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Патент USA US3086594

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April 23, 1963
w. HOUMERE
3,086,584
VERTICAL VENETIAN BLIND
Filed July 31, 1959
4 Sheets-Sheet 1
INVENTOR
M4175? ?aw/4%:
BY
, v‘ %
j ,4770/F/UEXJ'
April 23, 1963
w. HOUMERE
3,086,534
’ '
VERTICAL VENETIAN BLIND
Filed July 31, 1959
4 Sheets-Sheet 2
,
INVENTOR.
W44 75/? ?ommef
April 23, 1963
w. HOUMERE
3,086,584
VERTICAL VENETIAN BLIND
Filed July 31, 1959
4 Sheets-Sheet 3
In,
_F5H-ll-‘ I
____/~7Z
INVENTOR.
M4170? ?ay/?fe:
BY
é
‘
4 7705/1/67?
United sees
1
3,086,584
VERTICAL VENETIAN BLIND
Walter Houmere, 10 E. 8th St., New York 3, NY.
Filed July 31, 1959, Ser. No. 830,938
14 Claims. (£1. 160-168)
or
3,086,584
Patented Apr. 23, 1963
2
accomplishes all of the above and yet is simple to use,
relatively inexpensive to fabricate, reliable in operation
and adapted to be constructed in many styles.
Other objects and features of the invention will be
apparent when the following description is taken in con
nection with the annexed drawings, in which:
FIG. 1 is a front elevation of a blind according to
The present invention relates to Venetian blind struc
the present invention in place in a window casing being
tures and particularly to a Venetian blind structure in
partially raised and in its closed position;
which the closeable members are vertically oriented.
FIG. 2 is an enlarged fragmentary elevational view of
More particularly, this invention relates to a blind in 10
an individual strip illustrating one embodiment of sec
which the vertically oriented strips or slats are simultane
tional construction thereof;
ously rotated in an arc of substantially 180 degrees and
FIG. 3 is a fragmentary cross-sectional view taken
raised and lowered in an easy and positive manner.
Vertically oriented Venetian blinds offer many advan
tages over conventional horizontal Venetian blinds, such
as providing more ?exibility in admitting or preventing
sunlight from entering and allowing the blind to be flush
against or even overlapping the sides of the window sash
along line 3——'3 of FIG. 2;
FIG. 4 is a ‘fragmentary elevational view illustrating
one mode of suspending the vertical strips to the upper
horizontal supporting member, showing the strips in their
fully closed position;
FIG. 5 is a view similar to FIGS. 4 illustrating the ver
thus eliminating any openings between the sides of the
window and the blind. However, vertically oriented N) 0 tical strips in their partially open position;
blinds have not been widely used due to the dii?culties
in raising and lowering of the vertically oriented strips
FIG. 6 is a view similar to FIGS. 4 and 5 illustrating
the vertical strips in their ‘fully open position;
FIG. 7 is a fragmentary cross-sectional view taken along
line 7-7 of FIG. 4;
FIG. 8 is a fragmentary cross-sectional view taken along
In an attempt to overcome the difficulty of raising the 25
line 8—8 of FIG. 5;
vertical strips, the vertical strips were made of cloth or
FIG. 9 is a fragmentary cross-sectional view taken along
other non-rigid material and were rolled up in a manner
line 9-9 ‘of FIG. 6;
similar to the conventional window shade. This type of
FIG. 10 is a fragmentary cross-sectional view taken
blind did not present a neat appearance in either its
along line 143-710 of FIG. 6;
rolled or unrolled position, soiled easily and proved diffi
FIG. 11 is a front elevational view of an individual strip
cult to keep stationary when in the unrolled position due
showing an alternate manner of joining the individual sec
to its non-rigidity. Further. difficulty arose in keeping
tions of a vertical strip;
~
the strips separated upon the blind being rolled up. An
FIG. 12 is a fragmentary cross-sectional view taken
other di?ioulty of the vertical blind heretofore used was
35 along line 12-12 of FIG; ‘11;
that elaborate and costly means were required to uni
FIG. 13 is a fragmentary cross-sectional view taken
formly vary the orientation of the vertical strips for ad
along line 13—13 of FIG. 11;
mitting or shutting out light. Often times these means
simultaneously as well as the di?’iculty of simultaneously
changing the orientation of the vertical strips uniformly.
required several operations to uniformly position the
FIG. 14 is an enlarged fragmentary elevational view
strips in their desired orientation. Also, if privacy were 40 showing the apparatus for movably guiding the adjacent
sections of the vertical strip of FIG. 11;
desired and the vertical strips were placed in their fully
FIG. 15 is a diagrammatic perspective view of a fur
closed position, and the windows were open, any breeze
ther embodiment of the mechanism for raising and lower
would cause the vertical strips to separate, thereby mak
ing any privacy uncertain.
