An Improved Fluid Pressure Regulator.
Year: 1891

page_text: Date of Application, 3rd Apr., 1891
Complete Specification Left, 29th Dec., 1891-Accepted, 30th Jan., 1892
PROVISIONAL SPECIFICATION.
An Improved Fluid Pressure Regulator.
I ROBERT SKENE Engineer, Wickham Street Lambeth, London, S.W. do
hereby declare the nature of this invention to be as follows:-
A pressure controlling device, having inlet, and outlet ports, controlled by
valves, the inlet valve preventing rise of pressure, the outlet preventing fall of
pressure.
A device for regulating the amount of gas or vapour to each explosive charge
to gas engines, in combination with the pressure controlling device.
it may be
This pressure controlling device, or governor and antifluctuator (as
called) consists of an outer case in two parts of any convenient form, joined together
with a flexible diaphragm between them, in the underside part and oposite to each
other are placed the inlet and outlet ports, in each port is placed a valve, and both
valves are connected together, and to a bell crank, and the bell crank is connected
to the diaphragm in such a manner, that when this diaphragm rises the inlet valve
closes, and when it falls the outlet valve closes.
To allow the diaphragm to fall quickly, when suction of a charge to gas engine
takes place, the upper side of diaphragm must be open to the atmosphere, by holes
through the upper half of caseing.
On the centre of upper half of caseing is a projection in which a hole is bored,
and in which a spiral spring is placed resting on the diaphragm, pressure on the
spring is regulated by a screw, and the pressure of the spring on the diaphragm
regulates the pressure of the gas or fluid from the governor.
This governor and antifluctuator is specially designed for gas engines; but it is
efficient as a governor where gas is used for lighting only either with or without,
outlet valve.
It is also efficient as an antifluctuator with or without an inlet valve, and may be
used for either purpose seperately or in combination..
When used as a governor or antifluctuator only, the position of the ports may
be varied, say, placed at right-angles to each other, the valve being attached to the
centre of diaphragm, and working direct into port, which may be either the inlet or
outlet; for reducing pressure it will be the inlet, the valve closing on the outside of
port; for preventing fall of pressure it will be the outlet, the valve closing on the
inside of port.
If the valve and diaphragm are too heavy to sufficiently reduce the pressure they
may be partially supported by a spring or counterweight; for the spring on top of
diaphragm a weight or weights may be substituted.
For regulating a definite charge of gas or vapour to gas engines, the same
apparatus is used; but having no valves or spring; where the spiral spring is in the
governor and antifluctuator a rod is screwed up or down to regulate the rise of the
diaphragm, and the distance the diaphragm rises determines the amount of charge,
as the antifluctuator stops the supply of gas as soon as the engine begins to draw in
its charge, consequently it is only. the gas contained in the space traversed by the
diaphragm that can be drawn into the engine.
As this apparatus displaces the usual gas bag it is made larger than the governor
and antifluctuator, to suit engine.

