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Патент USA US2119038

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May 31, 1938.
Filed April l0, 1936
2 Sheets-Sheet l
' ' '
lMay 31, 1938.
w. M. BELL .
Filed April 1o, 19136-
2 Sheets-Sheet 2
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Patented May 3l, 1938
William M. Bell, Evanston, Ill.
Application April 10, 1936, Serial No. 73,667
3 Claims. (Cl. 257-121)
This invention relates to improvements in air
means, and under-ground air-cooling means con
which is adaptable for use in homes, industrial
necting said units.
plants and other buildings.
Another object of my invention is found in the
provision of an air-cooling conduit provided
within the construction of the basement floor of
a building or under the basement iloor.
Another object of my invention resides in an
One of the objects of my invention -is to pro
vide apparatus of this character which shall be
simple in construction, low in cost of installation
and effective in use for the purposes intended.
An important object of my invention is found
10 in the provision of novel under-ground air-cool
ing channels, passages or conduits arranged to
admit air therethrough to be cooled therein and
then discharged into desired points or areas of
a building; Vsuch air-cooling means including
means for filtering the air of dust and pollen or
other matters. and a multiple speed motor-driven
fan for regulating and controlling the passage of
the air through -the under-ground air-cooling
channels and into and through the building.
air-cooling conduit extended preferably in the
_form of a coil through a body of water, as for 10
illustration, through a coil in a well or cistern.
A still further object of my invention is found
in the provision of tubular or rectangular air
passages within the'walls'of a building provided
with air outlets into therooms and air inlets
connected to the blower unit.-
With the above and other objects in View, my'
invention consists in the novel combination, con
struction and arrangement of the parts and mem- y
tached drawings, described in the following speci
ñcations and particularly pointed out in the ap
or passages for admitting air into the under
pended claims.
ground cooling means either from the basement
~ In the drawings:
a point outside of the building; such valves also
being arranged to simultaneously admit air into
the under-ground cooling means from any two
or all of such points. .
Another object of my invention resides in the
novel construction and configuration of such
under-ground cooling means whereby a maxi
mum amount of cooling surface will be provided
in a minimum of used or available space.
cooling means can be made of tile, iron pipe, or
bers shown in preferred> embodiment in the at
Fig. 1 is a vertical section through a portion of 25
Fig. 1;
Fig. 3 is a vertical section through a modified
blower unit and air-cooling means;
Fig. 4 is a diagrammatic'illustration of one
form of air-cooling means shown in Fig. 3;
Fig. 5 is a sectional plan view through the
any other suitable‘ and preferably heat conductive
basement of a building showing the air-cooling
conduit formed as a part of the basementñoor;
Fig. 6 is a cross-section taken on line 6_6 of
Another object of the invention resides in the
provision of under-ground air-cooling means
which will causefa circulation of the air in diifer
ent directions in a minimum of confined space, as
shown for instance in Figs. 3 and 4 where the air
passes through interconnected semi-circular pipe
45 sections disposed in a vertical plane and arranged
laterally in interconnected sections.
A further object of my invention resides in
under-ground air-cooling means of metal having
apparatus embodying my invention showing an
application thereof to a building shown in, a
sectional elevation;
Fig. 2 is a cross-section taken on line 2-2 of
material, as for instance copper or rust-resisting
« iron or steel.
Another object of the invention is found in the
novel intake for under-ground air-cooling means
which intake includes valve-controlled openings
or one of the upper floors of the building or from
air blower having air humidifying >and heating
cooling, conditioning and circulating apparatus
Fig. 5;
Fig. 7 is a sectional plan view of a portion of a 40
basement of a building and showing an air-cool
ing conduit extending through the water in a
cistern or well, and
Fig. 8 is a cross-section taken -on line 8-8 of `
Fig. 7.
In the illustrations, I0 indicates the walls of
a building having a basement fioor‘ll and upper
floors I2. 'I'he basement floor I`I is below grade
a series of spaced air-deflecting walls or ñns to or ground level which is indicated by- I3.
