Improved Method of and Means for Firing the Charges of Gas Engines.
Year: 1891

page_text: Date of Application, 31st July, 1891
Complete Specification Left, 29th Apr., 1892-Accepted, 4th June, 1892
PROVISIONAL SPECIFICATION.
Improved Method of and Means for Firing the Charges of
Gas Engines.
I, LEON ROBERT MENARD, of 20 Rue du Petit Muse, Paris, France, Electrical
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to a method of firing the charges of gas engines by
electricity.
The employment of this system avoids the use of batteries which in certain
classes of these motors are employed for the same purpose.
In carrying out this invention I employ a combination of three apparatus
placed together in a box or case situated in any suitable position on the motor,
viz. A magneto-electric or dynamo-electric machine, a secondary battery or
accumulator and a Ruhmkorff coil.
The magneto-electric or dynamo-electric machine is actuated by the motor
itself; the secondary battery stores the current generated.
The essential feature of the arrangement consists in the employment of the
secondary battery or accumulator, which becomes charged and remains charged
during the operation of the motor and after it stops, so as to enable such motor to
be started again without having to do so by manual labour, other than the
actuating of a switch serving to cause the current stored and held in reserve in the
accumulator to pass to the coil.
It will be seen that the latter organ or apparatus thus possesses a store of
electricity which is always ready for actuating the motor, and consequently it is
needless to turn the fly-wheel by hand so as to start same, which it would be
requisite to do if only a magneto-electric or dynamo-electric machine and a
Ruhmkorff coil were employed.
However, as it might happen in certain cases that the accumulator became
accidentally discharged, a ratchet wheel may be mounted on the shaft of the dynamo-
electric or magneto-electric machine, but outside the box or case enclosing the
different apparatus described, so as to enable motion to be obtained independently
of the gas engine, in order to cause the magneto machine to turn by hand.
The apparatus is provided with an automatic interrupter which breaks the
connection between the accumulator and the magneto-electric or dynamo-electric
machine as soon as the latter stops.
It will be seen that by this system it is only requisite to utilize a very small
portion of the power of the gas engine, which is transformed into electricity, and
the latter being stored as described is always available for actuating the motor.
Dated this 31st day of July 1801
ALLISON BROS.,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Method of and Means for Firing the Charges of
Gas Engines.
I, LEON ROBERT MENARD, of 20 Rue du Petit Muse, Paris, France, Electrical
Engineer, 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 a method of firing the charges of gas engines by

page_text: The employment of this system avoids the use of batteries which in certain
classes of these motors are employed for the same purpose.
In carrying out this invention I employ a combination of three apparatus placed
together in a box or case situated in any suitable position on the motor, viz. :-A
magneto-electric or dynamo-electric machine, a secondary battery or accumulator
and a Ruhmkorff coil.
The magneto-electric or dynamo-electric machine is actuated by the motor
itself; the secondary battery stores the current generated.
The essential feature of the arrangement consists in the employment of the
secondary battery or accumulator, which becomes charged and remains charged
during the operation of the motor and after it stops, so as to enable such motor to be
started again without having to do so by manual labour, other than the actuating
of a switch serving to cause the current stored and held in reserve in the
accumulator to pass to the coil.
It will be seen that the latter organ or apparatus thus possesses a store of
electricity which is always ready for actuating the motor, and consequently it is
needless to turn the fly-wheel by hand so as to start same, which it would be
requisite to do if only a magneto-electric or dyuamo-electric machine and a
Ruhmkorff coil were employed.
However, as it might happen in certain cases that the accumulator became
accidentally discharged, a ratchet wheel may be mounted on the shaft of the
dynamo-electric or magneto-electric machine, but outside the box or case enclosing
the different apparatus described, so as to enable motion to be obtained
independently of the gas engine, in order to cause the magneto machine to turn by
hand.
The apparatus is provided with an automatic interrupter which breaks the
connection between the accumulator and the magneto-electric or dynamo-electric
machine as soon as the latter stops.
It will be seen that by this system it is only requisite to utilize a very small
portion of the power of the gas engine, which is transformed into electricity, and
the latter being stored as described is always available for actuating the motor.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The improved system for firing the charges of gas engines, characterized by the
combination of a magneto-electric or dynamo-electric machine, an accumulator,
and a Ruhmkorff coil, substantially as and for the purpose specified.
Dol 1
1000
ALLISON BROS.,
Agents for the Applicant.