A New or Improved Tank and Apparatus for Supplying Liquids under Pressure.
Year: 1895

page_text: Date of Application, 2nd Feb., 1895
Complete Specification Left, 15th Oct., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
A New or Improved Tank and Apparatus for Supplying Liquids
under Pressure.
I, THOMAS PHILIP MARSH, of No. 18 Little Street, West Bromwich, in the
County of Stafford, Gentleman do hereby declare the nature of this invention to be
as follows:-
My invention consists of the construction and combination of parts hereinafter
described constituting a new or improved tank or apparatus for supplying liquids
under pressure either for direct delivery from the said tank or for conveyance to
a distance.
The tank and apparatus constituting my invention are applicable for use in place
of an overhead tank and generally where a tank holding liquid under pressure is
required.
The said tank and apparatus consist of the following arrangement or combination
of parts.
I take a tank of the required capacity and divide it by à cross vertical partition
into two chambers, one of the said chambers constituting a receiving chamber and
the other a pressure chamber. In the receiving chamber of the divided tank the
liquid is placed and is forced therefrom by a force pump into the second or
pressure chamber of the tank, a pipe from the said force pump opening into the
said pressure chamber. The force pump is worked by a driving shaft crossing the
receiving chamber of the tank and turning in bearings supported by uprights on
opposite sides of the said receiving chamber. The said driving shaft is furnished
with a fly wheel and driving pulley and may be worked by a steam engine or other
motor, or by hand. By the working of the force pump the liquid in the receiving
chamber is conveyed to and maintained under pressure in the pressure chamber.
An outlet pipe in the pressure chamber delivers the liquid under pressure directly
from the said chamber either in a stream or in the form of spray; or the said
outlet pipe is connected with other pipes for conveying the liquid under pressure
to a distance.
The pressure chamber of the compound tank is provided with a safety valve the
cap of which is connected by an overflow pipe with the receiving chamber so that
when the pressure of the liquid in the pressure chamber of the tank exceeds that
at which the tank is regulated to bear the safety valve opens and the liquid is
conveyed back by the overflow pipe to the receiving chamber.
Besides providing for the safety of the tank the arrangement last described
permits of the constant working of the force pump notwithstanding the non
delivery of liquid under pressure from the pressure chamber, the safety valve
coming into operation and the overflow pipe conveying back the liquid into the
receiving chamber immediately the liquid in the said pressure chamber attains the
determined or required pressure.
A pressure gauge at the side of the pressure chamber of the tank is used to
indicate the pressure of the liquid in the said chamber.
The improved tank and apparatus may be used for various purposes where liquids
under pressure are required to be delivered either directly from the tank or con-
veyed to a distance.
Dated this Second day of February 1895.
W. T. WHITEMAN,
Agent for the Applicant.

