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Nov; 5, 1946.
2,410,549
E. A. OLSON
VENETIAN BLIND
2 Sheets-Sheet l
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V EN T
EDWIN A. OLSON
-
WMY Wm
ATTORNEYS
Nov. 5,‘ 1946.
2,410,549
E. A. OLSON'
VENETIAN BLIND
Filed July I51, 1945
2 Sheets~Sheet 2
INVENTOR
EDWIN
A . OLSON
B)’
-
ATTORNEYS
Patented Nov. 5, i946 ‘_
2,410,549
UNITED ‘STATES PATENT oFFicE
2,410,549
VENETIAN BLIND
Edwin A. Olson, Los Angeles, Calif. ‘'
Application July 31. 1945, Serial No. 607,924
'6 Claims. (cl. 160-34)
1
~
.
This invention relates to Venetian blinds
which are the type of blinds formed with a plu
prised of a rigid head casing I l which may be ar
ranged transversely at the head of a window and
rality of horizontally disposed parallel slats,
which are ?exibly united and spaced apart by
secured to the frame thereof so as to dispose the -
means of vertically suspended ?exible tapes.
In blinds of this type it is customary'to raise
blind in register with the window opening, as is
customary. The casing II is, of course, ?xed by
screws or other fastening elements to the window
and lower the same by means of a pull cord ar-_
ranged at one side of the blind and to angularly
frame at the head thereof.
'
The casing includes a top plate l2, a front plate
adjust the slats to vary the light admitting area
I 4 and a rear plate l5, which are rigidly connect
by a second pull cord at the opposite side of the 10 ed by end plates is. If desired, the rear plate
blind.
>
l5 may be dispensed with. ‘ Arranged longitudi
It is the principal object of my present inven
nally within thecasing is a head rail I‘! mounted
for rotation in the casingv Ii. For this purpose
tion to provide an improved Venetian blind in
which raisingand lowering the blind and angular
ly adjusting the slats may be effected by nia
the head rail is provided with pintles I8 rotatably
15 mounted in the end plates is in a manner per
' nipulation of a single control element.
It is a further object of my invention to pro
vide an improved and simpli?ed operating mech
anism for Venetian blinds of the character re
ferred to which is characterized by smooth and 20
e?icient operation, simplicity of mechanical con
struction and ease of manipulation._
It is a further object of my invention to pro
vide a Venetian blind of 'the character referred
to ‘in which the operating element is inconspicu
ously disposed when the blind is in extended con
mitting the head rail to revolve about a horizontal
axis. At one end the head rail is formed with
a ?xed pulley IS, the operating face of which is
concentric to the pintle l8 and the axis of rota
tion of the head rail H.
>
At the lower end the blind is formed with a
bottom rail 20 connected with the top rail by
spaced ?exible tapes 2| as in usual practice.
Longitudinally disposed parallel slats 22 are dis
posed at spaced intervals between the head rail
l1 and the bottom rail 20 and are supported be
tween the tapes 2| by means of ?exible trans
One form which the. invention may assum
verse tapes 23 fastened at their ends, of course,
is exempli?edin the following description and
to the interior surfaces of the suspended ?exible
illustrated by way of example in the accompany 30 tapes 2 I.
dition over the window opening.
-
ing drawings, in which:
»
For the purpose of raising and lowering the'
Fig. 1 is a perspective view of a blind con
structed. in accordance with my present inven—
tion, showing the head casing removed to more
7 clearly disclose the blind operating mechanism.
Fig. 2 is a plan sectional view through the head
casing, showing certain features of construction.
Y blind a raising and lowering cord 24 is provided,
one end of which is secured to the bottom rail
20 at a point 25. From this point, the raising and
lowering cord extends vertically through the slats
and through the head rail l1, and thence about a
pulley 26, then longitudinally over a pulley 21,
thence downwardly through a hollow adjustment
pulley 28 and is secured to an operating element
Fig. 3 is a central longitudinal section through
the blind and the head casing, disclosing the
manner of construction of my improved blind.
40 29. The adjustment pulley 28 rotates about a ver
Fig. 4 is a vertical sectional view taken on line
tical axis and is mounted in the casing H for
4-4 of Fig. 4.
