Improvements in Gas, Petroleum, and other Internal Combustion Engines.
Year: 1896

page_text: Date of Application, 2nd Mar., 1896
Complete Specification Left, 30th Nov., 1896-Accepted, 20th Feb.. 1897
PROVISIONAL SPECIFICATION.
Improvements in Gas, Petroleum, and other Internal Combustion
Engines.
I, WILLIAM HEWSON CROW of 45 Rye Hill in the City and County of
Newcastle-upon-Tyne, Engineer do hereby declare the nature of this invention
to be as follows:-
This invention relates to an apparatus for starting gas, petroleum, or other
internal combustion engines. With the object of dispensing with the laborious &
dangerous practice of rotating the fly wheel by hand to get up sufficient speed to
enable the engine to start, I propose to use compressed air or gas for the purpose.
The air or gas may be forced into a receiver to a desired pressure by means of a
pump worked by the engine, either during its regular working hours or it may be
run after its ordinary work is finished for this purpose, the compressed air or gas
remaining in the receiver ready for starting the engine when required. Or the air
or gas may be forced into the receiver by a hand pump or by a pump worked by
independent power.
The receiver may either be formed in or under the bed
plate of the engine, or it may be placed in any convenient position. A pressure
pipe is led from the receiver to the explosion end of the cylinder, on this pipe is
fixed a cock or valve worked either automatically from the engine or by band.
When the compressed air or gas has been applied to the cylinder & the engine
has got up sufficient speed to enable it to be started in the ordinary way, the
cock or valve is shut & and the engine draws in the explosive vapour in the
ordinary manner.
1000
COMPLETE SPECIFICATION.
Improvements in Gas, Petroleum, and other Internal Combustion
Engines.
1, WILLIAM HEWSON CROW of 45 Rye Hill in the City and County of
Newcastle-upon-Tyne 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 an apparatus for starting gas, petroleum, or other
internal combustion engines in such a manner that the ordinary method of rotating
the fly wheel and crank shaft by hand is unnecessary and thus the danger to the
attendant which would occur through the engine getting a back explosion is got
rid of.
In order that the said invention may be fully understood I shall refer to the
sheet of drawings hereunto annexed, the same letters of reference indicating
corresponding parts throughout all the figures.

page_text: 800
Fig. 2 shews an end elevation and
Fig. 3 a plan of an oil engine with the starting arrangement shewn.
In these figures A is n receiver for containing the compressed air. This
receiver being in the first instance pumped to the required pressure by means
of a hand pump delivering through the pipe B, the gauge C recording the pressure.
When the required pressure is obtained, the engine is ready for starting. For
this purpose the stop cock or valve D which conveys the compressed air to the
explosion chamber E, or to the explosion end of the cylinder, is opened by hand
at the commencement of each explosion stroke of the piston, or the compressed air
may be admitted into the explosion chamber, or to the explosion end of the cylinder
by means of cums F, or other automatic menus, at the commencement of the
explosion stroke of the piston, and exhausted through the passages for the exploded
gases. The compressed air thus admitted will run the engine sufficiently fast to
enable it to take in its charges of explosive gases; the compressal air is then cut off
and the engine runs in the ordinary way.
Previous to the engine finishing its daily running, a force pump G is used for
pumping up the necessary supply of compressed air to enable the engine to be
started the following day, or whenever it may be required; the hand pump it will
thus be seen is only required at the first starting of the engine, the pump driven by
the engine doing the work ever afterwards.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performel 1 declare what I
claim is
1st. The system of filling a receiver with compressed air by a land pump, and
then introducing this compressed air into the explosion chamber, or into the
explosion end of the cylinder at the commencement of the explosion stroke, for the
purpose of getting up sufficient speed to enable the engine to draw in its supply
of explosive gas, and thus enable the engine to be started without pulling at the
fly wheel.
2nd. The method of pumping up the aferesaid receiver at the cul of each
days running, or as may be required, by the engine itself by means of a force
pump, and the storing up of this compressed air until it is required to start the
engine.
3rd. The arrangement of air receiver, so that it can be pumped up either by
hand or engine power, in connection with gas, petroleum, or other internal
-combustion engines.
ليمن
1309