Improvements in and relating to Apparatus for Governing or Regulating the Pressure or Flow of Illuminating Gas or other Fluids.
Year: 1892

page_text: Date of Application, 15th Jan., 1892
Complete Specification Left, 15th Oct., 1892-Accepted, 19th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Apparatus for Governing or
Regulating the Pressure or Flow of Illuminating Gas or other
Fluids.
We, ALEXANDER MORTON STRATHERN, and ALEXANDER GEORGE
STRATHERN, both of 118 Bromiclaw, Glasgow, Lanarkshire, Engineers, do hereby
declare the nature of our invention to be as follows:-
:-
This invention has reference to and comprises improvements in the construction
or arrangement and combination of the parts of valves and valve fittings and is
susceptible of considerable modification for governing or regulating the pressure or
rate of flow of fluids such as illuminating gas in passing from the gas holders to
the delivery mains, or from stations or districts to street mains or pipes.
or
In applying these improvements to gas governors, the usual outline construction
of vessel is used, having inlet and outlet orifices and a separating partition
partitions between them, so that the gas can only pass through the valve or valve
connections, and having the usual mercury or glycerine luted seal annular pocket
chamber and bell or inverted cup float connected by jam nuts to a spindle to
actuate the valve. A portable or removable cover is fitted over the governing
vessel and the pressure weights would or may be mounted on the spindle inside the
vessel, instead of outside as is usual heretofore.
Under one arrangement the improved regulating valve would be formed as a
slide valve working against a vertical valve seat or partition in the gas inlet close
chamber of the governor. The valve would be screwed or connected by a
projecting lug to the lower end of the actuating vertical spindle, and preferably
formed of a channel shape with its projecting face bearing on a vertical fixed guide
plate. This valve is formed with one port or opening on its face preferably about
mid-way of its length acting against the seat or vertical partition which is formed
with two ports or openings at a short distance apart over each other. The action
is as follows:-The gas entering from the inlet orifice passes through the ports in
the valve seat to the outlet opening of the governor, the pressure after passing the
valve seat also acting on the regulating Hoat or gas holder.
If the pressure
increases beyond that of the loaded holder, the latter will rise and raise the valve
spindle and valve, so that the solid parts on each side of its port will cover or
partially cover the two ports on the valve seat or vertical web and thus shut off entirely
or partially the gas supply until the pressure has been again reduced on the rear
side of its seat, when it will fall again to uncover the gas supply ports, until in its
normal or lowest position the valve port will be in line with the lower port of its
seat, and its upper solid cover part below that of the upper port of the seat or face.
Although the valve has been described as formed with only one port, it may be
formed with any number of ports, and the valve seat would preferably have one
port more than the number in the valve.
Under another arrangement the valve may be made in the form of a hollow
cylinder, having one, two, or more ports on its one side working past corre-
sponding ports formed in the vertical web seat which is here placed on the inlet
side of the valve and in an annular brass liner preferably inserted between the
web and the valve. The opposite side of the cylindrical valve would preferably
have one large port or open space, and a corresponding port would be formed
through the brass liner and vertical web through which the gas passes from the
governor. The gas would pass from the inlet orifice of the governor through the
inlet ports in valve face and valve, and out through the opposite port or opening in

