Improvements connected with Apparatus for Filtering or Humidifying Air to be Supplied to Buildings.
Year: 1894

page_text: Date of Application, 10th Mar., 1894
omplete Specification Left, 24th May, 1894-Accepted, 30th June, 1894
PROVISIONAL SPECIFICATION.
Improvements connected with Apparatus for Filtering or
Humidifying Air to be Supplied to Buildings.
I, JAMES STOTT, of 174 Fleet Street, City of London, Gas Engineer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to apparatus to be used for the filtration of the supply of
air to rooms or buildings of any description whether by forced or natural draught.
In the form of apparatus for humidifying air, a screen is made to travel over and
under one or more rollers or cylinders at top and bottom, the latter being fixed in
suitable journals or bearings at each end of a trough, said trough is kept supplied
with water or other liquid, through which the screen is made to pass on its move-
ment round the bottom roller or rollers. The driving pulley may be fixed to one
or both ends of either the top or bottom roller or cylinder, as may be found most
convenient. The apparatus is fixed in a framework of wood, iron, or other suitable
material.
In order that air may not pass between the top roller or rollers and the top
frame, I use a curtain of suitable length and depth which is kept moist or wet by
contact with the wet screen.
In order that the screen may always be kept on a tension, I insert a spiral spring
in a groove or slot formed in the upper ends of the two uprights.
When the screen is to be used for disinfecting purposes, the water can be
drawn off, and the trough filled with any of the well known disinfectants, with
which the travelling screen at once becomes saturated.
Instead of the trough being placed for supply of liquid, such liquid can be
sprayed on to the screen and collected in the trough.
The screen can be caused to travel by mechanical, or other power.
1004
Dated Gifs 10th day. Di Akaro
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said James Stott.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said James Stott.
COMPLETE SPECIFICATION.
Improvements connected with Apparatus for Filtering or
Humidifying Air to be Supplied to Buildings.
I, JAMES STOTT, of 174 Fleet Street, City of London, Gas 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:—
My invention relates to apparatus to be used for the filtration of the supply of
air to rooms or buildings of any description, whether by forced, or natural draught.
In the form of apparatus for humidifying air, a screen is made to travel over
and under one or more rollers or cylinders at top and bottom, the latter being
fixed in suitable journals or bearings at each end of a trough, said trough is kept
supplied with water or other liquid, through which the screen is made to pass on.
The driving pulley may be
its movement round the bottom roller or rollers.
fixed to one or both ends of either the top or bottom roller or cylinder, as may be
found most convenient.
The apparatus is fixed in a framework of wood, iron, or other suitable material.

page_text: In order that air may not pass between the top roller or rollers and the top
frame, I use a curtain of suitable length and depth which is kept moist or wet
by contact with the wet screen. In order that the screen may always be kept
on a tension, I insert a spiral spring in a groove or slot formed in the upper
ends of the two uprights.
When the screen is to be used for disinfecting purposes, the water can be drawn
off, and the trough filled with any of the well known disinfectants with which the
travelling screen at once becomes saturated.
Instead of the trough being placed for supply of liquid, such liquid can be
sprayed on to the screen and collected in the trough.
The screen can be caused to travel by mechanical, or other power.
My invention will be fully understood from an inspection of the annexed
drawings.
Figure 1 is transverse section, Figure 2 a front elevation, and Figure 3 a side
elevation of the simplest form of apparatus for the purpose of my invention, and in
which two rollers are employed.
Figure 4 represents a diagrammatic elevation of a screen carried by four
rollers.
Figures 5 and 6 views of a screen carried by three rollers, the apex of the
triangle being reversed in the two figures.
All the letters of reference apply to the same parts in all the figures.
A is a screen of any open meshed fabric, through which, air of any desired
temperature can pass, preferably, under pressure. B, B, are rollers for carrying
the screen, this being kept yieldingly taut by the springs C, C, arranged under the
axle ends of the upper roller B, and preferably in slots of the uprights D, D,
between which the fabric screen has motion under the action of the strap E from a
pulley F placed in any desired position, but here shown as from under the ceiling
of a room or ward of, say, a hospital, infirmary, or the like.
G is a trough for containing water, liquid chemicals, disinfectants, or the like for
saturation of the fabric screen.
The superfluous liquid taken up by the screen drains back to the trough, and as
evaporation occurs by contact of the air with the screen, the supply of liquid to
the trough can be maintained by the tap H, and any overflow can be carried away
by the outlet I at the opposite end, the liquid at all times being thus kept slightly
agitated by flowing from one end to the other, and prevents precipitation of
flocculent matter with which the liquid, or the trough may be charged.
The screen moves in the direction of the arrows, as seen at Figure 3, and to
ensure that all the air to be forced into a room shall pass through the screen,
I hang a curtain J from the upper cross piece K for its lower end to bear against
the screen for that purpose.
The screen can be arranged to be upright, as at Figures 1, 2, 3, and 4, or at an
angle, as at Figures 5 and 6, or be otherwise arranged, but I prefer the vertical
for many reasons. It can be arranged in an aperture made in the wall of a room.
It can be placed in a hall, or landing approaching a room, or in a window nitch for
natural draught, or it can be arranged behind a glazed front for air to be forced up
between it and the screen for passing through into the room, and thus be out of
reach of the inmates.
Where persons suffer from asthma, consumption, bronchitis, or other throat and
dung diseases, and also contagious fever, and other cases where a slightly moist air
is so beneficial for relief, the screen and trough can be arranged on small wheels
for removal from place to place, and can be set in any position for the incoming air
to impinge against and pass through, and if the supply of air be first warmed, as by
passing through a stove or a lamp heated chamber, the temperature, as well as the
purification of the room, can be regulated.
The warming of the air may be by steam or hot air pipes L, L, so arranged that
the required temperature of the inflowing air can be determined by an attendant.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The apparatus represented on the annexed drawings, consisting of a travelling
screen, a fixed trough, a suspended curtain, in contact with the screen as means by
which air supplied to rooms can be filtered, or be humidified for the purposes set
forth.
2. The combination with a travelling air filtering screen, the means or appliances
herein before described for temperating the inflowing air during the filtering or
humidifying process, substantially as set forth and represented in the annexed
drawings.
100
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said James Stott.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said James Stott.