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Патент USA US2115330

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April 26, 1938.
w. w. EAGER
2,115,330
VENTILATION CONTROL
Filed Nov. 28, 1934
f]? Van/0r
HZ WEqger
2,115,330
Patented Apr. 26, 1938
UNITED STATES PATENT o-rrica
2,115,330
VENTILATION CONTROL
Wesley W. Eager, Venice, Calif.
Application November 28, 1934, Serial No. 755,183
9 Claims.
This invention relates to improvements in
windows and has particular reference to im
proved means for controlling ventilation through
a- window of the type of construction disclosed in
:1 - my copending application Serial Number 667,627,
?led April 24, 1933, now Patent No. 2,069,435,’
patented February 2, 1937.
The window construction referred to comprises
a'plurality of transparent panes rigidly mounted
(CI. 98-88)
by the louvres are caused to remain in any se
lected position of adjustment without fastening.
Still another object is to provide a ventilation
controlling damper possessed of all the above
described advantages, and yet so constructed
that it interferes with a minimum of horizontal
vision through the window.
With the object of the preceding paragraph in
f in a frame, the panes being in vertical alinement
view, a still further object is to provide a modi?ed
form of ventilation-controlling damper for a
but in inclined, parallel planes, with the result
that the proximal‘ edges of each two adjacent
window of the character indicated, which, in
order to interfere with vision through the window
panes or sashes are spaced apart, thus de?ning
to an even smaller degree is composed of trans
a ventilating aperture therebetweemand pref
erably substantially in horizontal alinement. The
ventilation controlling damper disclosed in con
junction with this window construction is, in
parent material.
the form of a frame, associated with each of
the ventilating apertures and carrying a louvre
20 which is adjustable to control air-?ow through
the‘ aperture. The louvres are operable simul
taneously by an operator connected to all; and
since the louvre frames are removably mounted
either by being pivoted or merely loosely set into
25 their respective apertures, each louvre is con
nected to the operator by a mechanism which is '
freely disengageable to permit withdrawal of the
frame from the aperture. >
An object of the present invention is to provide
» a novel type of adjustable louver for use with the
Window construction hereinabove described, but
which represents an improvement over the louvre
disclosed in the said copending application.
A more detailed object is to providev a ventila
35 tion damper wherein the entire device is adapted
to be removed from operative position within the
associated ventilating aperture, thereby permit
ting easy access to the opposite face of the win
dow, and yet which includes an adjustable flow
regulator which remains at all times connected
to the operating means which is disposed'at a
The invention possesses other objects and 15
features of advantage, some of which, withv the.
foregoing, will be set forth in‘ the following de
scription of the preferred form of my invention
Which is illustrated in the drawing accompanying
and forming part of the speci?cation. It is to
be understood that I do not limit myself to'the
showing'm'ade by the said drawing and descrip
tion, as I may adopt variations of the preferred
form within the scope of my invention as. set
forth in the claims.
Figure 1 is a vertical sectional view taken
through a ventilation controlling damper em?
bodying the principles of the present invention,
and a portion of each of the two adjacent win
dow frames.
0
' Figure 2 is a fragmentary, vertical sectional
view taken upon the line 2-2 of Figure 1, show
ing the manner of interconnection between the
operator and the adjustable louvre blades.
Figure 3 is a slightly enlarged view similar to
Fig. 2, but taken upon the line 3—3 of Fig. 2 with
the direction of view as indicated.
'
Figure 4 is a vertical sectional view taken upon ‘
the line 4-4 of Fig. 3 with the direction of View.
as indicated to show the manner of mounting of
remote point, preferably concealed within the
the counterbalance.
Figure 5 is a view similar to Fig. 1 showing a
window frame.
modi?ed form of damper member.
,
.
