Improvements in Apparatus for Regulating the Flow of Fluids.
Year: 1893

page_text: Date of Application, 24th Feb., 1893
Complete Specification Left, 21st Nov., 1893-Accepted, 6th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Regulating the Flow of Fluids.
I GEORGE HENRY RICHMOND of 15 Abbey Street Greenheys Manchester in
the County of Lancaster Mechanical Engineer do hereby declare the nature of this
invention to be as follows:-
The object of this invention is the construction of an apparatus to so regulate
the flow of fluids as to enable a supply of fluid to be drawn from any receptacle
containing such fluid at a high pressure and to pass such fluid to any other
receptacle at any lower pressure.
In carrying out my invention 1 construct a by preference vertical cylinder in
which cylinder is designed to work a piston or dise such piston or disc being
connected by suitable mechanism to a valve or cock and in the case of my using a
cock prefer to use an asbestos packed one.
Through a guide in the upper end of the hereinbefore mentioned cylinder I pass
a rod one end of such rod being connected to a weighted lever or spring the other end
of such rod resting upon the piston or disc. In the place of the rod and weighted
lever or spring I sometimes use a cover to the cylinder and mount upon such cover
an escape valve weighted as desired and in this case make the piston or disc a loose
fit so as to allow of a small quantity of the fluid passing such piston or disc to the
escape valve. The action of this apparatus is as follows :-
The inlet side of the valve or cock is coupled to the receptacle containing the
fluid at the higher pressure and upon the passage of the fluid through such valve
or cock it will come in contact with the underside of the hereinbefore mentioned
piston or disc and the same will be caused to rise and so close or partially close
the valve or cock the action of the lever and weight or spring or escape valve
deciding the amount of opening through such valve or cock and such action can
be varied at pleasure the fluid will then pass to the receptacle intended with a
reduced pressure and such reduced pressure will be maintained although the
consumption or passage of such fluid may be great or small the hereinbefore
mentioned piston so controlling the valve or cock as to regulate to the greatest
nicety the passage of the fluid.
In a modification of this invention to be employed in cases where the initial
pressure is constant and where it is not necessary to alter the reduced pressure I
employ a valve having a cylinder and piston on the inlet side of and directly
underneath such valve the piston being coupled to the valve which cylinder and
piston would have such a proportion of area to the valve as would so balance the
valve as to give the reduced pressure desired. It will be obvious that I might
employ a diaphragm in place of the cylinder and piston hereinbefore described.
1
T
1002
G. H. RICHMOND.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Regulating the Flow of Fluids.
I GEORGE HENRY RICHMOND of 15 Abbey Street Greenheys Manchester in
the County of Lancaster Mechanical 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 this invention is the construction of an apparatus to so regulate

