Improvements in Means for Cooling Air in Rooms and the like.
Year: 1890

page_text: Date of Application, 2nd Jan., 1890
Complete Specification Left, 2nd Oct., 1890-Accepted, 8th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in Means for Cooling Air in Rooms and the like.
We, EVERARD HESKETH and ALEXANDER MARCET both of 23 St. Swithin's Lane
in the City of London Engineers do hereby declare the nature of this invention to be
as follows:-
.
The usual plan hitherto adopted for cooling air is by circulating brine in metal
pipes against which the air is impinged. The object of this invention is to obtain a
larger cooling surface than is practicable with pipes and to avoid the cost and incon-
venience of using pipes for this purpose, where temperatures below the freezing point
of water are not required. It has been attempted to produce the cooling effect by
allowing the brine to fall in drops from a tank having a perforated bottom into
another tank each drop thus forming a cooling surface without the intervention of
metal but this has not been successful owing to the brine or solution of chloride of
calcium absorbing moisture from the air and increasing in volume and becoming
weaker and requiring to be rectified by evaporation.. According to this invention,
water only is employed such water being cooled to the requisite degree and then being
caused or allowed to fall in a divided state into any convenient place or receptacle
such for instance as tanks arranged along the sides of the chamber to be cooled; or
the air may be cooled in a special chamber and the cooled air therefrom be passed into
the place where the low temperature is required.
Dated this 2nd day of January 1890.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, Agents.
COMPLETE SPECIFICATION.
Improvements in Means for Cooling Air in Rooms and the like.
We, EVERARD HESKETH and ALEXANDER MARCET both of 23 St. Swithin's Lane
in the City of London, Engineers, 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 usual plan hitherto adopted for cooling air is by circulating brine in metal
pipes against which the air is impinged. The object of this invention is to obtain a
larger cooling surface than is practicable with pipes and to avoid the cost and incon-
venience of using pipes for this purpose where temperatures below the freezing point
of water are not required. It has been attempted to produce the cooling effect by
allowing a solution of sodium or calcium to fall in drops from a tank having a
perforated bottom into another tank each drop thus forming a cooling surface
without the intervention of metal but this has not been successful owing to the
solution of chloride of calcium or sodium absorbing moisture from the air and
increasing in volume and becoming weaker and requiring to be rectified by
evaporation.
According to this invention water only is employed such water being cooled to the
requisite degree and then being caused or allowed to fall in a divided state into
any convenient place or receptacle such for instance as tanks arranged along the
sides of the chamber to be cooled or the air may be cooled in a special chamber
and the cooled air therefrom be passed into the place where the low temperature is.
required.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
11
Effecting the cooling of air in rooms or the like by first cooling water to the
requisite degree and then causing it to fall in a divided state in the chamber or
place to be cooled or in a special chamber from which the cooled air is passed into
the place where the low temperature is required.
Dated this 2nd day of October 1890
J. H. JOHNSON & Co.,
Agents.