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Патент USA US2104907

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Jan. 11, 1938.
‘ 2,104,907
Filed July 6, 1936
5 Sheets-Sheet l
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Jan. 11, 1938.
Filed July 6, 1936
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_ Jan. 11, 1938.
Filed July 6, 1936
Patented Jan. 11, 1938
David Neumann, mileage, Ill.
BCIaims. (Cl. 156-17)
The present} ‘invention relates to Venetian provide a Venetian blind so that all parts of it
in which'the blind or blinds may be installed.
mounted at the top of a window or other frame.
in the component parts are of sheet metal and
The construction of} Venetian blinds as carried
‘10 out at. the present time constitutes fire hazards
harmonize with a decorative scheme of a room
5 '
A still further object of the present invention
is to provide a Venetian blind construction where
adapted- to the usual type of suspension, and
which at the same time eliminates the blind as a . 10
and also require constant cleaning, and at the
?re hazard and also permits suitable decoration
same time do not lend themselves very readily
to decorations of such character as to harmonize
thereof to suit the user's taste.
with surrounding decorative matterrof the room
The above,_other and further objects of the
' present invention will be apparent from the fol
lowing description and accompanying drawings. 15
15 or rooms in which installed.
An'object of the present invention is to pro
The accompanying drawings illustrate an em
vide a'Venetian blind construction, wherein the
bodiment of the present invention, and the views
slats are of thin sheet metal suitably reinforced
so as not to bend under ordinary conditions of
20 use, together with reinforced tilting bar and bot
tom bar, and in addition, the utilization of a
spring roller for collapsing or closing the blind.
' Another object of the present invention is to
, provide a Venetian blind construction wherein the
' 25 tilting and bottom bars are of metallic construc
I tion, suitably reinforced, and each of which bars
carries certain parts of the operating mechanism
of the blind.
' A further object of the present invention is to
- 30 provide sheet metal slats suitably reinforced.
Another object of the present invention is 'to
provide, in a Venetian blind constructic .‘l, a spring
roller for raising or closing the blind.
may be suitably decorated, as by painting or by
plating, such as nickel or chromium plating, to
Ordinarily, Venetian blinds are constructed
with a'series of slats of wood connected together
and supported by ladder‘ tapes of woven or like
fabric. The slats are suspended by the tapes from
a suitable supporting bar 'or header bar suitably
A yet further object of the present invention
35 is the provision of, a bottom bar provided with
means for latching the bar in any desired ad
'justed‘ position, against the tension imposed on
the bar by the spring roller.
thereof are as follows:
Figure 1 is a broken away elevati?'lal view of
a Venetian blind,-constructed in accordance with
the principles of the present invention,‘ shown
opened in a window frame.
Figure 2 is a view partially in section and
'partiallyvin end elevation, looking at the right
hand of Figure 1, wherein the window frame parts 25
are shown in section and the blind parts in end
Figure 3 is a fragmental enlarged view of one
of the guides for the bottom bar, showing a
plurality of lugs struck out from the guide and 30
serving as stops for engagement by'cooperating
members on the bottom bar, and showing in sec
tion one of the cooperating parts in engagement
with one of the lugs to hold the blind in desired
open position.
Figure 4 is a fragmental top elevational view
of the header- of the present invention, showing
the spring roller partially in plan and partially
Still another object of the present invention‘ in section, which illustrates details of construc
40 is to provide a bottom bar with protruding, end‘
wise movable members which cooperate with stop
Figure 5 is a planvview of the underside of on
members formed \in the guides for the bottom , of the metallic slats of the present invention
Figure 6 is an enlarged end view looking at the
any desired vertical position.
left hand end of the header of Figure 1, and show
bar, whereby the bottom bar may be latched in
45 -
The present invention contemplates as an ad—
bracket and in turn the manner of connecting the
spring roller and wherein the tilting bar, bot
Figure 7 is a view partially in section and par
tially in elevation, taken substantially in the plane
tom bar and intervening slats are all so associ
_ 50 ated with the header that the blind as a unit may
be applied to or removed from'a frame.
Another and still further object of the present
‘invention is’ to employ ?at metallic strips as the
lifting elements for the blind.
ing the manner of supporting the header in its 4,5v
ditional'object the provision of a Venetian blind
construction wherein a. header- bar carries the
A further feature of the present
indicated by the 'line VII-VII of Figure 1, show- 50 '
ing in full lines the positions occupied by the
tilting bar, bottom bar and slats when the blind '
is extended or opened and the slats are in hori
zontal position, and showing in dotted lines the
slats tilted in one direction to illustrate the man- 55
2 a
ner in which the blind may be moved so that the
slats overlap one another to prevent openings
Within the header B, a spring roller G is sup
ported for rotative movement in both directions.
through the blind.
In the roller, axially thereof, 1.? a rod 8 which at
Figure 8 is an elevational. view of one of the
one end of the roller, the right hand end as viewed
two-part links utilized'for connecting together
in Figure 4, projects beyond the end of the roller
the slats of the blind.
and enters a circular opening 9 in a bracket Ill
Figure 9 is an end elevation, looking at the which is suitably fastened to the bottom 8 of
right hand end of the arrangement of Figure 1, the header. A nut H or other fastening means
showing the header and its supporting bracket - is employed to ?x the relative position of the
rod 8 and the roller G. The other end of the roller 10
10 and showing a wheel which is attached to the tilt
ing bar for tilting it to change the angularity G is provided with a cap“ which is centrally
of the slatsof the blind and showing one form apertured to receive the hub I3 of a member
extending through the aperture outwardly of the
of tiltingthe bar or oscillating the wheel.
