Year: 1887

page_text: Date of Application, 9th Dec., 1887
Specification Accepted, 13th Jan., 1888
We, SAMUEL NICHOLLS trading as Nicholls & Clarke Glass and Lead Merchant and
WILLIAM COTTRELL Department Manager both of 6 High Street Shoreditch in the
County of Middlesex do hereby declare the nature of the said invention and in
what manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
In the lower part of the flushing cistern we fix a cylinder, which at its lower end
communicates with the water in the cistern and at its upper end and side com-
municates with the short leg of a syphon the other leg of which passes down through
the bottom of the cistern and to the pipe for flushing the water closet, urinal or other
place to be supplied. In the cylinder we provide a piston which may be an easily.
fitting metallic disc. To this latter is fixed a piston rod which passes downward into
a recess or well formed in the bottom of the cistern and is then turned upward again
outside the cylinder, its outer upper end being connected to the weighted end of the
pull lever, the other end of such lever being connected to the usual pull handle.
Or the piston rod is fixed at its lower end to a cross bar having a rod or part passing
up each outer side of the cylinder and at the top united by a cross bar connected to
the pull lever. The flushing cistern is fitted with a ball cock for supply of water
thereto. When the handle is pulled the piston is raised and forces the water
contained above it into the syphon and as its stroke is continued beyond the lateral
part of opening to the syphon the water is drawn up from the lower part of the
cylinder which communicates with the cistern and the action of the syphon is
commenced and continued until the proper flushing supply has been discharged.
The rod or rods connected to the piston rod may be guided in one or two eyes or
guides on the outside of the cylinder. The cylinder and the syphon pipe are by
preference cast in one. By means of the above improvements we.are able to produce
a water waste preventing flushing appliance of simple, effective and cheap form,
a
and without the use of any valve or of any stuffing box for the piston rod.
In the accompanying drawings Figure 1 is a vertical longitudinal section through
the whole apparatus, Figure 2 a vertical transverse section through the cylinder with
parts connected thereto and Figure 3 a plan view of the whole apparatus being a
syphon water waste preventer of an improved construction.

page_text: In the lower part of the flushing cistern A is arranged a cylinder B which at its
lower end communicates with the water in the cistern viz. in this case by the recessed
chamber C in the bottom of the cistern. The cylinder B communicates at its upper
end and side by the passage B' with the short leg of a syphon D the other leg of
which passes down through the bottom of the cistern and to the pipe for flushing the
water closet. The cylinder B and syphon pipe D are in this case shewn as made in
one casting and with the nipple E also cast in, whereby the whole, by means of nut
or nuts on the nipple is fixed to the bottom of the cistern. F is an easily fitting
piston made say of cast brass and with three or more guide brackets F'. To the
piston is fixed a piston rod G which passes down in the aforesaid recess C and is
fixed or cast in one with a cross bar fl having a rod I passing up along each outer
side of the cylinder B and at the top united by a cross bar to which the pull lever K
is connected. L is a usual ball cock lever.
When the handle connected to the lever K is pulled the piston F is raised into the
position shewn in dotted lines whereby the water standing in the cylinder is forced
up the short leg and down the long leg of the syphon D the water in the bottom of
the cylinder at the same time following after, thus starting the syphon action which
will continue until the cistern is practically emptied.
Figure 4 is a vertical cross section of another form of apparatus operating exactly
in the same manner but where the annular part of the cylinder B itself forms as it
were the short leg of the syphon while the down pipe D forms the long leg, and is
placed in the centre of the cylinder, the piston F being annular with two descending
piston rods G. These are at their lower ends continued upwards as rods I passing up
along each outer side of the cylinder and united to a cross bar at the top which is
connected to the pull lever. The cylinder is formed with an enlargement or
passage B. When the piston F is pulled up beyond the latter the syphon action is
produced.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is :-
First A syphon water waste preventer consisting of a cistern with cylinder at
its bottom and there communicating with the water in the cistern, the cylinder being
provided with a piston with lower piston rod passing down a recessed part of the
cistern and connected to a rod or rods passing up alongside the cylinder and at the
top connected to the pull lever, the cylinder at its upper end having a lateral aperture
or enlargement for communicating with the syphon or the descending leg of same,
all so arranged that when the piston is raised beyond the said lateral aperture or
enlargement the syphon action is produced and continued substantially as set forth.
Second-The improved constructions of syphon waste preventers substantially as
described and shewn.
Third The cistern A with recessed part C substantially as and for the purpose
set forth.
Fourth-The cylinder B having a passage or enlargement B¹ in combination
with the syphon D substantially as set forth.
Dated this 9th day of December 1887.