Improved Method of Producing Air Currents for Ventilation and Disinfecting Purposes, and in Apparatus therefor.
Year: 1890

page_text: Da e of Application, 8th July, 1890
Complete Specification Left, 8th Apr., 1891-Accepted, 9th May, 1391
PROVISIONAL SPECIFICATION.
Improved Method of Producing Air Currents for Ventilation and
Disinfecting Purposes, and in Apparatus therefor.
1, ROBERT HARRIS REEVES, of Cedardale House, Putney Bridge Road,
Putney, Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to the adoption and application of the natural laws of
atmospheric disturbance, i.e. that whenever two bodies of air exist at different
temperatures, the colder air will travel towards the warmer air and so cause an air
current or wind.
The object of this invention is an improved method and apparatus for increasing
the weight or specific gravity of the atmosphere at the inlet over that at the outlet
for producing or inducing air currents on the above principles, for the ventilation of
sewers, drains, buildings and other places, by reducing the temperature of the air at
the inlet of say a drain or sewer to below the temperature of the air in the drain,
by which means a current will be caused to flow towards the outlet due to the
differences of temperature and weight of the two bodies of air, and carrying along
with it the foul air present in the drain which will escape at the outlet end.
For the purpose of my invention, the apparatus I prefer to employ is a series of
porous cells containing refrigerating materia land arranged near to, or within, the air
inlet of say, a drain or sewer over which cells water is allowed to flow and become
cold, the water then passing into the drain, lowering or reducing the temperature of
the air in that part of the drain to less than that of the atmosphere. This reduction
of temperature increases the weight or specific gravity of the inlet air which has
the effect of forming a continuous current from the inlet to the outlet.
In cases where the air is foul or requires purification, one or more of the
cells may contain a disinfectant which is picked up by the water and absorbed by the
air current.
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H. GARDNER,
Per R. Core Gardner,
Patent Agent, 166, Fleet Street, London,
Agent for the said Robert Harris Reeves.
COMPLETE SPECIFICATION.
Improved Method of Producing Air Currents for Ventilation and
Disinfecting Purposes, and in Apparatus therefor.
I ROBERT HARRIS REEVES of Cedardale House, Putney Bridge Road,
Putney, Engineer, do hereby declare the nature of my said invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
This invention relates to the adoption and application of the natural laws of
atmospheric disturbance; i.e. that whenever two bodies of air exist at different
temperatures the colder air will travel towards the warmer air and so cause an air
current or wind.
The object of this invention is an improved method and apparatus for increasing
the weight or specific gravity of the atmosphere at the inlet over that at the outlet
for producing or inducing air currents on the above principles for the ventilation of
sewers, drains, buildings and other places by reducing the temperature of the air at
the inlet of say a drain or sewer to below the temperature of the air in the drain by

page_text: which means a current will be caused to flow towards the outlet due to the
differences of temperature and weight of the two bodies of air and carrying along
with it the foul air present in the drain, which will escape at the outlet end.
For the purpose of my invention, the apparatus I prefer to employ is termed a
battery and is composed of a series of porous cells containing refrigerating material
and arranged near to or within the air inlet of say a drain or sewer, over which
cells water is allowed to flow and become cold, the water then passing into the
drain lowering or reducing the temperature of the air in that part of the drain to
less than that of the atmosphere.
This reduction of temperature increases the weight or specific gravity of the
inlet air which has the effect of forming a continuous current from the inlet to the
outlet.
In cases where the air is foul or requires purification one or more of the cells
may contain a disinfectant which is picked up by the water and absorbed by the
air current.
The diagram Figure 1 shews sections of a man hole A and ventilating shaft B.
The battery, Figures 2 and 3 consists of a swinging stand C with porous
cells D, D, D, charged with chemicals and is fixed to wall of man hole A.
From the water main a small pipe E is laid to man hole A and from this pipe
fine sprays of water from nozzles play on the porous cells. By the action of the
water playing on the cells D, D, the air around the battery is increased in weight
when it falls into the sewer setting up a continuous current to the next gratings
where it escapes.
If the cells be charged with a chemical disinfectant the fumes will be taken up
by the water spray, carried through the sewer by the current, and destroy the gas
given off from the sewage, it will also prevent decomposition of sewage in transit.
To enable a man to go down or up a man hole the bracket can be swung out of
his way:
This battery forms a constant air supply to buildings in all weathers.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
1 claim is
1. The hereinbefore described system of altering the temperature of gas or air in
drains and sewers and other places by permitting to mix therewith water reduced
in temperature in transit from a supply to such drain or sewer substantially as
set forth.
2. Fitting cells containing a cooling mixture within a chamber above a drain or
sewer and using a spray of water to impinge against the cells, said water to trickle
therefrom into a drain or sewer for lowering the temperature of air or gas therein and
induce a current which can escape at the next man hole or ventilating shaft in a
disinfected or a pure or nearly nure condition as described.
Ine on day of April 1891.
H. GARDNER,
166, Fleet Street, London, E.C.,
Agent for the said R. H. Reeves.
H. GARDNER,
166, Fleet Street, London, E.C.,
Agent for the said R. H. Reeves.