Therefore, it is an object of the present invention to
provide a Venetian blind structure having a series of
strips extending vertically and being uniformly rotatable
ing the vertical strips;
FIG. 16 is a fragmentary elevational view of a fur
ther embodiment for rotating the vertical strips;
FIG. 17 is a view taken along line 17-—17 of FIG. 16;
and
about their vertical axis for admitting or shutting out
FIG. 18 is a view similar to FIG. 16 showing the strips
light, which rotation is controlled by rotating a horizontal
supporting member so that each individual vertical strip 50 in a different orientation.
Referring now to the drawings: There is shown in
is positively and uniformly rotated.
FiG.
1 a front view of a blind structure in accordance
It is another object of this invention to provide a Vene
with the present invention mounted in a window. The
tian blind structure in which all the blind strips rotate in
blind structure as shown consists of a plurality of iden
the same direction about their vertical axes during open
ing and closing rotational movement, thus assuring that
the individual strips may be moved into position to block
the entrance of light rays while still permitting free ingress
of air.
It is a further object of this invention to provide a
Venetian blind structure in which rigid vertical slats are
raised to remove the blind from the ?eld of view and
lowered uniformly by a single control mechanism.
Another object is to provide a blind for use outside
of windows or porch areas which prevents the sun’s rays
tical vertically oriented strips or slats, each designated
generally as =11. ‘It should be not-ed that in FIG. 1 there
are nine such strips shown but this is merely illustrative
and the number of strips may be increased or decreased,
depending on the width of the window to be covered and
the width of the individual strips 11. Strips 11 are prefer
ably made of a relatively light weight, rigid material
such as plastic, aluminum, fibreboard, glass fibers, etc.
Strips 11 are suspended in a manner described herein
after from a horizontal cross arm or supporting member
12 which is mounted to the upper side portion of a win
from entering the interior of the building, thus reducing
dow casing 10.
need for air conditioning units.
Cross-arm 12 has two horizontally disposed elements
Still another object of the present invention is to pro
or
arms 13 and 14 pivotally interconnected by means of
vide an apparatus for rotating a plurality of parallel in
hinges 19, only one of which is shown. Arm 13 is non
dividual strips uniformly about their longitudinal axes in
a positive uniform manner by a simple control mecha 70 rotatably supported in a plane substantially parallel to
the window in any convenient manner such as by support
nrsm.
ing its ends by brackets or pins which are fastened to
A still further object is to provide a structure which
aoeasea
3
window casing 10 as indicated diagrammatically in FIG.
1 or, if desired, arm l13 may be hung ‘from the upper
horizontal strip of window casing 10 by straps. Prefer
ably the ‘brackets or pins supporting arm 13 are so con
structed as to make it possible to remove arm 13 without
disturbing the brackets or supporting members.
This
provides for ease of installation, since the brackets or
support members may be ?rst installed and arm 13 there
after slipped into place.
Arm 14 is adapted to be rotated about hinges 19 by
any convenient means. One embodiment, shown in
FIG. 4, is a worm and gear arrangement well known in
the art, designated generally at ‘21. The worm, not shown,
is rotated by means of a drum 37 having a knurled V
4
type metal hinge. The opposite end of ?ap 17 is ?xedly
secured to arm 13 by staples, nails, glue or the like so that
upon ?ap 17 being ?exed by movement of pin 16, the
?exing line lies in a plane transverse to arm 13 and which
plane passes through the point of intersection of legs 16a
and 16b of pin 16.
‘If ‘desired ribbon 15 may be made from a substantially
rigid material having a loop at its extending end through
which leg 16a of pin 16 is received and the vertical ex
10 tending edge of ribbon 15 adjacent the surface of arm 13
being hingedly retained thereto.