page_text: the valve and vertical web, and the pressure would act through the open top of the
valve on the enclosing holder, so that when the gas pressure increased beyond that
of the weighted holder the rising of the latter would through its spindle raise the
valve, so that its metallic or solid parts would cover the ports on the inlet valve
bearing liner and web, and when the pressure was lowered the descent of the holder
would uncover the inlet ports to pass through an increased quantity or pressure of
gas. In some cases the valve may have a close bottom. Or this cylindrical valve
may have its lower end or part working within a mercurial or liquid annular pocket
chamber and have a series of annular openings or ports formed round it near its
upper end through which the pressure gas would pass from the inlet orifice or
governor. When the pressure increased beyond that of the loaded holder the
rising of the latter would raise the valve and being the annular ports above an
annular horizontal seat plate, so that the lower metallic or solid part of the
cylindrical valve would close the passage of gas until the float again descended and.
lowered the valve with its ports beyond the horizontal seat to again permit of the
passage of gas. Or the fixed valve chamber may be made annular with an annular
port or ports near its centre, and the valve be formed as a close cylindrical chamber
connected at its centre to the valve spindle and with an outer annular pocket
chamber filled with glycerine, water or other liquid seal, within which the lower
part of stationary seat would be enclosed. The gas would pass through the ports
of valve seat and over the top of the pocket chamber of valve, but as the pressure
increased beyond that of the weighted holder the rising of the valve spindle would
raise the pocket chamber and the water seal would cover the ports in valve scat and
prevent passage of gas until the holder and valve spindle lowered the valve again.
Or the stationary valve casing may be made in the form of an annular chamber
with a series of ports preferably angled formed annularly round it through which
the gas would enter, and the valve consist of two horizontal discs formed or
mounted on the vertical spindle and working up against annular seats formed on the
annular valve chamber, so that the gas would pass through between the seats and
discs when the latter was lowered, but when the pressure increased beyond that of
the weighted holder the horizontal discs would by the rising of the holder and
valve spindle close against their seats and prevent or diminish the supply of gas
passing through the governor. Or the annular valve chamber may be formed with
two sets of annular ports and a close disc or end be formed at the lower end of
valve with two discs above, to regulate or balance the pressure with the raising and
lowering of the float connecting spindle. Or the valve may be formed as one disc
mounted to oscillate on a central axis within a cylindrical valve chamber with inlet
and outlet ports. In this case the valve spindle would be connected direct or by a
link to one end of the valve, and the gas would escape past the valve when open,
through the outlet port, but when the holder and valve spindle rose, they would
raise the one end of valve and lower the other to bear on the inside surface or face
of valve chamber and reduce or prevent passage of gas until the holder and valve
spindle were lowered again. Under another modified arrangement the valve
spindle may pass down through a vertical central web, and two or more radial webs
be fitted in the valve chamber connected to a bottom fixed close disc, and the valve
be made as a cylindrical vessel with transverse bridge connected to lower end of
valve spindle, and vertical widening out or pocketed sides, having the upper
surface preferably of an angled or tapered shape to work against a corresponding
shaped annular valve seat, and the lower narrow part also formed with angled or
tapering edges to work against the lower close disc of valve chamber. The gas
would pass between the valve and seats and through the hollow space of latter
until the holder and spindle rose to close valve against its seats, while on the
lowering of same the gas would again pass between the valve and seats. Or the
scat may be placed below and be made cylindrical and angling or tapering out
at its upper part where it would be formed with a close end, and with an annular
opening or ports in the tapered part through which the entering gas would pass

page_text: from the hollow seat. While the valve would be connected to the valve spindle
above this seat, and may have a transverse bridge or close top and cylindrical sides
tapering or angling downwards to annularly surround the ports on the seat, and the
gas would pass from the seat ports and escape between it and the lower part of
valve, but when the pressure increased beyond that of holder the rising of the
latter would raise the lower angled part of valve to come in contact with the upper
tapered part of valve seat and close the ports in the latter, and thus prevent passage
of gas until the holder and valve spindle again descended.
Dated 14th January 1892.
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to Apparatus for Governing or
Regulating the Pressure or Flow of Illuminating Gas or other
Fluids.
We, ALEXANDER MORTON STRATHEEN, and ALEXANDER GEORGE STRATHERN,
both of 118 Bromielaw, Glasgow, Lanarkshire, Engineers, do hereby declare the
nature of our invention and in what manner the same is to be performed, to he
particularly described and ascertained in and by the following statement in writing,
reference being had to the accompanying drawings, that is to say :-
This invention has reference to and comprises improvements in the construction
or arrangement and combination of the parts of valves and valve fittings, and is
susceptible of considerable modification for governing or regulating the pressure or
rate of flow of fluids such as illuminating gas in passing from the gas holders to the
delivery mains, or from stations or districts to street mains or pipes.
And in order that our said invention and the manner of performing or carrying
the same into effect or practice may be properly understood, we have hereunto
appended an explanatory sheet of drawings, in which the same reference letters
are used to indicate corresponding parts in all the figures where shown.
Figure 1, is a sectional elevation of a slide valve and fittings as adapted for
governing or regulating the supply pressure of illuminating gas in accordance with
one arrangement of our improvements.
Figure 2 is a horizontal section as taken ou the line 1-1 Figure 1, and Figure 3
is a half end elevation corresponding to and looking at right angles to Figure 1;
while Figure 4 is a detached vertical section and plan view respectively of the cover
plate A fitted between the valve chamber and bell Hoat chamber.
Figure 5, is a sectional elevation of a double beat or nearly equilibrium valve and
its fittings for regulating or governing the pressure supply of illuminating gas as
constructed in accordance with another arrangement of our improvements, and
Figure 6 is a horizontal section as taken on the line 5-5 Figure 5.
Referring to these drawings.-In applying these improvements to gas governors,
a usual outline construction of vessel A is used, having an inlet chamber orifice A',
and it may be A", at right angles to the former, and an outlet chamber orifice A¹
and a separating partition B or partitions between them, so that the gas can only
pass through the valve or valve connections and this division 13, and having the
nsual luted seal annular pocket chamber a, into which the mercury, glycerine, or
other liquid is poured through the screw plug orifice a', and drawn off when required
through the plug orifice as, and with bell or inverted cup float a connected by jain
nuts a to a screw stem a² attached to the spindle 2 to actuate the valve b. A
screwed on cover plate A is fitted between the valve chamber and the bell float a',
and a portable or removable cover A3 is fitted over the governing vessel A, and the
pressure weights a³ would or may be mounted on the spindle a inside the vessel A,
as shown dotted, instead of outside as is usual heretofore.

