Improvements in Flushing Cisterns.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Flushing Cisterns.
I, WILLIAM TORDOFF, of 4, Meadow Lane, Leeds, in the County of York,
House Furnisher, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to construct flushing cisterns in such a manner
that they remain empty in their normal condition, but when they are required to
discharge a certain amount of water to effect a flushing operation, the water is
admitted and-discharged, leaving the cistern empty until again required for use.
According to my invention, I employ a cistern having a ball cock for the pur-
pose of admitting water when the ball is in the down position. A tumbler cr
weight is mounted on the upper part of the cistern, and it is connected to the ball
cock in such a manner that when the tumbler is thrown over its centre, it sup-
A valve at the base of the cistern is
ports the ball and keeps the cock closed.
connected to the shaft carrying the tumbler in such a manner as to be lifted on
the latter being tilted, but when the tumbler tends to keep the inlet valve open
An arm is pro-
the tumbler presses on the flushing valve and keeps it closed.
vided in connection with the tumbler and a pull cord or chain is connected to the
arm, in such a manner that on the cord being pulled the tumbler is rocked over
its centre, and the ball is allowed to fall.
When it is required to make a flush, the cord is pulled, thus throwing the
tumbler over its centre which action closes the flushing valve and allows the ball
to fall. The water thus enters the cistern, until it raises the ball and in so doing
the tumbler is again tilted into its normal position, which action raises the valve
at the base of the said cistern and causes the flush to take place.
1000
Improvements in Flushing Cisterns.
I, WILLIAM TORDOFF, of 4, Meadow Lane, Leeds, in the County of York,
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:-
-
n Anahing sisterne in such a manner

page_text: that they remain empty in their normal condition, and when they are required to
discharge a certain quantity of water to effect a flushing operation, the water is
admitted and discharged, leaving the cistern empty until again required for use.
According to my invention, I employ a cistern having a ball cock for the pur-
pose of admitting water when the ball is in the down position. A tumbler or
weight is mounted on the upper part of the cistern, and it is connected to the ball
cock in such a manner that when the tumbler is thrown over its centre, it sup-
ports the ball and allows the cock to close. A valve at the base of the cistern
is connected to the shaft carrying the tumbler in such a manner as to be lifted
on the latter being tilted, but when the tumbler tends to keep the inlet valve
open the said tumbler presses on the flushing valve and keeps it closed. A pull
cord or chain is connected to the tumbler in such a manner that on the cord
being pulled the tumbler is rocked over its centre, and the ball is allowed to fall.
In order that my invention may be clearly understood, I will proceed to describe
the same with reference to the accompanying drawing, in which similar letters
of reference refer to like parts in both figures.
Figure 1 is a sectional elevation of a flushing cistern constructed according to
my invention, and Figure 2 is a plan of the same apparatus.
A is the cistern, which may be constructed of wood lined with lead or of iron
as found most desirable, and B is a cock which is opened and closed by the rise
and fall of the ball C operating the ball cock lever I). A tumbler E is mounted
on a rocking shaft F carried in bearings F situated on opposite, sides of the
cistern A, and F2 is a projection which through the medium of a projection E
limits the movement of the tumbler E. G is a valve carried on a jointed rod H,
and the upper part of the rod H is forked at J, a stud J making the forked
portion into a rectangular slot through which the lever I passes, in such a manner
that when the lever D is raised the valve G is raised from its seat, and when the
lever is depressed the valve G is first lowered and the lever D then comes against
the lower part of the fork J and presses the valve G onto its seat. K is an arm
situated on the rocking shaft F, and L is a connecting link which communicates
the movements of the tumbler E to the lever D), and M is a pull chain fastened
to a lug M on the tumbler E and passing over a pulley M² on the cistern end.
N is a tip bucket fulcrumed at P¹ to a bracket P', and the said bucket N is situated
immediately below the cock B and has a lip N', which, when the parts are in
their normal position as seen at Figure 1, would lead any leakage from the cock B
to a hopper R and thence to the outside by way of a waste pipe R'. The bucket N
is connected by means of a connecting rod S to an arm T on the rocking shaft F,
so that the movements of the tumbler E are imparted to the said bucket N which
is thus caused to be held beneath or taken away from the cock B according to the
position of the various parts.
When the parts are in their normal position as seen in the drawing, the
tumbler E rests with its projection El resting on the projection F2, and the rock-
ing shaft F being held by the tumbler E keeps the ball C and the valve G in the
up position and the bucket N up to the cock B so as to lead any leakage to the
overflow pipe R¹. On the chain M being pulled, the tumbler E is pulled over its
centre thus rocking the shaft I together with its arms K and T. The arm K in
its movement lowers the link L, and this has the combined effect of lowering the
rod H and thus closing the valve G, and also of opening the cock B. The move-
ment of the arm T through the medium of the connecting rod S rocks the bucket N
away from the cock B and thus leaves the latter free to discharge its flow into
the cistern A. The cistern A thus begins to fill with the weight of the
tumbler pressing on the valve G, and when a predetermined quantity of water
has entered the cistern, the ball C begins to rise and thus rocks the shaft F until
the tumbler E crossing the centre line, falls back to its normal position taking
all the parts back to their normal position at the same time. The water is thus
cut off and the discharge of the contents is suddenly effected through the valve G,
and the parts remain in their normal position with the cistern A empty, until

page_text: the chain M is again pulled and another filling and discharging operation is
effected.
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 tumbler E carried on a rocking shaft F', in combination with the arm K,
link L and lever D, substantially as and for the purposes set forth.
2. The combination of the tumbler E, rocking shaft F, arm K, link L, lever D,
cock B, ball C, rod H having a forked end J, and the valve G, substantially as
and for the purposes set forth.
3. The combination of the tumbler E, rocking shaft F, arm K, link L, lever D,
cock B, ball C, rod H having a forked end J, valve G, chain M, arm T, connect-
ing rod S, bucket N, and overflow R, substantially as and for the purposes set
forth.
4. The general arrangement, construction, and combination of the various parts
forming the flushing cistern, substantially as set forth and shewn in the accom-
panying drawing.
Noted th 2011 dov of Clatabor & D 1908
BREWER & SON,
London and Leeds, Agents for the Applicant.