50 cause a back and forth movement of the air
As shown in Fig. 1, the building walls are 50
through said air-cooling means and toincrease -provided. with tubular `or rectangular ducts indi
the area of the surface thereof.
cated respectively by I4 or I5 having outlet open
A still further object of the invention resides ings provided with grills I6.
in air-cooling, ñltering and humidifying appa
The apparatuses shown in Figs. 1 and 2 in
55 ratus comprising an air filtering intake unit, an cludes an air ñltering intake unit generally indi 55
cated by I1, a blower~ unit -generally indicated
by I8 and an under-ground air-cooling means
generally indicated by I3.
The air iiltering intake unit I1 consists of a
housing 20, preferably of metal, having a cir
cular intake 2I extended -through a screened
opening 22 into the top of housing 20, a circular
intake 23 adapted to admit air from within-the
basement of the building, a floor intake 24 adapt
ed to admit air from within the lower room 25
of the building through a grate 26 in the iloor
I2 and through an opening in one side of the
housing 20.
The air intakes 2|, 23 and 24 are each pro
As shown
in Fig. 1, air may be received into the intake
housing 20 through any one of the intakes 2|,
23 or 24, or through any two of such air intakes
or through all three of them by simple manipu
20 lation of the valves 21. In Fig. 1 I show air
15 vided With a circular gate valve 21.
being admitted from outside of the building
through intake 2I since the valves 21 for the
other two intakes are shown in closed position.
As shown in Figs. 1 and 2, the air intake unit
I1 is connected at its rear side with an under
ground air-cooling means shown in the form of
a metallic conductor I Il having an extension-
through the wall of the building and connecting
with the housing 20 so that air received into the
housing may be passed through the under-ground
air-cooling metallic conductor I9 into the blower
unit I8. The metallic conductor may be of any
suitable metal as for instance copper and pref
erably provided with spaced air deñecting walls
35 or fins 28 constituting bailles to an interrupted
ñow of the air through the conductor I9 and
providing additional heat conductive surfaces in
creasing the cooling eñìciency of this unit.
One or more removable air filters 29 of any
known design may be mounted within the intake
housing to iilter the air before its passage into
the cooling conductor I9.
'I'he air is drawn into and through the in
take 20 and through the cooling conductor I9
45 by means of a fan 30 driven by a motor 3I
mounted in the housing 32 of the blower unit I8.
If desirable, the blower unit may be provided
with an air iilter located between the fan 30
and the outlet of the air-cooling conductor I9.
From within the blower housing 32 the cooled
and ñltered air may be forcibly discharged
through the passage 34 into the conduit 35, which
is connected with the rectangular Wall conduit
I5, and through the grated opening I6 into the
55 room 25, or the valve 3B may be closed and the
air discharged through outlet 31 to other parts
of the building or the air may be passed through
passage 38 and distributed through a lateral
conduit 39 for discharge into the rooms through
00 a series of tubular wall passages I4.
Obviously, suitable valves, as for instance valve
36, -may be provided for all air distributing chan
nels leading from the blower unit I8 for con
water tank 4I which is automatically filled with`Y
water through the inlet pipe 42 controlled by a.
ñoat valve 43. The wick type humidifier frame
is mounted between the blower fan 30 and the air
A steam or hot water heating coil 44 is shown
positioned between the blower fan 3II and hu
midiñer frame 40 and in the event a hot air
heating unit is employed the hot air chamber
of the heater may be connected to the blower 10
unit I8 by means of a hot air duct 45 to dis
charge heated air into the blower unit I8 into
a section located between the air lfilter 33 and
the under-ground cool air connections.
Figs. 3 and 4 show an under-ground air-cooling 15
unit comprising substantially semi-circular pipe
sections 48 connected together to provide a wind
ing air chamber. To provide suiiicient air-cool
ing surface the pipe sections are placed in a
series of connected rows providing adjacent wind 20
ing passages for the circulation and cooling of
the air as shown diagrammatically in Fig. 4.`
As shown in Fig. 3, the inlet may be in the form
of a vertically disposed pipe 4GA extended above
the ground surface and terminating in a semi 25
circìilar pipe 46B provided with a screened in
let 1.
