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Патент USA US2135647

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1 Nov. 8, 1-938.
'
w. M. S‘TREBY
2,135,647 _
wmbow SHADE
Filed May 12. 1938
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1'
28
29
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Patented Nov. '8‘, 1938
_ ' 2,135,647
UNITED STATES
_
‘
PATENT OFFICE
2.13am
wmnow snana
Waldo M. Streby, North Canton, Ohio
’
Application May 12, 1938, Serial No. 201,522
11 Claims. (o1. 156-;17)
The invention relates to the type
of window '
’
Fig. 11, a fragmentary section taken as on the
shades commonly known as Venetian blinds or
shades comprising a plurality of slats adapted to
line H-l I, Fig. 10.
Similar
numerals
'
_
refer to
similar parts
be tilted'at various'angles to obtain the desired - throughoutthe drawings.
5 lighting effect in a room, depending upon the po
sition and intensity of the sunlight. _
An object of the invention is the provision of a.
shade. of the character referred to in which
mechanism is provided for moving the several
10 slats laterally across a window opening and then
any desired angle.
Generally the- invention consists in providing 10
the slats to any de- . rods at two opposite sides of a window opening,
simultaneously tilting all of
sired angle.
,
a series of lazy tong levers being associated with
each rod and carrying a plurality of spaced
brackets slidable upon the rods, the slats being
Another object is .to provide a shade of this
character in which the slats extend vertically
5 across the window opening.
-
'
axially pivotally connected to these brackets. -
-15
The shade may be constructed with the slats
located horizontally across the window opening
as in the case of the ordinary Venetian blind, but
in the preferred form of the invention, as‘ illus
trated in the accompanying drawings and here- 20
inafter described in detail, the slats may be lo
cated vertically and arranged in two sets or
A further object is to provide such-a shade in
which two sets of slats are arranged to be moved
toward or from each other from opposite sides of
the window opening. -
20
'
The improved shade to which‘ the invention 5
pertains is of the general character or type of
the well-known Venetian blind, being formed of a
plurality of parallel slats arranged to be tilted to
.
A still further object is to provide a shade of the
type above referred to in which the slats are
adapted to be moved across the window opening
and tilted to the desired angle by means of av series so that they may be retracted toward, or
series of lazy tongs and a threaded shaft.
extended from opposite sides of the window
25
The above objects together with others which ‘opening in much ‘the same manner as the ordiwill be apparent from the drawings and following nary window curtains or drapes.
description, or which may be later referred to
In the preferred embodiment of the invention
may be attained by constructing the improved as illustrated in the drawings a horizontal rod
.window shade in the manner illustrated in the I5 is located at the top of the window opening
an accompanying drawings, in which:
being journaled in brackets l6 which may be atFigure 1 is an elevation of the improved shade tached to the window frame in any suitable manapplied to a window, showing the lazy tongs in ner and a similar rod .l‘l may be located at the
the fully extended position and the slats in the bottom of the window opening and journaled in
fully open position,‘
of the improved shade showing the same in the
may have a right hand thread in the form of a
groove l9 upon substantially one-half of its
length and a left hand thread in the form of a 40
groove 20 on the other half of its length.
Two sets or series of lazy tong levers 2| and
22 are associated with the left and right hand
Portions respectively of the upper rod I5. A plu— ,
'
Fig. 5, a fragmentary elevation of the shade in
45. the same position as shown in Fig. 4,
Fig. 6, a fragmentary top plan view of the shade
in the same position as shown in Fig. 1,
Fig. 7, a fragmentary elevation of the portion
of the shade in the position shown in Fig. 6,
50
rality of equally spaced brackets of channel shape
as shown at 23 is connected to each of the sets
of lazy tong levers preferably by means of the
pins 24 which pivotally connect each crossed pair
of the levers, and these brackets are provided 50
with suitable apertures through which rod I5
I
Fig. 8, an enlarged transverse section taken as
on the line 8+8, Fig. '7.
I‘
Fig. 9, an enlarged transverse section taken as
on-the line 9-9, Fig. 5,
-
-
’
-
‘Fig. 10,- an enlarged transverse section taken as
55 on the line I 0—_I ll, Fig. 7, and
'
'
30
,
ing two sets or. series of slats at opposite sides‘of
the window opening, each of the rods l5 and i‘!
‘
Fig. 3, a fragmentary elevation of the ‘shade in
the same position as shown in Fig. 2,
'40 .Fig. 4, a fragmentary top plan view of the
shade showing the lazy tongs in the fully ex
tended position and the slats tilted to closed po
sition,
25
brackets l8 attached to the’window frame.
In order to provide for simultaneously operat- 35
Fig. 2, an enlarged fragmentary, top plan ‘view
fully retracted position.
'
is located for relative rotatable and slidable
.
movement.
