Improvements in and relating to Flushing Apparatus.
Year: 1897

page_text: Date of Application, 28th Apr., 1897-Accepted, 12th June, 1897
COMPLETE SPECIFICATION.
Improvements in and relating to Flushing Apparatus.
I, MATHIEU VLIEGEN, Manufacturer, of 27 Commercants Street, Brussels,
Belgium, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly describe and ascertained in and by the
following statement :-
This invention relates to that class of apparatus used in distributing and controlling
the flushing water to drains and water closets and it also may be applied to any
arrangement in which liquids are siphoned from one level to a lower one.
This invention consists in arranging within a liquid reservoir a siphon so con-
structed that the flow from the reservoir through the siphon can be started or stopped,
at will, and any quantities of liquid delivered up to the total capacity of the reservoir.
One mode of carrying this invention into effect as applied to the flushing of
water closets is illustrated in the accompanying drawings in which-
Figure 1 is a vertical section through the apparatus on the lines E, F.
Figure 2 a vertical section on the lines A, B, and
Figure 3 a horizontal section on the lines C, D.
Referring to the drawings, a water reservoir fitted with a ball float k and automatic
valve (which keeps the water at or about the level indicated in the drawings) is
provided; and within this reservoir the siphon controlling mechanism is placed. A
siphon pipe c is fixed to the bottom of the reservoir and over its upper end a bell
jar pipe 6 on a pin 7 fixed about the end of a lever a, which in turn is supported
and pivotted at a¹ and controlled by hand at its outer extremity by the rod ; while
the open end of the bell jar pipe 6 terminates in a piston flange b' fitting in and
concentric with a piston casing d that forms part of or is fixed to the reservoir
bottom though small ports or passages d' allow the water in the reservoir to get
into the casing d and underneath the piston flange b'. Upon the top of the bell
jar pipe 6 a small air valve e opening outwards is placed and this valve e is opened
when desired through the operation of the lever 7 which in turn is operated by
the lever a in a manner hereinafter described; while upon the bottom or flange part 6¹
of the bell jar pipe rubber stops or washers g g are placed.
The operation of the hereinbefore described apparatus is as follows. The water level
in the reservoir being about that indicated on the drawings it is desired to start a
flow of water down the siphon pipe c. To do this the rod is pulled and then
let go this operates the lever a and lifts the bell jar pipe 6 and water flows through
the perforations d' up underneath the piston flange b₁ and upon release the weight
of the bell jar pipe bacting upon its piston flange b¹ drives the water contained
in d up and between the siphon c and pipe b and thus starts the siphon flowing;
the small perforations d' not being able to discharge the water back into the reservoir
as quickly as the bell jar pipe falls so that the remainder is forced up as described.
The water will now continue flowing down the siphon until the reservoir is emptied
unless the air valve e is operated to stop the flow and to do this the rod l' is pushed
upwards, this depresses the inner extremity of the lever a, depressing in turn the outer
extremity of the lever f¹ and opening the valve e and thus stopping the flow in the
siphon by destroying the vacuum.
By these means the quantity of water sent down the siphon can be regulated with
accuracy and the flow stopped or started at will by the operation of a single rod,

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed, I declare that what I
claim is―
1. In apparatus for the distribution of water from a reservoir by means of a
siphon the provision of an air valve actuated in any suitable manner by hand to
introduce air into the siphon when desired substantially as and for the purpose
herein before described.
2. In apparatus for the distribution of water from a reservoir by. means of a
siphon the provision of a bell jar pipe covering the siphon and having its bottom
portion formed into a piston working in a cylindrical port of the reservoir bottom the
whole being actuated by a suitable lever and operating substantially as and for the
purpose herein before described.
3. The automatic flushing apparatus heroinbefore described with reference to the
'accompanying drawings.
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MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham, Agents.