-
’
'
such operation.
Fig. 5 is a transverse sectional view taken along
line 5—5 of Fig. 2.
-
Fig. 6 is an enlarged fragmentary view in ver
-
'
A second raising and lowering cord 24a is fas
tened to the bottom rail as at 25a and extends
vertically upward through the slats and through
tical section taken through the center of the
the head rail IT and thence over a pulley 26a
slat adjustment pulley.
and a pulley 21a and downwardly through. the ad
justment pulley 28 and fastened to the control
.
Fig. 7 is a perspective view of the latch mem
ber.
'
'
element 29.
Fig. 8 is a fragmentary view in perspective of
_' a portion of one of the slats employed.
Fig. 9 is a transverse sectional view taken on
line 9--9 of Fig. 6.
_
Referring more particularly to the accompany
ing drawings, I0 indicates a Venetian blind com?
.
,
The length of the raising and lowering cords
24 and 24a is such that when the blind is in
fully extended position, the control element of
handle 29 is in a position with its upper end tele
scoped into a socket 30 formed as an.extension
oi ‘the lower end of the pulley 28. This socket
2,410,049
3
has a square socket opening therein snugly ?t
4
.
24 and 24a upwardly _to lower the blind, it is only
necessary to give a sharp pull downwardly on
the control element 28 which disengages the lower
end of the control element or handle 29. Thus,
end of the latch member and then move the cords
when the portion 3| of the control element 29 is
inwardly toward the center or the socket 38 to
projected into the socket 30, the control element
render it lne?ective and enable the blind to be
may be rotated ‘to effect rotation of the adjust
lowered. The minute that slack occurs‘ in the
ment pulley 28. Such rotation of the adjustment
cords and they are movedradially outward from
pulley e?ects angular adjustment or the slats.
the center of the socket, the latch member 35 '
This is accomplished by fastening one end of
an adjustment cord 32 to the pulley 28 and giv 10 becomes e?ective to latch the blind against fur
ther extending movement.
ing it several turns thereabout, then leading said
In operation of the device, the blind is con- '
cord over a pulley 33, winding the same about the
structed and assembled substantially as illustrated
pulley IS on the head rail l'l, leading said cord
and described and the casing II is mounted on
from said pulley over a pulley 34, and thence
the head rail of the window. In this condition
winding it around the adjustment pulley 28 and
the squared end 3| of the control element 23 is
fastening it thereto. The two ends of cord 32
telescoped within the squared end of the socket
are connected to pulley 28 from diametrically op
30. By merely turning the control element 28
posite sides thereof so that as one end of said
about its longitudinal axis, angular adjustment
cord winds onto pulley 28 the other end unwinds
therefrom. Because of the provision of the ad 20 of the slats may be effected to vary the area of
the light admitting opening. When the control
justment cable 32 and its connection with the
element 25 is so turned or rotated, the adjust
pulley ID, as described, rotation of the pulley 28
ment pulley 28 is rotated simultaneously there
about its vertical axis will cause turning move
with, which, through the adjustment cord 32, im
ment of the pulley l9 about its horizontal axis,
and, consequently, angular adjustment of the 25 parts turning movement to the pulley i8 and an
gularly adjusts the head rail I‘! about its pintles
head rail l1, the bottom rail 20 and the inter
I8. This angular adjustment of the head rail I1
vening slats 22 will be e?'ected as in the normal
is accompanied, of course, by similar angular ad
‘operation of Venetian blinds.
justment of the bottom rail 20 and the slats 22.
It will ‘be seen that the pulleys 281 21, 28a and
If it is desired to collapse the blind, it is only
21a are rotatably mounted in brackets suspended 30
from the top wall 12 of'the head casing ll.. necessary to pull downwardly on the control ele-.
ment or handle 29, which pulls the bottom rail 20
‘These pulleys are rotatable about horizontal axes.
