Electric Igniter for Gas.
Year: 1899

page_text: Date of Application, 12th Oct., 1899-Accepted, 16th Dec., 1899
Electric Igniter for Gas.
I, HUBERT VON ARNSWALDT, of Südufer, 24 & 25, in the City of Berlin, Ger-
many, Gentleman, 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:-
My invention relates to an electric device for igniting gas by a glow wire;
and the object of my invention is to provide an electric igniter of a simple con-
struction and reliable in action, which can be easily handled and transported and
allows of removing the effective parts when used up and renewing the same.
I attain these objects by the means described in this specification and illus-
trated in the accompanying drawing which is a longitudinal section of the appara-
tus showing the main parts disconnected from each other, but in the position
just before being connected again.
My invention consists of a casing 1, of metal to receive a battery 2, and to
this purpose provided with a detachable bottom 3, of a tube 4 extending up-
wards from the top of the casing and preferably bent downwards at its free end 5
and of the proper igniter comprising two pins 6, 7, which pass through an insu-
lating holder 8, and are connected with each other at their ends by the spiral
glow wire 9 of platinum or other suitable material.
The battery 2 is held in place by the bottom 3, which preferably is screwed.
to the casing as shown, and by a plate 10, fixed in the upper part of the casing,.
one of the electrodes 11, projecting through an opening of plate 10, whilst the
other electrode, say the outer wall of the battery 2, itself is in contact with the
bottom 3, or with the wall 1 of the casing.
Plate 10 is provided with a contact spring 12, carrying a pin 13 of insulating
material as caoutchouc, ivory and the like which extends through a tubular
projection 14 of the cover 15.
Spring 12, is connected by a spiral wire 10 to a tube 17 which passes through
a plug 18 of insulating material inserted in the tubular projection 19 of the cover.
By these means when seizing the casing by the hand and depressing pin 13 by
the forefinger a leading connection will be established between the electrode 11
and the tube 17.
Tube 4 is provided with plugs 20 and 21, of insulating material, plug 20 carry-
ing a pin 22, which closely fits in tube 17 and plug 21 being run through by
two narrow tubes 23, 24. A conductor 25 extends from pin 22 to tube 24 passing
freely through tube 4 or preferably covered with an insulating material and a
spring 26 is connected to tube 23 bearing elastically against the wall of tube 4.
The wire pins 6, 7, fit closely in the tubes 23, 24.
By these means when inserting pin 22 in the tube 17 and pins 6, 7, in the
tubes 23, 24, respectively a leading connection will be established as follows,
from tube 17 through pin 22, conductor 25, tube 24, pin 7, glow wire 9, pin 6,
tube 23, spring 26 the wall of tube 4, cover 15, casing 1 or bottom 3 to the
wall 2 of the battery or as stated, the one of the electrodes. Therefore when

page_text: depressing at the same time pin 13, as heretofore described the circuit is closed
between both electrodes and a current sent through the resistance wire 9 which
thus will be rendered glowing to ignite the gas.
In order to protect wire 9 against injury an open ended cap 27 may be pro-
vided to be sleeved on the end 5 of tube 4.
Although as the best and simplest means, tube 4 has been described as forming
itself the conductor from the battery wall 2 to pin 23 my invention is obviously
not restricted to this feature as a separate second conductor can be made use of,
showing the same or similar arrangement, construction and connections as the
conductor 25, no further illustration by drawing having been deemed necessary.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed I declare that what I claim is:-
1. In an electric igniter, the combination of a casing to receive a battery and
provided with a circuit closing pin to be depressed, a tube extending from the
top of the casing and carrying a resistance or glow wire at its free end, the latter
preferably being bent downwards, means for conducting the current along the
tube from the battery through the resistance wire, and means for closing the cir-
cuit by depressing the said circuit closing pin.
2. A feature of the electric igniter claimed under Claim 1 in which the cas-
ing 1, is provided with a detachable bottom 3 preferably screwed to the casing
and with a plate 10 at the top to keep the battery 2 at its place and in contact
with the bottom or the wall of the casing in order to establish a leading connec-
tion between one of the electrodes and the casing, whilst the other electrode pro-
jects through an opening of the plate 10 and can be brought into contact with
a spring 12 the said spring being connected to a conductor 25.
3. A feature of the electric igniter claimed under Claim 1 or 2 in which one of
the conductors consists of a wire 25 extending through the tube 4 and the other
conductor is formed by the tube 4 itself.
4.A feature of the electric igniter claimed under Claim 1, 2 or 3, in which the
tube is detachably connected to the cover 15 of the casing the connection being
effected on the one hand by a tubular projection 19 of the cover fitting in the
tube 4 and on the other hand by a pin 22 and a sleeve 17 insulated from the tube 4
and from the tubular projection 19 respectively.
5. A feature of the electric igniter claimed under Claim 1, 2, 3 or 4 in which the
free end 5 of the tube 4 is provided with. two sleeves 23, 24, insulated from each
other to receive closely and detachably a pair of pins 6, 7, the said pins being
carried by and passing through a holder 8 and connected at their free ends by
the resistance or glow wire 9.
6. A feature of the electric igniter claimed under Claims 1 to 5 in which an
open ended cap 27 is detachably provided to the free end 5 of the tube 4 in order
to protect the resistance or glow wire 9 against injury.
Dated this 12th day of October 1899.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said H. von Arnswaldt.