Improvements in Syphon Flushing Cisterns for Water-closets, Latrines, and the like.
Year: 1894

page_text: Date of Application, 20th Nov., 1894
Complete Specification Left, 19th Aug., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Syphon Flushing Cisterns for Water-closets,
Latrines, and the like.
THOMAS CURTIS and WILLIAM CHARLES MIDDLETON CURTIS, Merchants and
Manufacturers, 98 & 99, Middle Abbey Street, Dublin, trading as W. Curtis
& Sons, do hereby declare the nature of this invention to be as follows:--
The cistern is filled in the ordinary way by a ball cock, having a floating ball,
& when required to be used, the syphon is charged by the displacement of water
caused by depression of the float ball, the charge being further assisted by the fresh
flow of water direct from the inlet cock to the syphon. Silent action is secured by
means of a graduated air inlet to the syphon, which completely does away with all
noise. There is no flushing valve, consequently no washer or other moving part to
get out of order.
Dated this 19th day of November 1894.
THOMAS CURTIS.
W. C. M. CURTIS.
Latrines, and the like.
THOMAS CURTIS and WILLIAM CHARLES MIDDLETON CURTIS, Merchants and
Manufacturers, 98 & 99, Middle Abbey Street, Dublin, trading as W. Curtis
& Sons, 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 :-
The cistern in appearance is the same as that in every day use, but the
advantages claimed consist in the improvements in connection with discharging
the water through the syphon & securing silent action. The means employed for
charging the syphon and starting its action, are as follows, viz. when the lever A is
pulled in the ordinary way it causes the floating ball B to be depressed by the
arm J of axle K, which displaces the water in cistern and raises its level to top of
syphon C, the charge of syphon is further assisted by a fresh flow of water direct
from inlet cock E discharging upwards at mouth D of syphon, this flow of water is
checked in its upward course when the handle or lever is released, by the insertion
of a small sluice disc F in the upper end. This disc is operated by the lever or arm
marked L. The syphon C itself is of improved form at top, instead of being
round as is usual it is flattened in section thus C. The silent action is secured
by means of a graduated air inlet H to the syphon. There is no drop or flushing
valve of any kind.
With reference to the silent action of our cistern, we overcome the great
gurgling noise so disagreeable in the old type of cistern, which noise is caused by
the rush of a large quantity of air forcing its way into the mouth of the syphon,
this we overcome by providing a small air inlet pipe H. which admits only a limited
and graduated supply of air to the syphon C. The air, being admitted in limited
quantity and through a small aperture, does not cause any unpleasant noise.

page_text: 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―
1st. The method of charging the syphon by, water displaced by depression of
float ball, also by direct supply at pressure to syphon.
2nd. The means of checking this direct supply to syphon at the proper time.
3rd. The improved sectional form of flatted top syphon.
4th. Graduated air inlet to syphon.
THOMAS CURTIS.
W. C. M. CURTIS.