Improvements in Closet Cisterns.
Year: 1890

page_text: Improvements in Closet Cisterns.
We, GEORGE ANGUS MILLER, CHARLES HERBERT MILLER, LEWIS WILLIAM TOMS,
and DAVID LANCASTER WINNELL, all of the City of Montreal, in the District of
Montreal and Province of Quebec, Dominion of Canada, Machinists, 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:
This invention relates to water closet cisterns having siphon discharge, the
distinguishing feature being the construction of the stand pipe in such form that a
portion of it is normally above the water level but can be submerged, to start the
siphon action.
The lowering of the stand pipe instead of the elevating of the water to start the
siphon may be variously effected; we have illustrated two methods which we shall
describe referring to the annexed drawings.
Fig. 1 is a vertical longitudinal section of a cistern provided with a vertical stand
pipe and hood, half the stand pipe being shown in elevation.
Fig. 2 is a plan of the cistern.
Fig. 3 a plan of the top of the stand pipe.
"
Fig. 4 is a vertical section of a cistern provided with a goose neck" siphon
pipe.
Similar letters indicate corresponding parts in the several figures. A is the cistern
which can be supplied by ball cock or otherwise.
As shown in Figs. 1 and 2 the stand pipe consists of a lower part B passing
through the bottom of the cistern and provided with a flange B' and washer a, a
metal top part B³ and a collapsible portion B³, of rubber leather or like material made
in bellows form with ends secured in seats 662 on the ends of the parts B B². The
top part B2 has a curved bridge piece B to which is screwed the end of a short rod D
pivotted at d to a lever E. The rod D is also screwed through the head F¹, of the
hood or cylinder F which is thus hung over the stand pipe.
A washer is placed between the bridge piece B and the crown piece F¹ to render
the joint tight against leakage. Ribs G are formed in the pipe B to act as guides
for the hood F.
The lever E, is pivotted at E2 on a bridge E¹ extending across the cistern, and its
short arm has a load e sufficient to counterbalance the hood F and the usual chain or
other pull (connected to the end of E) and to keep the edge of the top piece B¹
above the water level as indicated at Z.
When the lever E is pulled down to the dotted position depressing the hood F and
collapsing the bellows portion B³ till the open top B2 is at X X below the water level,
the siphon action is established and continues until the contents of the cistern are
discharged.
As shewn in Fig. 4, we may dispense with the hood F by making the upper
part H of the stand pipe in "goose neck" form having its open end H' always
beneath the surface of the water but the inner angle H' of the elbow normally above
the water level. The goose neck pipe is connected by flexible tubing J to the pipe H³,
which passes through the bottom of the cistern.
The siphon action is started by depressing the goose neck pipe H to the dotted
position so that water flows over the angle H.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In closet cisterns having siphon discharge, the herein described method of

page_text: starting the siphon action by lowering so as to submerge the inlet to the discharge
limb of the siphon.
2. For starting the siphon action in the manner above referred to, the com-
bination of a mouth piece and hood moved by a lever with a stand or discharge pipe
made partly collapsible, substantially as described with reference to Figs. 1, 2
and 3.
3. For starting the siphon action, the combination with the lever of a goose
neck siphon bend flexibly connected to the discharge pipe, substantially as described
with reference to Fig. 4.
ABEL & IMRAY,
Agents for the Applicants.