Improvements in Gas, Oil, and similar Motor Engines.
Year: 1892

page_text: Date of Application, 17th Nov., 1892
Complete Specification Left, 17th Aug., 1893-Accepted, 30th Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Gas, Oil, and similar Motor Engines.
We, HENRY HERBERT ANDREW, Director of J. E. H. Andrew and Company
Limited, of Reddish, near Stockport, in the County of Chester, Engineers, and
ALFRED ROWE BELLAMY of the same place, Manager, do hereby declare the
nature of this invention to be as follows:-
:―
Our invention relates to improvements in gas oil and similar motor engines,
particularly to an improved means for firing such engines, either at starting or
subsequently, and one object of our invention is to enable the ignition tube to be
removed and replaced by another tube without necessarily displacing the valves or
connections with the ignition tube.
In carrying our invention into effect the timing or ignition valve is arranged to
open at the proper time to allow the explosive fluid mixture to flow under the
valve into a short tube inclosed in the heated ignition tube; the explosive fluid
mixture flows through the short tube and then between the two tubes and passes
into a small chamber the exit from which into the atmosphere is controlled by a
mushroom or other snifting valve; this valve is opened at or about the same time
as the ignition valve by means of a washer or projection carried by the spindle of
the ignition valve acting upon a tumbler catch pivoted to the end of the snifting
valve spindle; but any other disengaging device may be employed which will allow
the snifting valve to be closed automatically at the proper moment by fluid pressure
from the inside or by a spring or other means.
When the ignition or timing valve is again opened the washer or projection on
its spindle will open the snifting valve, and allow some of the fluid mixture or
products of combustion to escape through it into the atmosphere.
In certain cases it may be found advantageous to allow the snifting valve to
remain constantly operative in combination with the ordinary ignition or timing
valve as described; but when this is not the case one of the connections for opening
the snifting valve can be removed after the engine has been properly started
whereby the said valve remains closed and inoperative.
Dated this 16th day of November 1892
H. B. BARLOW & GILLETT,
Agents for Applicants.
COMPLETE SPECIFICATION.
Improvements in Gas, Oil, and similar Motor Engines.
We, HENRY HErbert Andrew, Director of J. E. H. Andrew and Company
Limited, of Reddish, near Stockport, in the County of Chester, Engineers, and
ALFRED ROWE BELLAMY, of the same place, Manager, 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 :-
Our invention relates to improvements in gas oil and similar motor engines,
particularly to an improved means for firing such engines, either at starting or
subsequently, and one object of our invention is to enable the ignition tube to be
removed and replaced by another tube without necessarily displacing the valves or
connections with the ignition tube.
Referring to the accompanying drawing, a designates the power cylinder of the
engine, 6 the explosive fluid mixture admission valve, e the exhaust valve and d the

page_text: timing or ignition valve, all of which valves are operated by levers and cams from
the side shaft e in the usual manner.
Within the chimney is the burner 9 and the ignition tube h below which is a
short tube in communication with. a small chamber j the exit from which into the
atmosphere is controlled by a snifting valve k. This valve k, which may be a
mushroom valve as shown or any other suitable type of valve, is opened at or about
the same time as the ignition valve d by means of a washer or projection / carried
by the spindle of the ignition valve d which comes in contact with a tumbler catch m
pivoted to the end of the spindle of the snifting valve k; the edge of the tumbler
catch m is bevelled and a kicking plate n is fixed to the frame so that when the
spindle of the valve has been moved a certain distance the catch m is tilted by
the plate n and the valve k is left free to be closed.
When the timing or ignition valve d is opened, the explosive fluid mixture flows
through the short tube i, ignition tube and chamber j and as the snifting valve k
is also opened at this time by means of the washer and tumbler catch mas
described some of the gases escape through it into the atmosphere until the
explosive fluid mixture becomes ignited and the consequent increase of pressure
caused by the expansion of gases closes the snifting valve k.
When the ignition valve d is again opened the washer or projection 1 on its
spindle will open the snifting valve k, and allow some of the fluid mixture or
products of combustion to escape through it into the atmosphere.
In certain cases it may be found advantageous to allow the snifting valve k to
remain constantly operative in combination with the ordinary timing or ignition
valve d as described; when this is not the case the tumbler catch m can be turned
back, into the position indicated by dotted lines, after the engine has been properly
started whereby the said valve remains closed and inoperative.
Instead of the washer or projection and the pivoted tumbler catch m any other
suitable disengaging device may be employed which will allow the snifting valve k
to be closed automatically at the proper moment by fluid pressure from the inside
or by a spring or other means.
By the arrangement shown and described the ignition tube h can be readily
removed and replaced by another tube without displacing any of the valves and
connections.
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 :-
In a gas or similar motor engine-
1. The combination with the timing or ignition valve, of a snifting valve arranged
to be opened at or about the same time as the ignition valve for the purpose of
allowing the contents of the ignition tube to escape into the atmosphere, the
snifting valve being opened by means of a disengaging device which allows the
said valve to be closed automatically at the proper moment substantially as and for
the purposes herein set forth.
2. The combination and general arrangement of -parts-embodying our improve-
ments substantially as herein set forth.
Dated this 16th day of August 1893.
H. B. BARLOW & GILLETT,
17, St. Ann's Square, Manchester, Agents for Applicants.