Improvements in Ignition Gear for Explosion Engines.
Year: 1898

page_text: Improvements in Ignition Gear for Explosion Engines.
I, ALFRED EDWARD CREESE, of 58, Myddelton Street, Rosebery Avenue, in the
County of London, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in ignition gear for explosion engines
of the kind wherein light oils and spirits are employed.
According to the invention I provide a platinum spiral arranged in the combus-
tion chamber of the engine and adapted to be maintained at the requisite temper-
ature by the successive explosions which take place in the cylinder, the first
few explosions being effected by suitable means such for example as an electric
spark obtained from any suitable source of electricity, an ignition tube or by
warming the engine cylinder.
A motor fitted with this gear is started with great facility as it is only necessary
to effect a few explosions, (for example by hand) which heat the platinum spiral,
the heat developed by the succeeding explosions keeping it at the necessary
temperature for exploding the charges of combustible vapour.
Dated the 25th day of October 1898
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
Improvements in Ignition Gear for Explosion Engines.
I, ALFRED EDWARD CREESE, of 58, Myddelton Street, Rosebery Avenue, in the
County of London, 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 improvements in ignition gear for explosion engines
of the kind wherein light oils and spirits are employed.
According to the invention I provide a platinum spiral arranged in the combus-
tion chamber of the engine and adapted to be maintained at the requisite temper-
ature by the successive explosions which take place in the cylinder, the first
few explosions being effected by suitable means such for example as an electric
spark obtained from any suitable source of electricity, an ignition tube or by
warming the engine cylinder.
A motor fitted with this gear is started with great facility as it is only necessary
to effect a few explosions, (for example by hand) which heat the platinum spiral,
[Price Q7

page_text: the heat developed by the succeeding explosions keeping it at the necessary
temperature for exploding the charges of combustible vapour.
In the accompanying drawing,—
Figure 1 is a sectional elevation of ignition gear made according to the inven-
tion, the said gear being shewn applied to the cylinder of an explosion engine:
Figure 2 is an underside view of the gear.
A is the engine cylinder and a is the platinum spiral, the said platinum spiral
being fitted at its two ends to two pins b of suitable material, such as nickel,
which project from the head c¹ of a metal rod e extending through a sleeve or
bush of porcelain or other suitable insulating material; this insulating sleeve d
is held in a metal cylinder e screwed into an internally screw-threaded hole in
the cylinder cover. The rod extends right through the cylinder e and the
projecting portion is formed with a screw-thread for receiving nuts f, f for holding
the parts together and for serving as a terminal screw for the attachment of a wire fi
forming part of an electric circuit. The other terminal is formed by the wire g
(as part of the cylinder A) which extends from the inner end of the metal
cylinder e to within a short distance of the head c¹. 3 is a piece of insulating
and packing material.
To start a motor fitted with gear of this kind, current is supplied through the
wire f so as to explode the mixture in the combustion chamber; successive
explosions gradually heat the coil a to, and maintain it at, the necessary tempera-
ture for exploding the charges so that the current can be interrupted.
Instead of effecting the initial explosion of the combustible mixture by
electric sparking I can employ an ignition tube for that purpose or I can warm
the engine cylinder.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
The manufacture and use of ignition gear for explosion engines constructed
substantially as hereinbefore described and illustrated in the accompanying
drawing.
Dated the 25th day of July 1899
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.