IMPROVE- MENTS IN APPARATUS FOR AUTOMATICALLY REGULATING THE SUPPLY OF GAS TO GAS ENGINES OR TO OTHER PLACES WHERE AN INTERMITTENT SUPPLY OF GAS IS REQUIRED AND ALSO OF PREVENTING JUMPING OF GAS FLAMES to bes
Year: 1885

page_text: тирготещения in Apparatus for Automatically Regulating що
Supply of Gas to Gas Engines or to other Places where an
Intermittent Supply of Gas is Required, and also of Pre-
venting Jumping of Gas Flames.
I, GEORGE BRAY, of Blackman Lane, Leeds, in the County of York, Gas-
Lighting Engineer, do hereby declare the nature of said Invention for "IMPROVE-
MENTS IN APPARATUS FOR AUTOMATICALLY REGULATING THE SUPPLY OF GAS TO
GAS ENGINES OR TO OTHER PLACES WHERE AN INTERMITTENT SUPPLY OF GAS
IS REQUIRED AND ALSO OF PREVENTING JUMPING OF GAS FLAMES
to be as
follows:-
"
The object of my Invention is to overcome the objection hitherto applying to
the use of gas Engines or other Apparatus by which large quantities of gas are
intermittently used owing to the variations of pressure due to the intermittent
nature of the consumption of gas causing such a variation of pressure in the
service pipes and mains as to give a pulsation or "jumping" in the lights which
are supplied in the same main and a further object of my Invention is to overcome
the objection due to the variation of the quantity of gas taken from the reservoir
or storage bag by the Engine or other Apparatus for each charge, which variation
is due to the difference of pressure in the service pipes, and mains as aforesaid.
To remedy these defects I combine a governor with a gas bag or reservoir in
such a manner as to cause the gas to flow into and to be always taken from the
bag or reservoir at or about the pressure of the surrounding atmosphere so that the
pulsations of the gas will not be communicated to the gas in the supply pipe and
mains.
The gas bag or reservoir I use is made capable of expanding and contracting
after the manner of bellows. The movable portion or portions of the bellows is or
are connected to a valve or the like constituting the governor the said valve being
so constructed and arranged in combination with its port and with the gas bag or
reservoir that the said port is opened only to a small extent by a comparatively
large movement of the valve and that the valve is not noved by the ordinary
pulsations of the bag or reservoir due to the withdrawal of Gas therefrom until
the Engine or other consumer demands an increased supply of Gas. The object of
causing the port to be opened only to a small extent by a large movement of the
valve is to make the alterations in the supply of gas, effected by the movement of
the valve, small in degree in proportion to the distance over which the valve is
moved as by this means the pressure in the service pipe and main is less disturbed
than it otherwise would be. The result of the arrangement whereby the valve.
is not moved by ordinary pulsations as aforesaid is practically to overcome all
disturbance of pressure in the service pipe and main.

page_text: I do not limit myself to any one particular construction of the governor for the
said purpose provided that it be fitted to fulfil the offices hereinbefore named.
I will describe the general nature of arrangements suited for the purpose. The
valve case is in communication with the gas service pipe and main and is immovable
by being attached to an immovable part of the bag or reservoir or otherwise. The
case is divided along its whole length into two compartments by a plate in which
is a long slit. One of these compartments is closed at both ends and the other is
closed at the outer end and in the other end of this second compartment the valve
works and from it the gas is supplied to the bag or reservoir.
The gas passes into the bag or reservoir through the aforesaid slit when the valve
does not close it. The area of the slit when fully open is large enough to pass an
ample supply of gas for the engine or other consumer. To the valve is attached
a spindle connecting it with a moveable part of the bag or reservoir. Owing to
the gas entering the bag or reservoir the valve is drawn forward in its compartment
of the case thereby reducing the area of the slit through which the gas can enter
the bag or reservoir.
I prefer to time the closing of the valve so that it takes place before the pressure
of the gas inside the bag or reservoir exceeds that of the surrounding atmosphere
except to the small extent required to open the bag or reservoir and this whatever
may be the pressure in the service pipe and main. By thus supplying the engine
or the like with gas at a practically constant pressure I secure a regularity of charge
and thereby prevent waste and irregularity in the working of the engine or
apparatus and to a great extent reduce the jumping of the lights on the same
main due to the variation of pressure resulting, from taking in the charges of gas
from the bag or reservoir.
Some variation of pressure and consequent pumping of lights would be caused
by the valve moving as often and to the same extent as the moveable end of the
bag or reservoir but to prevent this I make the spindle of the valve capable of a
certain amount of movement independently of the valve which may be effected by
passing the spindle loosely into or through the valve and fixing on the said spindle
two stoppers so arranged that the spindle can be moved backward and forward for
some distance without moving the valve. When the bag or reservoir is not varying
the quantity of gas taken in the pulsations of the bag or reservoir occur without
moving the valve and consequently without disturbing the gas in the service pipe
and main.
The following is a modified form of the valve just described. The valve case is
similar to that just described and may be attached to the service pipe and the bag
or reservoir in a similar manner. On the upper side of the interior of the valve
case there is a channel for the gas extending from the service pipe to near the
outlet end of the cylinder which passes into the bag or reservoir The part of
the valve next the inside of the bag or reservoir is conical and the other end of the
valve fits the interior of the valve case and is sufficiently heavy to balance the
conical end of the valve.
The valve is connected to the moveable end of the bag or reservoir and is moved
in a similar way to that hereinbefore described. As the valve is drawn forward its
thick end gradually closes the gas way and when it is pushed back the gas way is
gradually widened.
The gas is supplied to the engine or other place of consumption from the bag or
reservoir through a pipe passing through the fixed end of the bag or reservoir in
any convenient position but by preference below the valve cylinder.
Dated 1:00-1 1
1005
J. HENRY JOHNSON,
Agent for the said George Bray.

