Improvements in Flush Cisterns.
Year: 1890

page_text: Date of Application, 19th Nov., 1890
Complete Specification Left, 19th Aug., 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Flush Cisterns.
I, EDMUND WARD, of North Cottage, Charlotte Place, Clapham, Surrey,
Plumber, do hereby declare the nature of this invention to be as follows:-
This invention has for object certain detail improvements in the construction
and arrangement of cisterns for flushing closets, urinals, and other places on the
siphon system, in order to obtain a more efficient action than is usual with known
forms of flushing cisterns.
For the purpose of my invention, I make the shell of the cistern with a flat
back and half round, or other shape of belly with projecting flanges to enable the
cistern to be secured to a wall instead of on brackets in the usual manner.
The lower part of the cistern has a "well" centrally arranged, into which the
down flow pipe is inserted, this having an upper portion to be within the siphon
bell to just above the fixed water level governed by the float ball and inlet
valve.
Between the upper part of the down flow pipe and the bell, is an intermediate
pipe provided at the lower part with a ring suction valve, which covers apertures
in a kind of box when down in place but which when lifted permits of a sufficient
quantity of water to leave the bottom of the cistern and break the siphon for
positive flush.
The shell of the cistern has a partition near each end and is prepared for the
reception of the inlet or ball tap at either end for right or left hand supply.
Dated this 19th day of Noramba. 1900
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Edmund Ward.
COMPLETE SPECIFICATION.
Improvements in Flush Cisterns.
I EDMUND WARD of North Cottage, Charlotte Place, Clapham, Surrey,
Plumber, do hereby declare the nature of my invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention has for object certain improvements in the construction and
arrangement of cisterns for flushing closets, urinals and other places on the syphon
system in order to obtain a more efficient action than is usual with known forms
of flushing cisterns.
My invention will be understood by referring to the annexed drawings.
Figure 1 is a longitudinal sectional elevation of a closet flush cistern with stand
up guide pipe arrangement.
Figure 2 a similar elevation of cistern with down looking guide pipe
arrangement.
A, is the casing with flat back and provided with lugs B, B, for securing it to
a wall direct by nails or other holdfasts instead of supporting it on props as by
the present method.
The lower part C of my casing is tapered and terminates in a kind of well at C
within which is a socket tube D, this not only serving for the attachment of the
down flow but as a seat for the valve E to rest on, said valve (india rubber
washer) being secured between a nut F and a flange plate G which is secured to
the bell H by screws I, I.

page_text: The nut F also secures the guide pipe J so that the bell, the nut and the
guide pipe lift as one article when the lever K is acted upon by the pull chain L.
N, is the down flush tube rigidly fixed in the socket D by the cross bars M.
P, P, are pockets, one at each end of the cistern provided with apertures for a
valve stem according to the side at which the supply of water to the cistern
is to be furnished. The stem has a valve R connected by a short chain to the
lever K so that when the lever is pulled down the valve R becomes closed over
the apertures in the bottom of the pocket to keep the supply cock closed during
the flushing operation and to retain a small quantity of water for resealing the
valve E after the flush is completed.
The lever K is carried by a cross bar S which can be shifted to either side, and
received in either recesses T formed in the top edge of the cistern.
Each end of the cistern is alike and provided with holes for the reception of the
supply cock U the nozzle V of which in the figure shown, is at an angle so that
the water can enter and fill the cistern without making a bubbling noise.
The supply cock U has a straight passage through it for the ready removal of
any grit or other obstacle which prevents the proper working and I close the
passage by a screw or end cap W. Z is the lid or cover.
The supply tap acts automatically in the well known manner by the fall of the
ball X due to the reduced level of the water and closes the tap automatically as
the water rises.
Slight changes of some parts shown in Figure 1 are illustrated in Figure 2.
For instance the guide pipe J is shorter and its flange M constitutes the nut F
and instead of the down flush tube N being affixed to the cross bar M the guide
tube J has free guiding motion in it, the valve R being employed to stop the
passage of water from flowing into the main part of the cistern during the flushing
operation: I by the link Y hold the ball x up.
The end boxes or pockets P, P, are dispensed with which reduces the number
of pieces, the weight and the cost of production besides making the syphon cistern
more efficient in its action and the more readily accessible for repairs especially
when the main valve E has to be removed.
Nearly all closet flush cisterns in dwelling houses are fitted high up and in the
most unaccessible and awkward places and a new main valve can only be put in
after taking the cistern down from its supports, which necessitates 1 disconnecting
the water supply 2 breaking the down flow pipe joint whereas by my invention,
according to Figure 2, after removing the lid Z and the pin connecting the lever
to the bell, the bell H, the valve E, guide tube J, down flush tube N, in fact
all the parts constituting the syphon can be removed bodily and be replaced with
facility.
My invention is what might be termed, a drop valve positive action syphon.
In action this cistern is nearly silent and swift with the slightest pull of handle;
it will also flush with the cistern half full of water.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1. The construction of cisterns with positive syphonic action, the parts being
arranged as shown at Figure 1 of the annexed drawings, also the modified
arrangement shown at Figure 2.
2. The combination of bell H, valve E, movable tube J or N the whole moving
bodily from a scating D as and for the purposes described.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Edmund Ward.