IMPROVEMENTS IN APPARATUS FOR REGULATING THE DRAWING OFF OF WATER AND OTHER FLUIDS
Year: 1856

page_text: LETTERS PATENT to Thomas Lambert, of the New Cut, Lambeth, for the
Invention of "IMPROVEMENTS IN APPARATUS FOR REGULATING THE DRAWING
OFF OF WATER AND OTHER FLUIDS."
Sealed the 23rd May 1856, and dated the 4th March 1856.
PROVISIONAL SPECIFICATION left by the said Thomas Lambert at the
Office of the Commissioners of Patents, with his Petition, on the 4th
March 1856.
I, THOMAS LAMBERT, of the New Cut, Lambeth, do hereby declare the
nature of the Invention for "IMPROVEMENTS IN APPARATUS FOR REGULATING THE
DRAWING OFF OF WATER AND OTHER FLUIDS" to be as follows:-
This Invention has for its object improvements in apparatus for regulating
the drawing off of water and other fluids. For this purpose, the barrel of the
cock or apparatus. has a valve, capable of being pressed on to two seats, at a
distance from each other, in such manner as to prevent more than a deter-
mined quantity of water or other fluid passing, notwithstanding the handle or
instrument (which puts 'the apparatus in action) continuing to be acted on.
The water or other fluid is stopped for the most part from flowing from the
main or other source when the valve in the barrel is brought to press on
the second seat, the valve being at other times (when free) pressed up to its
first seat by the pressure of the fluid acting on a piston or diaphragm (on the

page_text: stem of the valve) of larger diameter than the valve. The water or other
fluid is admitted to the barrel at a position intermediate of the valve and the
piston, so that the fluid is at all times pressing on both the piston and the
valve, the valve will therefore be closed on its first seat except when there is
pressure or action on the handle or instrument of the apparatus. In addition
to the water or fluid pressing on the piston in the barrel, it is allowed to
pass in a separate passage to a chamber beyond the piston in the barrel, and
to act on and press a small piston on the stem of a small valve, which closes
a hole in the partition between the chamber and the barrel in such manner as
at all times to keep such valve closed, except when the stem of this valve is
pressed on by a suitable handle or instrument. By this combination or
arrangement of apparatus, when the small valve is opened the pressure. of
water or fluid is allowed to take place at the back of the piston in the barrel,
which will move the piston and open the valve in the barrel, and the fluid will
pass out freely till the valve in the barrel arrives at its second seat, when the
flow will be stopped, and the water at the back of the piston will escape
through the stem of the valve or through a separate passage.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Lambert in the Great Seal Patent Office on the
4th September 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
LAMBERT, of the New Cut, Lambeth, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of March, in the year of our Lord One
thousand eight hundred and fifty-six, in the nineteenth year of Her reign, did,
for Herself, Her heirs and successors, give and grant unto me, the said
Thomas Lambert, Her special licence, that I, the said Thomas Lanibert, my
executors, administrators, and assigns, or such others as I, the said Thomas
Lambert, my executors, administrators, and assigns, should at any time agrée
with, and no others, from time to time, and at all times thereafter during the
term therein expressed; should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS FOR
REGULATING THE DRAWING OFF OF WATER AND OTHER FLUIDS," upon the condition
(amongst others) that I, the said Thomas Lambert, my executors or adminis

page_text: trators, by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six calendar
months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Lambert, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
This Invention has for its object improvements in apparatus for regulating
the drawing off of water and other fluids. For this purpose, the barrel of the
cock or apparatus has a valve, capable of being pressed on to two seats at a
distance from each other in such manner as to prevent more than a deter-
mined quantity of water or other fluid passing, notwithstanding the handle or
instrument (which puts the apparatus in action) continuing to be acted on.
The water or other fluid is stopped for the most part from flowing from the
main or other source when the valve in the barrel is brought to press on
the second seat, the valve being at other times (when free) pressed up to its
first seat by the pressure of the fluid acting on a piston or diaphragm (on the
stem of the valve) of larger diameter than the valve. The water or other
fluid is admitted to the barrel at a position intermediate of the valve and the
piston, so that the fluid is at all times pressing on both the piston and
the valve, the valve will therefore be closed on its first seat except when there
is pressure or action on the handle or instrument of the apparatus. In addi-
tion to the water or fluid pressing on the piston in the barrel, it is allowed to
pass in a separate passage to a chamber beyond the piston in the barrel, and
to act on and press a small piston on the stem of a small valve, which closes
a hole in the partition between the chamber and the barrel in such manner as
at all times to keep such valve closed, except when the stem of this valve is
pressed on by a suitable handle or instrument. By this combination or
arrangement of apparatus, when the small valve is opened the pressure of
water or fluid is allowed to take place at the back of the piston in the barrel,
which will move the piston and open the valve in the barrel, and the fluid will
pass out freely till the valve in the barrel arrives at its second seat, when the
flow will be stopped, and the water at the back of the piston will escape
through the stem of the valve or through a separate passage.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.

