An Improved Process and Arrangement for Emptying Cesspools, Pits, Ditches and the like, and for Transferring Liquids.
Year: 1898

page_text: Date of Application, 20th June, 1898-Accepted, 15th Oct., 1898
An Improved Process and Arrangement for Emptying Cesspools,
Pits, Ditches and the like, and for Transferring Liquids.
I, RICHARD FIEDLER, of Birkenstrasse 57, Berlin, in the Empire of Germany,
Director, 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 emptying of pits, wells, cesspools &c. is effected at present generally in such
a manner, that from the pit to be emptied there is laid a hose pipe to a barrel
like transport receiver. From this receiver the air is sucked out by means of an air
pump by hand or steam and the evacuation of air being effected in, the transport
receiver, the exterior atmospheric pressure drives the contents of the pit through
the hose pipe into the receiver.
The present invention relates to an improved process for emptying cesspools
and the like, as well as for transferring liquids from tanks and such like, on an
essentially different principle, whereby the pressure of the exterior atmosphere is
used as the driving power by the production of an inferior pressure in the transport
receiver; but this inferior pressure is not effected as hitherto by a pump, but by
introducing steam directly into the receiver and letting it then condense, so that
the said air pump is unnecessary and in consequence of the hereafter described
proceeding the steam production is effected in a very simple manner avoiding the
hitherto used steam boiler, the process is very simple compared with those hitherto
used.
The production of steam is effected in the present case by means of a steam
generator, the inner construction of which can be seen from Fig. 1 of the annexed
drawing, whilst in Fig. 2 there is represented a back view of the tank.
On a corresponding 2 or 4 wheeled framing there is seated the tank which on
rose
its upper part carries a water receiver w. From the latter a tube o passes to the
rose a arranged in the interior of the transport receiver t, from which
on opening the tap n a fine water spray can be thrown into the
interior of the tank. A second tube passes from the water receiver to the steam
generator c. The latter consists of a double walled cylinder, in which after
loosening the screws and taking the lid off red hot bolts can be sunk. From
the lid of the steam generator there branches a tube r, which is in connection with
a distributing tube v arranged in the interior of the transport vessel. The steam
generator c rests with its handles on the two fork shaped supports f fixed on the
carriage framing, on which supports it can be easily slid and from which it can
again be taken off as easily. The transport receiver is also provided with a
taph for letting the air off and an admission pipe e on which there is adjoined a
hose pipe reaching to the pit, through which pipe the pit contents is sucked into
the receiver t. The tap for letting the air out can be connected by means of a
hose with the fire place in which the iron bolts are heated, in order to burn the
disagreeably smelling gases driven out from the transport tank.

page_text: When water is admitted to the red hot bolts, there is effected an abundant pro-
duction of steam. The thus produced steam enters by means of the pipe and the
distributing tube into the transport vessel t, and drives the air in the same out
through the tap h. After all the air has been driven out of the transport vessel,
the production of steam is then interrupted and the tap h as well as the steam
admitting tap i is closed, but the tap which closed hitherto the hose pipe leading
to the pit is opened. When water is allowed to enter by the rose through the
tap n, there is at once effected a condensation of the steam and a vacuum is pro-
duced. Consequently the exterior atmospheric pressure drives with great force
and velocity the contents of the pit into the transport receiver, so that also the
time of operation of the apparatus is essentially shorter than in the hitherto used
processes, and hereby the emptying which hitherto was very circumstantial and very
unpleasant for the neighbourhood is reduced to the possibly smallest space of time.
In the same manner the apparatus can be used, for emptying foundations, in
which underground water is accumulated, as well for emptying cellars, into which
by inundations or continuous rain water has penetrated.
The apparatus can further serve for another important use, that is for trans-
ferring and transporting liquids like spirit, petroleum, benzene, volatile oils and the
like. As in this case it would be inconvenient, the condensing steam water should
come into contact with the corresponding liquid so in such case water steam is not
used but the steam of the liquid which is to be treated. Therefore there is no water
in the vessel w, but the liquid corresponding to that to be driven out which is
conducted to the red hot bolt and provides the corresponding steam.
When fat and similar substances are to be treated, which do not evaporize
unchanged, but are decomposed at their increase of temperature, one can use also
water as liquids for the steam generator, but one must separate the small addition
of condensed water which will be in the under part of the transport tank, in the
known manner from the other contents.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
An improved apparatus for emptying cess pools, pits foundations, ditches as well
as for transferring petroleum spirit and the like consisting of an appropriate vessel
where by means of steam the air is driven out and the steam condensed and where-
by the production of steam can be effected by means of a steam generator in such a
manner that liquids or liquids similar to that to be treated are conducted for the
purpose to one or more red hot metal bolts placed in a suitable receiver all sub-
stantially as illustrated and described and for the purposes set forth.
Dated this 20th day of June 1898.
HERBERT HADDAN & Co.,
Agents to Applicant,
18, Buckingham Street, Strand, London.