A further object is to provide a novel construc
45 tion of the louvre blades whereby are gained
manifold advantages such as rigidity and strength
of construction, economy of manufacture, ease
control of the present invention comprises a
damper member associated with a ventilating
and quietness of operation, ef?ciency with respect
withdrawal of the entire damper member from
to control of air flow therethrough, and the valu
able feature of excluding a large proportion of
street noise without impairing ef?ciency of air
flow.
Another object of the present invention is to
provide a novel type of counterbalan'cing device
operative position within the aperture. to afford
access to the opposite face of the window. The
damper member is provided with means regulable
to control ?ow of air through the aperture, which
50
55 ' whereby ease of operation is enhanced and where
In terms of broad inclusion, the ventilator
aperture and pivotally mounted so as to permit '
control means is always connected to its opera
tor regardless of the position of the damper
member, this being effected by means of a rotary 55
)'
2
2,115,330
shaft disposed coaxially with respect to the damper
tles l8 as hereinabove explained.
member. This shaft is connected to the regu
lable element of the damper and to an operating
upper member 26 is preferably struck from a
single sheet of metal, the blades 28 being de?ned
by lines of severance extending longitudinally of
‘member which is common to all of a plurality
(Ii
of dampers, the connection being such that move
ment of the rod effects adjustment of all the
The entire
the sheet, these lines being spaced apart a dis
tance equal to the width of the louvre blades
28, after which the sheet is deformed by extrudé
rods simultaneously.
ing the blades 28, bending them from‘ the plane
.More speci?cally described and referring par
,tici‘ilarly to Figures 1 to {l inclusive, my improved of the sheet into planes inclined with respect,
,thereto, thereby de?ning a louvre construction 10
10' ventilation control is shown in operative asso
ciation with a Window construction comprising
. a plurality of panes or sashes 6, ‘I, rigidly ‘mount
presenting a series of long, narrow ori?ces 3 I. At
the same time that the’ louvre blades 28 are thus
ed at their ends in a suitable frame, a portion
formed the ends I‘! are struck into perpendicu
larity with the body of the sheet, thereby present
, These panes are in vertical alignment, but in-‘ ing end ?anges adapted to be .engaged easily 15
of which is indicated at 8' in Figures 2 and 3.
stead of being in vertical planes, they are tipped
jto inclined positions as clearly shown in Fig
ure 1. Preferably the direction of inclination of
each pane is upwards and inwards toward the
room or other enclosure with which the window
construction is associated. The lower 'edge ll
of the upper pane ‘6 ‘of each two adjacent panes
is spaced in a substantially horizontal direc
tion from‘the upper edge I2 of the pane 1 im
mediately therebelow, thus de?ning a ventilating
aperture therebetween."
I
A damper member, indicated in its entirety a
M, is associated with each aperture in l3, and
is mounted therein in such a manner as to per
mit of its ready removal from operative position
therein, 'so as to make access to the outside face
This is accomplished
by mounting the ends l1. of the damper member
upon axially aligned tubular pintles £8 with re
‘ I6 of the window possible.
‘ ‘ spect to which the damper member [4 is free
to rotate. Each of these pintles 18 extends
through and is rigidly secured to one of the
vertically extending side members’ IQ of the win
dow frame 8. This permits movement of the
40 damper member M from its closed position, illus
trated in full lines on Figure l, to its withdrawn
position, indicated in dashed lines at 2! upon
the same ?gure, the axis about which the damp
‘ er member I4 turns being disposed adjacent one
45 side edge of the ventilating aperture l3. When
the damper member is in withdrawn position, the
major portion of the-aperture-l'ii is unobstructed,
upon the pintles i8 and the contact ?anges. 24
are formed at the lower edges of the ?anges l‘l.
Along the inner and outer sideedges 32 and 33,
respectively, of the upper damper member 26,
reverse ?anges 34 and 36, respectively, are formed. 20
The inner ?ange 34 de?nes a channel 31, extend
ing along the inner edge of the damper member
and opening downwards so ‘as to engage the upper
edge l2‘ of the lower pane ‘l. The ?ange 36 at
the outer edge of the damper member is simi
larly shaped but de?nes a channel 38 which
opens upwards to engage the lower edge ll of
the upper pane 6., Within the bottom of each
of these channels 31 and 38 a cushioning strip
39 of resilient material is provided which makes 30
not only for quieter operation of the device but
also establishes a tighter seal between the damp.
er member and the proximal panes 6, 1.