To provide for easy raising or lowering of the blind
unit, each strip ‘11 is composed of a plurality of sections
designated 50a through ‘502 as seen in FIG. 1 with each
shaped groove in the outer periphery thereof, which groove 15 abutting section being in slidable relation (with each other.
is adequate to receive a cord 39 which lies therein, and
While the construction of only one strip 11 will be de
which cord 39 is used to control the rotation of drum 37.
scribed for each embodiment, the description will apply
Fastened to one end of the worm is one leg of an L
to each strip 11 of the blind unit equally as Well.
shaped lever 41 with the other leg of lever ‘41 ?xedly
‘In the embodiment shown in FIGS. 1, 2 and 3, each sec
mounted to the end of arm 14 adjacent the worm and
gear arrangement 21.
tion ‘of 50a through Site as seen in FIGURE 1, telescopi
cally receives its lower adjoining section with the excep
Strips 11 are uniformly rotated about their respective
tion, of course, of the bottom-most section 5%. Each
vertical axis by a positive, simple to operate mechanism.
adjoining end of each of the intermediate sections, 5012,
While the following discussion will be with respect to
50c and 50d has a thickened edge or lip ‘51 projecting
one strip 11, it will be applicable for all strips 11. Each 25 from the inner and outer surfaces respectively. Section
strip 11 has extending from the top thereof, a ribbon 15,
56a has a lip 51 projecting inwardly from the inner sur
with the extending end of each ribbon 15 communicating
face of its lowermost end, and section 5% has a lip 51
with one leg 16a of a respective L-shaped pin 16 in a
projecting outwardly from its outer surface of its upper
manner to be described. The other leg, 16b, of pin 16
end. Strips 56a through 502 are assembled so that the
is rotatably mounted on arm 14 of cross-arm 12 so that
abutting ends of two consecutive sections have their re
the intersection of leg 16a and leg 16b of L-shaped pin
spective lips Slextending from an inner and outer sur
16 lies in a plane parallel to the longitudinal axis of arms
13 and 14 :and passing through the pivotal line there
'between as seen best in FIGS. 6 and 10.
For best re
face respectively for coaction, as seen best in FIGURE 3.
The section that slides into the adjoining section has its
lip 51 on its outer surface and the section that receives
sults leg 16]; is preferably placed on the surface of arm 35 the adjoining section has its lip 51 on its inner surface.
14 along a line 45° to the longitudinal axis of arm 14. It
This alternate placement of projecting lips 51 on adjoin
is desirable that ribbon 15 will be made of a material
ing ends of adjacent sections 59 is repeated throughout
that is rigid but having some ?exibility for converting the
each strip 11 in the blind unit, so that the thickened
rotational movement of pin 16 to rotational movement
edges or lips 51 interact upon strip 11, being in its fully
in the vertical plane. While the ribbons 15 are shown
extended position to prevent separation of adjacent sec
and described as separate from strips 11, they may be
tions.
elongations or tabs of strips 11.
Suspended from strips 11 is a lower cross arm mem
Ribbon 15 is mounted to vertical strip 11 in any con
ber 25 which aids keeping strips 11 taut and under de?nite
venient manner in the present embodiment. As shown
control at their lower edges. Cross arm member 25 also
in FIG. 2, ribbon 115 is secured to strip 11 ‘by means of
aids to impart uniform up-and-down movement of strips
an elongated rod 26 which extends from both sides of a
pocket or loop ‘formed at one end of ribbon 15. The
upper edge of strip 11 has a rectangular notch or under
cut portion 28 therein. Notch 28 has a width slightly
larger than the width of ribbon 15 and has a depth
slightly greater than the depth of the loop in ribbon 15
so that upon the end of ribbon 15 being received in notch
11 in a manner described below. In one embodiment,
cross arm member 25 is guided for up-and-down move
ment by means of a guide cord 23, having its ends at
tached to opposite ends of cross arm member 25, as shown
in FIG. ‘1. Guide cord 23 extends upwardly from each
end of cross arm 25 and is received by pulleys 40, which
are ?xed to the upper side members on window frame 10.
28 the extending ends of rod 26 extend into pockets
From pulleys 4t} guide cord 23 passes through a conven
formed in strip 11 adjacent the upper edge thereof. For
tional cord locking or holding device with the remaining
55
uniform relative movement of strips 11 about their lon
loop or end portion of guide cord 23 hanging freely for
gitudinal axis, the longitudinal axis of each strip 11 should
use as a pull cord indicated at ‘24.
be coincident to the pivoting line of a hinge means 17
A further embodiment for raising and lowering the
described herein-after.
blind unit is shown schematically in FIG. 15. At each
Ribbon 15 is secured in any convenient manner to free
end of the upper portion of window casing .16 is a pair of
leg 16a of L-shaped pin l16 as long as the longitudinal 60 pulleys 41 and 42, 44 and 45, respectively, which are
axis of vertical strips 11 lie in a vertical plane. A pre
rotatably supported. Pulleys 41, 42, 44‘ and 45 are sub
ferred method of accomplishing this is shown in FIG. 4,
stantially parallel to the longitudinal axis of cross arm 12.
