Improvements in Gas Ignition Apparatus.
Year: 1897

page_text: Date of Application, 16th Aug., 1897
Complete Specification Left, 6th May, 1898 -Accepted, 13th Aug., 1898
PROVISIONAL SPECIFICATION.
Improvements in Gas Ignition Apparatus.
We, ADOLF MARTINI, Analytical Chemist, and FuITZ DEIMEL, Engineer, both of
Leipzigerstrasse 81, Berlin, in the Empire of Germany, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in automatic ignition apparatus for
use in connection with gas burners, and for like purposes.
In carrying our invention into effect we employ a platinum pill or globule
produced from powdered platinum and we cause this pill or globule to be brought
over the gas burner in such a manner as to cause the stream of gas or gas
mixture to impinge upon the globule or pill of platinum powder and thus to
enable the well known property which the platinum possesses to be utilised in
igniting the gas thus impinging upon it. The removal of the pill or globule from
the line of contact of the heat rays produced from the burning jet of gas we effect
automatically and thus overcome the difficulty heretofore existing in connection
with the utilisation of platinum powder for the automatic ignition of hydrogen
gas, coal gas or gaseous mixture.
We mount our pill or globule of powdered platinum upon an arm or cago
which in its normal position when the gas is not burning stands immediately above
the chimney or over the burner; and we carry this arm or cage in one manner from
a bracket in the form of a diaphragm chamber. This diaphragm chamber we
construct and mount in such a manner that when the gas is burning the heat
from the gas causes the diaphragm to expand and thus to force out a bar or
contact piece which in turn forces over the arm or pivoted lever carrying the
globule and causes the arm or lever to travel out of the line of the heat currents
arising from the burner. When the burner is turned off the lever is carried back
by a weight spring or other ordinary contrivance due to the diaphragm con-
tracting when cold. We remove the platinum from above the burner in another
manner by mounting a vane like wheel or fan above the heat current and carry
the platinum from one portion of this vane which we prefer to make somewhat
heavier on the side above the burner. When the heat arises after the burner
has been automatically ignited by the impingement of the gases on the platinum,
the vanes cause the wheel or fan to rotate and thus to carry away the platinum
from contact with the heat rays, to a position where the wheel brings a projection
or catch into connection with a portion of the framework of the fan holder, and
the contact thus made secures the platinum away from the chimney or line of heat
while the gas is burning, but when the light is extinguished the vanes are moved
round by the weighted vane again into position for igniting the gas when next
the burner is turned on.
We do not limit the application of our invention to any particular form of pill
or globule and we vary the manner of carrying the same to and from the gas
burner, to suit the type of burner, the form of chimney or other condition's
connected with the burner or the gas to which our improved automatic ignition
apparatus is to be applied.

page_text: We employ the same arrangement of automatically moving a platinum disc pill
or globule, to burners of gas and other hydrocarbon engines or motors modifying
the carrying devices to suit the burner which is to be ignited.
Doted this 16th dose of t1005
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.
We, ADOLF MARTINI, Analytical Chemist, and FRITZ DEIMEL, Engineer, both of
Leipzigerstrasse 81, Berlin, in the Empire of Germany, do hereby declare the
mature 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 improvements in ignition apparatus for use in connec-
tion with gas burners, whereby the gas upon being turned on is capable of being
automatically ignited.
Our invention consists in the employment of a platinum filament or globule
produced from powdered platinum upon a vane wheel obliquely disposed above the
burner, or chimney of the burner, and so weighted that when the burner is not
in use the globule or filament shall be situated immediately in line with the burner,
or immediately above the chimney, while when the burner is in use, and after the
Hame is ignited, the wheel is set into such a position that the globule or filament
is removed out of line with the burner flame and heated gases arising therefrom.
Our invention further consists of a modification in which a diaphragm is em-
ployed which on expansion causes the movement of a lever at the extremity of
which a platinum globule or filament is secured which in its normal position is
disposed immediately over the burner or chimney of the burner, but upon the
flame being ignited is caused to move out of line therewith by reason of the
expansion of the diaphragm causing the necessary movement of the lever for this
to be effected.
Our invention is illustrated in the accompanying drawings in which Figure 1
illustrates in elevation one manner of carrying our invention into effect, while
Figure 2 shows an elevation of another manner of carrying our invention into
effect, and
Figure 3 is an elevation corresponding to Figure 2, in which the platinum
globule or filament is out of line with the burner and flame.
Figures 4 and 5 are elevations of further modifications of the arrangement
shewn in Fig. 1.
In carrying our invention into effect as illustrated in Figure 1 of the drawings.
in the provision of an apparatus for removing a platinum globule or filament out
of line with the burner and flame we may provide a rim. A mounted upon the
upper peripheral edge of the chimney B which is arranged and supported upon
a gallery arranged upon the burner and mounted in the usual way. This rim A
carries a bracket C, having an arm D whose extremity serves as a support
for the oblique axis E of a vane wheel F, the other lower extremity of the axis
being supported at G upon the edge of the rim A. The vane wheel is made from
sheet metal or other suitable material and has the vanes of such a form that the
upwardly issuing gases resulting from the combustion of the flame cause the
rotation of the vane wheel in the direction indicated by the arrow: a projection f¹

