Improved Apparatus for Regulating the Quantity of Fluid Supplied to a Closed Vessel, Reservoir or Container.
Year: 1897

page_text: Improved Apparatus for Regulating the Quantity of Fluid Supplied
to a Closed Vessel, Reservoir or Container.
I, JOSEPH PRESTWICH, of Elm Bank, 72, Eccles Old Road, Eccles, in the County
of Lancaster, Manager, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to provide a portable self contained and inter-
changeable appliance to regulate the quantity of fluid supplied to a closed vessel
reservoir or container.
The invention consists of a valve suitably supported by a cage or the like in
a valve casing, a tube being fixed or fitted beneath the cage open at both ends the
upper end opening into the bottom of the valve casing, and in the upper part of
the latter a suitable valve seating being fitted, the valve casing or the upper part
of the tube being provided with a screw thread and shoulder or other means for
securing it air tight to an opening or bored pap or stuffing box in the top of the
vessel to which it is to be applied.
The valve is made of such material (or is otherwise so arranged) as to float on
the fluid to be supplied to the vessel and for this purpose I propose to use a rubber
ball, which may be hollow.
Above the valve a tube is fitted to act as an overflow and alarm in case of accident.
This appliance having been screwed into the top of the vessel reservoir or con-
tainer as above described, the action of the apparatus is as follows:-
As soon as the desired fluid which may be under pressure is admitted into the
vessel the level of the same rises above the open mouth of the tube which extends
downwards into the vessel, and is of such length and diameter that as the fluid
still enters the vessel it is compelled by the resistance of the air in the upper part
of the vessel or container to rise in the tube and raise the valve in the casing
above described against its seating; this closes all egress of air from the vessel
and the compression of the air in the vessel becomes equal to the pressure on the
inflowing fluid, and stops further supply.
In case the valve did not work the fluid would flow out of the tube above the
seating and show that something was amiss.
The length of the tube in the vessel determines the amount of fluid entering at
one time into the said vessel.
This tube can be interchangeable, but it is as easy and economical to make the
appliances with tubes of such length that they can be cut down to admit any

page_text: desired amount of fluid to the vessel, if such amount is not likely to vary when
once ascertained and provided for.
Dated this 3rd day of December 1897
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.
Improved Apparatus for Regulating the Quantity of Fluid Supplied
to a Closed Vessel, Reservoir or Container.
I, JOSEPH PRESTWICH, of Elm Bank, 72, Eccles Old Road, Eccles, in the County
of Lancaster, Manager, 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 this invention is to provide a portable self contained and inter-
changeable appliance to regulate the quantity of fluid supplied to a closed vessel
reservoir or container.
The nature of my invention and the manner in which the same is to be or may
be carried into practical effect will be readily understood from the following
description on reference to the accompanying drawings, of which Fig. 1 is an
elevation half in section of one of my improved apparatus detached and Fig. 2
is an elevation partly in section and drawn to a smaller scale of a vessel or reser-
voir with my improved apparatus applied thereto.
The drawing shews at the bottom of the vessel or reservoir a tube f¹ which is
connected to a valve such as that for which I have applied for Letters Patent
No. 28,675 of 1897, bearing even date herewith, or similar valve which acts both
as an inlet and a flushing valve as desired.
The invention consists of a valve a suitably supported by a cage or the like b
in a valve casing c, a tube d being fixed (or fitted by screwing as shewn) beneath
the cage
b open
at both ends, the upper end opening into the bottom of the valve
casing c, and in the upper part of the latter a suitable valve seating c¹ is fitted,
the valve casing c (or the upper part of the tube) being provided with a screw
thread at and shoulder, or other means for securing it air tight to an opening
or bored pap e (or stuffing box) in the top of the vessel f to which it is to be
applied.
The valve a is made of such material (or is otherwise so arranged) as to float
on the fluid to be supplied to the vessel and for this purpose I propose to use a
rubber ball, which may be hollow.
Above the valve a a tube g is fitted to act as an overflow and alarm in case of
accident.
This appliance having been secured to the top of the vessel reservoir or con-
tainer as above described, with the tube d projecting down into the vessel or
reservoir f, the action of the apparatus is as follows:-
As soon as the desired fluid which may be under any desired pressure is admitted
into the vessel f the level of the same rises above, the open mouth of the tube d
which as before stated extends downwards into the vessel, and is of such length
and diameter that as the fluid still enters the vessel f it is compelled by the resis-
tance of the air in the upper part of the vessel or container to rise in the tube d
and raise the valve a in the casing c above described against its seating c¹; this
closes all egress of air from the vesself and the compression of the air in the

page_text: vessel becomes equal to the pressure on the inflowing fluid, and stops further
supply.
In case the valve a did not work the fluid would flow out of the tube g above
the seating and show that something was amiss.
The length of the tube d in the vessel f determines the amount of fluid entering
at one time into the said vessel.
This tube d can be interchangeable, but it is as easy and economical to make
the appliances with tubes of such length and so marked if required that they can
be cut down to admit any desired amount of fluid to the vessel, if such amount is
not likely to vary when once ascertained and provided for..
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I wish it to be under-
stood that I am aware of Letters l'atent, No. 3267 of 1896 and No. 24219 of 1897
both granted to Daniel Hurst, and that I claim nothing described and claimed in
the Specifications of the said Letters Patent, but I declare that what I claim is:-
A portable and removable appliance. for regulating the supply of fluid under
pressure to a closed vessel or reservoir constructed substantially as hereinbefore
described.
Dated this 2nd day of September 1898.
GEO. DAVIES & SON,
Agents for the Applicant,
4, St. Ann's Square, Manchester.