Improvements in or relating to Flushing Apparatus for Water-closets and for similar Purposes.
Year: 1897

page_text: Date of Application, 28th Sept., 1897-Accepted, 20th Nov., 1897
Improvements in or relating to Flushing Apparatus for Water-closets
and for similar Purposes.
A communication from the Firm of FRIEDRICH WANGELIN, of 12 Marschallstrasse,
Dresden in the Empire of Germany
I, ALFRED JULIUS BOULT, of 111 Hatton Garden in the County of Middlesex,
Chartered Patent Agent, 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 object of the present invention is a flushing device for water-closets etc. in
which there is arranged a suction device similar to ordinary syphons, which
becomes operative as soon as the bend of the syphon is filled with water.
When arranging the usual firmly secured bent pipe for flushing tanks, it has
been difficult hitherto to obtain a sudden strong flushing or suction, which is
absolutely indispensable for the good working of the apparatus. On the contrary
owing to the water level in the tank rising slowly and the interior of the bend
being consequently slowly filled, the suction took place only in a very slow manner,
and with pipes of a comparatively large diameter, the suction often did not take
place at all.
In order to obviate this drawback, the syphon according to the present invention
is made telescopic so that its upper part with the bend is suddenly lowered by
means of a series of rods or levers so far that the interior of the bend is. suddenly
filled and thus the liquid contained in the tank is suddenly sucked or syphoned
out, the syphoning action continuing until air enters the free end of the syphon
whereupon the syphon is drawn into its original position or position of rest by a
suitably arranged balance-weight.
In the accompanying drawing a device according to the present invention is
illustrated by way of example.
Fig. being a longitudinal section (the dotted lines indicating the position
during the syphoning action).
Fig. 2 is a plan.
Fig. 3 a cross-section of the water-tank and lever parts.
Fig. 4 a longitudinal section of the portion of the free end of the syphon and its
attachment, and.
Fig. 5 a modified construction of the lever mechanism the apparatus shown in
longitudinal section.
The drawing off of the liquid contained in the tank a may be effected in different
ways. According to the arrangement shown in Fig. 1, it is effected by pulling
down or depressing a lever i pivotted on one or the other side of the tank a said
depression being preferably effected by means of a chain, cord or the like k either
by hand or by the movable seat of the closet.
By pulling the lever i downwards an arm of a sleeve m mounted loosely on the
spindle is also pulled down and the arm on said sleeve m is thus raised so that

page_text: a pin p projecting from the disc o on the rod n raises the bifurcated lever f carry-
ing the weight e. This movement withdraws the support from the syphon c so that
the latter falls by its own weight into the position shown in dotted lines in Fig. 1
and it remains in this positon until all the liquid is syphoned out and air can pass
into the suction pipe. The lowering of the weight o after the chain k is released
is of no consequence as the balance weight e is balanced exactly and does not begin
to descend until all pressure of water on the syphon ceases.
While with the arrangement of rods according to Fig. 1, the spindle h is fixed
in the tank a and the sleeve m is loose on the spindle, the construction according
to Fig. 5 is such that the spindle ¹ itself turns. In this case the arm is secured
directly to the latter, the device being actuated, as in Fig. 1 by a chain k and
lever . By pulling down the latter, the spindle is therefore turned whereby the
finger g is also caused to move downwards, and so presses upon the syphon c in such
manner that the latter is caused to descend.
In this arrangement the bend c also remains during the syphoning action in the
position indicated by dotted lines in Fig. 5 without necessitating the chain being
continuously pulled, as the pressure of water drawn out exercises on the bend a
pressure greater than the excess of the weight e¹. As soon however as the suction.
ceases, the weight e¹ is again able to raise the bend c into its original position in
which it remains until again depressed by the finger q.
In order to enable the tank to be emptied completely or partially as desired,
the free branch of the bend c is provided with holes r at different levels, which can
be closed by plugs s. In order therefore to empty the tank a completely, all the
holes must be closed, while for the least amount of emptying possible only the
top-hole must be open. This is based on the fact that the syphon ceases to act as
soon as air enters its free end.
A rod t may be employed to act as a guide for the bent part of the syphon tube.
Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is:-
1. A flushing-device for water-closets and for similar purposes in which the
liquid is syphoned out from the tank by a bent pipe as c, telescopically arranged in
the part said bent pipe being raised into its original position after the syphoning
action is finished by means of levers, as f, provided with a balance weight e,
substantially as described.
2. In a device of the character described means for regulating the quantity of
liquid discharged, consisting of a series of holes r formed in the bend c at different
levels, said holes being closed or opened as desired, substantially as described.
3. The combination and arrangement of parts constituting the complete flush-
ing device for water closets and for similar purposes, substantially as described,
and illustrated in Figure 1 or in Figure 5 of the accompanying drawings.
Dated this 28th day of September 1897.
BOULT & WADE,
Agents for the Applicant.