5 and 10.
Pulleys 41 and 44 are aligned in the same parallel plane
Leg 16a of L-shaped pin 16 is rotoatably secured to
65 and pulleys 42 and 4-5 are likewise in the same parallel
one arm of a hinged member 17. The other arm of
plane. Rotatably supported at opposite ends of the lower
hinged member 17 is ?xedly secured to the inner surface
most portions of window casing 10 in planes transverse to
of arm 13. Hinged member 17 is positioned on arm 13
the planes in which pulleys 41, 42, 44 and 45 lie, are
so that its pivoting line lies in a plane transverse to arm
pulleys 47 and 48 respectively. Pulley 47 is transverse to
13 and passing through the point of intersection of legs 70 pulleys“ and 42, having its opposite peripheral cord
receiving surfaces aligned vwith the peripheral cord re—
16:: and 16b of L-shaped pin 16. As shown in the draw
ceiving surfaces of pulleys 41 and 42 respectively. Simi
ings hinged member ‘17 is a ?exible substantially rec
larly, pulley 48 is transverse to pulleys 44 and 45, having
tangular ?ap of material having a loop at one end in
its opposite peripheral cord receiving surfaces aligned
which leg 16a is received. If desired hinge member 17
respectively with the peripheral cord receiving surfaces
may be of more rigid material, such as a conventional
of pulleys 44 and 45. A continuous guide cord 49 is
{3,086,584
passed about pulleys 41, 42, 44, 45, 47 and 48, in a man
ner shown in FIG. 15. Starting at pulley 41, guide cord
'49 is passed downwardly about pulley 47, up from pulley
47 and about pulley 42 to pulley 45, around pulley 45
and down to pulley 48, around pulley 48 and up to
pulley 44 and then over to pulley 41. Guide cord 49
is ?xedly secured in any convenient manner to the op
posite ends of bottom cross arm member 25 of the blind
unit. Blind unit may be raised from either end of win—
from arm 13 as shown in FIGS. 6, 9 and 10, leg 16a and
strips 11 are rotated about 90° from the surface of leg
13 so that strips 11 are in their maximum open position.
Leg 16a also is rotated about 90° upon arm 14 being ro
tated from 180° to 135° about leg 13 if quick movement
of strips 11 is desired.
To raise or lower blind 10, portion 24 of cord 23 is
pulled, thereby lifting bottom cross-arm 25 by means of
cord 23 over pulleys 40. Upward movement of cross-arm
dow casing 10 by merely pulling guide cord 49‘ upwardly
25 in turn progressively telescopes the sections of each
at the end most convenient to raise the blind unit, or
strip, starting from the lower section, 5% as seen in FIG.
1 on upward. As shown in FIG. 2, section 50a and 50b
are fully extended, whereas next lower section 500 is
pulling guide cord 49‘ downwardly to lower blind unit.
The blind unit remains in whatever position it is moved
partially telescoped into 50b. Cord locking means which
due to the frictional sliding of individual strips ‘S‘Oa-Stle
in collapsing the blind unit. However any convenient 15 are well known in the art assure that blind 10 ‘will re
main where set. When the cord locking or securing
means may be used to hold the blind unit at the desired
height such as a frictional brake (not shown) between
pairs of pulleys 41—~42 and 44-415.
As shown in FIGS. 4 and 7, upper arm 14 of upper
cross arm 12 is abutting lower arm 13.
With cross
arm 12 in this position, vertical strips 11 are caused to
lie substantially parallel to the plane of the window or
are in their fully closed position with adjacent vertical
means is‘released, blind 10 may be lowered due to the
Weight of bottom cross-arm 2‘1, with the individual sections
progressively extending to their full length with the thick
ened end portions 51 of each section abutting, as shown
in FIGS. 1 and 2.
,
With the raising or lowering embodiment shown in
FIG. 15, continuous pull cord 49‘ on either side of the
blind unit is raised or lowered to raise or lower respec
edges overlapping, thus preventing any light from enter
ing. To open the blind a downward force is exerted on 25 tively the blind unit. Generally no cord locking device
cord 39', rotating drum 37 which in turn rotates lever
is required since the blind unit remains where positioned
41. Lever ‘41 urges arm 14 away from arm 13‘ in the
direction of the arrow as shown in FIG. 5.
due to the frictional contact between lip 51 on the juxta
posed surfaces of the adjoining section as shown in FIG. 3.
