Means for Regulating the Supply of Water and Gas to the Condensing Cylinders of Aerated Water Machines.
Year: 1893

page_text: Date of Application, '2'st Oct., 1893
Complete Specification Left, 21st July, 1894-Accepted, 15th Sept., 1894
PROVISIONAL SPECIFICATION.
Improved. Means for Regulating the Supply of Water and Gas to
the Condensing Cylinders of Aerated Water Machines.
I, EDWARD SAMUEL CHAVASSE, of Ombersley, near Droitwich, Worcester-
shire, Aerated Water Engineer, do hereby declare the nature of this invention to
be as follows:-
This invention consists of the hereindescribed improved means for regulating the
supply of water and gas to the condensing cylinders of aerated water machines.
By my invention when the water level in the condensing cylinder of 'the aerated
water machine has reached a certain level the water has also risen in a globe or
other vessel which is carried by a lever arm and has so increased 'the weight of the
same as to open a bye-pass valve and permit the gas from the condensing cylinder
to flow to the pump or pumps (which force the gas and water into the condensing
cylinder) and back again and also to act upon and close a check valve in the water
supply pipe leading to the pump or pumps so that although the pump or pumps
continues or continue to work it or they simply move a small portion of the gas to
and fro, and the pump ceases or the pumps cease to draw and force more gas and
water into the condensing cylinder until the water level therein falls when the
small globe or cylinder having become lighter shuts the bye-pass valve and allows
the check valve to open and the pump or pumps then continue to pump water and
gas into the condensing cylinder as before. It will be seen that by my invention I
automatically regulate and control the supply of gas to the condensing cylinder as
well as the supply of water thereto and I thus prevent any possibility of the gas
being pumped into the condensing cylinder to a higher pressure than the nominal
pressure.
My said invention is arranged as follows:-I provide a two armed lever turning
on a fulcrum pin suitably supported and carrying at one end the small globe or
other closed vessel and a counterbalance weight at the other end which counter-
balance weight has to be set so as to counterbalance the globe or other vessel and
permit of the latter falling when as hereinafter described the water rises therein up
to a certain level. The top of this globe is connected by a flexible or jointed pipe
to the gas space in the condensing: cylinder and the bottom of this globe or other
vessel is connected by a flexible or jointed pipe to the water space in the con-
densing cylinder so that the water will rise in the globe or other vessel to the same
level as the water in the condensing cylinder the centre of the globe. or other
vessel being by preference arranged about level with the mean water line in the
condensing cylinder. The said lever which carries the globe or other vessel is
connected to a bye-pass valve so arranged that when the globe or other vessel
causes the lever arm to move down the bye-pass valve will be opened and when the
lever arm with the globe or other vessel rises the bye pass valve will thereby.be
closed. There is an inlet in the bye pass valve casing above the said valve this
inlet communicating with the gas and water in the condensing cylinder and with
the gas and water in the globe or other closed vessel carried by the lever. This
inlet to the bye pass valve casing is by preference a little above the mean water
level in the condensing cylinder and in the globe so that only gas and not water
will enter the bye pass valve casing. Underneath the bye-pass valve there is an
outlet from the bye pass valve casing leading to the valve box of a check valve
which I provide in the water supply pipe to the pump or pumps. This check
valve is connected to a diaphragm or a piston in a small chamber above the check
valve to which chamber the outlet pipe from the bye-pass valve is connected so

page_text: that when the bye-pass valve is opened the pressure of the gas will act upon the
diaphragm or piston and close the check valve thus shutting off the water supply
to the pump or pumps. From this chamber in the check valve box there is a small
passage leading into the water supply pipe between the check valve and the pump
or pumps and this passage is controlled by a screw down valve or cock so that it
can be opened or closed as desired.
