Improvements in Cut-off Apparatus for the Water Supply to Pumps used for Compressing Gases.
Year: 1898

page_text: Date of Application, 7th Oct.,
1898
Complete Specification Left, 8th Aug., 1899-Accepted, 9th, Sept., 1899
Improvements in Cut-off Apparatus for the Water Supply to Pumps
used for Compressing Gases.
I, WILLIAM THOMAS SUGG, of Vincent Works, Regency Street, Westminster,
London, S.W., Engineer, do hereby declare the nature of this invention to be as
follows:-
=
In incandescent gas lighting, it has been found that the best results have been
obtained when the gas or air, or both, are under pressure, and, consequently,
when an installation has been made, means have been provided for giving this
pressure.
In some cases these means have consisted of a small pump operated by water
pressure, and in such apparatus it is found desirable to have a cut-off apparatus
by which the water for operating the pump is cut off when the lights are put out,
and the pressure of the gas exceeds a certain given pressure.
These cut-off apparatus have not given entirely satisfactory results, and the
object, therefore, of the present invention is to provide a simple and efficient
cut-off apparatus for automatically stopping the working of the pump, when
required.
To this end, the apparatus consists of a gas receiver of suitable capacity provided
at the inlet with a suitable valve to prevent back pressure on the pump.
This receiver is provided with a casing open to the receiver, and containing a
small mercury sealed gas bell.
To this bell is secured a rod on which weights can be mounted, and to this rod
one arm of a lever is secured, the other arm being connected with the water-cock
by a link.
As the pressure increases in the receiver above that of the weight, the bell
rises, and rocks the lever, to shut off the water-cock.
The receiver is in connection by a suitable pipe with the service pipes in the
house.
1
1 Ja of Catalan 1808
NEWTON & SON,
Agents for the Applicant.
Improvements in Cut-off Apparatus for the Water Supply to Pumps
used for Compressing Gases.
1. WILLIAM Tomas Sege, of Vincent Works, Regency Street, Westminster,
London, S.W., Engineer, do hereby declare the nature of this invention and in
DS17

page_text: what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
In order to give the pressure of gas necessary to ensure the best results in
incandescent gas lighting a small pump operated by power has been used to propel
the gas.
in such apparatus a cutoff device or mechanism is necessary to stop the working
of the motor when the pressure of the gas exceeds a certain amount as for instance
when some or all of the lights are turned out and the object of this invention
is to provide a simple and efficient cut-off mechanism for that purpose.
To this end a mercury sealed appliance operated by the pressure of the gas is
connected by suitable mechanism with the device governing the supply of power
to the motor so that as the appliance rises and falls according to the pressure
the governing device is turned off or on as required.
In the accompanying drawing I have shewn the device in sectional elevation.
A indicates the position of the forcing mechanism which may consist of a water
motor and a suitable pump B is a receiver into which the gas is forced the inlet
pipe C being provided with a mushroom or other suitable valve to prevent back
pressure on the pump. The outlet C is covered with fine perforated zine or other
suitable material.
At top the receiver is open to a casing D in which is contained a small mercury
sealed bell E. This bell is provided with a guiding stem or spindle F which
projects upwards through the top of the casing and carries a platform for
weights G.
.
This stem is also pivotted to the short arm of the lever H, the longer arm
of which is connected by a link J with the lever or handle K of the water supply
cock L.
The action is extremely simple. So long as the whole of the lights in an
installation are burning the gas will pass through the receiver without acting on
the bell E but directly some or all of the lights are turned out then the pressure
in the receiver will increase and when it exceeds a certain amount (fixed by the
weights G) the bell E will rise and act on the lever H thus cutting off the supply
of water to the motor. The motor will thus stop and consequently the pump will
stop and the pressure will remain stationary.
When any of the lights are turned on the hell E will gradually descend under
the influence of the weights G & thus automatically turn on the power again to
the motor which will commence to work again.
I am aware that a device for automatically regulating the working of a water
pump, wherein a loaded gas holder, actuating, by its rise and fall, a lever attached
at one end to the water cock, has been previously described, and I make no
claim thereto.
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:
1
1. The combination with a power operated pump or a receiver provided with a
mercury sealed floating bell operated by the pressure of gas the movement of
said bell being communicated through suitable mechanism to a device for stopping
the supply of power to the pump as and for the purpose set forth.
2. A cut off apparatus for the water supply to pumps used for compressing gases
for incandescent lighting as herein shewn & described.
Dated this 8th day of August 1899.
NEWTON & SON,
Agents for the Applicant.