page_text: however being provided upon one of the vanes which engages with the arm D to
preclude the further motion of the wheel.
The platinum globule or filament is secured to one of the vanes such as f which
is so weighted in relation to the other vanes that when the flame is extinguished
the vane.f carrying the platinum globule or filament will be situated immediately
above the burner so as to be ready for igniting the flame immediately the gas is
again turned on.
In carrying our invention into effect according to another modification we pro-
vide an air chamber H closed air tight by means of a diaphragm I. This chamber
may be secured to the chimney B by means of a carrying hook h which engages
with the upper peripheral edge of the chimney B; the lower extremity of the
stem being diverted upwardly to carry the lower extremity of a carrying lever J
by means of a pivot ; which carrying lever has provided at its upper extremity
a platinum filament while at its lower extremity connection is made with the centre
of the diaphragm I by means of a connecting link or projection K.
It will be seen that upon the burner being turned on the flame is ignited by the
platinum filament disposed immediately above the chimney and that the heat of
the flame causes the air in the chamber H to expand forcing out the diaphragm to
a position illustrated in Figure 3 thereby effecting the movement of the carrying.
lever J to the position indicated in this Figure and against the action of a spring L
provided as illustrated, thereby removing the platinum or filament out of line with
the burning flame and issuing gas.
We do not limit the application of our invention to any particular form of
globule or filament nor to the arrangement of the wheel or chamber upon the
chimney or in proximity to the burner as we may modify the means of mounting
the wheel or chamber to suit the type of burner employed. Further we do not
limit our invention to a diaphragm chamber for effecting the movement of the
carrying lever J, as it is obvious that this movement may be produced by other
means whereby movement or expansion results from an increase in temperature.
In carrying our invention into effect according to another design as illustrated
in Figure 4 we may mount the vane wheel F upon a screw threaded surfaco
provided upon a fixed vertical axis E surmounted upon the chimney or above
the burner, so that the upwardly issuing gases may cause the upward movement
of the vane wheel, (determined by a suitable stop d with which the projection f
engages) and the simultaneous movement of the platinum globule for filament
out of line with the flame and gases so that on extinguishing the flame the vane
wheel F will descend, and the platinum globule for filament return in line with
the burner, its position being determined by suitable stops. Further we may
provide a small spring to ensure the return of the platinum globule or filament to
a position above the burner after the flame is extinguished, and such a case is
illustrated in Figure 5 wherein the vane wheel F after ignition rotates until a
projection f engages with one end of a small weighted lever b pivotted on a
fixed axis m and connected to a coiled spring / thereon. The vane wheel F moves
the lever b against the action of the spring until it engages with a stop a, and
the reaction of the spring 7 causes the lever b to push the vane wheel back into
its original position when the flame is extinguished.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. A gas ignition apparatus consisting of a vane wheel so weighted as to
normally lie in such a position that the igniting globule or filament carried thereby
is disposed immediately above the burner, and which upon the flame being ignited
assumes a position in which the globule or filament is removed out of line of the
flame and upwardly issuing gases, while on extinguishing the flame the vane
wheel automatically returns, owing to the obliquity of the axis upon which it is
mounted or by reason of its being mounted upon a screw threaded surface or

page_text: by means of a spring to a position in line with the burner, substantially as
described.
2. A gas ignition apparatus substantially as described reference to Figures 2
and 3 of the accompanying drawings.
3. A gas ignition apparatus substantially as described.
Davet
что сay oт мay 1050.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.