page_text: Improvements in Apparatus for Automatically Regulating the
Supply of Gas to Gas Engines or to other Places where an
Intermittent Supply of Gas is Required, and also of Pre-
venting Jumping of Gas Flames.
I GEORGE BRAY of Blackman Lane, Leeds, in the County of York Gas Lighting
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:―
The object of my Invention is to overcome the objection hitherto applying to the
use of Gas engines or other apparatus by which large quantities of Gas are
intermittently used the said objections arising from the variations of pressure due
to the intermittent nature of the consumption of gas causing such a variation of
the pressure in the service pipes and mains as to give a pulsation or "jumping" in
the lights which are supplied by the same main and a further object of my
Invention is to overcome the objection due to the variation of the quantity of gas
taken from the storage bellows or reservoir by the Engine or other apparatus for
each charge which variation is due to the aforesaid variation of pressure in the
service pipes and mains.
To remedy these defects I combine a Governor with a Gas bag or bellows in such
a manner as to cause the gas to flow into and to be taken from the bag or bellows
at or about the pressure of the surrounding atmosphere so that the pulsations of
the gas bag or bellows will not be communicated to the gas in the supply pipes
and mains.
The gas bag or bellows I use is made capable of expanding and contracting in
such a manner that the bag or bellows is capable of moving in true or approxi-
mately true relation to the quantity of gas entering and leaving the bag or bellows.
The moveable portion or portions of the bag or bellows is or are connected to a
valve or the like constituting the governor the said valve being so constructed and
arranged in combination with its port and with the gas bag or bellows that the
said port is opened or closed only to a small extent by a comparatively large
movement of the valve and that the valve is not moved by the ordinary pulsations
of the bag or bellows due to the withdrawal of gas therefrom until the Engine or
other consumer demands an increased or decreased supply of gas. The object of
causing the port to be opened or closed only to a small extent by a large movement
of the valve is to make the alterations in the supply of gas effected by the
movement of the valve small in degree in proportion to the distance over which
the valve is moved as by this means the pressure in the service pipe and main is
less disturbed than it otherwise would be. The result of the arrangement whereby
the valve is not moved by ordinary pulsations as aforesaid is practically to
overcome all disturbance of pressure in the service pipe and main. Owing to the
construction of the gas reservoir as bellows as distinguished from a simple
collapsible bag or receiver the point or points of attachment of the valve to the
bellows is or are caused to move in a true line (or practically so) with the line in
which the valve travels to open close and regulate the passage through the port
which it controls,

