An Improved Air Filterer, Cooler, Heater, and Humidifier, Apparatus connected therewith.
Year: 1897

page_text: Date of Application, 8th June, 1897
Complete Specification Left, 5th Mar., 1898-Accepted, 20th May, 1898
PROVISIONAL SPECIFICATION.
An Improved Air Filterer, Cooler, Heater, and Humidifier,
Apparatus connected therewith.
and
We, DANIEL HALL and JAMES HENRY KAY, both of Stockport Road, Ashton-
under-Lyne, in the County of Lancaster, Sheet Metal Workers, do hereby declare
the nature of this invention to be as follows;
Our invention relates to methods of heating, cooling, filtering or humidifying
the air in factories, workshops, public buildings or institutions, where it is desir-
able that the air should be either heated, cooled, moistened or purified, and by the
most natural means attainable. Our apparatus consists of a shallow rectangular
metal case or chamber, placed on end in any suitable position within easy access
of the atmosphere outside the building, this air we introduce into the upper part
of our chamber through an orifice provided, and immediately below arrange two
or more horizontal box shaped filtering trays, one below the other at a suitable
distance apart, each tray being fitted with a removable lid of finely perforated
metal, and the floor of each tray being composed of finely woven metal gauze or
other suitable medium, the interior space in each tray is filled in between the lid
and floor of same with loofah or other suitable fibrous substance, above the upper
-a finely
filtering tray and running horizontal and parallel therewith centrally,-
perforated metal pipe is arranged from which a supply of clean water is constantly
issuing in an evenly distributed spray over the entire surface of the perforated
filtering tray lid, and thence through the fibrous filtering substance contained within
the tray, passing on through the fine metal gauze flooring to the lower filtering
tray or trays where the same filtering process is repeated, when, the water lastly
passes down to a shallow water tank formed in or by the flooring of the rectangular
case or chamber and which tank is provided with an independent water supply
regulated by a ball tap, the water in this tank is heated to a desirable temperature
through the medium of a steam pipe which passes through the entire length of
the water contained therein, on one side or other suitable portion of the interior
of our rectangular case or chamber a vertical or inclined air passage or shaft is
formed having its lower orifice open to and slightly above the surface of the heated
water contained in the tank last described, and the upper or outer delivery orifice
is conveyed to and connected with the main suction pipe of a fan placed in any
convenient position through which the purified air is now drawn, and forced
forward to the various points of distribution. By the action of the fan suction
in conjunction with the spray of water constantly percolating through the filtering
trays, the untreated atmosphere is thoroughly washed and purified in the process
of its being sucked through the water charged filtering trays and their fibrous
contents at a rate of speed much in excess of the progress of the water itself, and,
any fine particles of dust or sediment so extracted from the atmosphere in its pro-
gress are either caught by the filtering trays or pass to the lowest tank as deposit

page_text: matter. Any excess water or overflow in the lowest tank, may, by means of a
pump be conveyed back to an elevated cistern placed above our apparatus and
again passed and re-passed indefinitely through spray pipe and filtering troughs
as before described.
DANIEL HALL.
JAMES HENRY KAY.
An Improved Air Filterer, Cooler, Heater, and Humidifier, and
Apparatus connected therewith.
We, DANIEL HALL and JAMES HENRY KAY, both of Stockport Road, Ashton-
under-Lyne, in the County of Lancaster, Tin Plate Workers, 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:-
Our invention relates to methods of heating or cooling filtering, and humidi-
fying the air in factories, workshops, public buildings, or institutions where it is
desirable that the air should be either heated or cooled, and moistened and purified
by the most natural means attainable.
Our invention will be readily understood from the following description on
_reference to the accompanying drawings, which illustrate the apparatus constructed
according to the said invention in longitudinal section at Fig. 1 and transverse
section at Fig. 2.
Our apparatus consists of a suitable metal case or chamber a preferably rectan-
gular and placed in any suitable position within easy access of the atmosphere
outside the building. This air we introduce into the upper part of our chamber a
through an orifice provided say at d and immediately below this inlet we arrange
one or two or more horizontal box shaped filtering trays c one being below the
other, in the case of more than one tray being used, and at a suitable distance
apart each tray c is fitted with a removable lid c¹ of finely perforated metal and
the floor of each tray is composed of finely woven metal gauze or other suitable
medium; the interior space in each tray is filled in between the lid and floor
thereof and with loofah or other suitable fibrous substance. Above the filtering
tray or the uppermost tray and running horizontal and parallel therewith a pipe e
with finely perforated branches e¹ is arranged from which a supply of clean water
under pressure is constantly issuing in an evenly distributed spray over the entire
surface of the perforated filtering tray lid c¹ and thence through the fibrous filtering
substance contained within the tray c passing on through the fine metal gauze
Hooring to the lower filtering tray or trays (in case more than one tray is used)
where the same filtering process is repeated.
We prefer to form the branches el in two parts, a cover plate e² fixed to the pipe e
and a curved perforated trough e¹ fitted thereon (see Fig. 3) so that it can slide
on and off the part e to facilitate its removal for cleaning purposes.
The water passes down to a shallow water tank a² at the bottom of the rectan-
gular case or chamber a. This tank a² is or may be provided with an independent
water supply regulated by a ball tap i, the water in this tank is or may be if
desired heated to a desirable temperature by a steam pipe which passes through
the entire length of the water contained therein. On one side or other suitable
portion of the interior of our rectangular case or chamber a a vertical or inclined
air passage or shaft a¹ is formed having its lower orifice b open to and slightly
above the surface of the heated water contained in the tank a last described and
the upper or outer delivery orifice f is conveyed to and connected with the main

page_text: suction pipe of a fan not shown placed in any convenient position through which
the purified air is now drawn and forced forward to the various points where a
supply thereof is required.
By the action of the fan suction in conjunction with the spray of water con-
stantly percolating through the filtering tray or trays, the untreated atmosphere
is thoroughly washed and purified in the process of its being sucked through the
water charged filtering trays and their fibrous contents at a rate of speed much
in excess of the progress of the water itself and any fine particles of dust or
impurities so extracted from the atmosphere in its progress are either caught by
the filtering trays or pass to the lowest tank a² as deposited matter.
The water in the lowest tank may by means of a pump g and pipe h be conveyed
back to an elevated cistern placed above our apparatus or to the pipe e and again
passed and repassed through the spray pipes and filtering trays c as before
described.
The air admitted to the vessel may be heated in the upper part of the vessel a
by a steam coil or pipes as seen at k.
We are aware that air has been purified by drawing it horizontally through
moistened fibre or forcing it horizontally through a vertical stream of water but
the effect of our apparatus is that the air being purified is drawn in the same
direction as, but much more quickly than, the water in the filtering trays c and
chamber a and will not be impeded by the said water and it is then drawn upwards
in the same vessel by which means it parts with all its free water before passing
to the fan and to the room space or apparatus to which it is to be supplied.
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:-
1. A vessel for purifying air having an air inlet, admitting the air above and
upon a filtering tray or trays upon which water is sprayed and a fan communicating
with the vessel by a vertical shaft and outlet drawing the air upwards from bottom
to top of the vessel substantially as hereinbefore set forth.
2. The combination with such a cleansing vessel of a suitable pump for causing
the water to circulate substantially as herein before set forth.
Dated the 4th dow of March 1900
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square, Manchester.