,The lower damper member 21 is constructed
in substantially the same manner, i. e., it is
preferably struck from a single ?at sheet of metal 1
by forming lines of severance extending longil»
tudinally thereof and extruding the metal which
lies between these lines so as to form louvre blades
4| in spaced, parallel relationship, these blades
being rigidly supported by end ?anges 42 formed
at the ends of the blank from which the mem
ber is formed. The lower member 21 is suspended
below the upper member 28 by preferably four
links 43. Each of the two links proximal to
the inner edge of the damper is pivoted at its
upper end as by a pin 44 to the upper damper
member 26, preferably to one of the end ?anges
H, and its lower end is similarly pivoted as
by a pin ‘46 to an end ?ange 42 of the lower
40. j
therebyv permitting a person to thrust his arm
through the aperture and giving access to the
50 outer face i 6 of the pane 1 below that aperture
for the purpose of cleansing and the like. When member > 21. This manner of suspending the
lower member 21 upon a plurality of parallel piv-. '
in operative. position, the dampermember is sup
ported at its ends upon ?anges 22. extending oted links'permits'movement of thelower mem
ber 2'?- in arcuate, translatory motion from its.
horizontally'from the window frame 8. Prefer
I open position, illustrated in full lines uponLFig 55
55 ably’ a strip 23 of felt or other cushioning ma
terial is disposed upon the upper surface of ure 1, to its closed position, indicated in dashed
each supporting ?ange 22,’ so as to reduce the lines at El upon the same ?gure. It will .be observed that when in its closed position each
noise coincident with moving the damper mem
ber‘ I4 to operative position, and to establish blade 4! of the lower member 41 vmakes contactv
60 a more nearly air-tight seal between each sup
porting ?ange and the portion 24 of the louvre
frame M which is supported thereby
The damper member I4 is composed of two
parts 26 and 21. The portion 26 is capable of
movement only’about the axis of the pintles I8
whereas the part 21 is capable of movement to
ward and away from the part 26, as will be
explained more fully hereinbelow.
The upper, part 26 of the damper member Ill.
de?nes a. louvre,,the blades '28 of which are in
spaced parallel relationship and are inclined pref
erably upwards and outwards. These blades 28
are retained rigidlyin'tl'iis position with respect
‘to each other by being secured to and preferably
75. integral with the ends I? which engage the pin
50
with the lower edge of one of the blades 28 of
the upper member 26 and with the upper edge
of the next adjacent blade 28, thereby effectually
closing the ori?ce 3| between those two blades
28. However, when in lowered or'open position, .7
each blade 4| of the lower member 21 makes 65'
contact along its upper edge with the’ lower edge
of an upper 28, whereas the lower edge of each
blade 4| is spaced materially; from the-upper
member 28, thereby leaving the ori?ce 3| open
and permitting flow of air through, as indicated 70
byv the arrowyF on Figure 1.
'
.
7
Since flow through the damper is not in a
straight path but in a more or less sinuous path,
street noises will be excluded to a very material
extent without seriously impeding flow of air.
2,115,330
This advantage is enhanced by providing strips
56 of sound-dampening material, such as felt,
upon the under faces of the upper louvre blades
28.
-
,
The links 43 which are proximal to the outer
edge 33of~the upper damper member 26', in
stead of' being mounted upon pins,“ as are the
inner links .43, are made rigid with a shaft 5'!
which is non-circular, preferably square, in cross
10 section and which extends through. and is ro
tatable with respect to the aligned tubular. pintles
18'. At least oneend, say the end 58, of the shaft
51. extends far enoughv beyond the associated
pintle l8 to receive a plurality of’ counterweight
15 units BI, 62, one of which is provided with a
lever arm 53 (see Figure 4) pivotally connected,
as by pin 64, to a vertically extending operating
rod 56.