_upwardly through the cords 24 and 24a. When
The pulleys 33 and 34 are rotatably supported in
the blind has been collapsed a desired amount,
brackets ?xed to the front wall l4 of the casing
ting a complemental square end II on the upper
II and revolve about a vertical axis as shown.
the cords 24 and 24a are allowed a slight amount
of upward movement in the socket 30, which will
From the ioregoingit is obvious that when the
enable the clutch 35 to become effective and latch
control element or handle 23 is pulled down
the blind in that condition, as described.
wardly, it will cause the raising and lowering
If it is desired to further collapse the blind, a'
cords 24 and 24a to elevate the bottom rail 28
and thus collapse the blind into a small and 40 pull is again exerted on the handle 29 to collapse
the blind to the additional desired extent.
compact condition at the bottom of the head cas
If it is desired to lower the blind or extend the
ing II. This collapsing, of course, is permitted
same,'a slight pull is exerted on the handle or
because of the provision of the ?exible tapes 2|
control element 29 and the cords 24 and 24a
which connect the head rail II to the bottom rail
, just above the handle are moved by the handle
20 and which supports the slats at spaced inter
radially inward of the socket 30 to render the
vals therebetween.
clutch 35 ineffective. The cords 24 and 24a in
It is seen that the raising and lowering cords
this position are then allowed to ‘ascend as the
24 and 24a are the medium for maintaining the
blind lowers. The blind will, of course, lower
slats 22 in correct endwise position between the
tapes 2|. For this purpose the slats are slotted 50 due to the weight of the bottom rail 20 and the
slats 22.
'
from the center transversely out through one
From the foregoing it is obvious that I have pro
longitudinal edge, as illustrated in Fig. 8, the slots
vided an improved Venetian blind wherein rais
being indicated by the numeral 22a. By merely
ing and lowering and angular adjustment of the
turning a slat .22 approximately ninety degrees
when the blind is in the condition shown in Fig. 57, slats thereof is effected through the medium of
a single control element. Manifestly, the blind
1, such turning will disengage the slots 22a from
here disclosed is of simple construction and can
the cords 24 and 24a and enable the slat to be
be manufactured at a comparatively low cost.
i moved endwise from the- blind assembly. This
enables the slats to be quickly and easily removed
While I have shown the preferred form of my .
for cleaning or redecorating. Obviously, such 60 invention, it is to be understood that various
operation does not require the removal of any
changes may be made in its construction by those
mechanical fastening means, nor necessitate an
skilled in the art without departing from'the
. entire disassembly of the blind.
spirit of the invention as de?ned in the append
I also provide means for latching the blind in
ed claims.
.
collapsed condition or in a partly collapsed con
Having thus described my invention, what I
dition. This is effected by means of a latch mem
claim and desire to secure by Letters Patent is:
ber 35 which is pivoted as at 38 within the socket
1. A Venetian blind comprising a head casing,
30 just above the squared portion thereof. This
a head rail pivotally mounted therein, a bottom
latching means is in e?ect a one way clutch, so
rail, ?exible connections between the head rail
that on a downward pull of the cords 24 and 24a, 70 and the bottom rail, a plurality of slats supported
the clutch is ineil'ective to clutchv the cords 24 and
by said ?exible connections between the head and
24a to the interior wall of the socket 30. How
bottom rails, cables ?xed to the bottom rail and
projecting vertically through the slats and head
ever, the latch member 35 will effect such clutch-.
ing operation when the cords 24 and 24a attempt
rail, pulleys carried by the casing over which
to move upwardly. However. to move the cords 75 said cables are led, an operating element movable
2,410,1549
6
vertically with respect to the blind and disposed
are secured whereby vertical movement of the
at one side thereof to which said cables are
operating element will selectively collapse and .
secured whereby vertical movement of the oper--'
ating element will selectively collapse and
extend the blind, rotatable means operable to
tilt the head rail, and complemental means on
said rotatable means and the operating element
whereby the latter may engage the rotatable
extend the blind, an adjustment pulley disposed
at one end‘ of the casing with its axis vertically
disposed, a socket member relatively ?xed to said
‘pulley and depending therefrom, a cable connec
tion ‘betweenQsaid adjustment pulley and the
head rail whereby turning of the adjustment
means to operate the same.
pulley will effect pivoting of the head rail, said
2. A Venetian blind comprising a head casing, 10 operating element having a portion engaging said
a head rail pivotally mounted therein, a bottom
socket when the blind is extended to rotate the
rail, ?exible connections between the head rail adjustment pulley and effect pivoting of the
and the bottom rail. a plurality of slats supported '
head rail.