page_text: And in order that my said Invention may be fully understood I shall now
proceed more particularly to describe the manner in which the same may be
performed and for that purpose shall refer to the several figures on the annexed
sheet of drawings the same letters of reference indicating corresponding parts in all
the Figures.
Figure 1 is a side view partly in section and Figure 2 is a view at right angles
and also partly in section and Figure 3 shews a section on the line 1, 2 Figure 1.
The valve case A is in communication with the gas service pipe B coming from
the main and is fixed by. being attached to a fixed part of the bellows or otherwise.
As shewn in the drawing it is attached to the pipe B and the part c which forms
one of the ends of the expanding and contracting bellows C. The case A is divided
along its whole length into two compartments A1 A2 by a plate a in which is a
long slit a. The compartment A¹ is closed at both ends and the other com,
partment A is closed at the outer end and in this second compartment the
valve D works and from the said second compartment the gas is supplied to the
bellows C.
The gas passes into the bellows through the aforesaid slit a' when the valve D
does not close its communication with the interior of the bellows C. The area of
the slit a² when fully open is large enough to pass an ample supply of gas for the
engine or other consumer. To the valve D is attached a spindle d connecting it
with a moveable part of the bellows C. The said spindle is shewn in the drawing
as being attached to the cover c' of a tube c' on the moveable end of the bellows C
this tube allowing of the bellows closing as then the said tube c passes over the
internally projecting part of the casing A. Owing to the gas entering the
bellows C the valve D is drawn forward in its compartment A' of the case A
thereby reducing the area of the slit a through which the gas can enter the
.bellows C.
I prefer to time the closing of the valve D so that it takes place before the
pressure of the gas inside the bellows exceeds that of the surrounding atmosphere
except to the small extent required to open the bellows and this whatever may be
the pressure in the service pipe and main. By thus supplying the Engine or the
like with gas at a practically constant pressure I secure a regularity of charge and
thereby prevent waste and irregularity in the working of the Engine or apparatus
and to a great extent reduce the jumping of the lights on the same service pipe or
main due to the variation of pressure resulting from taking in the charges of gas
from the bellows.
Some variation of pressure and consequent jumping of lights would be caused
by the valve D moving as often and to the same extent as the moveable end of the
bellows but to prevent this I make the spindle d of the valve capable of a certain
.amount of movement independently of the valve which may be effected by passing
the spindle loosely into or through the valve and fixing on the said spindle two
stoppers and d² so arranged that the spindle can be moved backward and
forward for some distance without moving the valve. By this means when the
quantity of gas taken into or out of the bellows is not being greatly varied by the
requirements of the gas engine or other consumer the pulsations of the bellows
occur without moving the valve and consequently without disturbing the gas in
the service pipe and main.
Figure 24 shews a modified construction in which the compartments A¹ and A'
are made by a tube within another tube the inner tube having the slit a* therein
, and containing the valve D which in this case is made with stops at each end
against which the stop on the spindle d bears to move the valve and yet prevent
movement by ordinary pulsation of the bellows C as aforesaid. This figure
requires no further description as it is in its general operation and essential
construction the same as that hereinbefore described.
i. Figures 4 and 5 shew in sections at right angles to each other another
modification of the valve D The valve case A may be attached to the service
pipe and to the bellows C in a similar manner to the valve case shewn in figure 1.

page_text: On the upper side of the interior of the valve case there is the channel a² for the
gas the said channel extending from the service pipe to near the outlet end of the
case A which passes into the bellows. The part of the valve D next the inside of
the bellows is conical and the other end of the valve fits the interior of the valve
case and can with advantage be made sufficiently heavy to balance the conical end
of the valve.
The valve is connected to the moveable end of the bellows and is moved in a
similar way to that herein before described. As the valve is drawn forward its
thick end gradually closes the gas way and when it is pushed back the gas way is
gradually widened.
The gas is supplied to the Engine or other place of consumption from the bellows
through a pipe passing through the fixed end of the bellows in any convenient
position but by preference below the valve case.
In the drawing I have shewn at E the pipe for the withdrawal of the gas from
the bellows C which bellows I have shewn as provided with a runner F mounted
upon a rail or rod f extending from the pipe B as this acts as a guide to support
the bellows and keep the point of attachment of the spindle din proper relation to
the line of travel of the valve but it is to be understood that the details of
construction can be varied without departing from the nature of my Invention for
example in plan of the runner F and rod f the bellows can be sustained by a cord
or rod attached and swinging from above.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is-
First. In apparatus for automically regulating the supply of gas for the purposes
herein before mentioned the combination of a gas bellows or bag and a governor
or valvular apparatus such that the gas is caused to flow into and to be taken from
the bellows or bag at or about the pressure of the surrounding atmosphere and the
pulsations of the gas bellows or bag are not communicated to the gas in the supply
pipes and mains substantially as herein before described.
Second. The combination for the purposes aforesaid of the valve shown in the
accompanying Drawings or its equivalent worked by the spindle & and stops a¹
and d or their equivalents with a bellows or bag.
Third. The combination for the purposes aforesaid of the valve shown in the
accompanying drawings or its equivalent with the spindle d and stops d¹ and d² or
their equivalents.
Fourth. For the purposes described the combination with a bellows of the kind
bereinbefore described and illustrated of a valve or governor so connected to the
part which operates it that it is not opened or closed by the ordinary pulsations of
the bellows (in which the gas is received and from which it is drawn) due to the
normal drawing of gas therefrom substantially as hereinbefore described.
Fifth. The arrangement and combination of parts constituting the apparatus for
automatically regulating the supply of gas. substantially as as and for the purposes
herein before described and illustrated by the accompanying Drawings.
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