These parts are so proportioned and ar
ranged that longitudinal reciprocation of the rod
' 68 .will cause the shaft 5'! to rotate through ap
proximately 60 degrees, carrying with it the links
43 which are mounted thereon. ‘In this manner
the lower member 21 of the damper I 4 will be
moved upwards and to the left to its closed posi
tion. Preferably the two suspension links 43 at
each end of the damper member are intercon
nected by a horizontally extending link 61 to in
sure thatall links turn through the same num
ber of degrees. '
30'
'
Therod 66 extends vertically inside the window
frame where it is concealed from View and where
it is adapted to» be connected to the shaft 58 of
each of the dampers hi, it being understood that
a plurality of‘such dampers are employed in each
‘window. Thus it may be understood that by
proper manipulation of the rod 66 by any suitable
units 13 to be slipped under the shaft 57s when
the device is assembled. Obviously,.-these units
13 are placed on- the shaft in such position'
that their respective centers of gravity are at
their highest position when the louvre member
2? is in its lowest position, and since the, aim
is to employ enough of the units 13 effectually to '
counterbalance the weight of the lower louvre
member 21, the result is that this adjustable por
tion of the ventilation-controlling damper will re, 1,0
main-in whatever, position to which it is moved
with it is again adjusted by proper manipulation
of the operating rod 66.,
Since the shaft 5'! is the sole means of inter- .
connection between the operating rod 66 and 1.5
that portion of the damper M which is adjusted
in order to control rate of air flow, and since the
axis of this shaft coincides with the‘ axis of the
pinltes l8 about which the entire damper l4
swings, it becomes obvious that the entire damper 20
can be withdrawn from operative position indi
cated in dashed lines at 2| without the necessity
of disconnecting the damper from its operator.
Moreover, because of the free suspension of the
lower member 27 this manipulation of the entire
damper M can be effected without regard to the
position of the lower member 21 withrespect to
the upper member 28. I
,
If it is desired to screen the window, each of
the apertures l3 may be provided vwith suitable 30
screening l6, preferable upon the upper face of
the upper louvre member 26, in which position
it will protect the entire louvre member by. pro
viding a flat surface upon which objects can be
laid and where it will prevent small articles from
dropping between the louvre blades to fall outside
operating means, such as a handle or lever (not
shown) extending through the frame 8 to an ac
the building.
cessible position, all of the dampers ll! of the
window may be operated simultaneously.
In order to obtain maximum e?iciency of op
eration with respect to facility of movement and
the hereinabove described construction in ex
' absence of noise, I have found it desirable to em
ploy the counterweights El and 62. These two
45 counterweight members could be constructed as a
single unit if it were not desirable to make al
lowance for various sizes of damper l4. That is
to ' say, since different lengths of the damper
members should be provided to accommodate
50 windows of different widths, and since a longer
damper member will require heavier counter
weights than one of smaller dimensions, I ?nd
it desirable to employ different types of counter
weights. The counterweight 62-is intended to
55 counterbalance the operating rod 66, and since
this rod will be of the same size for any width of
window, the counterweight 62 can. be of standard
dimensions. It is, however, provided with a
weight portion ‘H opposite the shaft ‘57 from the
60 lever arm 63, the result being that the weight of
the rod 66 is diametrically across the axis of the
shaft 51'from the center of gravity of the counter
weight 62. However, the other counterweight BI
is intended to counterbalance the lower, movable
65 louvre member 21, and since these will be of ‘dif
ferent weights, as determined by the width of the
window to be'accommodated, the counterweight
BI is built up of a number of units 13, the num
ber of which is determined by the weight of the
70 particular louvre member 27 which is to be
counterbalanced. One of these units “I3 is pro
vided with tubular bushing '15 through which
extends a hole '54 which is complementary to the
cross. sectional con?guration of the shaft 51,
75 thereby permitting the appropriate number of the
.