page_text: A New or Improved Tank and Apparatus for Supplying Liquids
under Pressure.
I, THOMAS PHILIP MARSH, of No. 18 Little Street, West Bromwich, in the
County of Stafford, Gentleman, do hereby declare the nature of my invention
and in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement :—
My invention consists of the construction and combination of parts hereinafter
described constituting a new or improved tank or apparatus for supplying liquids
under pressure either for direct delivery from the said tank or for conveyance to a
distance.
The tank and apparatus constituting my invention are applicable for use in place
of an overhead tank and generally where a tank holding liquid under pressure is
required.
The said tank and apparatus consist of the following arrangement or combination
of parts.
I take a tank of the required capacity and divide it by a cross vertical or
horizontal partition into two chambers, one of the said chambers constituting a
receiving chamber and the other a pressure chamber. In the receiving chamber
of the divided tank the liquid is placed and is forced therefrom by a force pump
into the second or pressure chamber of the tank, a pipe from the said force pump
opening into the said pressure chamber. The force pump is worked by a driving
shaft crossing the receiving chamber of the tank and turning in bearings supported
by uprights on opposite sides of the said receiving chamber. The said driving
shaft is furnished with a fly wheel and driving pulley and may be worked by a
steam engine or other motor or by hand. By the working of the force pump the
liquid in the receiving chamber is conveyed to and maintained under pressure in
the pressure chamber. An outlet pipe in the pressure chamber delivers the liquid
under pressure directly from the said chamber either in a stream or in the form of
spray cr the said outlet pipe is connected with other pipes for conveying the
liquid under pressure to a distance.
The pressure chamber of the compound tank is provided with a safety valve and
with a pressure gauge.
Figure 1 of the accompanying drawing represents in side elevation, partly in
vertical section, a tank and apparatus constructed according to my invention for
supplying liquids under pressure for various purposes; Figure 2 is a plan of the
same; Figure 3 an end elevation of the same and Figure 4 a cross section of the
same taken through the force pump and its connections.
The same letters of reference indicate the same parts in the several figures of
the drawing.
The tank which I use is divided by the horizontal partition a² into two chambers,
one above the other, marked respectively a and b, the upper chamber a constituting
the receiving chamber of the tank and the lower chamber b the pressure chamber
of the tank.
Instead of dividing the tank into two chambers by a horizontal partition as
represented it may be divided into two chambers by a cross vertical partition
at about the middle of the tank, but I prefer to use the arrangement represented
in the drawing.
In the chamber a of the divided tank the liquid to be supplied under pressure is
placed and is forced from the said chamber a into the second or pressure chamber b
by the force pump c, the dipping leg or pipe c² of which descends into and opens
near the bottom of the receiving chamber a (see Figure 4). The said dipping leg
or pipe is provided with a non-return valve opening upwards as represented.

page_text: The liquid drawn from the receiving chamber a by the force pump c is conveyed by
the piped into the pressure chamber b, that end of the supply pipe d opening into
the side of the pump barrel being provided with a non-return valve opening
upwards as represented. By the working of the force pump c the liquid in the
receiving chamber a is conveyed to and maintained under pressure in the pressure
or second chamber b.
The force pump c is worked from the cranked driving shaft e crossing the tank
and turning in bearings supported in the uprights f, f fixed to opposite sides of the
tank. The said driving shafte is driven by the band worked from a steam
engine or other motor passing over a pulley h. The shaft e is provided with a fly
wheel i.
Although I prefer to give motion to the shaft e by a steam engine or other motor
yet the said shaft may be worked by hand.
kis the outlet pipe opening into the pressure chamber b the said pipe being
provided with a screw valve l for opening and closing it. By means of the said
outlet pipe the liquid in the pressure chamber 6 can be delivered under pressure
directly from the said chamber either in a stream or in the form of spray; or, the
said outlet pipe may be connected with other pipes for conveying the liquid under
pressure to a distance.
m is the safety valve at the top of the pipe m² passing into the pressure chamber b.
The cap of the safety valve has an overflow pipe m³ situated over the receiving
chamber a of the tank so that when the pressure of the liquid in the pressure
chamber b of the tank exceeds that at which the tank is regulated to bear the
safety valve m opens and the liquid is conveyed back by the pipes m² and m³ to the
receiving chamber a as best seen in Figures 1 and 2.
Besides providing for the safety of the tank the arrangement last described
permits of the constant working of the force pump notwithstanding the non-
delivery of liquid under pressure from the pressure chamber, the safety valve
coming into operation and the overflow pipe conveying back the liquid into the
receiving chamber immediately the liquid in the said pressure chamber attains
the determined or required pressure.
A pressure gauge p connected with the pressure chamber of the tank is used
to indicate the pressure of the liquid in the said chamber.
The improved tank and apparatus described and represented may be used for
various purposes where liquids under pressure are required to be delivered either
directly from the tank or conveyed to a distance.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that I claim
as my invention ;-
The construction and combination of parts hereinbefore described and illustrated
in the accompanying drawing constituting a new or improved tank and apparatus
for supplying liquids under pressure, either for direct delivery from the tank or for
conveyance to a distance; that is to say, the combination with a tank divided by a
partition into two chambers, one chamber constituting a receiving chamber and
the other chamber a pressure chamber, of a force pump for conveying the liquid
from the receiving chamber to and maintaining it under pressure in the pressure
chamber of the tank, together with the other appliances connected with the said
divided tank substantially as described and illustrated.
Dated the Tenth day of October 1895
THOMAS PHILIP MARSH.