INTERMITTENT FLUSHING APPARATUS
Year: 1884

page_text: "
I, FRIEDRICH CUNTZ of Karlsbad, Bohemia, Austria, Engineer, do hereby
declare the nature of my Invention for "INTERMITTENT FLUSHING APPARATUS
to be as follows:-
According to my present Invention a siphon pipe situated inside a flushing tank
or receptacle which is gradually filled with liquid, and the contents of which are
to be periodically emptied, has its longer limb forined with a double bend or trap,
so as to be sealed with the liquid when the siphon is empty. Near the top bend
of the siphon its shorter limb, which opens into the tank, is made to communicate
with the short limb of a small starting siphon, whose long limb communicates with
the long limb of the main siphon beyond the before mentioned double bend or
trap thereof, and whose bend is situated at a somewhat higher level than that of
the main siphon. As the water rises in the tank, it also rises in the short limb of
the main siphon, the air in which will escape through the starting siphon until the
water has closed the opening in the main siphon leading into it, whereupon the
continued rising of the water will to a certain extent compress the air which is
confined in the long limb of the main siphon by the trap. When the water in the
tank has risen to the top of the small starting siphon this will be put in action,
and its discharge into the long limb of the main siphon, aided by the pressure of
the compressed air in the latter upon the water seal, will effect the starting of the
main siphon, so as to rapidly discharge the tank, whereupon the trap of the main
siphon will remain filled with water and on the gradual filling of the tank again
the above described operation will be repeated.
By connecting the short limb of the starting siphon with the main siphon as
described, and thus providing for the escape of the air from the latter up to a
certain point, the air remaining therein is prevented from attaining such a pressure
as would break through the water-seal before the apparatus is ready to be started.
This result may also be attained by merely forming a small hole in the main
siphon instead of connecting the short limb of the starting siphon thereto; the
short limb of the latter would in that case open into the tank. The small hole
would not be of sufficient size to interfere with the action of the siphon when
started

page_text: Although the above described apparatus is more particularly applicable for
flushing drains, urinals, and the like, yet it is also applicable in all cases where a
periodical discharge of a certain volume of any liquid is desired.
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.
"
I, FRIEDRICH CUNTZ of Karlsbad, Bohemia, Austria, Engineer do hereby
declare the nature of my Invention for "INTERMITTENT FLUSHING APPARATUS
and in what manner the same is to be performed to be particularly described
and ascertained in 8 by the following statement :—
According to my present Invention as illustrated by the accompanying diagram
a siphon pipe A A¹ situated inside a flushing tank or receptacle B which is
gradually filled with liquid, and the contents of which are to be periodically
emptied, has its longer limb formed with a double bend or trap C so as to be
sealed with the liquid when the siphon is otherwise empty. Near the top bend
of the siphon its shorter limb A' which opens into the tank, is made to communicate
with the short limb D of a small starting siphon whose long limb E communicates
with the discharge pipe F of the main siphon beyond the trap C, and whose bend
is situated at a somewhat higher level than that of the main siphon. As the
water rises in the tank, it also rises in the short limb A¹ of the main siphon, the
air in which will escape through the starting siphon D E until the water has
closed the opening in the main siphon leading into D whereupon the continued
rising of the water will to a certain extent compress the air which is confined in
the long limb A. of the main siphon by the trap C. When the water in the tank
has risen to the top of the starting siphon this will be put in action, and its
discharge into the pipe F, aided by the pressure of the compressed air in A upon
the water seal, will effect the starting of the main siphon, so as to rapidly discharge
the tank, whereupon the trap of the main siphon will remain filled with water
and, on the gradual filling of the tank again the above described operation will
be repeated.
By connecting the short limb D of the starting-siphon with the main siphon as
described, and thus providing for the escape of the air from the latter up to a
certain point, the air remaining therein is prevented from attaining such a pressure
as would break through the water seal in C before the apparatus is ready to be
started. This result may also be attained by merely forming a small hole in the
main siphon instead of connecting the short limb of the starting siphon thereto;
the short limb D of the latter would in that case open into the tank. The small
hole would not be of sufficient size to interfere with the action of the siphon when
started.
Although the above described apparatus is more particularly applicable for
flushing drains, urinals, and the like, yet it is also applicable in all cases where a
periodical discharge of a certain volume of any liquid is desired.

page_text: Having now particularly described and ascertained the nature of my Invention
and in what manner the same is to be performed, what I claim is :-
1. In combination with a main siphon for intermittent flushing having a trap
for liquid sealing of its discharge, a small starting siphon communicating with the
main siphon, substantially as and for the purposes herein set forth.
2. In combination with a main siphon for intermittent flushing having a small
hole for escape of air and a trap for liquid sealing of its discharge, a separate
small starting siphon communicating with the main discharge pipe, substantially as
herein described.