Referring now particularly to Figs. 5 and 6,
the air filtering intake unit I1 and blower unit
I8 are shown diagrammatically in spaced end 30
portions of the basement connected by a wind
ing air-cooling conduit 48 which is disposed be
tween a double basement iioor of spaced upper
and lower sections, respectively 49 and 50. The
upper floor section 49 is supported on air-deflect
ing walls 5I disposed between the ñoor sections
49 and 5I).
It is obvious that the conduit 48 can be ar
ranged or built in various forms or configurations
to provide the desired extended winding air 40
cooling passage, that is, the path of the air, which
is to be cooled, may be arranged to extend in a
back and forth or winding manner as between
the ñoor sections 49 and 50 along the sides and
around the ends of the walls 5I. In Fig. 5, 'this 45
air-cooling passage is deñned by the spaced ín
termediate parallel walls 5I which extend alter
nately from one basement side wall 52 toward
and to a spaced distance from the other side Wall
52 to thus provide alternately arranged end pas 50
sages 48A connecting the ends of the parallel
passages 48 one with the other. This back and
forth movement of the air will extend from the
intake iioor opening 53 at the bottom of the
intake unit I1 to the outlet floor opening 54 at 55
the lower end of the blower unit I8.
It is also contemplated that a similar air
cooling system could be provided under a single
basement floor by the use of iron pipes or con
crete conduits arranged in a circuitous or wind
3 and 4.
In the modifications shown in Figs. '7 and 8 I
trolling and regulating the discharge of air to
show an air-blower unit I8 similar to that shown
65 the different rooms. Likewise, the air inlet valves
in Fig. `3 discharging cooled air through conduits
35, 31 and 38 to the wall tubes I4 and other parts
o-f the building but in the present adaption the
21 may be operated to provide inlet .of air from
any one of such inlets, or any two of such inlets
or all of the inlets.
In Figs. 3 and 4 I show a modified form of
70 air-cooling means and also show how humidiñ
cation and air heating means may be provided
in the blower unit. One form of humidifying
means is indicated by the frame 40 constituting
a wick type humidiiier which is kept moistened
75 by capillary action through its immersion in the
ing manner, as for instance, that shown in Figs.
air is cooled by its passage through a, coiled pipe
55 disposed within the water of a cistern or well
indicated by 56. The air cooling coil 55 is con 70
nected at the intake end with an air intake pipe
51 extended above the top 58 of the cistern and
the outlet end of the coil 55 is connected with
the blower unit I8 by any suitable extended pipe
59 preferably extending underground.
2,1 19,088
I claim:
into said air intake unit from the basement, or
1. 'I'he combination with a building, of air con
ditioning apparatus comprising an air intake
unit, a blower unit, both of Said units being
mounted within the building, a plurality of air
intakes adapted to admit air into said air intake
unit from the basement, or room above the base
ment or from outside of the building, valves for
controlling said plurality of air intakes whereby
10 air may be admitted into said air intake unit
through one or more or all of said plurality of
I air intakes, an under-ground air cooling con
duit connecting said air intake unit with said
blower unit. removable air ñltering means at the
15 intake and outlet of said under-ground air cool
ing conduit, air-heating means in said blower
unit, and air-humidifying means between said
air-heating means and the air outlet of sai
blower unit.
room above the basement or from outside of the
building, valves for controlling. said plurality of
air intakes whereby air may be admitted into said
air intake unit through one or more or all of said 5
plurality of air intakes, an under-ground air
cooling conduit connecting said air intake unit
with saidblower unit, means for iiltering> the
air pas/sing through said under-ground air cool
ing conduit, air-heating means in saidblower
unit, and air-humidifying means between saidl
air-heating means and the air outlet of said
3. In air cooling apparatus as embodied in
claim 2 and including >said air cooling conduit 15
constituting a winding conduit formed by a licor
spaced below the basement fioor‘of the building
and space‘d partition walls between said floors,
said partition walls being provided with spaced
2. In a building, air conditioning apparatus openings to permit the air to pass between said 20
comprising an air intake unit, a blower unit, both floors in a winding manner „from said air intake
of said units being mounted within the building, unit to said blower unit.
a plurality of -air intakes adapted to admit air `v
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