Motive Power Engines.
Year: 1885

page_text: [Communicated from abroad by Edouard Delamare-Deboutteville and Leon
Malandin, both of Fontaine-le-Bourg, Seine Inférieure, in the Republic of
France, Manufacturers.]
Motive Power Engines.
I, JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention which has been com-
municated to me from abroad by Edouard Delamare-Deboutteville and Léon
Malandin both of Fontaine-le-Bourg, Seine Inferieure in the Republic of France,
Manufacturers, to be as follows:-
This Invention relates to an improved regulator or governor for regulating the
speed of gas or other motive power Engines by controlling the supply of gas or
motive fluid to such gas or motive power Engines. The governor or regulator
bereinafter described is much more sensitive than the ball governors ordinarily
employed and therefore of especial value for Gas Engines. It possesses sufficient
sensitiveness to enable it to stop the supply of gas or motive fluid on the slightest
increase of speed in the motor-and has the important advantage of great simplicity
and facility of application.
•
The apparatus hereinafter described is worked by compressed air but it may
also be worked by a vacuum or exhausting action by suitably modifying the
construction.
. An apparatus constructed according to this invention is provided with an air
compressing cylinder communicating with a cylinder or chamber for the com-
pressed air, and it also communicates with a second cylinder which for clearness of
description will be hereafter described as cylinder No. 2. The compressing cylinder
is fitted with an air tight piston, and piston rod or plunger and with an outlet
orifice for the escape of the air, the said orifice being controlled by a taper plug
and screw or other device capable of delicate adjustinent. The piston and piston
rod or plunger of this compressing cylinder is attached to some moving part of the
Engine, by preference the slide valve rod, and the compressing cylinder is attached
to some stationary part of the engine as for example the cylinder cover or the
piston and piston rod or plunger is fixed to some stationary part of the Engine, as

page_text: for example, the slide valve cover and the compressing cylinder is attached to some
convenient moving part of the engine in preference the slide valve prolonged or
slide valve rod. The cylinder No. 2 is fitted with a plunger or piston which can
move outwards to a certain extent, but this outward movement from its normal
position is resisted by a spring, weight or the weight of piston itself, and therefore
the air in the chamber of the compressing cylinder must be compressed sufficiently
to overcome this resistance before this compressed air can move the piston or
plunger of cylinder No. 2 outwards. The spindle or stem of the valve admitting
the gas or motive fluid to the engine, and the piston or plunger of cylinder No. 2
are so arranged that when the piston or plunger of cylinder No. 2 is in its normal
position the tappet is made to move directly or indirectly the spindle or stem of
the gas or motive fluid valve and so admitting gas or motive fluid to the engine,
but when the piston or plunger of cylinder No. 2 is moved outwards by the com-
pressed air in the compressing cylinder chamber, the tappet passes by the stem or
spindle of the gas or motive fluid admission valve and this gas or motive fluid
admission valve remains closed and no admission of gas or motive fluid is made to
the Engine. The tappet or part acting on the valve can have its outer end made
of such a form, for example that if an inclined plane, that before the outward move-
ment of the plunger or piston of cylinder No. 2 is sufficient to cause it to pass by
the spindle or or stem of the gas or motive fluid admission valve and prevent the
admission of gas or motive fluid to the Engine, it may gradually retard the opening
of the gas or motive fluid admission valve up to the point of passing by the stem
or spindle and not opening the admission valve at all.
The speed of the Engine is thus controlled by adjusting the outlet orifice for the
escape of air from the aforesaid compressing cylinder in such a manner that when
the engine is working at the normal speed the piston in the cylinder No. 2 remains
stationary being in equilibrium between the spring or weight on one side and the
pressure of the air on the other. Under these conditions the valve is opened and
gas is admitted as before described regularly and as required but directly the speed
of the Engine increases the compressed air continuing to escape at the same rate
whilst the motion of the piston of the compression cylinder is accelerated the
pressure in the compressed air cylinder increases and the piston of cylinder No. 2
moving outwards the tappet passes by the spindle or stem of the gas admission
valve without moving it and the valve remaining closed no gas is admitted to the
working cylinder until the Engine returns to its normal speed. By opening more
or less the orifice for the escape of the air in the compression cylinder the gas or
motive power Engine can be worked with regularity at varying speeds an
important advantage over the ordinary regulators or governors.
It is evident that. by suitably modifying the structural arrangements this
governor may be applied to steam or other engines and enables the ball governor
ordinarily employed to be dispensed with and that it may be arranged to work
with a vacuum in place of compressed air.
J. HENRY JOHNSON,
47, Lincoln's Inn Fields, London, W.C. 4