The apparatus above described operates as follows:-
Before the water in the condensing cylinder has risen to its proper working level
there is not sufficient water in the globe or other closed vessel on the end of the
lever arm to overcome the counterbalance and open the bye-pass valve which
latter therefore remains closed by the action of the counterbalance on the lever
arm, but when so much gas and water have been pumped into the condensing
cylinder that the water has risen to its proper working level the water also has
risen to the same level in the globe or vessel carried by the lever arm which will
now overbalance the counterbalance and open the bye-pass valve so that the gas
from the condensing cylinder will rush past the bye pass valve and enter the small
chamber in the check valve box and close the check valve thus cutting off the
water supply to the pump or pumps and then as the pump or pumps continue to
work sufficient gas will pass through the small passage from the said chamber to
the water supply pipe between the check valve and the pump or pumps to prevent
any more gas being drawn from the gas supply any superfluous gas passing back to
the gas bell. Thus no more gas or water will be pumped into the condensing
cylinder until the water level therein has fallen below the mean level when the
globe or other small vessel on the lever arm having thus become lighter will rise
with its lever and close the bye-pass valve shutting off the gas pressure from acting
on the check valve which will then be lifted by the suction of the pump or pumps
and the supply of water and gas will then continue to the condensing cylinder until
the water again reaches the mean working level when my said apparatus will again
come into action as above described.
In a slightly modified form of my invention the said small globe or other
closed vessel cis arranged to act directly upon the gas bye pass valve instead of
acting through the lever arm.
Dated this 19th day of October 1893.
CHARLES BOSWORTH KETLEY
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improved Means for Regulating the Supply of Water and Gas to
the Condensing Cylinders of Aerated Water Machines.
I, EDWARD SAMUEL CHAVASSE, of Ombersley, near Droitwich, Worcestershire,
Aerated Water 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 :-
This invention consists of the herein described improved means for regulating
the supply of water and gas to the condensing cylinders of aerated water machines.
By my invention when the water level in the condensing cylinder of the acrated
water machine has reached a certain level the water has also risen in a globe or
other vessel which is carried by a lever arm and has so increased the weight of
the same as to open a bye-pass valve and permit the gas from the condensing
cylinder to flow to the pump or pumps (which force the gas and water into the
condensing cylinder) and back again and also to act upon and close a check valve in
the water supply pipe leading to the pump or pumps so that although the pump or
pumps continues or continue to work it or they simply move a small portion of the
gas to and fro, and the pump ceases or the pumps cease to draw and force more

page_text: gas and water into the condensing cylinder until the water level therein falls, when
the small globe or cylinder having become lighter shuts the bye-pass valve and
allows the check valve to open and the pump or pumps then continue to pump
water and gas into the condensing cylinder as before. It will be seen that by my
invention I automatically regulate and control the supply of gas to the condensing
cylinder as well as the supply of water thereto and I thus prevent any possibility
of the gas being pumped into the condensing cylinder to a higher pressure than
the nominal pressure.
My invention is arranged as I will now describe by referring to the accompanying
drawing (which is continued on two sheets) which represents my invention in part
sectional elevation.
I provide a two armed lever A turning on a fixed fulcrum pin a¹ and carrying
at one end as a small globular or other shaped closed vessel B and having at or
near the other end as an adjustable counter balance weight C which can be moved
along the lever A and set by the set screw c¹ so as to counter balance the globe B
and permit of the latter falling when as hereinafter described the water rises up to
a certain level. In the top of this globe B there is an inlet d' which by the
flexible pipe D or by a jointed pipe is connected to the gas space e' in the condensing
cylinder E and the bottom of this globe B is connected by the flexible pipe F or
by a jointed pipe to the water space in the condensing cylinder E so that the
water will rise in the globe B to the same level as the water in the condensing
cylinder E the centre of the globe B being by preference arranged about level
with the mean water line M in the condensing cylinder E as shewn upon my
drawing. The lever A which carries the globe B or other vessel is connected to
the bye pass valve G which can be done by the connection at which is jointed to
the lever A at a and is screwed to the valve stalk g' and connected to the flexible
diaphragm a at the top of the valve casing g' thus keeping the valve chamber gl
gas tight but allowing of the valve G to be pushed down and opened by the
connector a when the lever arm A falls and to rise and close the bye pass valve G
when the lever arm A rises. There is an inlet h' in the bye pass valve casing g'
above the valve G this inlet h¹ communicating by the pipes H and D with the gas
and water in the condensing cylinder and with the gas and water in the globe B or
other closed vessel carried by the lever A. This inlet h¹ to the bye pass valve
casing g is by preference arranged as shewn a little above the mean water line in
the condensing cylinder E and in the globe B so that only gas and not water will
enter the bye pass valve casing g'. Underneath the bye pass valve & there is an
outlet leading by the pipe I to the valve box J of a check valve which I
provide in the water supply pipe K' K' which leads the water from the supply tank
to the pump or pumps the water flowing in the direction indicated by the arrows.