If desired, bottom cross arm 25 may be weighted so as
Leg 16b of pin 16 is rotatably secured to arm 14 of
cross arm 12 and describes the surface of a segment of 30 to urge the blind unit continuously downwardly thus
a right circular cone having its axis coincident to the
pivotal line of arms 13 and 14 of cross arm 12, as well
as rotating about its own axis. As leg 16b of pin 16 de
scribes the surface of a segment of this right circular cone,
leg 16a is caused to describe the surface of a segment of
a right circular cone having its axis transverse to the axis
of the cone generated by leg 16b and also to the axis of
cross arm 12 and passing through the intersection of legs
16:! and 16b of pin 16. With arm 14 rotating 180° about
arm 13, the conical surface generated by leg 16b is one 40
half the surface of a right circular cone and contacts the
conical surface generated by leg 16a along a slant height
line.
As mentioned above the axis of leg 16b of pin 16
is preferably 45° to the longitudinal axis of arm 14. This
position gives the best leverage for moving strips 11 with
necessitating a cord locking means.
In FIGS. 11 through 14 an alternate method is shown
of collapsing strips 11 for up-and'down movement of the
shade unit. Each strip 11 has a plurality of sections
71 of equal length. Along the center line of each sec
tion 71 is a narrow strip of resilient material 72, such as
cloth or plastic, ?xedly attached thereto, along the center
line of strip 72 so that the center lines of sections 71 and
and strips 72 are coincident and the edges of each strip
72 are movable with respect to its juxtaposed section 71.
Fixedly secured on opposite faces at each abutting end
of each section 71 are ‘brackets 76. Each bracket 76
has outwardly extending and bent-over arms 77 and 78.
'As seen best in FIGS. 12. and 14 bracket 76 is of such size
as to receive tape 72 so that arms 77 and 78 partially
encircle the edges of strip 72. [Two adjoining sections
71 of strips 11 each have their brackets 76 receive the
tape 72 of the adjoining section 71 therein as seen in
FIGS. 11 and 13. This construction allows each section
71 to slide longitudinally with respect to its adjacent sec
tion 71, so as to collapse each stripv 11 into a length sub~
the face of arm 13, the portion of ?ap 17, adjacent leg
stantially equal to one section 71 when-the blind unit is
16a is also rotated. Since a portion of ?ap 17 is ?xedly
in its open or “up” position. Other embodiments for col
secured to arm 13, ?ap 1'7 is vertically rotated about
lapsing strips 11 may be devised such as mating edge
line 53 which is coincident to the axis of the cone gen~
erated by leg 16a mentioned above. Ribbon ‘15 being 55 slides in the shape of an S.
A further embodiment for rotating strips 11 is shown
securely mounted to the pivoting portion of ?ap 17 is ro
in FIGS. 16, 17 and 18. Legs 102a of an L-shaped pin
tated in a manner similar to ?ap 17 and transmits this
102 is suitably secured to arm 13, preferably having the
rotation to its attached strip 11. As shown in FIGS. 6
axis of leg 102a at 45° to the longitudinal axis of arm 13.
and. 9, strips 11 are perpendicular to the plane of the
window or to a vertical plane passing through the longi 60 Leg 102a extends beyond the lower longitudinal edge of
arm 13. Leg 102b is kept in sliding contact with the
tudinal axis of cross arm 12, or in other words are in
inner surface of arm 14 such as by a bracket 103. R0
their fully open position, or about 90 degrees displaced
tating arm 14 in a manner described above slides leg 102b
from the closed position shown in FIGS. 4 and 7. It is
along the surface of arm 14 thereby rotating leg 102a of
to benoted that rotation of arm 14 about hinges 19 is
not directly proportional to the rotation of leg 16a of 65 pin 102. Leg 102b describes the surface of a portion of
‘a right angle cone having its axis transverse to the axis
pin 16. Leg 16a of pin 16 is rotated through a greater
of arm !14 and intersecting the point of intersection of
are with a smaller angular movement of arm ‘14 upon
legs 102a and 102b. Strips 11 are connected to legs
arm 14 being rotated between 180° to 90° with respect
102a of pins 102 in any convenient manner such as by
to arm 13 than between 90° to abutting arm 13.