4
'
'
The outer end of each of the lazy tongs 2|. and
22 is pivotally connected to an angular bracket 55*"
2
25 which’has a suitable aperture 28 through
which the rod 65 is located.
‘
The angular end portion of this bracket 25,
through which the rod is located, is best shown
in Fig. .11 located substantially in contact with
10
located substantially ?atwise to the window as
best shown in Fig. 5 when the lazy tongs reach
the fully extended position.
,
the adjacent attaching bracket 86 and a friction
washer 21 formed of leather, ?ber or other suit
If it is desired to tilt the slats azdally to the
edgewise position shown in Figs. 6 and 7 or to
any intermediate position between that and the
positionv shown in Fig. 5, when the lazy tong
able friction material is interposed between the
bracket 25 and the collar 28 which is ?xed‘upon
between the retracted and fully extended posi
the rod
l5.
.
I
.
A corrugated spring washer 29 is located be
tween the bracket i5 and the collar 30 ?xed upon
the rod i5 and carrying the sprocket wheel 3|.
This spring washer thus tends to hold the rod IS
15 in frictional contact with the bracket 25 through
the friction washer 21 and collar 28.
A sleeve or bushing 32 is connected at its ends
to the spaced ears of each channel bracket 23
and the innermost bracket of each set or series
20 has a pin or stud 33 carried by said sleeve or
bushing and extended into spiral groove l9 or
20, as the case may be, in the rod l5 so as to
extend or retract the lazy tong levers depending
upon the direction in which the rod I5 is rotated.
evers are fully extended or are at any position
tion, a quarter turn backward upon the shaft
15 will tilt the lazy tongs back to vertical position
as shown in Figs. 6 and 7 and swing the slats to
edgewise position relative to the window as shown
in said-?gures.
'
‘
If it is desired to tilt the slats to a less degree 15
the rod l5 should be given less than a quarter
turn proportionate to the amount of tilt desired.
When itis desired to again retract the shade to
the position shown in Figs. 2 and 3, rotation of‘
the shafts l5 and i1 in the proper direction will 20
retract the lazy tongs and move-the brackets 23
and slats '34 into the retracted position edgewise
to the window as shown in Figs.‘2 and 3.
It should be noted that the lazy tongs are limit
25
For the purpose of connecting the slats 34 to the ' ed to only a quarter-turn around the'rod 15 by
25
brackets 23 a ring 35 is rotatably mounted upon
each sleeve or bushing 32 and provided with a
depending end portion 36 upon which the cor
responding slat 34 is axially rotatably mounted
30 as by a channel clip 31 ?xed to the upper end. of
the slat, the depending end 36 of the ring being
Journaled through the upper portion of said clip
and provided with a head 38.
For the purpose of tilting these slats axially an
means of the stops 43 and 44 at the bottom and
front side respectively of the bracket l6 for con
’ tact with the angular end portion of the bracket
25.
'
,
I claim:
,
I
.
.
30
i
-1. A window shade comprising a rod located
at one sided a window opening, a series of lazy -
tong levers located parallel to said rod,‘ brackets
connected at spaced intervals upon said lazy tong
' levers and slidably mounted upon said rod, slats 35
-35 arm 39 is provided upon each channel bracket,
connected at their ends to said brackets, and
23 and a link 40 is connected at one end to said
arm and at the other end to an ear 4| formed at means for operating said lazy tong levers to slid
'
the upper end of the corresponding slat and at ably move the brackets upon the rod.
the opposite side of the pivotal center of the slat
from the arm 39.
'
Two sets or series of l'azy tong levers 2 la and
22a. corresponding respectively to the lazy tongs
2| and 22 are associated'with the lower rod I‘!
and each has connected thereto at intervals,
'
45 channel brackets 23a. corresponding in construc
tion and location to the brackets 23 of the upper
mechanism.
.
The lower ends' of the slats 34 have channel
clips 31a connected thereto to which are swiv-'
50 eiled the upright extensions 36a of the rings 35a.
Thus the lower ends of the slats are guided and
moved in .unison with the upper ends when the
two rods I5 and II are simultaneously rotated
by means of the endless chain 42 located over
55 the sprockets 3| and3la of the shafts I5 and I1
respectively. '
In the operation of'the improved shade, as
suming the parts to be in the position shown in
Figs. 2 and 3 with the lazy tongs in the retracted
position and the slats turned edgewise with re
spect to the window opening, the rods i5 and I1
_ maybe simultaneously rotated by means of the
chain 42 in a, direction to extend the lazy tongs
and separate the channel brackets 23 and 23a
65
carrying the slats.