Attention should be directed to the efficiency of
cluding water.
Any water running down' the 41)
outer face of the pane 6 is prevented from ?owing
into the room by capillary attraction because the
side ‘l? of the trough 36 extends upwards ma
terially from the bottom 18 of the trough and
any water which is entrapped Within thetrough
is permitted to escape through weep holes which
are provided at suitable locations throughout. the
length of the trough 36. Inasmuch .as the sta
tionary louvre blades 28 slope'upwards and out
wards, they serve .e?ectually to prevent water
from being blown into the room by sudden gusts
of Wind.
‘
I
Another advantageous feature of ventilation
controlling shutter of the present invention is
that it is of such design that it avoids the neces
sity of using binding strips for the edges of the
panes 6, 1. In this manner, the amount of
opaque material in the entire window assembly is
materially reduced, and accordinglyithe degree
of visibility through the window is considerably 60
enhanced.
,
Whereas ordinary plate glass will in most in‘
stances be perfectly satisfactory, it may in some
installations be desirable to use panes 6, 1, within
which metal wires 19 are embedded adjacent'and 65;
parallel to the edges of the. panes. These willire
inforce the panes against breakage and chipping,
and also, in the event of breakage, hold thepieces
together and prevent their falling out of the win-v
dOW frame.
Figure 5 shows a modi?ed form of ventilation
controlling damper 8i intended for use with the
same type of window construction to control flow'
of air through the ventilating aperture 82"be
tween approximal edges of sloping panes 83 and 75
4
2,115,330
84.’ This damper 8| is in the form of a single
elongated blade 86 of transparent, shatter-proof
material, such as celluloid or the more recently
developed condensationproduct of phenol, which
has grown into. extensive commercial use and
which provides a transparent materialin sheet
form with non-shatterable qualities. This blade
86 is carried by. a ?ange 81 at each'end thereof,
extending downwardly therefrom to be engaged
10 upon axially aligned pins 88, at least one of which
extends through the frame (not shown) to engage
an operating rod through a suitable crank mech
anism (not shown), whereby rotary motion of the
entire blade 86 from its full line position to its
16 dashed line position may be attained. The outer
edge 89 of the transparent blade 86 is preferably
curved downwards slightly and is provided with
an edging 9| of suitable resilient material, such as
rubber, whereby when the device is in closed posi
20 tion a substantially water- and air-tight seal is
established between the blade 86 and the lower
edge 92 of the upper of the two associated panes
83.
~
. Mounted-upon the'same pintles 88 but through
from a remote point and comprising a shaft
journaled coaxially with respect to said frame,
means actuated by rotary movement of said shaft,
for actuating said adjustable means, and means
for turning said shaft.
_
~
5. In combination, a window frame, a pair of
sashes mounted'therein and spaced apart to de
?ne a ventilating aperture therebetween, a louvre
frame‘, tubular pintles pivotally mounting said
louvre frame upon said window frame within said 10
aperture, a louvre on said louvre frame adjust- '
able to control ventilation therethrough, a shaft
extending through at least one of said tubular
pintles and rotatable with respect thereto, means
connecting said louvre to said shaft whereby said
louvre is adjusted by rotary motion of the shaft, ,
and means for turning said shaft.
