Improvements in connection with Syphon Cisterns.
Year: 1896

page_text: Date of Application, 27th Apr., 1896-Accepted, 30th May, 1896
COMPLETE SPECIFICATION.
Improvements in connection with Syphon Cisterns.
I, CHRISTOPHER THOMAS LEE, 13, Great Avenham Street, Preston, Lancashire,-
no occupation, 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 manner :-
My invention relates to what are known as syphon cisterns for flushing water
closet pans.
My improved cistern has no valves, and can be started and stopped at will..
The main part of the cistern is preferably made deep and narrow rather than
broad and shallow. Below or within and attached thereto is a small box trap.
cistern. The main part of the cistern is provided with a ball valve inlet, and also.
with a waste pipe. Extending from the bottom of the box cistern and reaching to.
nearly the top of it, is an upstanding pipe, the lower end of which is connected
with the flushing pipe. Through the bottom of the main cistern passes another
pipe, extending from near the bottom of the box cistern somo distance towards the
top of the main cistern. Surrounding this pipe is a cylindrical "bell" having the
upper end closed and being of somewhat greater inside diameter than the outside
diameter of the pipe which it surrounds. At the bottom of the cylinder is a small
bole, for stopping the cistern when empty. To the closed end of the cylinder is.
hinged one end of a lever, the other end of which extends boyoud the end of the
main part of the cistern farthest from the inlet, the projecting end being furnished
with a chain or the like for operating the lever. The lever is supported on a cross.
rod passing through or otherwise attached to it, each end of the rod being free to
move in the sides of the cistern. Suitable stops are provided to keep the lever
from going or being pulled down too far. In order to more clearly indicate the
nature of my invention, I make reference to the accompanying drawing, which
represents a sectional side view of a cistern embodying my invention, and I have
for simplicity of reference assumed that the box cistern is below the main one, but.
as before mentioned, I do not restrict myself to its being in that position.
a is the main part of the cistern, biulet for water, o ball valve, d overflow
pipe, e box trap cistern with outlet pipe reaching nearly to the top of it, g pipe
reaching nearly to the bottom off and rising into a, h cylinder surrounding and
baving a hole at i, j lever from which hangs the cylinder h, cross rod the ends.
of which turn in the opposite sides of a. extension of j beyond & forming a
lever by which can be turned on the axis of k by pulling the ring m of the
chain n, whereupon the cistern is caused to operate. o and p are stops to restrict
the movement of ; and j.
I do not restrict myself to the relative proportions, configuration, or disposition
of parts, as shewn in the drawing, as any or all of them may be varied without
departing from the spirit of my invention. It is intended to make the cistern and
its details of the materials usually employed for such purposos.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is.-
1. A syphon cistern consisting essentially of a main cistern and a box trap one,.
the latter being either within or outside the main cistern, a flushing pipe extending
unwards to within a short distance of the ton of the box cistern and another nine.

page_text: extending from near the bottom thereof, to some distance towards the top of the
main cistern, the apparatus being operated by a cylinder surrounding the said
upstanding pipe in the main cistern, and raised or lowered by a lever, the whole
substantially as described in the above Specification, and exemplified in the
accompanying drawings.
2. A syphon cistern provided for and operating substantially as described in the
above Specification, and exemplified in the accompanying drawings.
Dated this 25th day of April 1896.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for the Applicants.