page_text: the flow of fluids as to enable a supply of fluid to be drawn from any receptacle
containing such fluid at a high pressure and to pass such fluid to any other
receptacle at any lower pressure.
In carrying out my invention I construct a by preference vertical cylinder in
which cylinder is designed to work a piston or disc such piston or disc being
connected by a suitable link to a valve or cock and in the case of my using a cock
I prefer to use an asbestos packed one.
Through a guide in the upper end of the hereinbefore mentioned cylinder I pass
a rod one end of such rod being connected to a weighted lever or spring the other
end of such rod resting upon the piston or disc. In the place of the rod and
weighted lever or spring I sometimes use a cover to the cylinder and mount upon
such cover an escape valve weighted as desired and in this case I make the piston
or disc a loose fit so as to allow of a small quantity of the fluid passing such piston
or disc to the escape valve.
The action of this apparatus is as follows:-
:-
The inlet side of the valve or cock is coupled to the receptacle containing the
fluid at the higher pressure and upon the passage of the fluid through such valve or
cock it will come in contact with the underside of the herein before mentioned piston or
disc and the same will be caused to rise and so close or partially close the valve
or cock the action of the lever and weight or spring or escape valve deciding the
amount of opening through such valve or cock and such action can be varied at
pleasure the fluid will then pass to the receptacle intended with a reduced pressure
and such reduced pressure will be maintained although the consumption or passage
of such fluid may be great or small the herein before mentioned piston so controlling
the valve or cock as to regulate to the greatest nicety the passage of the fluid. In
a modification of this invention to be employed in cases where the initial pressure
is constant and where it is not necessary to alter the reduced pressure I employ a
valve having a cylinder and piston on the inlet side of and directly underneath such
valve the piston being coupled to the valve which cylinder and piston would have
such a proportion of area to the valve as would so balance the valve as to give the
reduced pressure desired.
In order that this invention may be readily understood and carried into effect I
have hereunto annexed a sheet of drawings which I will now proceed to explain
with the assistance of the figures and letters of reference marked thereon.
Fig. 1 is a sectional elevation of my improved apparatus shewing the same when
controlled by an escape valve.
A is a verticle cylinder mounted upon the body B having working loosely in it
a piston or disc C connected to the valve D by the link E. The cylinder A being
closed in by the cover F such cover F being provided with an escape valve G.
The action of this modification of my improved apparatus is as follows:-The inlet
as shewn by the arrow is connected to the receptacle containing the fluid at the
high pressure and upon fluid being admitted the first effect is to close the valve D
by reason of the area of such valve being less than that of the piston some fluid will
now pass the piston C and accumulate underneath the escape valve G to a pressure
fixed by the amount of weight upon such valve G this will cause the valve D to
open and to pass just as much fluid as will give a pressure corresponding with that
of the escape valve and upon more or less fluid being consumed the exact quantity
required to keep up the given pressure will be allowed to pass the valve neither
more or less.
Fig. 2 is a sectional elevation and Fig. 3 a plan of a modification of my improved
apparatus when I employ a cock instead of a valve and a weighted lever instead of
an escape valve.
4
A is a cylinder having working in it a piston C such cylinder A being mounted
upon the body B of the asbestos packed cock fitted with plug D. This plug D
I connect through the levers E and F to the cross-head G and thence through the 5
rod H to the piston C the levers E being extended to receive the weights I which
weights I are designed to be moved along the levers E as required. The action of

page_text: this modification is as follows:-The inlet as shewn by the arrow is connected to
the receptacle containing the fluid at the high pressure and upon such fluid passing
the plug D and coming under the piston C such piston C is caused to rise in the
cylinder A and this closes the passage through the plug D, the piston C by its own
weight and that of the weights I is always tending to come down and open the
cock, the fluid always tending to raise the piston C and the desired position to
give the required quantity of fluid is regulated by the position of the weights I
when more pressure is required more weight is added and when less pressure is
required weight is taken off. It will be seen that a spring or springs may be
employed instead of weights I in this modification.
Fig. 4 is a sectional elevation of a modification of my improved apparatus to be
employed in cases where the high pressure is constant and where the reduced
pressure is not required to be altered.
From the body B is depended the cylinder A having the piston C working in it,
connected to the piston C by means of the link Ę is the valve D. The area of the
passage through the valve D is always greater than and bears a desired proportion
to the piston C. The action of this modification is as follows:-It is connected as
the hereinbefore mentioned modifications and upon fluid being turned on to it such
fluid will press upon the valve D and piston C but as the valve D is larger than
the piston Cthe valve D will be raised in proportion as that of the valve to the
piston, consequently a proportionate amount of fluid will be allowed to pass. As
an example:-if the valve is made with an area of one square inch and the piston
with an area of of a square inch and the high pressure is 100 lbs. on the square
inch the valve would only allow so much fluid to pass as would give a pressure
of 25 lbs. on the square inch on the outlet side of the valve and this pressure would
be maintained though the consumption were great or small the valve opening
more for a greater consumption and less for a smaller consumption.
It will be obvious that a diaphragm may be used in place of a piston in all the
modifications.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be carried into practical effect 1
wish it to be understood that I do not confine myself to the precise details relative
proportions or dimensions of the various parts hereinbefore described and illustrated
on the accompanying drawing but what I do claim is,
The combination and arrangement of mechanism as and for the purposes herein-
before described and illustrated on the accompanying drawing.
Dated this 20th day of November 1893.
G. H. RICHMOND.