Improvements in the Method of and in Means for Starting Gas Engines.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Method of and in Means for Starting Gas Engines.
I, JOHN WILSON, of Victoria Road, Morley, in the County of York, Rag
Merchant, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to facilitate the starting of gas engines.
I fix upon the firing tube at the bend a tap or valve to facilitate the escape
of the dead gas therefrom.
In starting the engine the air and gas valves are opened, drawing in the
charge: the piston is then turned slightly back so that the dead gas in the firing
tube, between the piston and the tap, is expelled through the said valve or tap.
The valve is then shut and the piston pressed back, and the explosion takes
place.
1
.onl .
P 23
1
1000
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.
I, JOHN WILSON, of Victoria Road, Morley, in the County of York, Rag
Merchant, 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:-
The object of my invention is to facilitate the starting of gas engines.
fix upon the bend between the firing tube and the cylinder
a tap (or valve) to provide for the escape of the dead gas.
For this purpose
DESCRIPTION OF DRAWINGS.
Fig. 1 is a side elevation of a cylinder end and firing tube having my invention
applied.
Fig. 2 is an end elevation of Fig. 1, showing also an automatic lever mechanism
for operating the gas and air valve levers at starting.
A is the tap which is fixed between the firing tube B and the cylinder C.
D is the side shaft which carries suitable cams for operating the valve levers.
The suspended gas valve lever E carries a side bar E¹ which is actuated by one
of the said cams on the shaft D, the said lever E being connected to and operating
the gas valve spindle G. The upper end of the pivotted air valve lever F is
027

page_text: also actuated from the cam shaft D, the lower end being connected to and
operating the vertical air valve spindle.
In starting the engine the tap A is opened and the engine turned to the
firing point. The gas and air valves are then opened, and the crank is turned
to its front centre so drawing in a charge. The crank is then turned slightly
back towards its top centre, expelling through the tap A the dead gas contained
in the firing tube between the cylinder and the said tap A. The tap A is then
shut and the engine is pressed firmly back, the explosion taking place and the
engine starting with full compression.
The opening of the gas and air valves for starting is done preferably by
means of a hand-lever H. This lever H turns an auxiliary shaft K carrying
small cranks L and M which operate respectively the gas valve lever E (by
means of its side bar E¹) and the air valve lever F. The said hand-lever H is
held back (whilst the charge is being drawn) by a pivotted catch lever N and
fixed projection P, and is released (so as to automatically close the valves on
the charge being drawn) by a projecting finger R carried by the side shaft D.
The tap or valve A may also be applied in a similar manner to oil or other
explosion engines.
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:
In a gas engine, the employment of the tap (or valve) A to provide for the
escape of the dead gas and so facilitate the starting of the engine, substantially
as shown and described.
eptember 1900.
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds,
Patent Agent for the Applicant.