As seen in FIGS. 4 and 7 strips 11 are in their fully 70 ribbons 15 slidably received in the portion of leg 102a
extending beyond the edge of arm 13. A pin 10'5 pre
closed position when arms 13 and 14 are abutting. Upon
vents ribbon 15 from being displaced from arm 102a.
arm 14 being rotated 90° from arm 13 as shown in
While I have described preferred embodiments of my
FIGS. 5 and 8, legs 16a, hence a strip 11 which is attached
invention, it will be obvious that many. other modi?ca
thereto, is moved about 45° from the surface of arm 13».
vUpon arm 14 being rotated about 135 degrees away 75 tions may be devised. Consequently I wish not to be
a given amount of force applied to arm 14. Legs 16a
and 16b of pin 16 preferably are at right angles to avoid
bin-ding with ribbon 15 or hinge 17.
As leg 16a of pin 16 is caused to rotate away from 50
3,086,584
limited by the foregoing description which was given only
for purposes of illustration but on the contrary only to
be limited by the claims granted to me.
What is claimed is:
1. A vertical Venetian blind comprising an elongated
horizontal support member, an elongated horizontal arm
pivotally attached to said support member for rotation
about a horizontal axis, a plurality of spaced apart right
angle actuating members each having a ?rst leg rotatably
mounted on said pivoting arm at an acute angle to said
horizontal axis with the right angle intersection of each
of said actuating members lying substantially on said
horizontal axis, means for restricting movement of the
8
angle actuating links of circular cross section, each of said
actuating links having one of its legs rotatably mounted
on said pivoting arm at an acute angle to said horizontal
axis and having the right angle intersection of the legs
thereof lie in a plane passing through said axis, a plu
rality of second arms each rotatably connected at one end
to a corresponding other leg of each of said actuating
links and having an edge adjacent said one end pivotally
mounted to said support member along a line transverse
to said axis and intersecting the right angle intersection
of its cooperating actuating links so that upon pivoting
said pivoting arm each of the other legs of said actuating
links respectively describes a right circular cone having
second leg of said actuating members to respectively
their axes in a common plane, means for pivoting said
describe the surface of a segment of a right circular cone 15 pivoting arm, vertically oriented segmented slats carried
having their axes in a common plane ?xed with respect
by each of said second arms, each of said segments of
to said support member and containing said horizontal
axis and passing through the right angle intersection of
actuating members upon rotation of each of said ?rst
legs, means for selectively pivoting said pivoting arm,
vertical segmented louvers actuated by said actuating
members whereby upon proper pivoting of said pivoting
each of said slats movably mounted on its adjoining upper
segment so that the Venetian blind can be raised to a
height of a single segment and means for simultaneously
raising said lowermost segment of each of said slats for
collapsing said segments along their adjoining upper seg
ment in sequence from the lowermost segment upwardly.
4. A vertical Venetian blind comprising an elongated
and closing the blind, each louver having a ?rst segment
horizontal support member, an elongated horizontal arm
coupled to each of said second legs of said actuating mem 25 pivotally attached to said support member for rotation
bers, a series of inter?tting segments for each louver with
about a horizontal axis, a plurality of spaced apart right
each segment of a height substantially identical to the
angle actuating links of circular cross section, each of said
height of said ?rst segment, one segment of each of said
actuating links having one of its legs rotatably mounted
series slidably mounted on each of said ?rst segments,
on said pivoting arm at an acute angle to said axis and
each segment of the remainder of said series of segments 30 having the right angle intersection of the legs thereof lie
slidably mounted on its adjoining upper segment, cooperat
in a plane passing through said axis, vertically oriented
ing means adjacent top and bottom edges of said segments
segmented slats carried by each of the other legs of said
to retain said ?rst segment and said series of segments
actuating links, means for selectively pivoting said pivot
in ‘fully extended position, means for raising the lower
ing arm so that said one leg of said actuating links is
most segment of each of said louvers for sliding said seg— 35 rotated and the other leg of said actuating links respec
ments along adjoining segments in sequence from the
tively describes a segment of a right circular cone having
lowermost segment upwardly so that the Venetian blind
their axis in a common plane ?xed with respect to said
can be collapsed to a length of a single segment.