page_text: COMPLETE
SPECIFICATION.
An Improved Fluid Pressure Regulator.
I ROBERT SKENE Engineer Wickham Street Lambeth, London S.W. 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:-
My improved fluid pressure regulator, (or governor and antifluctuator as it may
be called) consists of an outer case in two parts, joined together, having a flexible
diaphragm between them, in the underside part, and opposite to each other, are
placed the inlet, and outlet ports, each port having any suitable valve controlled by
the flexible diaphragm; the inlet valve prevents rise of pressure, and the outlet
valve prevents fall of pressure.
When used as a governor and an antifluctuator combined, both valves may be
connected together, acting as a governor only, the outlet valve is not required, as an
antifluctuator only the inlet valve is not required.
The diaphragm which for low pressure may be made of leather, india rubber,
woodite, or any other suitable flexible material. For high pressure corrugated
metal may be used.
On the top of the diaphragm (which it is better to protect by a disk of tin plate
or other metal) rests a spiral spring by which the pressure of the outward flow of
gas, or fluid is regulated, and the fluctuation stoped; the pressure of the spiral
spring is regulated by a screw screwed into a projection on the top of the outer case,
for the spring a weight may be substituted.
The inlet port of the antifluctuator may be made smaller than the outlet or a
regulating cock provided so that the fluid can flow out faster than it can enter,
which will make it more sensitive.
When used as a governor or as an antifluctuator only, the position of the ports
may be varied, as in Figure 1, e, being the inlet port as a governor, and the outlet
port as an antifluctuator, the valve being made to close on the inside of the case, d,
instead of the outside as shown as a governor.
Fig. 2 is an apparatus which serves as a gas bag to gas engines, and regulates the
charge, in combination with an antifluctuator, when the diaphragm has fallen as far
as the stop nuts will allow it the valve of the antifluctuator will close so that no more
gas will be drawn into the engine, by raising or lowering the nuts, more or less
charge can be drawn into the engine.
And in order that my invention may be the more completely understood reference
is given to the accompanying drawings the same letters refer to the same parts in
each figure.
DESCRIPTION OF DRAWINGS.
Fig. 3 is a section of an antifluctuator, and fluid pressure regulator combined,
d, d, are iron castings screwed together with set screws having a diaphragm, g, between
them, e is the inlet port, and the outlet port,,, are three winged inlet, and outlet
valves, connected together, and act as an antifluctuator, and governor, they are
operated by the bell crank 1, which is connected to the spindle k, the spindle k,
passes through the centre of the diaphragm, g, to which it is fixed, by a nut air
tight; on the top of spindle, k, and on the nut rests a spiral spring, b, the top end
of which is enclosed in a tube, a, screw threaded on its outer side, and screwed into
a projection on casting, d, for the purpose of regulating the pressure on the
diaphragm, g, through the spring, b, the less the pressure on the diaphragm,
is
the less pressure the fluid at its outlet will have but sufficient pressure to prevent
fluctuation must be applied c, c, are holes to allow air in and out so that the
diaphragm, g, can rise and fall quickly; which is necessary as an antifluctuator.
:
I,
If the valve,, in the outlet, f, is taken away it will then act as a fluid pressure

page_text: regulator only. If the valve, j, in the inlet e, is taken away and the valve; in the
outlet,, left in, it will then act as an antifluctuator only.
Fig. 4 is a tube, a, with cap, s, containing shot, p, as a regulating weight, which
may be substituted for the spring, b, and regulating screw, a, in Figs. 1 and 3.
Fig. 2 is a section of a gas bag for gas engines, d, d, being two semihemispherical
castings connected together, and having a diaphragm, g, between them to which is
connected the screw threaded rod, k, on which is the nut, n, and lock nut, o, for
regulating the charge; e and fare inlet and outlet ports, c, c, are holes to allow free
passage of air, so as to permit the rise, and fall, of the diaphragm.
Fig. 1 is a modification of Fig. 3 and is shown as a fluid pressure regulator
only.
Having now particularly described, and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what 1
claim is
1st. The combination in one apparatus of an antifluctuator, and fluid pressure
regulator substantially as herein described, and set forth as in Fig. 3 or any mere
modification thereof.
2nd. A fluid pressure regulator as herein set forth, in Fig. 1, and 3, the construc-
tion of case, d, d, having a projection, and containing, spiral spring and regulating
screw, substantially as described, or any mere modification of the same.
3rd. An antifluctuator, substantially as constructed and herein described and set
forth as in Fig. 3 minus the inlet valve, j, in inlet port, e, or any mere modification
thereof.
4th. The regulating the charge of gas, to gas engines, by apparatus substantially
as described, and herein set forth in Fig. 2, or any mere modification thereof.
In witness whereof the said Robert Skene have hereunto set my hand and
seal this Twenty-ninth day of December in the year of our Lord Eighteen
hundred and ninety-one.
ROBERT SKENE.