and p are the two contact springs placed so
that they bear against the periphery of the cam or snail at diametrically opposite
points; 9, q' and r, are the contact pieces of the springs o, p, such contact pieces
being insulated from one another and from the gas pipe h and arranged so that
when either of the springs enters the notch or step n in the cam m it will make
contact with its respective inner contact piece q or but when it rests against
the concentric part of the cam it will make contact with its respective outer contact
piece gor. The outer contact pieces q', r¹ are both, by means of a conductors,
connected to one end of the coil a, the other end of the said coil being connected
by a conductor to the collar k. The springs o and p are electrically
connected with push-pieces or switches u and v respectively. The push-pieces are

page_text: connected with one pole of the electric battery w, the other pole of the battery being
connected by the wire with the gas pipe 1. The inner contact pieces and are
?
connected respectively by conductors y and z with the springs p and o belonging to
a similar lighting and extinguishing apparatus on the next burner, which
apparatus is similarly connected with that of the third burner and so on through
the whole series of burners.
With this construction, if, when the parts are in the position shewn in the
rawing, the push-piece v be operated, the electric current will pass from the
battery w and circulate through the spring p, contact piece 9', wires, electro-
magnet a, wire t, collar k. contact piece j, bar f, gas pipe h and wire a back to the
battery w; the armature being alternately attracted and not attracted causes the
pawle to turn the ratchet wheel c and open the gas cock d, the spark producer
meanwhile lighting the gas at the burner; the cam m as it revolves will bring
its step or notch n against the spring p which will then move into contact with the
inner contact piece 9 and thereby cut off the current from the burner and switch it
through the conductor y to the next burner and so on to the other burners of the
series which are in this manner successively lighted, the return current to the
battery flowing through the gas pipes of the burners which are all in electrical
connection.
When it is required to extinguish the lights, the push-piece u is operated
whereby the current is caused to flow through the spring o (which, while the gas
cock d has been opening, has been moved by the cam m into contact with the outer
contact piece ¹) contact piece 1, wire s, coil a, wire t, collar k, contact piece j,
bar, gas pipe h and wire back to the battery w. The armature will be operated
in a similar manner to that herein before described until the gas cock d has been
closed when the spring o will have moved into the position shewn in the drawing,
in which position the current will be switched from the apparatus of the first
burner and through the conductor to the other burners which will be successively
extinguished.
It will be obvious that where it is only required to light and extinguish a
single burner, the inner contact pieces 9 and r are not required.
Instead of arranging the armature of the electro-magnet to directly operate the
movable part of the spark producer, we may advantageously employ an independent
magnet for the purpose, the armature of which is arranged in conjunction with the
said movable part of the spark producer.
In some cases we advantageously pivot the armature between two magnet coils
the armature swinging upon a central pivot, the magnets having two-pole pieces
arranged to face the armature.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In electrical apparatus for lighting and extinguishing gas burners, the
employment of two electrical circuits one of which serves for igniting the burner
and the other for extinguishing the same, a cam or snail being arranged upon the
plug of the gas cock in addition to a ratchet wheel, which cam or snail operates
two contact springs in the two electric circuits, substantially in the manner herein-
before described.
2. In electrical apparatus for lighting and extinguishing a number of gas burners
in succession, the combination with a spark producing device such as that herein
described and a ratchet wheel actuated by the vibration of the armature of an
electro-magnet, of a cam or snail adapted to operate two contact springs in two
different electric circuits so as to cut out the lighting and extinguishing apparatus
of one burner and successively place the corresponding apparatuses of the other
burners in the circuit, substantially as herein before described and illustrated in the
accompanying drawing.

page_text: 3. The improved electrical apparatus for lighting and extinguishing gas burners
herein before described and illustrated in the accompanying drawing.
Dated this 16th day of October 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.