Improvements in Apparatus for Clearing Liquids from Solid Matters Suspended in Them.
Year: 1898

page_text: Improvements in Apparatus for Clearing Liquids from Solid Matters
Suspended in Them.
We, THE ANGLO-CONTINENTAL GOLD SYNDICATE LIMITED, of 22, Austin Friars,
in the County of London, do hereby declare the nature of this invention (as
communicated to us from abroad by Wilhelm Rothe, of Gusten, Anhalt, Germany,
Engineer), to be as follows:-
This invention relates to means of cleaning a liquid from solid matters sus-
pended in it, by first subjecting the liquid to partial vacuum action so as to free
it from such air as may render the solid particles buoyant, and thus allowing
the solid matters to settle and to be withdrawn either continuously or inter-
mittently.
For this purpose we provide an open vat or settling tank and beside it an
upright pipe in which a partial vacuum is maintained by an air pump or ejector,
so that the liquid to be treated 18 forced by atmospheric pressure up the pipe,
while at the same time air 18 drawn from the liquid From the upper part of
the pipe the liquid which had been forced up decends by a pipe to a distributor
in the lower part of the settling tank. Here the solid matters gradually sink anl
pass away with some of the liquid by a diain at the bottom of the tank while the
rest of the liquid more or less purified passes away by an overflow at the top of
the tank.
In order that there may be more effectual settlement of the solid matters a
settling vessel closed at the top may be substituted for the tank, this vessel con-
taining near its top a float which is connected to the lever of a three way cock
provided with a tumbling weight At the bottom of the vessel is an outlet
closed by a valve connected to a loaded level. The thier way cock commands a
passage from the interior of the vessel to the top of the upright pipe and another
passage to the air, and is operated as follows: While the float is down a partial
vacuum is maintained in the closed settling vessel as well as in the upright pipe,
and the outlet valve being closed, the settling vessel is gradually filled by the
overflow from the upright pipe.
When the level so far uses that the float ascends so far as to carry the tumbling
weight over the dead centre, the cock is turned to as to cut off the settling vessel
from the vacuum and connect it to the air, whereupon the outlet valve opens
allowing a portion of the contents to escape at the bottom, this portion containing
deposited solid matters. The float having by its descent turned back the cock,
the vessel is again subjected to vacuum, the bottom valve closes, and a farther
supply enters the vessel from the upright pipe until the float again operates.
Thus there goes on continually an intermittent supply of the liquid a period of
quiescence during which much of the suspended solid matter is deposited, and
then a discharge of this matter with some of the liquid. There is also always
going on more or less overflow of the comparatively pure liquid from the upper

page_text: part of the vessel by a siphon pipe having sufficient column to over-como the
upward pressure of air due to the partial vacuum
Dated the 11th of June 1808
ABEL & IMRAY,
Agents for the Applicants.
Improvements in Apparatus for Clearing Liquids from Solid Matters
Suspended in Them.
We, THE ANGLO-CONTINENTAL GOLD SYNDICATE LIMITED, of 22, Austin Friars,
in the County of London, do hereby declare the nature of this invention (as
communicated to us from abroad by Wilhelm Rothe, of Gusten, Anhalt, Germany,
Engineer) and in what manner the same 16 to be performed to be particularly
described and ascertained in and by the following statement:
1
This invention relates to means of cleaning a liquid from solid matters sus-
pended in it, by first subjecting the liquid to partial vacuum action so as to free
it from such an as may render the solid particles buoyant, and thus allowing
the solid matters to settle and to be withdrawn either continuously or inter-
mittently.
For this purpose we arrange apparatus as we shall describe referring to the
accompanying diawings
Fig 1 18 a vertical section, and Fig 2 18 a plan, B is an upright pipe in which
a partaal vacuum is maintained by an air jump or ejector connected to its upper
pait by a pipe a so that the liquid to be treated is forced by atmospheric pressure
up the pipe B while at the same time air is drawn from the liquid. From the
upper part of the pipe B the liquid which had been forced up descends by a
pipe b to a distributor 1 in the lower part of a settling tank A. Here the solid
matters gradually sink and pass away with some of the liquid by a drain E at
the bottom of the tank while the rest of the liquid more or less purified [asses
away by an overflow C at the top of the tank Á
Thus there goes on continually an intermittent supply of the liquid and until
the pipe B is again charged a period of quiescence during which much of the
suspended solid matter 18 deposited, and then a discharge of this matter, with
some of the liquid
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, we declare that what we
claim 18.
Apparatus for clearing liquids from solid matters, constructed and operating
substantially as described with reference to the drawings
ABEL & IMRAY,
Agents for the Applicants.