Improvements in Flushing Apparatus for Water-closets, Urinals, and the like.
Year: 1885

page_text: PROVISIONAL SPECIFICATION.
Improvements in Flushing Apparatus for Water-closets, Urinals,
and the like.
I, FREDERICK JOHN HENDERSON of 5 Kenmure Road, Hackney, in the County
of Middlesex, Sanitary Engineer do hereby declare the nature of the said invention
for "IMPROVEMENTS IN FLUSHING APPARATUS FOR WATER-CLOSETS, URINALS, AND
THE LIKE to be as follows:-
This invention relates to that class of apparatus for flushing water-closets,
urinals, and the like, in which valves known as waste-preventing valves are
employed. These well known valves are so constructed that after having been
raised to allow the passage of water, they fall back on to their seats automatically
after a predetermined period of time, and thus prevent the further flow of water,
even though the handles or other instruments by which such valves have been
raised are not returned to their normal positions. The waste-preventing valves
described and shown in the specification and Drawings of the English Letters
Patent granted to Philip John Davies, bearing date the 18th day of March
A.D. 1876 No. 1179, which Letters Patent were assigned to me by deed of
assignment bearing date the 7th day of August A.D. 1876 and duly registered at
the Great Seal Patent Office which valves are known in the trade as the "Triton"
valves, are specially applicable for the carrying out of my present invention, which
has for its object the obtaining of an automatic and positive "after-flush." Various
devices have been heretofore employed for this purpose, but they are all, so far as
I am aware, more or less imperfect in action and too costly in construction to admit
of their general use.
"
According to my present invention, two waste-preventing valves of the kind
hereinbefore referred to, are fitted in the flushing cistern, one at or near the bottoin
thereof in the usual way, and the other at any required height above the level of
the first, and arranged so as to close the end of a pipe or passage which com-
municates between the upper part of the cistern and the part of the flushing pipe
situated below the first named valve. These valves are connected together by
levers, chains or other suitable devices in such manner that when the operator
pulls the handle or other actuating instrument, the second above mentioned waste
preventing valve is raised from its seat and water is thereby allowed to flow down
the pipe or passage with which it is connected, until the level of the top of such
[Price 8d1

page_text: pipe or passage is reached, or until the loose portion of the waste preventing valve
being no longer covered by the water is caused to fall on account of air being
admitted, for example, to the underside of the sucker in the valve. The first flush
is thus effected and no more water will flow, even if the operator continues to hold
the handle or other actuating instrument in the same position; but as soon as the
said handle or other actuating instrument is released, the upper valve is returned
into its normal position, and the valve at or near the bottom of the cistern is
opened and water is allowed to flow through until its levél reaches that of the seat
of the said lower valve, or until the uncovering of the loose portion thereof is
effected, as before explained with reference to the upper valve, or if desired, either
or both of the said valves may be regulated so as to fall and close the flushing pipe
within any required interval of time from the moment of opening the said valves
or either of them.

page_text: Improvements in Flushing Apparatus for Water-closets, Urinals,
and the like.
I, FREDERICK JOHN HENDERSON of 5 Kenmure Road, Hackney, in the County
of Middlesex, Sanitary 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, reference being had to the accom-
panying sheet of Drawings and to the letters and figures marked thereon:-
This invention relates to that class of apparatus for flushing water-closets,
urinals, and the like, in which valves, known as waste-preventing valves, are
employed. These well known valves are so constructed that, after being raised to
allow the passage of water, they fall back on to their seats automatically after a
pre-determined period of time, and thus prevent the further flow of water, even
though the handles or other instruments by which such valves have been raised are
not returned to their normal positions. The waste-preventing valves described and
shown in the Specification and Drawings of the English Letters Patent granted to
Philip John Davies, bearing date the 18th day of March A.D. 1876 N° 1179, which
Letters Patent were assigned to me by deed of assignment bearing date the 7th day
of August A.D. 1876 and duly registered at the Great Seal Patent Office, which
valves are known in the trade as the "Triton" valves, are specially applicable for
the carrying out of my present invention, which has for its object the obtaining of
an automatic and positive "after-flush." Various devices have been heretofore
employed for this purpose, but they are all, so far as I am aware, more or less
imperfect in action, and too costly in construction to admit of their general use.
'
In the Drawings hereto annexed, Figure 1 is a sectional elevation, Figure 2 a
plan, and Figures 3, 4 and 5 diagrams illustrative of the action of an "after-flush"
apparatus constructed in accordance with my present invention. Two waste-
preventing valves A B of the kind hereinbefore referred to, are fitted in the
flushing cistern C, the one A at or near the bottom thereof covering the end of the
flushing pipe E in the usual way, and the other B at any required height above
the level of the first, and arranged so as to close the end of a pipe or passage D
which communicates between the upper part of the cistern C and the part of the
flushing pipe E situated below the valve A. These valves are connected together
by a lever F and links G, or other suitable devices in such manner that when the
operator pulls the handle or other actuating instrument in connection with the eye
or loop H, the waste-preventing valve B is raised from its seat by its sucker B¹
and water is thereby allowed to flow down the pipe or passage D with which it is
connected until its level falls to the top of such pipe or passage, or until the waste-
preventing valve B, being no longer covered by the water, is caused to fall to its
seat on account of air being admitted to the underside of the sucker B' through a
leakage hole or otherwise. The first flush is thus effected, and no more water will
flow, even if the operator continues to hold the handle or other actuating instru-
ment in the same position; but as soon as the said handle or other actuating
instrument is released, the counterbalance weight F¹ falls and the valve B with its
sucker B is lowered into its normal position, if it has not already fallen back into

page_text: "
it, or if it has previously fallen to its seat its sucker B₁ is returned on to it in
readiness for another action; the release of the actuating instrument and fall of
the weight F causes the valve A to be raised from its seat by its sucker A¹ and
the water left in the cistern C is allowed to flow through the pipe E until its level
reaches that of the seat of the said valve A, or until the uncovering of the valve A,
as before explained with reference to the valve B, allows the said valve A to fall
and close the outlet to the flushing pipe E, or, if desired, either or both of the said
valves may be regulated so as to fall and close the flush pipe within any required
interval of time from the moment of opening the said valves, or either of them,
whether they become uncovered with water or not.
The diagram Figure indicates the parts in their normal positions, that is to
say, with the valve A closed and its sucker A¹ raised, and the valve B closed with
its sucker B¹ lowered on to it ready for the next action. The diagram Figure 4
indicates the positions of the parts after the actuating instrument has been
operated, that is to say, with the valve B raised by its sucker B¹ so as to allow of
the passage down the pipe D of the water above the top of the pipe D which water
forms the first flush, and the sucker A! lowered on to its valve A ready to raise the
same when the actuating instrument shall be let go. And the digram Figure 5
indicates the positions of the parts after the actuating instrument has been let go,
that is to say, with the valve B and its sucker B¹ lowered and the valve A with its
sucker A¹ raised so as to allow of the passage down the flushing pipe E of the
water above the top of that pipe which water forms the "after-flush." The
diagram Figure 3 shows the parts in the same positions as in Figure 5, but with
the valve A detached from its sucker A' and closed to its seat so as to prevent the
further passage of water down the flushing pipe E, when the cistern is refilled,
until the actuating instrument is again operated.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The arrangement of two waste-preventing valves of the kind described as
"sucker" valves in the specification of the Patent No 1179 A.D. 1876 at different
levels in a water cistern, such valves being connected together and operated
alternately so as to cause firstly, the ordinary flush, and secondly, the "after-flush"
as hereinbefor described, and illustrated in the Drawings hereto annexed.