page_text: DESCRIPTION OF THE DRAWING.
Figure 1 shows an apparatus in section, suitable for regulating, the drawing
off of water or other liquids when the pressure is moderate. a is the inlet to
the apparatus; b is the outlet; c is a passage leading from the inlet a to, the
back of the small valve d, which at its upper end has the button or handle e
fixed to it; f is a disc of vulcanized india-rubber, fixed in the centre, to the
stem of the valve d, and at its outer circumference between the flanches, as
shewn; hence, when the button or handle is not pressed on; the water or fluid,,
by pressing on the under surface of the disc. of india-rubber, raises the valve
to its seat, d; when, however, the button or handle e is pressed on, the valve d
is moved from its seat, and the water or fluid passes through the valve seat.d!
and presses on the back or upper surface of the flexible piston or diaphragm g,.
which is by preference of vulcanized india-rubber. By such means, the.
pressure. of water or other fluid will now be on both sides of the diaphragm g,
and the pressure of the water or fluid previously only acting against or
pressing on the under side of the valve or disc g,, will be counterbalanced,
and admit of the pressure of the water or fluid acting on the valve h to open.
that valve, and so long as the valve, h is descending, and the seat or passage
i, i, is open, the water or fluid will flow to the outlet 6 from the inlet a; but
when the valve j comes down and closes the passage i, i, the flow of water or
fluid to the outlet will be stopped, notwithstanding that the button or handle e
is still depressed; and in order to obtain a further flow of water or fluid
through the apparatus, the button or handle e must be allowed to move back,
which it will do when released from exterior pressure, by reason of the
pressure of the water or fluid acting against the under side of the disc or
diaphragm f, which will cause the valve d to be closed. against its seat;. when
the pressure of the water or fluid. being now no longer on, the back or. upper
surface of the disc or diaphragm g, the pressure thereof on the under side of
that diaphragm will cause the valve h to be raised to its seat, and the outlet
passage will be stopped, and will remain stopped till the valve dis again
opened by pressing on the handle or button e. The stem of the valve h is
hollow, and has a small outlet, at its lower end, by, which. the water or fluid-
above the disc or diaphragm g may get away when. that, disc is pressed
upwards.
1
Figure 2 shows the section of another arrangement of the apparatus, more
suited for water or fluids at a greater pressure, but the action is like that
described in the previous Figure. a is, the inlet passage; b is the outlet

page_text: passage; c is a passage for the water or fluid to pass to the valve d, which
has a handle or button e fixed to it, which is pressed outwards by a spring;
f is a disc of vulcanized india-rubber; h¹ is the hollow stem of the valve h
and of the valve j, which valves act as in the previous arrangement in closing
the passage i. The upper end of this stem h¹ has fixed on it a cupped
piston g, of leather or suitable flexible material, in place of the diaphragm g,
before described.
Figure 8 shows another arrangement, which is suitable for water-closets;
and the chief difference in this arrangement from that shewn at Figure 2 is,
that the valve j is not employed. k is a weighted lever, which on being raised
opens the valve d, when the water acting on both sides of the piston g allows
the pressure of the water on the valve h to open that valve, and the flow
through the outlet b will continue so long as the lever is lifted, and the
flow will continue for a time after the lever has descended and closed the
valve d.
Having thus described the nature of my said Invention, and the manner of
performing the same, I would have it understood that I make no claim to any
of the parts separately, and the details may be varied without departing from
my Invention; what I claim is the mode herein described of combining the
parts.
In witness whereof, I, the said Thomas Lambert, have hereunto set my
hand and seal, this Third day of September, in the year of our Lord
One thousand eight hundred and fifty-six.
25 Witness,
HENRY W. CARPMAEL.
THOS LAMBERT. (L.S.)