Improvements in Apparatus or Vessels for the Continuous Evaporation or Concentration of Liquids.
Year: 1893

page_text: Date of Application, 25th Jan., 1893
Complete Specification Left, 14th Oct., 1893-Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus or Vessels for the Continuous
Evaporation or Concentration of Liquids.
I, EDWARD BAKER HARLOCK, of Vickers Street, Miles Platting, Manchester,
in the County of Lancaster, Chemical Manufacturer, do hereby declare the nature
of this invention to be as follows:-
The invention is designed to provide a vessel or retort in which liquids are
evaporated or concentrated wherein a continuous flow or current of the liquor may
be maintained, the inflowing liquor descending to the bottom of the vessel and the
outflowing liquor being drawn off from or near the surface.
It consists essentially in constructing the vessel with a mid-feather or diaphragm
extending internally down one side of the vessel, a receiving lip projecting out
from the vessel at one side delivering into the space or chamber formed by the
diaphragm, and a spout or lip at the other side placed at a lower level through
which the liquor flows from the vessel.
In carrying out the invention the vessel is constructed of porcelain glass or other
suitable material of circular or other convenient form in cross section.
At one side
a short distance below the upper edge I provide a projecting lip or ledge extending
a few inches beyond the side of the vessel and of a shape suitable for receiving the
liquor as it flows in from a spout attached to another vessel or reservoir. Inside
this receiving lip is placed a diaphragm extending downwards into the interior of
the vessel forming a space or chamber between it and the side of the vessel. The
chamber formed by this diaphragm is preferably open at the top and also at the
bottom and the upper edge of the diaphragm is below the top of the lip.
The liquor flowing into the vessel through the open mouthed lip flows down
through this space or chamber to the bottom of the vessel but in the event of any
obstruction occurring therein or the flow of liquor being too great to pass down
therethrough it can flow over the top into the body of the vessel without over-
flowing at the lip.
At the other side of the vessel I provide an outlet spout or second open lip
placed at a lower level than the receiving lip and shaped to deliver the liquor into
another vessel or into a tank or other receptacle at a lower level.
By this arrangement the liquor as it flows in at one side is conveyed to the
bottom of the vessel and the more concentrated or heavier liquor is displaced and
caused to run off from the top through the outlet spout.
A flange may be provided round the vessel to support it by, instead of resting it
upon the bottom.
Dated this 24th day of January 1893
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Apparatus or Vessels for the
Evaporation or Concentration of Liquids.
Continuous
I, EDWARD BAKER HARLOCK, of Vickers Street, Miles Platting, Manchester
in the County of Lancaster, Chemical Manufacturer, 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 invention is designed to provide a vessel or retort in which liquids are

page_text: "
evaporated or concentrated, wherein a continuous flow or current of the liquor may
be maintained, the inflowing liquor descending to the bottom of the vessel, and the
outflowing liquor being drawn off from or near the surface.
It consists essentially in constructing the vessel with a mid-feather or diaphragm
extending internally down nearly to the bottom of the vessel, to form a space or
passage for the inflowing liquor a receiving lip or funnel shaped mouth above the
diaphragm to direct the flow of the liquor into the space or passage formed by the
diaphragm, and a spout or lip at the other side placed at a lower level through
which the liquor flows from the vessel.
It will be fully described with reference to the accompanying drawings.
T
evaporated or concentrated, wherein a continuous flow or current of the liquor may
be maintained, the inflowing liquor descending to the bottom of the vessel, and the
outflowing liquor being drawn off from or near the surface.
It consists essentially in constructing the vessel with a mid-feather or diaphragm
extending internally down nearly to the bottom of the vessel, to form a space or
passage for the inflowing liquor a receiving lip or funnel shaped mouth above the
diaphragm to direct the flow of the liquor into the space or passage formed by the
diaphragm, and a spout or lip at the other side placed at a lower level through
which the liquor flows from the vessel.
It will be fully described with reference to the accompanying drawings.
Fig. 1, sectional elevation.
Fig. 2, plan.
Fig. 3, sectional plan.
Fig. 4, sectional elevation of modified form.
Fig. 5, sectional plan of same.
Fig. 6, sectional elevation of another modification.
Fig. 7, plan of same.
The vessel A is constructed of porcelain, earthenware or other suitable material,
and of circular or other convenient form in cross section.
A short distance below the upper edge at one side I provide a projecting lip
or funnel shaped mouth B extending a few inches over the side of the vessel, and
preferably a few inches into the interior, of any shape suitable for catching or
receiving the liquor flowing from the spout of another vessel above it or from a
pipe or tube.
Inside the vessel A and extending downwards from the lip or mouth B into the
interior of the vessel, is a diaphragm C forming a space or passage c between it
and the side of the vessel A into which the lip or mouth B opens. The diaphragm C
extends downwards to within a short distance of the bottom of the vessel, and the
passage c opens into it at the bottom.
The inner edge of the lip or mouth B at bis cut away, or is below the level of
the outer edge so that in case the passage e becomes blocked up, or the flow of
liquor is too great to pass through, it will flow over into the interior of the vessel
without overflowing at the outside of the lip.
Where a larger passage is required for the inflowing liquor the diaphragm C may
extend across from side to side of the vessel A. as indicated in dotted lines Figs. 4
and 5 and extend downwards either in a vertical or inclined direction, to any
desired distance.
Instead of the diaphragm C, a tube C₁ may be attached to or formed as
part of the side of the vessel A as shewn in Figs. 6 and 7 for the liquor to flow
through.
At the side of the vessel A opposite to the lip or mouth B I provide an outlet
spout D or second open lip placed at a lower level than the receiving lip or
month B, and shaped to deliver the liquor into another vessel or into a tank or
other receptacle at a lower level.
A number of vessels constructed in this way are placed in a suitable furnace
each vessel being placed at a higher level than the succeeding one so that a
constant flow of liquor is maintained from one to the next. The liquor flows into
the lip or mouth B at one side of the vessel and is conveyed by the passage c to
the bottom of the vessel, the more concentrated or heavier liquor is displaced and
caused to run off from the top or through the outlet spout D.
A flange may be provided around the vessel to support it by, instead of resting
it upon the bottom.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, 1 declare that what
I claim is :-
(1.) A vessel for concentrating liquids constructed of porcelain, earthenware or

page_text: similar material with a receiving lip or mouth at one side leading to a passage
formed by a diaphragm or tube attached to the side or sides of the vessel and open
at the bottom through which the inflowing liquor is carried to the bottom of the
vessel, and an outlet spout or lip at the other side throngh which the liquor flows
away substantially as described.
(2.) In a vessel for concentrating liquids the combination with the vessel A of a
lip or mouth B to receive the inflowing liquor, a diaphragm C or tube C¹ attached
thereto and forming part thereof to form a passage to convey the liquor to the
bottom of the vessel, and a spout or lip D at the opposite side through which the
liquor flows away substantially as described and shewn.
Dated this 9th dev of October 1893.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.