Improvements in or connected with Refrigerating or Cooling Chambers.
Year: 1893

page_text: Date of Application, 24th Feb., 1893
Complete Specification Left, 16th Oct., 1893-Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Refrigerating or Cooling
Chambers.
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 object of our invention is to provide refrigerating or cooling chambers with
means whereby a low and equable or practically equable temperature is maintained
therein whilst a circulation of dry air is also maintained it being necessary for the
preservation of certain goods or provisions that the air be in constant circulation
and be dry or free from excess of moisture. The arrangement is such that when
the refrigerating machine is stopped the circulation of air and the low temperature
in the said chamber are still maintained.
According to our invention we provide in the refrigerating chamber a hollow wall
or hollow walls or a flat tank or flat tanks or the like presenting a considerable
cooling surface and into this or these the cooling medium is passed. In proximity
to this hollow wall or tank or these hollow walls or tanks or the like we provide a
wall or walls which has or have or leaves or leave an opening or openings at or
towards its or their upper part or parts and also at or towards its or their lower part
or parts so that there is a space or spaces between the tank or tanks or the like
and the wall or walls the air in which space or spaces becomes cooled by contact
with the tank or tanks or the like and descends and passes out into the chamber, air
being by this caused to pass into the said space or spaces from the upper part of
the chamber to be in turn cooled by contact with the tank or tanks or the like and
to return in its cooled condition to the said chamber and so a constant circulation
of air is maintained in the chamber. This air is moreover deprived of a consider-
able amount of moisture which will deposit upon the cold surfaces and drain off
them and run out from the chamber by any suitable outlet. Owing to the tank or
tanks or the like containing a considerable amount of the cooling medium the
refrigerating machine by which it is or they are supplied may be stopped for a time
without danger of injury to the goods or provisions in the chamber as the circulation
and cooling of the air will be maintained so long as the cooling medium in the tank
or tanks or the like is of a lower temperature than that of the atmosphere of the
chamber. There may be one tank or the like or any convenient number thereof
arranged in any suitable part or parts of the chamber and the walls in proximity
thereto may be arranged so as to form passages for the air on one or both or all the
sides of the tank or tanks or the like and passages may be provided to draw in
the air from any convenient part or parts of the chamber. Although we do not
limit ourselves to precise details a convenient arrangement is as follows:-We will
describe it as applied to one side of the chamber but it will be understood that it
may be applied to two or more sides of the chamber and in intermediate positions
in the chamber where the chamber is of considerable size or of a shape requiring
such arrangement.
A flat metal tank is supported at a short distance from the side wall of the
chamber so as to leave a space between them and also between the top of the tank
and the top of the chamber and between the bottom of the tank and the bottom of
the chamber. A wall or diaphragm is situated a short distance in advance of the
tank it also leaving a space at its upper part and at its lower part. A diaphragın
extends horizontally from the top of the tank leaving a passage between the upper
side of the said diaphragm and the top of the chamber and also between the lower
side of the said diaphragm and the top of the wall in front of the tank. There are

