Improvements in or applicable to Flushing Cisterns.
Year: 1894

page_text: Date of Application, 3rd Dec., 1894
Complete Specification Left, 31st Aug., 1995-Accepted, 5th Oct., 1895
Date of Application, 3rd Dec., 1894
Complete Specification Left, 31st Aug., 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Flushing Cisterns.
We SAMUEL GRATRIX JUNIOR AND BROTHER LIMITED, Lead Merchants,
and HENRY BROCKLESBY Foreman, both of Alport Town, Manchester, in the
County of Lancaster, do hereby declare the nature of this invention to be as
follows:.
This invention relates to flushing cisterns such as are used in connection with
water closets and urinals, and for other similar purposes where it is required to
allow of the sudden escape or flow of a definite amount of water.
The object of the invention is to construct a valveless siphon cistern (for Hushing
water closets and similar purposes) which shall not be liable to waste water
accidentally, and which cannot he made to emit water continuously by fixing the
flushing lever in any position.
According to this invention the outlet or flushing pipe is connected to the upper
curve or bend of an S shaped siphon pipe, the said upper curve being above the
water level of the cistern when fully charged. The lower curve of the siphon pipe
projects upwards into the cistern for say three eighths, to one half of an inch, where
it opens into a cylinder provided with a suitable perforated base, or with arms
supporting it centrally from the said open end of the siphon pipe, or otherwise
suitable formed and open at the top. At a short distance from the bottom of this
cylinder, the top of which is above the high water level, is formed or fixed an
annular internal bead or equivalent device, and in the space between the latter and
the bottom of the said cylinder is placed a light loose plate having a central hole
of suitable size and capable of rising and falling freely as hereafter described. In
the upper part of the cylinder is fitted a ram or plunger which is of such thickness
or depth hat although it can slide quite freely in the cylinder it forms a practically
air-tight joint therewith. This ram or plunger is connected by a rod and link or
otherwise to a weighted lever whereby it is held at the top of the cylinder when
the flushing apparatus is not in action, and the weighted lever is provided with a
suitable chain and handle as usual, or other means for depressing the free end
thereof.
The action of the apparatus is as follows:-
When it is desired to flush the water closet or other place, the free end of the
above named weighted lever is depressed by the chain and handle (or their
equivalent) and the ram or plunger is forced down in the cylinder, driving the
water contained therein before it. As the metal plate above named rests upon the
bottom of the cylinder, there is no exit for the water excepting through the central
opening in the plate and down the open end of the siphon pipe, round the lower
curve or bend, up the vertical part thereof, round the upper bend or curve and
down the flushing pipe. As soon as the ram or plunger has reached, or nearly
reached, the annular or other stop fixed or formed in the cylinder, the siphon will
have been set up, and the water from the cistern will enter the bottom of the
cylinder, forcing the plate therefrom and continuing to flow down the discharge
pipe until the level of the water in the cistern has fallen to the bottom of the
cylinder and air can enter the latter.
When the free end of the above named lever has been released, the weighted end
will raise it and the ram or plunger to the upper end of the cylinder, and the space

page_text: below the said ram or plunger will be again filled with water ready for another
flush when required.
The apparatus is thus practically valveless, and cannot be made to work
continuously as of course the admission pipe is considerably less than the outlet or
flushing pipe.
Dated this First day of December 1894.
GEO. DAVIES & SON,
4, St. Ann's Square, Manchester, Agents for the Applicants
.
Improvements in or applicable to Flushing Cisterns.
We SAMUEL GRATRIX JUNIOR AND BROTHER LIMITED, Lead Merchants,
and HENRY BROCKLESBY Foreman, both of Alpert Town, Manchester, in the
County of Lancaster, 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 flushing cisterns such as are used in connection with
water closets and urinals, and for other similar purposes where it is required to
allow of the sudden escape or flow of a definite amount of water.
The object of the invention is to construct a valveless siphon cistern (for flushing
water closets and similar purposes) which shall not be liable to waste water
accidentally, and which cannot be made to emit water continuously by fixing the
flushing lever in any position.
The invention will be readily understood from the following description on
reference to the accompanying drawings.
Fig. 1 is a sectional elevation of a flushing cistern with our 'improved flushing
apparatus applied thereto (shewn partly in section). Fig. 2 is a plan view thereof
with parts removed, or broken away.
According to this invention the outlet or flushing pipe a is connected to the
upper curve or bend 6 of an S shaped siphon pipe b b1 62, the said upper curve b
being above the water level of the cistern when fully charged (see Fig. 1). The
lower curve of the siphon pipe projects upwards into the cistern for say an inch
and a half where it opens into a cylinder c, provided with a suitable perforated
base c', formed by arms supporting it centrally from the said open end be of the
siphon pipe (see Fig. 2), or otherwise suitably formed, and open at the top. At a
short distance from the bottom of this cylinder c, the top of which is above the
high water level as shewn, is formed or fixed an annular internal bead ef, or
equivalent device, and in the space between the latter and the bottom of the said
cylinder is placed a light loose plate d, having a central hole of suitable size (see
also Fig. 2) and capable of rising and falling freely as hereafter described. In
the upper part of the cylinder is fitted a rain or plunger which is of such
thickness or depth that although it can slide quite freely in the cylinder e it forms
a practically air-tight joint therewith. This ram or plunger is connerted by a
rod and link or otherwise to a weighted lever whereby it is held at the
top of the cylinder e when the flushing apparatus is not in action, and the weighted
lever gg is provided with a suitable chain g" and handle (not shewn) as usual, or
with other means for depressing the free end thereof.
The action of the apparatus is as follows:-
When it is desired to flush the water closet or other place, the free end g of the
above named weighted lever g g' is depressed by the chain g2 and handle (or their
equivalent) and the ram or plunger e is forced down in the cylinder c, driving the
water contained therein before it. As the metal plate d above named rests upon
the bottom of the cylinder, there is no exit for the water excepting through the

page_text: central opening in the plate d, and down the open end 62 of the siphon-pipe, round
the lower curve or bend, up the vertical part 61 thereof, round the upper bend or
curve b, and down the flushing pipe a. As soon as the ram or plunger e has
reached, or nearly reached, the annular or other stop fixed or formed in the
cylinder c, the siphon will have been set up and the water from the cistern will
enter the bottom of the cylinder c (as shewn by the arrows on Fig. 1) forcing the
plate therefrom into the dotted position shewn on Fig. 1, and continuing to flow
down the discharge pipe a until the level of the water in the cistern has fallen to
the bottom c¹ of the cylinder and air can enter the latter.
When the free end 9 of the above named lever g g¹ has been released the weighted
end g' will raise it, and lift the ram or plunger e to the upper end of the cylinder c
and the space below the said ram or plunger e will be again filled with water ready
for another flush when required.
The apparatus is thus practically valveless and cannot be made to work
continuously as of course the admission pipe is considerably less than the outlet
or flushing pipe a.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improved flushing apparatus constructed and operating substantially as
hereinbefore described and illustrated by the annexed drawings.
.נl.
onהנית
At 190K
GEO. DAVIES & SON,
Agents for the Applicants.