Improvements in Apparatus for Cooling Liquids, Concentrating Solutions, and the like.
Year: 1899

page_text: Date of Application, 16th Aug., 1899-Accepted, 30th Sept., 4899
COMPLETE SPECIFICATION.
Improvements in Apparatus for Cooling Liquids, Concentrating
Solutions, and the like.
We, JULIUS OVERHOFF, of 7, Schlusselgasse, Vienna IV., in the Empire of
Austria, Engineer, and ALEXANDER COLAUTTI, of 35, Belvedèregasse, Vienna IV,
aforesaid, Engineer, 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 :-
i
The principal object of this invention is to provide improved apparatus to
rapidly and efficiently cool, by the action of air the condensing water of steam
engines, so that the same water can be used over and over again, it being only
necessary to add water to make up for that which is lost by evaporation during
the cooling but the apparatus is applicable for rapidly and efficiently cooling
liquids generally and for concentrating solutions and the like. The apparatus
constructed according to this invention presents the advantage of a very large
cooling surface occupying but a small ground space, and little height, so that
a small space and a small amount of power only are required for the apparatus.
The apparatus may be conveniently arranged in a pit below ground.
An apparatus constructed according to this invention is represented, by way
of example, in the accompanying drawing, in which
Figure 1 is a vertical section, and Figures 2 and 3 shew the essential parts
drawn to a larger scale.
The cooling surface proper consists of a number of stepped surfaces t arranged
near to, and parallel with, each other and above one another as shewn. The
rear ends of the said stepped surfaces do not cover each other but are arranged
obliquely the said ends protruding beyond those above them so that the liquid
is received on each of the said ends from troughs r arranged at intervals trans-
versely to the lengths of the steps and of such a length that the liquid descending
therefrom falls onto, the protruding ends of all the said stepped surfaces t.
order that the supply of liquid from the troughs r may be uniform throughout
their length the sides are provided with felt, or other absorbent material f, which,
as the liquid overflows from the troughs r, becomes saturated, and afterwards the
said liquid drops therefrom evenly along the bottom edges.
In
The feeding of the channels may be effected through the overflow pipes
shewn from the cross channel h to which the liquid is supplied from the pit, or
chamber, W, which receives the liquid to be treated.
For facili-
As the liquid flows over the stepped surfaces t air entering at 1 acts upon it
and partly condenses its vapours and the air charged with aqueous vapour passes
between the said stepped surfaces and thence between the troughs r.
tating the discharge of the moist warm air and for increasing the draught, a
chimney-like structure is preferably provided above the troughs r as shewn in
Figure 1. The course of the air is indicated by arrows.
The liquid cooled upon the stepped surfaces t passes therefrom at into the
well from which it can be withdrawn by a pump or otherwise.

page_text: Owing to the oblique position of the forward ends of the stepped surfaces t, the
greater part of the well k lies below the cooler, and the said well is but partly
covered as shewn.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is:-
1. Apparatus for cooling liquids, concentrating solutions and the like con-
sisting of, or comprising, stepped surfaces such at t arranged one above another,
so that air can pass along between them substantially as herein before described.
2. In apparatus of the kind referred to in the first claiming clause, arranging
the rear ends of the several stepped surfaces so that those below protrude beyond
those above and the liquid to be cooled is distributed over all the surfaces, sub-
stantially as hereinbefore described.
3. In apparatus of the kind referred to in the preceding claiming clauses, the
combination of troughs or the like, carrying absorbent material, arranged so as
to supply the liquid evenly to the stepped surfaces substantially as hereinbefore
described.
4. An apparatus for cooling liquids, concentrating solutions, or the like, con-
structed, or arranged, substantially as hereinbefore described and illustrated_in
the accompanying drawings.
Datod this 16th dox of turret 1800
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.