support member and passing through the right angle
‘2. A vertical Venetian blind for controlling the amount
intersection of said actuating links, each of the segments
of light passing through a window comprising an elon~
of each of said vertical slats adapted for slidable move
gated horizontal support member adapted for pivotal
ment on the adjoining upper segment so that said slats
movement about a longitudinal edge, a plurality of spaced
can be raised to a height of a single segment and means
apart substantially right angle actuating members each
for raising the lowermost segment of each of said vertical
having a ?rst leg rotatably mounted on said support mem
slats and sliding said segments along their adjoining upper
ber at an acute angle to the longitudinal pivoting edge
segment in sequence upwardly from the lowermost seg
thereof, means for restricting movement of a second leg
ment,
of each of said actuating members to describe the sur
5. A vertical Venetian blind comprising an elongated
face of a segment of a right circular cone which has its
horizontal support member, an elongated horizontal arm
axis at substantially 45° to the axis of said second leg and
pivotally attached to said support member for rotation
transverse to said pivoting edge of said support member
about a horizontal axis, a plurality of spaced apart right
arm each of said vertical louvers are rotated for opening
and passing through the right angle intersection of its
respective actuating members, means for selectively pivot
angle actuating members each having a ?rst leg rotatably
mounted on said pivoting arm at an acute angle to
ing said support member, a vertical segmented louver
said axis with the right angle intersection of each of said
actuated by each of said actuating members whereby upon
actuating members lying substantially in a plane passing
proper pivoting of said support member said louvers are 55 through said axis, means for restricting movement of
rotated for varying the openings between adjacent louvers,
the second leg of said actuating members to respectively
each louver having a ?rst segment coupled to each of said
describe the surface of a segment of a right circular cone
second legs of said actuating members, a series of inter
in response to rotation of said ?rst leg, means for selec
?tting segments for each louver with each segment of a
tively pivoting said pivoting arm, vertically oriented strips
height substantially identical to the height of said ?rst 60 carried by each of said second legs of said actuating
segment, one segment of each of said series slidably
members whereby proper rotation of said pivoting arm
mounted on each of said ?rst segments, each segment of
rotates each of said second legs of said actuating members
the remainder of said series of segments slidably mounted
and said vertical strips mounted thereon for opening and
on its adjoining upper segment, cooperating means ad
closing the blind.
jacent top and bottom edges of said segments to retain 65
6. A vertical Venetian blind as claimed in claim 5
said ?rst segment and said series of segments in fully ex
wherein said means for restricting movement of said
tended position, means for raising the lowermost segment
second leg of said actuating members includes arms ro
of each of said louvers for sliding said segments along
tatably mounted on each of said second legs and having
adjoining segments in sequence from the lowermost seg
an adjacent edge pivotally mounted to said support mem
ment upwardly so that the Venetian blind can be col
lapsed to a length of a single segment.
3. A vertical Venetian blind comprising an elongated
horizontal support member, an elongated horizontal arm
pivotally attached to said support member for rotation
about a horizontal axis, a plurality of spaced apart right
ber along a line transverse to said horizontal axis and
containing the right angle intersection of its respective
actuating member.
7. A vertical Venetian blind comprising an elongated
horizontal support member, an elongated horizontal arm
pivotally attached to said support member for rotation
3,086,684
10
selectively pivoting said pivoting arm, a vertical strip
carried by each of said ?rst legs of said actuating links
about the longitudinal edge adjacent said support member,
a plurality of parallel spaced-apart ?rst shaft members
rotatably mounted on a surface of said pivoting arm at
an acute angle to the longitudinal edge of said pivoting
arm adjacent said support member, each of said ?rst
shaft members having an end aligned with the edge of
said pivoting arm adjacent said support member, a sec
ond shaft member attached at substantially right angles
to each of said edge aligned ends of said ?rst shaft mem
bers so that the point of intersection of each of said ?rst
and second shaft members lies substantially in a plane
whereby upon proper rotation of said pivoting arm each
of said ?rst legs of said actuating links and said vertical
strips mounted thereon are rotated for opening and clos
ing the blind.
‘12. A vertical Venetian blind comprising an elongated
horizontal support member adapted for pivotal move
ment about a longitudinal edge, a plurality of spaced
apart substantially right angle actuating members each
passing through the pivoting line between said support
having a first leg mounted for sliding movement on a
surface of said support member upon said support mem
member and said pivoting arm, means for selectively
ber being pivoted, means for rotatably supporting the
pivoting said pivoting arm about said support member, and
second leg of each of said actuating members at an acute
a vertical strip carried by each of said second shaft mem
bers whereby upon proper rotation of said pivoting arm
each of said second shaft members and said vertical
strips carried thereon are rotated.
