Improvements in Flushing Cisterns.
Year: 1891

page_text: Date of Application, 7th May, 1891
Complete Specification Left, 5th Jan., 1992-Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Flushing Cisterns.
I JOSEPH SOUTHALL of the Worcester Foundry in the City of Worcester of
the firm of Hardy & Padmore, Ironfounders, do hereby declare the nature of this
invention to be as follows:-
My invention consists in constructing flushing cisterns so as to act in the following
manner.
I will proceed to describe how I accomplish my invention but I do not bind
myself to the precise method described. By preference I use a cistern having
a well cast at a suitable position in its bottom, in this well I make an outlet pipe
terminating at its upper end in a valve seat the top of which stands somewhat
above the bottom of the well. On this seat works a valve which can be raised at
will in the usual manner by means of a lever worked by a rod or chain outside the
cistern, which lever is attached to a link connected loosely to the valve. This link
works through a hole in a piece of metal bridging the top of the well, the lever of
the ball cock working up and down between its two sides for a certain distance,
these sides are connected by two cross pieces of metal, one at the top forming a
jaw and another lower down, this lower cross piece being at such a point as to be
under the ball cock lever so that when the link is raised it lifts the ball cock lever
up with it closing the ball cock, and when the valve is on its seat permits
the ball cock lever to fall just low enough to allow a good flow of water to come
in at the cock, this lower cross piece may be covered with rubber to prevent noise
when the ball cock lever falls on to it. The link has also a projecting part near
its lower end forming the catch which holds the valve up off its seat whilst the
cistern empties, as it slips over and rests on the bridge piece as described below
when the link is raised. On the bridge piece of metal near to one side of the hole
in which the link works are two lugs in which a lever is pivotted, this lever has a
float at its one end and the other end nearest the link has a slot in it, the slotted
part working between the sides of the link, on which it operates by means of a pin
passing through the slot, such pin being fastened at its ends into the sides of the
link. The action is as follows, assuming the cistern to be full of water, the chain
is pulled lifting the valve till its top side nearly touches the underside of the
bridge casting, a stop on the cistern preventing the lever from raising it past this
point, immediately the valve is thus raised the float which is trying to rise pushes
the link, by means of the slot and pin arrangement, over in the one direction thus
bringing the projecting part of the link over the edge of the top of the bridge
plate so that when the chain is loosed the link rests on the bridge piece and so holds
the valve up in its raised position the same operation raising and holding up the
ball cock lever thus closing the ball cock and preventing any fresh water coming
in as the water in the cistern falls. When the water has nearly reached the
bottom of the cistern, the float falls and by its weight causes the slotted end of the
lever to act on the pin thus drawing the link back and freeing the catch, simulta-
neously allowing the valve to drop on to its seat and the ball lever to fall to such a
position as to open the cock and thus refill the cistern.
Dated this 6th day May 1891.

page_text: COMPLETE SPECIFICATION.
Improvements in Flushing Cisterns.
I JOSEPH SOUTHALL of the Worcester Foundry in the City of Worcester of
the firm of Hardy & Padmore, Ironfounders, 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 :-
My invention consists in constructing flushing cisterns so as to act in the
following manner which action is made clear by the sheet of drawings annexed
hereto.
Fig. 1 is a longitudinal section and
Fig. 2 a transverse section of a flushing cistern constructed according to my
invention.
C is a cistern having a well W cast at a suitable position in its bottom, in this
well is an outlet pipe O terminating at its upper end in a valve seat, the top of
which stands somewhat above the bottom of the well. On this seat rests a valve V
which can be raised at will in the usual manner by means of a lever L worked
by a rod or chain outside the cistern, the lever L being attached to a link K con-
nected loosely to the valve V. This link K works through a hole in a piece of
metal M bridging the top of the well, the piece of metal M being narrow as shewn
or if preferred extended to cover the top of the well in which case it is perforated
to allow water to pass through but not dirt or other solid matter likely to prevent
the valve from finding a good seat. The lever B of the ball cock works up and
down between the two sides of the link K for a certain distance, these sides are con-
nected by two cross pieces of metal, one A at the top forming a jaw to receive
the lever L and another D lower down, this lower cross piece D being at such a
point as to be under the ball cock lever so that when the link K is raised it
lifts the ball cock lever up with it closing the ball cock, and when the valve is on
its seat permits the ball cock lever to fall just low enough to allow a good flow of
water to come in at the cock, the lower cross piece D may be covered with rubber to
prevent noise when the ball cock lever falls on to it. The link K has also a projecting
part P near its lower end forming the catch which holds the valve up off its seat
whilst the cistern empties, as it slips over and rests on the bridge piece M, as
described below, when the link is raised. On the bridge piece M near to one side
of the hole in which the link K works are two lugs E in which a lever F is
pivotted, this lever has a float G at its one end and the other end nearest the link K
has a slot S in it, the slotted part working between the sides of the link, on which
it operates by means of a pin T passing through the slot, such pin being fastened
at its ends into the sides of K. The action is as follows:-Assuming the cistern C
to be full of water the chain is pulled lifting the valve V till its top side nearly
touches the underside of the casting M a stop on the cistern cover preventing the
lever from raising it past this point, immediately the valve is thus raised the float G
which is trying to rise pushes the link K, by means of the slot S and pin T
arrangement over in the one direction thus bringing the projecting parts P of the
link Kover the edge of the top of the bridge M so that when the chain is loosed,
the link rests on M and so holds the valve up, the same operation raising and
holding up the lever of the ball cock by means of the cross piece D thus closing
the ball cock and preventing any fresh water coming in as the water in the
cistern falls.
When the water has nearly reached the bottom of the cistern, the float G falls
and by its weight causes the slotted end of the lever so to act on the pin T as to
draw the link K back thus freeing the projecting parts P and simultaneously
allowing the valve V to close and the ball valve lever to fall to such a position as
to open the cock and thus refill the cistern.

page_text: 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) Constructing flushing cisterns in the manner and with the object described
herein and shewn on the drawings.
Dated this 4th day of January 1892.