This check valve j' is connected to a diaphragm (or instead of a diaphragm there
may be a piston) in the small chamber above the check valve and to this
chamber the outlet pipe I from the bye pass valve is connected so that when the
bye pass valve G is opened the pressure of the gas will act upon the diaphragm
or piston and close the check valve thus shutting off the water supply to the
pump or pumps. From this chamber in the check valve box J there is a small
passage leading through the passage into the water supply pipe K between
the check valve and the pump or pumps and this passage is controlled by a
screw down valve or cock so that the passage can be opened or closed as desired.
N is a plate to which the valve casing g¹ is fixed.
The apparatus above described operates as follows:-Before the water in the
condensing cylinder has risen to its proper working level there is not sufficient
water in the globe or closed vessel B to overcome the counter balance C and open
the bye pass valve G which latter therefore remains closed as shewn on the drawing
by the action of the counter balance C on the lever arm A, but when so much gas
and water have been pumped into the condensing cylinder F that the water has
risen to its proper working level indicated by the line M the water has also risen
to the same level in the globe or closed vessel B which will now overbalance the

page_text: counter balance C and open the bye pass valve G so that the gas from the
condensing cylinder E will rush from the pipe D through the pipe H past the bye
pass valve G and enter the small chamber in the check valve box and act upon
the diaphragm and close the check valve j' thus cutting off the water supply to
the pump or pumps. Then as the pump or pumps continue to work sufficient gas
will pass through the small passage from the chamber to the water supply
pipe K between the check valve and the pump or pumps to prevent any more
gas being drawn from the gas supply; any superfluous gas passing back to the gas
bell. Thus any more gas or water will not be admitted into the condensing
cylinder E until the water level therein has fallen below the mean level M when
the globe or other closed vessel B on the lever arm A having thus become lighter
will rise with its lever A and close the bye pass valve G shutting off the gas
pressure from acting on the diaphragm of the check valve j' which latter will
then be lifted by the suction of the pump or pumps and the supply of water and
gas will then continue to the condensing cylinder E until the water therein again
reaches the mean working level M when.my said apparatus will again come into
action as above described.
The accompanying drawing illustrates what I consider to be the best way for
carrying my said invention into practice but it is to be understood that my invention
is not limited to the precise details shewn as for instance instead of the small globe
or closed vessel B being arranged to act through the lever A this globe or closed.
vessel might.be. arranged to act directly upon the gas bye pass valve G.
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 :-
The hereindescribed improved means for regulating the supply of water and gas
to the condensing cylinders of aerated water machines, consisting of the combination
of a hollow vessel and a bye pass valve both in connection with the gas and water
in the condensing cylinder, and a check valve arranged in the pump suction pipe
said check valve having a diaphragm. or piston in a chamber communicating with
the bye pass valve and with the pump suction pipe between the pump or pumps and
the check valve, the parts being so arranged that when the water rises above the
mean level in the condensing cylinder and hollow vessel, the bye pass is opened'
causing the gas from the condensing cylinder to close the check valve and cut off
the water supply to the pump or pumps and at the same time the gas enters the
said pump suction pipe so that the supply of gas and water to the condensing
cylinder ceases, and when the water falls below its mean level in the condensing
cylinder and hollow vessel the said bye pass is closed which by cutting off the gas
to the check valve allows the check valve to open and the pump or pumps to
continue the supply to the condensing cylinder, all substantially as hereinbefore
set forth.
Dated this 20th day of July 1894.