8. A vertical Venetian blind for controlling the amount
of light passing through a window comprising an elon 20
angle to said longitudinal pivoting edge of said support
member, means for selectively pivoting said support mem
ber, a vertical strip carried by each of said second legs
of said actuating members whereby upon proper pivoting
of said support member each of said vertical strips are
rotated.
gated‘ horizontal support member adapted for pivotal
13. Apparatus for rotating uniformly a plurality of
movement about a longitudinal edge, a plurality of spaced
parallel members comprising an elongated arm transverse
‘to the axes of said parallel members and adjacent one end
thereof, said arm adapted to be pivoted about a longi
apart substantially right angle actuating members each
having a ?rst leg rotatably mounted on said support
member at an acute angle to the longitudinal pivoting
edge thereof, means for restricting movement of a second
leg on each of said actuating members to describe the
surface of a segment of a right circular cone which has
its axis at substantially 45° to said second leg and trans
verse to said pivoting edge of said support member and
passing through the right angle intersection of its respec
tive actuating members, means for selectively pivoting
said support member, a vertical strip carried by each of
said second legs of said actuating members whereby upon
proper rotation of said support member said vertical
strips are rotated for varying the openings between ad
tudinal edge, a plurality of parallel right angle actuating
members each having a ?rst leg rotatably mounted on said
elongated arm and the right angle intersection lying in a
plane passing through the pivoting axis of said elongated
member, said ?rst leg of each of said actuating members
lying at an acute angle to said pivoting line, means for
restricting movement of a second leg of each of said actu
ating members to de?ne the surface of a segment of a
right circular cone having its axis at substantially 45° to
said second leg and transverse to said pivoting line and
passing through the right angle intersection of its re
' 9. A vertical Venetian blind for controlling the amount
spective actuating member, and means linking each of said
second legs of said actuating members to their respective
adjacent parallel members whereby upon said elongated
of light entering a window, comprising an elongated
horizontal support member adapted for pivotal move
ment pivotally mounted in the upper portion of said
window for pivoting movement about a horizontal edge,
a plurality of parallel spaced apart ?rst shaft members
horizontally disposed support member, a plurality of
identical segmented slats vertically disposed in spaced ar
second shaft member attached at substantially right angles
each of said slats with said support member for rotating
jacent strips.
arm being pivoted said second leg and said parallel mem
bers are rotated uniformly.
14. A collapsible vertical Venetian blind comprising a
rotatably attached to said support member each at an 45 rangement, said slats being adapted to be rotated in a
horizontal direction for adjusting the light entry angle
acute angle to said pivoting edge with one end of each
between
adjacent slats means operatively interconnecting
of said ?rst shafts extending over said pivoted edge, a
said slats, said segments of said slats being of substantially
to the ends of ‘each of said ?rst shaft members extending
over said pivoting edge so that the point of intersection 50 identical height, a ?exible strip smaller in width than said
segments disposed along the longitudinal axis of each of
of each of said ?rst and second shaft members lies sub
said segments on front and rear surfaces thereof, clamping
stantially in a plane passing through the pivoting line of
means secured to upper and lower edges alternately on
said support member, means for pivoting said support
front and rear surfaces of each of said intermediate seg
member, and a vertical strip carried by each of said sec
ond shaft members whereby upon proper rotation of said 55 ments for cooperating within a respective strip to inter
lock adjoining segments of each slat, said clamps on an
support member said second shaft members and said
upper and lower edge of adjoining segments of each
vertical strips carried thereon are rotated.
slat slidably engaging a respective strip so that upon
10. A vertical Venetian blind as claimed in claim 9,
said slats being in fully extended position said clamps
wherein ‘each of said vertical strips are segmented, each
on
the same relative surface and adjoining segments abut,
of said segments of each strip adapted for sliding move 60
means for raising the lowermost segment of each slat sub
ment with respect to an adjoining segment and means
for sliding said segments of each of said strips in sequence
for collapsing said blind.
11. A vertical Venetian blind comprising an elongated
horizontal support member, an elongated horizontal arm 65
parallel to said support member and pivotally attached
thereto for rotation about a horizontal axis, a plurality
of spaced apart parallel right angle actuating links each
stantially simultaneously for collapsing said segment
of each slat in sequence from the bottom to the top regard
less of the angular displacement of the adjacent slats.
References Cited in the ?le of this patent
UNITED STATES PATENTS
restricting movement of the second leg of said actuating
643,307
847,143
1,013,417
2,707,910
links to sliding movement 'with respect to a surface of said
pivoting arm upon said arm being pivoted, means for
2,755,854
2,891,613
having a ?rst leg rotatably mounted on said support mem
ber at an acute angle to said horizontal axis, means for 70
Schmitt _____________ __ Feb. 13,
Wyss _______________ __ Mar. 12,
McIntosh _____________ __ Jan. 2,
Tillots-on ___________ .._ May 10,
McIntire ____________ _.. July 24,
Latham _____________ .__ June 23,
1900
1907
1912
1955
1956
1959
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