page_text: thus formed two passages for air from the upper part of the chamber on either side
of the horizontal diaphragm and down between the wall of the chamber and the
back of the tank and between the front of the tank and the diaphragm in advance
thereof. The air becomes lowered in temperature by contact, with the tank and
descends and re-enters the chamber at the lower part thereof to gain pass through
the spaces and so on thus maintaining a circulation of air. Moisture from the air
deposits upon the cold surfaces of the tank and drains therefrom-into a gutter
beneath from which it passes through a syphon pipe or other suitable trapped
outlet which will allow the water but not the cold air to pass out. It will be
understood that the passages may be arranged to pass air in contact with either one
or the other side of the tank only or in contact with both sides and that the tanks
may be situated away from the walls of the chamber in any suitable position or
positions therein diaphragms being provided on either side of the tanks and the
horizontal diaphragms extending in any desired direction to draw in the air from
auy required part or parts of the chamber.
Dated this 24th day of February 1893.
J. H. JOHNSON & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Refrigerating or Cooling
Chambers.
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 object of our invention is to provide refrigerating or cooling chambers with
means whereby a low and equable or practically equable temperature is maintained
therein whilst a circulation of dry air is also maintained it being necessary for the
preservation of certain goods or provisions that the air be in constant circulation
and be dry or free from excess of moisture. The arrangement is such that when
the refrigerating machine is stopped the circulation of air and the low temperature
in the said chamber are still maintained.
According to our invention we provide in the refrigerating chamber a hollow
wall or hollow walls or a flat tank or flat tanks or the like presenting a considerable
cooling surface and into this or these the cooling medium is passed. In proximity
to this hollow wall or tank or these hollow walls or tanks or the like we provide a
wall or walls which has or have or leaves or leave an opening or openings at or
towards its or their upper part or parts and also at or towards its or their lower
part or parts so that there is a space or spaces between the tank or tanks or the
like and the wall or walls the air in which space or spaces becomes cooled by
contact with the tank or tanks or the like, and descends and passes out into the
chamber, air being by this caused to pass into the said space or spaces from the
upper part of the chamber to be in turn cooled by contact with the tank or tanks
or the like, and to return in its cooled condition to the said chamber and so a
constant circulation of air is maintained in the chamber. This air is moreover
deprived of a considerable amount of moisture which will deposit upon the cold
surfaces and drain off them and run out from the chamber by any suitable outlet.
Owing to the tank or tanks or the like containing a considerable amount of the
cooling medium the refrigerating machine by which it is or they are supplied may
be stopped for a time without danger of injury to the goods or provisions in the
chamber as the circulation and cooling of the air will be maintained so long as the
cooling medium in the tank or tanks or the like is of a lower temperature than
that of the atmosphere of the chamber. There may be one tank or the like or any
convenient number thereof arranged in any suitable part or parts of the chamber

page_text: and the walls in proximity thereto may be arranged so as to form passages for the
air on one or both or all the sides of the tank or tanks or the like and passages
may be provided to draw in the air from any convenient part or parts of the
chamber. Although we do not limit ourselves to precise details a convenient
arrangement is as follows-we will describe it with reference to the sectional
elevation shewn in the accompanying drawing as applied to one side of the chamber
but it will be understood that it may be applied to two or more sides of the
chamber and in intermediate positions in the chamber where the chamber is of
considerable size or of a shape requiring such arrangement.
A flat metal tank A is supported at a short distance from the side wall B of the
chamber so as to leave a space C between them and also between the top of the
tank and the top of the chamber as at c³ and between the bottom of the tank and
the bottom of the chamber as at c. The tank A is shewn as being supported by
feet one of which is shewn at D.
A wall or diaphragm E is situated a short
distance in advance of the tank A so as to leave a space F between itself and the
tank communicating with the room at its upper part 2 and at its lower part f
A diaphragm G extends horizontally from the top of the tank A leaving a
passage H between the upper side of the said diaphragm and the top I of the
chamber and also between the lower side of the said diaphragm and the top of the
wall E in front of the tank (the opening *). There are thus formed two passages
for air from the upper part of the chamber on either side of the horizontal
diaphragm and down between the wall of the chamber and the back of the tank
and between the front of the tank and the diaphragm in advance thereof. The air
becomes lowered in temperature by contact with the tank and descends and
re-enters the chamber at the lower part thereof to again pass through the spaces
and so
on thus maintaining a circulation of air. Moisture from the air
deposits upon the cold surfaces of the tank and drains therefrom into a gutter J
beneath from which it passes through a syphon pipe or other suitable trapped
outlet which will allow the water but not the cold air to pass out. It will be
understood that the passages may be arranged to pass air in contact with either one
or the other side of the tank only or in contact with both sides and that the tanks
may be situated away from the walls of the chamber in any suitable position or
positions therein diaphragms being provided on either side of the tanks and the
horizontal diaphragms extending in any desired direction to draw in the air from
any required part or parts of the chamber.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what we
claim is.-
1. In refrigerating or cooling chambers the combination of a cooling surface or
cooling surfaces with a wall or walls in proximity thereto and leaving a space or
spaces with openings above and below to cause a circulation of air through the said
space substantially as and for the purposes hereinbefore described.
2. In refrigerating or cooling chambers the combination of a cooling surface or
cooling surfaces with a wall or walls in proximity thereto and leaving a space or
spaces with openings above and below and a diaphragm extending to cause air to
pass into the said space or spaces from any desired part of the chamber all
substantially as and for the purposes herein before described.
3. The arrangement of parts in combination with a refrigerating or-cooling
chamber substantially as and for the purposes herein before described and shewn in
the accompanying drawings.
J. H. JOHNSON & Co.,
Agents.