Mixture in Gas Motor Engines
Year: 1885

page_text: Mixture in Gas Motor Engines.
GEORGE WARSOP of No 76 Royal Terrace, Queen's Walk, Nottingham,
Mechanical Engineer, and HENRY WALKER HILL of 51 Hampden Street,
Nottingham, Mechanical Engineer, do hereby declare the nature of their inven-
tion for "AN IMPROVED APPARATUS FOR IGNITING THE GAS OR EXPLOSIVE
MIXTURE IN GAS MOTOR ENGINES" to be as follows:-
In the slide or piston-distributing valves of gas motor engines, we form a
suitable port; which is alternately opened to, and shut off from a corresponding port
in the cover or cylinder retaining the slide valve; and, in the latter port we cause
an ordinary gas jet, or outside light to burn.
Communicating with the port in the slide valvo, we drill a small hole,-called
hereafter the "burner hole "-opening into the space containing the explosive
mixture; and fit the outer end of the hole with a screw, or other means, for
regulating the size of the hole, and the discharge of gas therefrom; or, we fit into
this hole, as an alternative plan, a small valve opened by suitable means.
Communicating also with the port in the slide valve, we fit a small valve-called
hereafter the igniting valve-opening inwards to the explosive mixture. This
valvo is provided, outside the slide valve, with a spindle, collar, & springs for
closing the valve automatically, after it has been opened (in the course of its travel
with the slide valve) by coming in contact with a fixed stop attached to the
cylinder, or any convenient part of the engine.
The mode of operation is as follows:-
On the return stroke of the engine during exhaust, and while the space in the
slide valve is receiving the explosive mixture, a supply of this mixture passes out
through the burner-hole into the lighting port in the slide valve; and is ignited by
the outside light; the port in the valve being at this time open to the atmosphere,
and to the corresponding port in the slide valve cover or casing.
The gas issuing from the burner-hole, remains burning in the port where it
issues from the hole; and is carried forward so burning, until, and after the
lighting port in the slide valve has been cut off from the atmosphere, and closed to
the corresponding port in the slide valve cover or casing.
At the moment when ignition of the main charge is required in the cylinder, the
spindle of the igniting valve is carried forward with the slide valve, and comes in

page_text: contact with the fixed stop before mentioned; opens the valve, and by that means
makes communication between the slide valve port, and the space containing the
main charge of explosive mixture; a portion of which comes gently on to the light.
burning at the burner-hole, and thereby thoroughly ignites the whole of the charge
required for working the engine.
On the return of the slide valve, the spindle is carried away from the stop,
allowing the ignition valve to be closed by the spring; the lighting port again
comes opposite the port in the valve cover or casing, and the lighting port being
thereby opened to the atmosphere, allows the products of combustion to exhaust
clear away, rendering the port ready to receive another charge for the succeeding 1
stroke of the engine.

page_text: Mixture in Gas Motor Engines.
We GEORGE WARSOP and HENRY WALKER HILL both of Deering Street Iron
Works, Nottingham, Mechanical Engineers, do hereby declare the nature of our
said 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 certain detail improvements in apparatus connected
with igniting or firing the gas or explosive mixture in gas motor engines and will
be fully understood by the following description and the accompanying drawings
in which at Figure 1 we show a longitudinal section of that part of a gas engine
where the valve and lighting apparatus are arranged, Figure 2 being a horizontal
section showing more particularly the passages through which a portion of the
charge can be brought within range of an outside flame for conveying the light to
the main body of the mixture.
Figure 3 is a transverse section through the, ports or passages connecting the
inside flame chamber with the outside flame Figure 4 is an end elevation, and
Figure 5 a partial side view.
In the slide or piston distributing valves B we form a port E which is alternately
opened to and shut off from a corresponding port F in the cover or cylinder A
containing the slide valve B and in the latter port F we cause an ordinary gas jet
or outside light to burn. Communicating with the port E in the slide valve B wo
drill a small hole H-called hereafter the burner hole H-opening into the space C
containing the explosive mixture and fit the outer end of the hole H with a
screw D for regulating the size of the hole H and the discharge of gas therefrom or
we fit into this hole, as an alternative plan, a small valve opened by suitablo
means.
Communicating also with the port E in the slide valve B we fit a small valve I
-called hereafter the igniting valve-opening inwards to the explosive mixture.
This valve I is provided outside the slide valve B with a spindle J, collar and spring
for closing the valve I automatically after it has been opened (in the course of its
travel with the slide valve B) by coming in contact with a fixed stop K attached to
the cylinder or to any convenient part of the engine.
The mode of operation is as follows:-
On the return stroke of the power piston N during exhaust through O and while
the space C in the slide valve B is receiving the explosive mixture, a supply of this
mixture passes out through the burner hole H into the lighting port E in the slide
valve B and is ignited by the outside light L, the port E in the valve being at this
time open to the atmosphere and to the corresponding port F in the slide valve
cover or casing A
The gas issuing from the burner hole H remains burning in the port E where it
issues from the hole and is carried forward so burning until and after the lighting
port E in the slide valve B has been cut off from the atmosphere and closed to the
corresponding port F in the slide valve cover or casing A.

page_text: At the moment when ignition of the main charge is required in the cylinder M
the spindle J of the igniting valve I is carried forward with the slide valve B and
comes in contact with the fixed stop K before mentioned, opens the valve I and by
that means makes communication between the slide valve port E and the space C
containing the main charge of explosive mixture, a portion of which comes gently
on to the light burning at the burner hole H and thereby thoroughly ignites the
whole of the charge required for working the engine.
On the return of the slide valve B the spindle J is carried away from tho
stop K allowing the ignition valve I to be closed by the spring; the lighting port E
again comes opposite the port F in the valve cover or casing A and the lighting
port E being thereby opened to the atmosphero allows the products of combustion
to exhaust clear away rendering the port E ready to receive another charge for the
succeeding stroke.
R is the water casing surrounding the lighting chamber, the slide valve casing
and the working cylinder and is common to all.
O is the exhaust port.
P is the admission port from C to M.
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. The particular arrangement of the apparatus shown at Figures 1 and 2 of the
annexed drawings and its adaptation to a gas motor engine whereby the explosivo
charge can be ignited from an outside flame as herein before described.
2. The internal means of operating the ignition valvo of a gas motor engine tho
whole of the ignition apparatus and slide valve being enclosed as set forth and
substantially as shown in the annexed drawings.
TL AL 1
2000