6. In combination, a window frame, a pair of
sashes mounted therein and spaced apart to de
?ne a ventilating aperture therebetween, a l‘ouvre 20
frame, tubular pintles pivotally mounting said ,.
louvre frame upon said window frame within said
aperture, a louvre on said louvre frame adjustable ;.
to control ventilation therethrough, a shaft ex
tending through at least one of said tubular
pintles and rotatable with respect thereto, means '
connecting said louvre to said shaft whereby said ,
the expedient of separate ?anges 96 is a frame
91 carrying a screen 98 which is adapted to re
main stationary when the blade 86 .is turned to
open position. The inner edge of the frame 91 louvre is adjusted by rotary motion of the shaft,
means for turning said shaft, and means for l
carries an inverted trough 99, adapted to en
gage the upper edge llll of the lower of the two ' counterbalancing the weight of the movable por 30
’
,
associated panes 84 ; and a strip I02 of suitable tion of said louvre;
7. In combination, awindow frame, apair of
resilient material is disposed in the bottom of the"
trough 99, which makes for ‘silent operation. sashes mounted therein and spaced apart to‘ de?ne a ventilating aperture therebetween, a‘ louvre
Preferably another'and smaller strip I03 of re
silient material is secured to the upper frame 9'! frame, tubular pintles pivotally mounting said
. immediately adjacent the trough 99 in position to louvre frame upon said window framewithin said
engage the inner edge of the blade 86 when in aperture, a louvre on said louvre frame adjust-r
closed position.
,
- The outer edge I06 of the screen frame 9'! is
curved to arcuate form about the axis of the pin
tles 88, conforming closely to the curvature of the
associated portion of the blade 86, thereby insur
ing that the screen and blade are disposed closely
enough to exclude insects and the like.
45
I claim:
~
.
1. In a shutter for controlling ?ow through a
ventilating aperture, a frame pivotally mounted
within said aperture and adapted to be with
drawn therefrom by swinging about the axis of
50 its pivotal mounting, said, frame de?ning an
opening, means carried by said frame for closing
said opening, and means rotatableyabout said axis
of said frame for'operating said closing means.
2. In a shutter for controlling flow through a
55 ventilating aperture,‘ a frame pivotally mounted
within said aperture, means on said frame de
?ning a' louvre, movable means on said frame
able to control-ventilation therethrough, a shaft
extending through, at least one of said tubular
pintles and rotatable with respect thereto, means 40
connecting said louvre frame to said shaft where
by said louvre is adjusted by rotary ‘motion of
the shaft, means for turningsaid shaft, and, '
means for counterbalancing the weight of said
turning means and the movable portion of said 45
louvre.
8. In combination, a window'frameha pair of
sashes mounted therein and spaced apart to de
?ne a ventilating aperture therebetween, a, louvre
frame, tubular pintles pivotally mounting said 50
louvre frame upon said window frame within said ,
aperture, 2, louvre on said louvre frame adjustable
to control ventilation.therethrough, a shaft-ex
tending through one of said tubular pintles and
rotatable with respect thereto, means-connecting,
said louvre to said shaft whereby said louvre ‘is
adjusted by rotary motion of the shaft, means
for opening and closing said louvre, and means for turning said shaft, and means for counter-'.
rotatable about the axis of pivotal movement of balancing the weight of the movable portion ofv
' said louvre, said counterbalancing means being do"
60 said frame for operating said movable means.
3. In a shutter for controlling ?ow through a in the form of a plurality of units selectively se
ventilating ~aperture,ja frame pivotally mounted curable in operative relation to said'louvre, ‘the
number of such units employed being deter
within said aperture, means on said frame de?n
ing a louvre, meansmovably mounted on said mined by the weight of the louvre being counter
balanced.
65 frame for opening and closing said louvre, oper
'9. In a shutter for controlling flow through an
ating means, for said opening and closing means, .
disposed at a point remote from said ventilating aperture, a frame movable with respect to said
aperture, and means continuously connecting said aperture, ?ow-controlling means carried byand
operating means to said opening and closing movable with respect to said frame, operating
means remote from said aperture, and means
70 means in all positionsrofsaidr frame.
4. In a ventilation-controlling device, a pivot— operatively connecting said operating means to
ally mounted frame, damper means on said frame said flow-controlling means in all positions of
said frame.
‘ ,.
adjustable to regulate fl'ow therepast, an oper
WESLEY W. EAGER.
ating member for adjusting said damper means
I
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