Improvements in and connected with Valveless Syphon Flushing Cisterns of Waterclosets.
Year: 1890

page_text: Date of Application, 3rd May, 1890
Complete Specification Left, 2nd Feb., 1891-Accepted, 14th Mar., 1891
⚫ PROVISIONAL SPECIFICATION.
Improvements in and connected with Valveless Syphon Flushing
Cisterns of Waterclosets.
We, RICHARD THOMASON and WALTER THOMASON, of the firm of Walter
Thomason and Sons, of 21 and 23, Weston Street, Bolton, in the County of
Lancaster, Plumbers, do hereby declare the nature of our said invention to be as
follows:-
This invention relates to improvements in and connected with valveless
syphon flushing cisterns of waterclosets, and has for its object that of simplifying their
action, working parts, and construction. In the flushing cistern is mounted the outlet
any convenient
pipe, over which is fixed an inverted cap or bell secured to the cistern in
over which is fixed an inverted cap or bell secured to the cistern in any convenient
inanmer. The lower end of the inverted cap or bell is increased in diameter to allow
of a disc sliding or moving on or over the outlet pipe. The said dise is attached
to connecting rods pivoted to levers mounted on a shaft or centre in bearings on the
flushing cistern. The shaft or centre is fitted with the usual lever, chain or rod,
and handle to operate the same. In flushing cisterns at present is use syphonic
action is started immediately the handle is operated upon; in this invention this
operation does not take place until the handle has been operated to depress the
sliding disc and released to allow it to rise by the aid of a balance weight on the
shaft or centre. The rising action of the disc forces the water in the cistern over
the top end of the outlet pipe. The flushing cistern is provided with the usual
ball-valve and overflow pipe.
Dated the 2nd May 1890.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in and connected with Valveless Syphon Flushing
Cisterns of Waterclosets.
We, RICHARD THOMASON and WALTER THOMASON, of the firm of Walter
Thomason and Sons, of 21 and 23, Weston Street, Bolton, in the County of
Lancaster, Plumbers, do hereby declare the nature of our said 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 relates to improvements in and connected with valveless syphon
flushing cisterns for waterclosets, and has for its object that of simplifying their
In the flushing cistern is mounted the
action, working parts, and construction.
outlet pipe, over which is fixed an inverted cap or bell secured to the cistern in any
convenient manner. The lower end of the inverted cap or bell is increased in
diameter to allow of a disc sliding or moving on or over the outlet pipe. The said
disc is attached to connecting rods pivoted to levers mounted on a shaft or centre in
hearings on the flushing cistern. The shaft or centre is fitted with the usual lever,
chain or rod, and handle to operate the same. In flushing cisterns at present in use
syphonic action is started immediately the handle is operated upon; in this
invention this operation does not take place until the handle has been operated to
depress the sliding disc and released to allow it to rise by the aid of a balance

page_text: weight on the SHATE or centre. The rising action of the tisc forces the water in the
eistern over the top end of the outlet pipe. The flushing cistern is provided with
the al ball-valve and overflow pipe.
DESCRIPTION OF DRAWINGS,
Fig. is a sectional elevation of our improved valveless syphon flushing cistern for
waterclosets—Fig. 2 is a plan of same-Fig. 3 is a longitudinal outside view, and
Fig. 4 is a transverse sertion through centre of Fig. 1.
As the flushing cistern: B the outlet pipe: C the inverted cap or bell: D the
sliding dise or plate; E rods connecting the dise or plate D to the levers F;
(the operating shaft: H the ball-valve, and I the overflow pipe.
In the flushing cistern A is mounted the outlet pipe B, by means of the nut J,
over which is fixed the inverted cap or bell C, secured in position by the arms K
and bolts 1. The lower end M of the inverted cap or bell is increased in
diameter to allow of the disc or plate D sliding or moving on or over the outlet
pipe B. The sliding dise or plate D is fitted with the rods E; the upper ends of
the latter being fitted with the snekets N and pins 0, by which they are connected
to the levers on the shaft G. The latter is also provided with the balance
weight operating lever Q. and stop lever R. The shaft ti is mounted in tu
hearing S attached to the sides of the flushing cistern A. The lever Qi, provided
with the rod or chain T and th handle to operate the same when flushing is
desirel or meets ary. The tushing cistern A is fitted with the usual hall-valve H
to automatically charge the same with water, being regulated by th rising and
falling action of the ball on the surface of the water. In case the ball-valve II
fails to stop the supply of water, and the latter rises to the level of the overflow
pipe 1, the water will pass away through the pipe I, thus preventing the cistern A
overflowing.
The
This invention operates in the following manner: When it is desired or
necessary to discharge water from the estern for the purpose of flushing water-
closets it is effected by pulling down the handle U to slide the di-e or plate 1, by
the intervening connection, down the outside of the pipe B to the position shown
in dotted lines in Fig. 1, after which the handle is released or allowed to rise by
the action of the balance weight P, which causes the disc or plate D to rise.
raising of the latter lifts or forces the water in the upper end of the inverted cap or
bell over the top and down the outlet pipe B to the closet basin to flush or wash
the contents therefrom. After the flush has been started water passes down the
openings to supply the inverted cap or bell (from the cistern A. To
determine the maximum: movement of the shaf G and its connections it is fitted with
the stop lever R which operates in either direction against the stops X on the side
of the cistern A. The rods E and the pipe B are provided with the india-rubber
buffers W to prevent or minimise shock when operating the sliding disc or
plate D.
It will be seen that, in this invention, syphonic action does not take place
immediately the handle U is operated, but only after the said handle has been
released to allow it to rise.
Having now particularly described and ascertained the nature of our invention
and in what manner the same is to be performed we declare that what we
claim is:-
1. Discharging water from cisterns employed for flushing waterclosets by means
of the upward motion of a sliding disc or plate mounted on or over the outlet pipe
and enclosed by an inverted cap or bell, substantially as described.
2. In cisterns employed for flushing waterclosets the use of the sliding disc or
plate D mounted on or over the outlet pipe B, and the inverted cap or bell C, for
the purpose specified substantially as described.

page_text: 3. In cisterns employed for flushing waterclosets the combination of the outlet
pipe B, sliding disc or plate D, inverted cap or bell C, connecting rods E,
levers F and Q, shaft G, bearings S, and the balance weight P, applied and
operating substantially as described and illustrated in the drawings.
Dated the 24th January 1891.
EDMUND CHADWICK,
Agent.