Igniting Apparatus for Gas Motor Engines.
Year: 1887

page_text: Date of Application, 19th Jan., 1887
Complete Left, 7th Oct., 1887
Complete Accepted, 8th Nov., 1887
[Communicated from abroad by GAS-MOTOREN-FABRIK DEUTZ, of Deutz, on the Rhine,
in the German Empire, Manufacturers.]
Igniting Apparatus for Gas Motor Engines.
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane
in the County of Middlesex, Consulting Engineer and Patent Agent, do hereby
declare the nature of this invention to be as follows:-
This invention relates to an improved construction of apparatus for igniting the
charges of those gas motor engines, in which the charge is subject to compression
before ignition.
The apparatus consists of a slide that is pressed against a slide face of the cylinder
by means of a loose cover acted on by springs, and is worked by suitable gearing from
the engine shaft, such slide being provided with ports and passages arranged and
operating as I will proceed to explain with reference to the accompanying drawing,
in which Fig. 1 shews a horizontal section of the apparatus at the moment of igniting
the cylinder charge, Fig. 2 shews an end elevation, Fig. 3 shews a view of the inner
face of the slide, Fig. 3 shews a cross section on line xx Fig. 3, and Fig. 4 shews
the same view as Fig. 1 with the slide at its extreme left hand position.
m is part of the gas motor engine, provided with a slide face and an igniting port a,
the ports and devices for admitting the combustible charge into the cylinder not being
shewn, these being of any suitable known construction. n is the igniting slide,
and o is the slide cover pressed against the slide by springs p.
The slide n bas on its inner face a recessed groove communicating by a small
aperture c with a chamber d having a narrow annular aperture d' opening into one end
of a passage e the other end of which communicates by two opposite side openings el e³
with the outer air when the slide is in the position Fig. 4. Thus as the slide moves from
the position Fig. 4 towards the left, a portion of the compressed combustible charge
will pass from the cylinder through port a channel band opening c into chamber d,
whence it issues through aperture d' into passage e and in escaping through the

page_text: opening e¹ it becomes ignited by the stationary gas flame at f. By means of the
restricted area of the channel 6 and openings c and d the pressure of the gases
becomes considerably reduced on its way from the cylinder to the passage e so that
the gas issues with only slight pressure from the opening d¹. The flame at e¹ will
burn slowly backwards into the passage e and will then continue to burn as an annular
jet from the orifice d'. The striking back of the flame into the passage e is facilitated
by the opposito positions of the openings e¹e. As the slide moves to the left the
flame in e will continue to be fed from the cylinder through the channel b, and at a certain
point of this motion the openings e¹ e will be covered by the cylinder and slide cover,
so that e will become a closed space.
In order to allow of the escape of the products of combustion from the flame at d¹
under these circumstances, a channel in the slide establishes a communication
between e and a passage k leading into a chamber that communicates with the outer
air by a cock g. The flame thus continues to burn in e until the slide arrives at the
position Fig. 1 in which the communication between and the chamber d is just
about to close, and the igniting port is just about to be put in communication with
the flame at d¹ by the passage h so as to firo the cylinder charge.
DL:
10LL
1007

page_text: I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane,
in the County of Middlesex, Consulting Engineer and Patent Agent, 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 an improved construction of apparatus for igniting the
charges of those gas motor engines in which the charge is subject to compression
before ignition.
The apparatus consists of a slide that is pressed against a slide face of the cylinder
by means of a loose cover acted on by springs and is worked by suitable gearing from
the engine shaft, such slide being provided with ports and passages arranged and
operating as I will proceed to explain with reference to the drawing accompanying
my provisional specification filed January 19th 1887 in which Fig. 1 shews a
horizontal section of the apparatus at the moment of igniting the cylinder charge;
Fig. 2 shews an end elevation, Fig. 3 shews a view of the inner face of the slide,
Fig. 3 shews a cross section on line. Fig. 3, and Fig. 4 shews the same view as
Fig. 1 with the slide at its extreme left hand position.
m is part of the gas motor engine provided with a slide face and an igniting port a,
the ports and devices for admitting the combustible charge into the cylinder not
being shewn, these being of any suitable known construction. n is the igniting slide
and o is the slide cover pressed against the slide by springs p.
The slide n has on its inner face a recessed groove & communicating by a small
aperture c with a chamber d having a narrow annular aperture opening into one
end of a passage e the other end of which communicates by two opposite side
openings ee with the outer air when the slide is in the position Fig. 4.
Thus, as the slide moves from the position Fig. 4 towards the left, a portion of the
compressed combustible charge will pass from the cylinder through port a channel b
and opening into chamber d whence it issues through aperture d into passage e
and in escaping through the opening e¹ it becomes ignited by the stationary gas
flame at f. By means of the restricted area of the channel band openings c and d¹
the pressure of the gases becomes considerably reduced on its way from the cylinder
to the passage e so that the gas issues with only slight pressure from the opening d¹.
The flame at e will burn slowly backwards into the passage e and will then continue
to burn as an annular jet from the orifice d'. The striking back of the flame into
passage e is facilitated by the opposite positions of the openings el e². As the
slide moves to the left the flame ine will continue to be fed from the cylinder through
the channel b, and at a certain point of this motion the openings e¹ e² will be covered
by the cylinder and slide cover, so that e will become a closed space.
the
In order to allow of the escape of the products of combustion from the flame at d'
under these circumstances, a channel in the slide establishes a communication
between e and a passage & leading to a chamber that communicates with the outer

page_text: air by a cock g. The flame thus continues to burn in e until the slide arrives at the
position Fig. 1, in which the communication between a and the chamber d is just
about to close, and the igniting port is just about to be put in communication with
the flame at d by the passage so as to fire the cylinder charge.
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. The use of igniting apparatus for gas motor engines consisting of a slide n
having a channel b, communicating by a small hole c with a chamber d that in its
turn communicates by an annular opening d' with a passage e having opposite lateral
openings ee, the passage e being made to communicate with the firing port of the
engine by a passage h, substantially as herein described.
2. In combination with the passage e, e, e² of the igniting slide n, the chamber
communicating with the outer air by a regulating cock 7 and with the said passago
by an opening substantially as herein described.
Dated this 7th day of October 1887
ABEL & IMRAY,
Agents for the Applicant.