page_text: Improvements in Governors or Regulators for Gas and other
Motive Power Engines.
I, JOHN HENRY JOHNSON of 47 Lincolns Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this Invention which has been commu-
nicated to me from abroad by Edouard Delamare Deboutteville and Leon Malandin
both of Fontaine le Bourg Seine Inferieure in the Republic of France, Manufacturers
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 improved regulator or Governor for regulating the
speed of gas or other motive power engines by controlling the supply of gas or
motive fluid to such gas or motive power engines. The governor or regulator
hereinafter described is much more sensitive than the ball governors ordinarily
employed and therefore of special value for gas engines. It possesses sufficient
sensitiveness to enable it to stop the supply of gas or motive fluid on the slightest
increase of speed in the motor, and has the important advantage of great simplicity
and facility of application.
The apparatus hereinafter described with reference to the drawing is worked by
compressed air but it may also be worked by a vacuum or exhausting action by
Buitably modifying the construction.
An apparatus constructed according to this Invention is provided with an air
compressing cylinder communicating with a cylinder or chamber for the compressed
air, and it also communicates with a second cylinder which for clearness of descrip-
tion will be hereafter described as cylinder No. 2. The compressing cylinder is
fitted with an air tight piston and piston rod or plunger and with an outlet orifice
for the escape of the air, the said orifice being controlled by a taper plug and screw
or other device capable of delicate adjustment. The piston and piston rod or
plunger of this compressing cylinder is attached to some moving part of the engine
by preference the slide valve rod, and the compressing cylinder is attached to some
stationary part of the engine as for example the cylinder cover or the piston and
piston rod or plunger is fixed to some stationary part of the engine as for example
the slide valve cover and the compressing cylinder is attached to some convenient
moving part of the engine in preference the slide valve prolonged or slide valve
rod. The cylinder No. 2 is fitted with a plunger or piston which can move outwards
to a certain extent, but this outward movement from its normal position is resisted
by a spring, weight or the weight of piston itself and therefore the air in the
chamber of the compressing cylinder must be compressed sufficiently to overcome
this resistance before this compressed air can move the piston or plunger of
cylinder No. 2 outwards.
The spindle or stem of the valve admitting the gas or motive fluid to the engine
and the piston or plunger of cylinder No. 2 are so arranged that when the piston
or plunger of cylinder No. 2 is in its normal position the tappet is made to move
directly or indirectly the spindle or stem of the gas or motive fluid valve and
so admitting gas or motive fluid to the engine but when the piston or plunger
of cylinder No. 2 is moved outwards by the compressed air in the compressing

page_text: cylinder, the tappet passes by the stem or spindle of the gas or motive fluid
admission valve and this gas or motive fluid admission valve remains closed and
no admission of gas or motive fluid is made to the engine. The tappet or part
acting on the valve can have its outer end made of such a form, for example that
of an inclined plane, that before the outward movement of the plunger or piston of
cylinder No. 2 is sufficient to cause it to pass by the spindle or stem of the gas or
motive fluid admission valve and prevent the admission of gas or motive fluid to
the engine it may gradually retard the opening of the gas or motive fluid admission
valve up to the point of passing by the stem or spindle and not opening the
admission valve at all.
The speed of the engine is controlled by adjusting the outlet orifice for the escape
of air from the aforesaid compressing cylinder in such a manner that when the
engine is working at the normal speed the piston in the cylinder No. 2 remains
stationary being in equilibrium between the spring or weight on one side and the
pressure of the air on the other.
By opening more or less the orifice for the escape of air from the compression
cylinder the gas or motive power engine can be worked with regularity at
varying speeds this being an important advantage over the ordinary regulators or
governors.
It is evident that by suitably modifying the structural arrangements this
Governor may be applied to steam or other engines and enables the ball governor
ordinarily employed to be dispensed with and that it may be arranged to work
with a vacuum in place of compressed air.
And in order that the said invention may be fully understood I shall now
proceed more particularly to describe the same and for that purpose shall refer to
the annexed drawing representing an example of governor or regulator constructed
according to this invention parts of the said apparatus being drawn in section so
as to show the internal arrangements.
This governor or regulator is provided with an air compressing cylinder A in
which works an air compressing piston B provided with a valve H and receiving
the requisite reciprocating motion from a moving part of the engine as herein before
described. At one extremity of the cylinder A there is an orifice G communicating
with a passage for the escape of air controlled by a taper plug F capable of nice
adjustment by means of a screw E. The cylinder A is in direct communication
with a cylinder D corresponding with the cylinder No. 2 herein before referred to
and this cylinder D contains a piston C retained in position by a pin R and pressed
inwards by a spring S. To this piston is attached a boss or guide J in which slides
a rod K one extremity of which is normally in a position to be acted upon by a
tappet L fixed in a holder M attached to an arm N connected at O with the slide
or some other suitable reciprocating part of the engine. The other extremity of
the rod K bears against the end of the stem T of the gas admission valve U of the
engine the said stem being guided in a boss P.
When the engine is working the piston B compresses air in the cylinders A
and D to an extent which can be accurately controlled by adjusting the area of the
air outlet orifice by means of the plug F. The resistance of the spring S is such that
so long as the engine is running at its normal speed the piston C is in equilibrium
between the pressure of the spring and that of the compressed air, and the rod K
is retained in the position indicated in the drawing and consequently every stroke
of the tappet L is transmitted by this rod to the gas inlet valve U so that this
valve is opened at every stroke. In case the speed of the engine increases the
piston B compresses the air more rapidly and the pressure of the air immediately
overcomes the resistance of the spring S and forces out the piston C so as to move
the rod K out of the path of the tappet L. The next stroke of this tappet is con-
sequently, not transmitted to the gas inlet valve U and this valve remains closed
thus cutting off the supply of gas to the engine as herein before described until the
pressure of the air behind the piston C is so reduced by the decreasing speed of
the engine as to admit of this piston returning to its normal position.

page_text: Having now described and particularly ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
1st. A governor or regulator regulating the speed of gas or other motive power
engines by the intervention of air or its equivalent compressed or rarefied by the
action or movement of the engine and acting on devices connected with the valve
controlling the supply of motive fluid to the engine substantially as hereinbefore
described.
2nd. In a governor or regulator for gas and other motive power engines the
combination of an air compressing piston moving synchronously with the engine,
means for regulating the degree of compression of the air and a loaded piston acted
on by the compressed air and controlling the action of the mechanism operating
the valve admitting the motive fluid to the engine substantially as hereinbefore
described and illustrated in the accompanying drawings.
3rd. The arrangements and combinations of parts constituting an improved
governor or regulator for gas and other motive power engines the said governor or
regulator being constructed and operating substantially as herein before described
with reference to the accompanying drawings.