page_text: Under one arrangement as shown in Figures 1 to 4 of these drawings, the
improved regulating valve would be formed as a slide valve working against a
vertical valve partition B, formed in a hollow cylindrical seating B separating the
gas inlet close chamber A' from the outlet chamber A². The valve would be
connected by a projecting slotted lug to the lower square collar end of the
actuating vertical spindle 2, and the valve would preferably be formed of a
channel shape with its projecting edges working and bearing in channel guides B₁
in the seating B. This valve is shown as formed with two ports or openings c, d,
through its face acting against the seat or vertical partition B which is formed with
three ports or openings ², c³, c, at a short distance apart over each other. The
action is as follows.-The gas entering from the inlet orifice chamber A¹ or A
which is always greater in pressure than in the outlet chamber A³, passes through
the ports c², c, c, in the valve seat B to the outlet chamber opening A² of the
governor, the pressure after passing the valve seat B, also through the passage A*
acts on the regulating bell float a actuating the regulating valve.
If the pressure
in the delivery chamber A increases beyond that of the loaded bell-float a,, the
latter will rise and raise the valve spindle and valve, so that bars or solid face
parts between and on each side of its ports c, c', will cover or partially cover the
three ports ², c³, e, on the valve seat or vertical web B, and thus shut off partially
or entirely the gas supply until the pressure has been again reduced on the delivery
side A³, of its seat B, when it will fall again to uncover the gas supply ports, until
in its lowest position the valve port c', will be in line with the lower port c² of its
seat B, and its upper solid cover part below that of the upper port ef of the scat
or face B, or be at any intermediate position to thus regulate the pressure. The
direction of flow of the gas or fluid is indicated by the arrows in Figure 1.
Although the valve has been described as formed with two ports only one port may
be used, or it may be formed with any number of ports, and the valve scat B would
preferably have one port more than the number of ports in the valve b.
Under another arrangement as shown in Figures 5 and 6, the valve scat casing
may be made in the form of an annular chamber B, fitting into the case A at top
and bottom and with a port 6x formed on it through which the gas would enter, and
the valve consist of two horizontal dises b, b, formed or mounted on the vertical
spindle which would work within a footstep guide at its lower end at 63, and these
discs would work up against annular seats c², c³, formed on the annular valve
chamber B, so that the gas would pass through between the seats 2, 3, and
dises bb, when the latter were lowered, and escape by the port passages c³, c³, to the
outlet chamber A2 and through the hollow spaces A', in the cylinder B, to act on
the diaphragm a', but when the pressure increased in the delivery chamber A²
beyond that of the weighted holder a', a³, the horizontal discs would by the
rising of the holder a', as, and valve spindle close against their seats c², ³, and
prevent or diminish the supply of gas passing through the
governor.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is.-.
First. The construction or arrangement and combination of the parts of apparatus
for governing or regulating the delivery pressure or flow of illuminating gas or
other fluids by ported slide or disc valves, substantially as herein described in
reference to and by way of application shown in the accompanying drawings.
Second. In apparatus for governing or regulating the delivery pressure or flow of
illuminating gas or other fluids, the arrangement and use of a slide ported valve
working against the face of a ported seat, and actuated by the regulated movement
of a weighted bell float or diaphragm on which the fluid pressure acts, substantially
as herein described in reference to and shown in Figures 1 to 4 of the accompanying
drawings.
Third. In apparatus for governing or regulating the pressure or flow of

page_text: illuminating gas or other fluids, the arrangement and use of duplex disc valves
working against annular seats, and operated through a rod by the regulated
movement of a weighted bell float or diaphragm on which the fluid pressure acts,
substantially as herein described in reference to and shown in Figures 5 and 6 of
5 the accompanying drawings.
10.1
1000
W. R. M. THOMSON & Co.,
96, Buchanan Street, Glasgow, Agents.