by said ?exible connections between the head and
bottom rails, cables ?xed to the bottom rail and
5. 'A Venetian blind comprising a head casing, ~
a head rail pivotally mounted therein, a bottom
projecting vertically through the slats and head
rail, pulleys carried by the casing over which‘
‘ rail, ?exible depending connections between the
said cables are led, an operating element movable
removably supported by said ?exible connections
between the head and bottom rails, raising and
vertically with respect to the blind and disposed,
at one side thereof to which said cables are
head rail and the bottom rail, a plurality of slate
ating element will selectively collapse and extend
lowering cables fixed to the bottom rail and pro
jecting vertically through the slats and head rail,
pulleys carried by the casing over which said
the blind, a pulley ?xed on the head rail, an ad
cables are led, an operating element to which
secured whereby vertical movement of the oper
justment pulley mounted in the casing, a cable
said cables are secured, a vertically arranged hol
associated with the last named pulleys whereby 25 low pulley mounted in the head casing at one
rotation of the adjustment pulley will tilt the
side of the blind and downwardly through which
head rail, and means on the operating element
engageable with the adjustment pulley for ro
said cables are led to the operating element, a
socket relatively ?xed on said adjustment pulley
tating the same.
and forming an extension thereof, the raising
3. A Venetian blind comprising a head casing, 30 and lowering cables being of a length when the
a head rail pivotally mounted therein, a bottom
blind is extended to cause projection of a portion
rail, ?exible connections between the head rail - of the operating element into said socket, cable
’ and the bottom rail, a plurality of slats supported '
connections between said adjustment pulley and
by said ?exible connections between the head and
said head rail whereby turning of the adjustment
bottom rails, cables ?xed to the bottom rail and
pulley by means of the operating element when
projecting vertically through the slats and head
the latter is engaged therewith will eifect pivoting
rail, pulleys carried by the casing over which
of the head rail.
.
said cables are led, an operating element movable
vertically with respect to the blind and disposed
6. A Venetian blind comprising a head casing,
a headrail pivotally mounted therein. a bottom
at one side thereof to which said cables are 40 rail, ?exible depending connections between the
secured whereby vertical movement of the oper
ating element will selectively collapse and extend
the blind, a pulley fixed on the head rail, an .
adjustment pulley disposed adjacent one end
of the casing with its axis vertically arranged, 45
a socket member relatively fixed .to said pulley
and depending therefrom, a cable connection be
tween the pulley on the head rail and said ad
justment pulley whereby turning of the adjust
ment pulley will be accompanied by tilting of the
head rail, said operating element having a por
tion engageabie with said socket when the blind
is extended to rotate the ‘adjustment pulley'and
eilect tilting of the head rail.
4. A Venetian blind comprising a head casing. 55
a head rail pivotally mounted therein. a bottom
rail, ?exible connections between the head rail I
head rail and thebottom rail, a plurality of slats
removably supported by said ?exible connections
between the head and bottom rails, raising and
lowering cables fixed to the bottom rail and pro- I
jecting vertically through the slate and head rail,
pulleys carried by the casing over which said
cables are led. an operating element to which
said cables are secured. a vertically arranged
hollow‘pulley mounted in the head casing at one
side of the blind and downwardly through which
said cables are led to the operating element. a
socket relatively fixed on said adjustment pulley
and forming an extension thereof, the raising
and lowering cables being of a length when the
blind is extended to cause projection of a portion
of the operating element into said socket, cable
connections between said adjustment pulley and
and the bottom rail, a plurality of slats supported v said head rail‘whereby turning of the adjustment
by said ?exible connections between the head and
pul‘ry by means of thetoperating element when
bottom rails. cables ?xed to the bottom rail and .00 the latter is engaged therewith will efiect pivoting
projecting vertically through the slats and head
of the head rail. and clutch means-in the socket‘
rail, pulleys carried by the casing over which
for clutching the raising and lowering cables
said cables are led, an operating element mov
thereto to hold the blind in collapsed condition.
able vertically with respect to the blind and dis
posed at one side thereof to which said cables
EDWIN’ A. OLSON.
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