IMPROVEMENTS IN WATERCLOSETS, AND IN VALVES AND REGULATING APPARATUS FOR THE SAME, AND FOR OTHER PURPOSES
Year: 1871

page_text: PROVISIONAL SPECIFICATION left by John Lupton Bolding, John
Thomas Bolding, and Joseph Titsink at the Office of the Com-
missioners of Patents, with their Petition, on the 6th January 1871.
We, JOHN LUPTON BOLDING and JOHN THOMAS BOLDING, both of
19, South Molton Street, Oxford Street, and JosЕРш TITSINK, of
28, York Street, Baker Street, both in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
WATERCLOSETS, AND IN VALVES AND REGULATING APPARATUS FOR THE SAME, AND
FOR OTHER PURPOSES," to be as follows:-
1
In constructing a watercloset according to this Invention the outlet
passage at the bottom of the pan of the closet is set into a socket at the
top of a metal box or case, at the bottom of which is an outlet connected
with the drain. The outlet passage at the bottom of the pan is closed
by a valve pressed against a suitable seating, the valve is carried by one
arm of a bent lever which turns on an axis at one side of the valve
seating. In the other arm of the lever is a slot through which passes a
pin carried by an arm standing out from a vertical stem which passes
up through a stuffing box at the top of the metal casing and is at its
upper end connected to the weighted lever to which the pull up handle

page_text: of the closet is connected, so that when the handle is pulled up the
vertical stem is drawn up with it and the lever carrying the valve is
turned on its axis, and the valve is thereby drawn down from its previous
horizontal position into a vertical position leaving the contents of the
pan free to descend vertically and without any obstruction to the outlet
at the bottom of the metal casing. To regulate the amount of water
delivered to the pan each time the handle is pulled up the stem of the
inlet valve is connected as is usual to a weighted lever which is turned
upwards, being acted upon by the weighted lever before mentioned, and
the valve is thereby opened each time the pull up handle is raised. To
the weighted lever which works the inlet valve is jointed the upper end
of a piston rod carrying a piston which is free to work up and down in
a corresponding cylinder. This cylinder is closed at the bottom and is
capable of rocking on a pin joint. Near to the bottom of the cylinder
a small hole is formed which is coned outwards, and this hole can be
more or less closed by a small conical valve formed at the end of a
screw. The piston rod is not directly connected with the piston but
passes through a hole formed through it at the centre. Above the
piston a valve is fixed on the piston rod, which, when the rod is pressed
downwards closes the passage through the piston, but when the rod is
drawn upwards the valve rises a short distance from the piston and a
projection on the piston rod then comes against the bottom of the piston
and draws the piston upwards and as the piston rises air is free to enter
through the piston into the lower part of the cylinder. When, however,
the piston rod is forced downwards the passage through the piston is
closed and the air in the lower part of the cylinder is forced out through
the small orifice at its bottom, and the speed at which the piston descends,
and consequently the time during which the inlet valve is kept open, is
governed by more or less closing this small orifice. By placing the
small orifice near the bottom of the cylinder of the regulator as herein-
before described and carrying the piston by a solid rod the apparatus
can be made very cheaply and a far smaller quantity of air is put under
compression at the time when the piston is forced downwards than when
the piston is carried by a tubular rod and the small orifice is formed at
the top of the tubular rod as in the regulating apparatus described in
the Specification of Underhay's Patent, No. 2061, in the year One
thousand eight hundred and sixty-four, and in consequence the weighted
lever which forces the piston downwards will descend gradually in place
of dropping suddenly for a distance as in Underhay's apparatus. In
•

page_text: place of forming the regulator of a cylinder and piston as above
described, a ball of elastic material enclosed in a globular metal case
may be employed, the elastic ball having an opening into it to which
is connected a small tube which passes out through the globular case
and at its upper end is fitted with an inlet valve for allowing air to enter.
the ball. The upper end of the tube is connected with the weighted
lever of the regulator in such manner that when the lever is raised it
first opens the inlet valve and then raises the tube, and the elastic ball
is then free to expand. When the weighted lever is free to descend it
closes the inlet valve and as the tube is pressed downwards the air in
the ball escapes through a small orifice near the upper end of the tube,
and the speed at which the lever descends is controlled by more or less
opening this orifice by a screw valve as in the arrangement previously
described.
In constructing ball cocks for constrolling the supply of water to the
cisterns of waterclosets and to other cisterns it has before been proposed
to employ a balanced valve, the downward pressure of water upon the
valve closing the outlet passage being balanced by the upward pressure
of the water upon a cup leather carried by the same stem as the valve
and which fits within a cylinder forming part of the body of the cock.
The top of this cylinder has usually been open and the arm which
carries the ball has been passed through a slot in the upper part of the
valve stem.
With valves constructed as above described there is however this
drawback, viz., that if the cup leather gets out of order there is a
constant leak of water through the top of the cylinder.
According to our Invention we close the top of the cylinder or
chamber in which the cup leather works and we pass the arm which
carries the ball through a slot in the lower part of the valve stem below
the valve which closes the outlet passage of the cock. By this means
we obviate all possibility of leakage occurring, even should the cup
leather get out of order.