Improvements in Regulating Apparatus for Gas Motor Engines.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Regulating Apparatus for Gas Motor Engines.
I, GEORGE GREENWAY HUNT, of Brittania Works, Wharf Road in the County.
of London, Managing Director of Grover & Company Limited, Engineers, do
hereby declare the nature of this invention to be as follows:-
This invention relates to means of regulating the speed of a gas motor engine by
applying a centrifugal governor to determine the opening of the gas supply valve.
For this purpose one forked arm of a lever supported by an adjustable spring is
pressed down by a collar on the spindle of a centrifugal governor which is
depressed as the balls fly outwards. The other arm of the lever is also forked and
arranged to come in front of and form a stop to a collar on the stem of the gas
supply valve, so that when the speed is excessive the valve is prevented from
opening or only allowed to open a little when the piston is making its suction stroke,
the supply of gas being thus stopped or lessened until the engine returns to its
normal speed.
Both the gas and the air supply valves are provided with adjustable springs
tending to close them in opposition to in-draught caused by the suction stroke of
the piston.
Dated this 28th day of July 1896
ABEL & IMRAY,
Agents for the Applicant.
ICATION.
Improvements in Regulating Apparatus for Gas Motor Engines.
J, GEORGE GREENWAY HUNT, of Brittania Works, Wharf Road in the County
of London, Managing Director of Grover & Company Limited, Engineers, 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 means of regulating the speed of a gas motor engine by
applying a centrifugal governor to determine the opening of the gas supply valve,
as I shall describe referring to the accompanying drawings. Fig. 1 is a side view,
Fig. 2 is a plan partly sectional and Fig. 3 is a part end view of regulating
apparatus according to my invention. Fig. 4 is a side view and Fig. 5 is a part
sectional plan of a modification.
Referring to Figs. 1, 2 and 3, one forked arm A of a lever supported by an
adjustable spring B is pressed down by a collar C on the spindle of a centrifugal
governor D which collar is depressed as the governor balls fly outwards. The other
arm E of the lever is also forked and arranged to come in front of and form a stop
to a collar F on the stem of the gas supply valve G, so that, when the speed is
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page_text: excessive, the valve is prevented from opening or only allowed to open a little when
the piston is making its suction stroke, the supply of gas being thus stopped or
lessened until the engine returns to its normal speed.
Both the gas and the air supply valves are provided with adjustable springs
tending to close them in opposition to in-draught caused by the suction stroke of
the of the piston.
As shewn in Figs. 4 and 5, the governor D is on a horizontal spindle, its sliding
collar being connected by links H to one arm K of a lever, the other arm L of
which has a fork engaged between two collars on a rod M which passes through a
stuffing box into the valve box containing the gas supply valve G; as the governor
balls fly more or less outwards the rod M is thrust more or less into the valve box
thus lessening or entirely stopping the opening of the valve G.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a gas motor engine, the combination of centrifugal governor, lever and
collar on stem of gas supply valve arranged and operating substantially as described
with reference to Figs. 1, 2 and 3.
2. The modified arrangement of governor lever and stop rod with collars,
substantially as described with reference to Figs. 4 and 5.
ABEL & IMRAY,
Agents for the Applicant.