\
As the upper rod I 5 is rotated in this direc-v
tion the lazy tongs will be moved from a vertical
position as shown in Figs. 2 and 3 toward .a
horizontal'position as shown in Figs‘. 4 and 5
tong levers located parallel to said rod, brackets
connected at spaced intervals upon said lazy tong
levers and slidably mounted upon said rod, slats
axially pivotally connected at their ends to said.
brackets, means for axially tilting said slats, and
ably move the brackets upon the rod.
,
3. A window shade comprising a rod located
at one side of a. window opening, a series .of
lazy tong levers located, parallel to said rod,
brackets connected at spaced intervals upon said
lazy tong levers and slidably mounted upon said
rod,' slats axially pivotally connected at-their
ends-to said brackets, means for moving the lazy
tong levers around the rod, means operated by 55
the moving of the lazy tong levers around the
rod for axially tilting the slats, and means for
operating said lazy tong levers to slidably move
the brackets upon the rod.
7
4. Awindow shade comprising a rod located
at one side of a window opening, a series of
lazy tong‘ levers located parallel to said rod,
brackets connected at spaced intervals upon said J
lazy tong levers and slidably mounted upon said ;
rod, slats axially pivotally connected at their ends,‘ 65
to said brackets, means for moving the lazy’
tong levers around the rod, links connected to
the slats and to the brackets for axially tilting
the slats, and means for operating said lazy tong
levers to slidably move the brackets upon the
in said ?gures as the lazy tong levers reach the
rod.
1
5. A window shade comprising a screw thread
The link connections 40 between the brackets' ‘ed rod located at one side of a window opening,
23 and the slats 34 will cause the slats to slowly a series, of lazy tong levers'located parallel to
turn upon their axes so that the slats will be‘ said rod, brackets connected at spaced intervals
\
45
means for operating said lazy tong levers to slid
reaching the-complete horizontal position shown
fully extended position shown.
75:
2. A window shade comprising a rod located
at one side of a window Opening, a series of lazy
amass-r
upon the lazy tong levers and slidably and rotat
ably mounted upon said‘rod, one of said brack
ets having a threaded connection with the screw
threaded‘ rod, slats connected at their ends to
said brackets, and means for rotating said rod
, to operate the lazy tong levers and slidablymove
the brackets upon the rod.
6. A window shade comprising a screw thread
. ed rod located at one side of a window open
10 ing, a series of lazy tong levers located parallel
3
ets and means for simultaneously operating both
series of lazy tong levers to slidably move the
brackets upon the rods.
9. A window shade comprising rods located at‘ ‘
oppodte sides of a window opening, a series of
lazy tong levers located parallel to each rod,
brackets connected at spaced intervals upon said
lazy tong levers and slidably mounted upon said
rods, slats axially pivotaliy connected at oppo
site ends to the brackets, means for simultane 10
to' said rod, brackets connected at spaced inter
operating both series of lazy tong levers
vals upon the lazy tong levers and slidably and ously
to slidabiy move the brackets upon the rods, and
rotatably mounted upon‘ said rod, one of said means associated with one series of lazy tong
brackets having a threaded connection with the _ levers
tor axially tilting the slats.
‘
15 screw threaded ‘rod, slats axially pivotally con
10.
A
window
shade
comprising
rods
located
nected at their ends to said brackets, means for at opposite sides of a_ window opening, a series
rotating said rod to operate the lazy tong levers of lazy tong levers located parallel to each rod,
for slidably moving the brackets upon'the rod, brackets connected at spaced intervals upon said
and means controlled by the operation of the lazy tong levers and slidably mounted upon said
lazy tong levers for moving the lazy tong levers rods,
slats axially plvotally connected at opposite 20
around the rod and axially tilting the slats.
ends
to the brackets, means for simultaneously
‘I. A window shade comprising a screw thread
operating both series of lazy tong levers to slid
ed. rod-located atone side of a window open
ably move the brackets upon the rods, and links
ing, a series of lazy tong levers located parallel connected
to the slats and to one series of brack
to said rod, brackets connected at spaced inter
ets for axially tilting the slats.
'
25
vals upon the lazy tong levers and slidably and
11. A window shade comprising a screw thread
rotatably mounted upon said rod, one of said ed rod located at one side of a window opening,
brackets having a threaded connection with the a series of lazy tong levers located parallel to
screw threaded rod, slats axially" pivotally con
said rod; a friction connection between the rod
nected at their ends to said brackets, means for and the lazy tong levers, brackets connected at'
30
rotating said rod to operate the lazy tong levers -
ror slidably ‘moving
brackets upon the rod,
~means controlled by the operation of the lazy
tong levers for moving the lazy tong levers around
.therodandlinks connected tothe slats and to‘
the brackets for axially tilting the slats.
8. Awindowshade oomprisingrodslocatedat
opposite sides of a window opening, a series of
leverslocated parallel to each rod, _
‘m
connected at spaced intervals upon said .
lasytongleversandslidablymounteduponsaid
rcdaslatsoonnectedatopposlteendstc
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