IMPROVE- HENTS IN APPARATUS FOR DRAWING OFF WATER OR OTHER FLUIDS
Year: 1863

page_text: LETTERS PATENT to Thomas Lambert, of Short Street, Lambeth, in the
County of Surrey, Hydraulic Engineer, for the Invention of "IMPROVE-
HENTS IN APPARATUS FOR DRAWING OFF WATER OR OTHER FLUIDS."
Sealed the 7th July 1863, and dated the 22nd January 1863.
PROVISIONAL SPECIFICATION left by the said Thomas Lambert at the
Office of the Commissioners of Patents, with his Petition, on the 22nd
January 1863.
I, THOMAS LAMBERT, of Short Street, Lambeth, in the County of Surrey,
Hydraulic Engineer, do hereby declare the nature of the Invention for
"IMPROVEMENTS IN APPARATUS FOR DRAWING OFF WATER OR OTHER FLUIDS," to be
as follows:-
This Invention has for its object improvements in apparatus for drawing off
water and other fluids.
For these purposes, in constructing apparatus or taps for drawing off water
or other fluids according to my Invention, one end of the barrel is made with
a screw or otherwise suitable to be fixed to a pipe or other source of supply in
the ordinary manner. At the other end a suitable valve chamber is formed
or applied the opening into which is covered by a valve which is preferred to

page_text: be covered with a suitable yielding and elastic material. Over the valve chamber
is a hollow cover which communicates with the valve chamber. This hollow
cover has a flange at the end or part where it is connected to the valve chamber
of the barrel. The hollow cover is fixed to the valve chamber by a clamping
hollow plate, through which there is a hole suitable for the passage of the
The clamping plate when fixed to the valve chamber or barrel
presses on the flange of the hollow cover in such manner as to attach the
hollow cover to the valve chamber or barrel, but so as to allow the hollow
cover to rotate or turn partly round. The valve spindle or stem is formed with a
screw thereon, and the piston is prevented turning in the valve chamber.
On the interior of the hollow cover is fixed or formed a screw nut which
works on the screw on the spindle or stem of the valve; the spout or
tubular passage through which the water or other liquid is discharged is
or formed on the hollow cover and is a branch therefrom
which serves as a handle to turn the hollow cover and thus to open and shut
the valve. It is not essential that the spindle or stem of the valve should be
formed with a complete screw, though such is preferred to be the case, as by
its having an inclined thread or groove, so long as the nut carried by the
hollow cover is made agreeable thereto, the same lifting and closing of the
valve by the turning of the hollow cap will result.
fixed to
In some cases, particularly where there is a considerable pressure, it is
desirable to have two valves, or a valve and a flexible diaphragm on the valve
spindle or stem, as bas heretofore been the case in some forms of taps or appa-
ratus for drawing off liquids, in order that the pressure on one of the valves
or flexible diaphragms may counterbalance the pressure on the valve, which
is opened or closed to allow of or stop the passage of the water or other fluid
to the outlet or branch pipe from the hollow cover, which as before explained
forms the handle by which the hollów cover is moved..
SPECIFICATION in pursuance of the conditions of the Letters Patent; filed
by the said Thomas Lambert in the Great Seal Patent Office on the 22nd 3
July 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
LAMBERT, of Short Street, Lambeth, in the County of Surrey, Hydraulic
Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters 3
Patent, bearing date the Twenty-second day of January, in the year of our Lord

page_text: One thousand eight hundred and sixty-three, in the twenty-sixth 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
Lambert, my executors, administrators, and assigns, or such others as I, the
said Thomas Lambert, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after 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 DRAWING OFF WATER OR OTHER FLUIDS," upon the condition
(amongst others) that I, the said Thomas Lambert, my executors or admini-
strators 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 drawing off
water or other fluids.
For these purposes, in constructing apparatus or taps for drawing off water.
or other fluids according to my Invention, one end of the barrel is made with
a screw or otherwise suitable to be fixed to a pipe or other source of supply in
the ordinary manner. At the other end a suitable valve chamber is formed
or applied, the opening into which is covered by a valve which is preferred to
be covered with a suitable yielding and elastic material. Over the valve
chamber is a hollow cover which communicates with the valve chamber. This
hollow cover has a flange at the end or part where it connected to the valve
chamber of the barrel. The hollow cover, is fixed to the valve chamber by a
clamping hollow plate, through which there is a hole suitable for the passage
of the hollow cover. The clamping plate when fixed to the valve chamber or
barrel,
1.presses on the flange of the hollow cover in such manner as to attach
the hollow cover to the valve chamber or barrel, but so as to allow the hollow
cover to rotate or turn partly round. The valve spindle or stem is formed
with a screw thereon, and the piston is prevented turning in the valve chamber.
On the interior of the hollow cover is fixed or formed a screw nut which works

page_text: on the screw on the spindle or stem of the valve. The spout or tubular
passage through which the water or other liquid is discharged is fixed to or
formed on the 'hollow cover and is a branch therefrom which serves as a handle
to turn the hollow cover and thus to open and shut the valve. It is not
essential that the spindle or stem of the valve should be formed with a com-
plete screw, but such is preferred to be the case, as by its having an inclined
thread or groove, so long as the nut carried by the hollow cover is made
agreeable thereto, the same lifting and closing of the valve by the turning of
the hollow cap will result.
In some cases, particularly where there is a considerable pressure, it is
desirable to have two valves, or a valve and a flexible diaphragm on the valve
spindle or stem, as has heretofore been the case in some forms of taps or
apparatus for drawing off liquids, in order that the pressure on one of the
valves or flexible diaphragms may counterbalance the pressure on the valve,
which is opened or closed to allow of or stop the passage of the water or other
fluid to the outlet or branch pipe from the hollow cover, which as before ex-
plained forms the handle by which the hollow cover is moved.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a section of a cock or tap for drawing off liquids arranged
according to my Invention.
a, a, is the barrel; 6 is the valve chamber; c is the valve having an elastic
surface where it comes on to the seat e. The valve or piston c is prevented
turning by means of the horns or projections d, d, which are guided in grooves
f, f, formed in the valve chamber; g is a hollow cover with flanges, and it is
secured to the body or barrel by means of a clamping plate / through which
the upper part of the hollow cover passes. The hollow cover has a screw nut i
fixed therein with openings for the passage of the fluid from the valve chamber
into the hollow cover. The valve or piston c has a screw stem c¹ fixed thereon
which passes through the screw nut i. The hollow cover is turned by the
outlet or spout j, which serves also as a handle by which the valve c is moved.
Figure 2 shows the section of another cock or tap, wherein in addition to the
parts above described there is a flexible diaphragm k, which is applied in order
to balance the tendency of the pressure of the fluid to force the valve c open;
in other respects this cock or tap consists of a like combination of the same
-parts as those described in respect to Figure 1. It should be stated that the

page_text: forms of the bodies or barrels of the cocks or taps may be varied, and such is
also the case in respect to the valves.
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, but I claim the combined arrangements herein
described.
In witness whereof, I, the said Thomas Lambert, have hereunto set my
hand and seal, this Twenty-first day of July, in the year of our Lord
One thousand eight hundred and sixty-three.
THOMAS LAMBERT. (L.S.)