Figure 10 is a fragmental elevational view of cap. I At the inner end of the hub I3 is a head It
to rest ‘against the interior of the cap l2 and to
15 the joint‘ between the two members of the con
necting links showing the arrangement of the serve as 'an abutment for one end of a coiled
spring l5, which spring is wound about the rod
stops to limit the hinging movement of the mem
8 and, somewhere within the length of the roller
bers of the links in such direction as would pre
- vent inward hinging action of the links when
20 the blind is moved to closed position.
Figure 11 is a fragmental front elevation show
ing the manner in which the header is supported
in its bracket and in turn the mannerin which
' the tilting bar is supported by the header.‘
Figure 12 is a- central view through the tilting
bar .of the present invention, showing one-half of
the tilting bar and illustrating certain details of
and arrangement. _
Figure 13 is a view of one-half of the bottom
bar, showing in section a longitudinally extend
ing guide tube wherein operate the latch members
of the present invention.
' Figure 14 is an enlarged vertical sectional view
taken substantially in the plane indicated by the
35 line XIV--XIVv of Figure 13.
Figure 15 is a fragmentalvertical sectional view ~
G is fastened to the roller. The head 14 and
hub l3 are bored to receive‘ the extremity of the 20
rod 8 projecting beyond the roller G at this end,
where the projection is ?attened to provide a
rectangular end l6 which enters a slot I'I formed
in a plate I8 suitably secured to the bottom I of.
the header B adjacent the left hand end of the
roller G.‘ The engagement of the ?attened end
l6 of the rod 8 prevents rotative movement of
- the rod, so that whenever the roller G is rotated
about the rod, in operation, the spring I5 is tight
ened or loosened depending on the direction of
rotation. The spring I5 is so coiled as to cause
rotation of the roller G in a direction, normally,
to raise the screen to closed position.
Wound about the roller G, in axially spaced
relation, are two‘?at metallic straps l9 and 20, 35
the inner ends of which are suitably fastened to
the roller G, and the outer ends of which pass
through-suitably. disposed apertures 2| and 22,
of the lugs of a guideway for latching, the blind _ . respectivkely,'of the slats E. The lower ends of
through one end of the bottom bar showing one
of its latching members inengagement with one
in open position.
Figure 16 is an enlarged fragmentalvertical
sectional view showing the preferred manner of
attaching one of the lifting tapes of metal to the
bottom bar.
The drawings will now be explained.
The tilting bar C is illustrated as fashioned
from two halves 24 and 25, one of which, 25, ap
pears in plan in Figure 12. These members 24
and 25 are preferably semi-elliptic in end ele-, 45
vation, and along their margins are provided with
mounted a'Venetian blind constructed in accord
hinges for receiving connecting hinge pins 21
and 28 for joining together the halves. 24 and 25.
. ance with the principlesof the present invention.
header designated generally as B, a tilting bar
designated generally as C, a'bottom bar desig
nated generally asD, and a plurality of slats des
ignated generally as E.
Referring to Figure 4, it will be observed that
the header B is constructed in the form of an
' open box having a bottom I, a rear side wall 2 and
a front side wall 3. The ends are open. For re
,movably mounting the header B in a frame A,
60 brackets F are utilized.
The brackets F are made
as right hand and left hand for application, re
spectively, to the right hand and left hand stiles
of the frame adjacent the top of the frame. Fig
ure- 11 illustrates a left hand bracket which is
65 fashioned of sheet metal suitably formed to pro
vide a rear attaching plate I which is secured
by means of screws passing through holes 5.
Extending forwardly fromthe plate I is an end
plate 6 from which a horizontally projecting shelf
manner to be later explained.
_ Referring to Figure l, A indicates a window
frame of conventional construction in which is
50 The blind of the present invention comprises a
the straps are secured to the bottom bar D in a 40
1 is fashioned.
Referring to Figure 9, the left hand bracket F
there appearing shows the plate 6 and the leg 1‘.
The right hand bracket is of similar construction
except, of course, with the angular relationship
of the parts 5 and 'i reversed.
eyes 28 which are axially spaced to serve as
It is to be understood that the hinges 26 of the 50
half 24 will inter?t between ‘the hinges 26 of the
half 25.
In order to a?ord intermediate transverse re- .
inforcements for the tilting bar C, plates 29 and
38 are inserted in axially spaced relationship, and 65
each plate is apertured at 3| to provide openings
through which the metallic straps I9 and 28 may
pass. These plates are suitably secured in posi
tion against endwise movement. Suitably fas
tened to the plates 29 and 311 is a centrally dis 60
posed pipe, rodor similar reinforcement member
32 which thus maintains these plates in ?xed
position relatively to each other. Referring to
Figure 12, extending to the left from the plate
29 is a similar reinforcement member 33 which 65
stops short of the extremity of the tilting bar.
In like manner, extending to the right from
the plate 30 is a similar reinforcing member 34, ,
which likewise stops short of this end of the bar.
For closing the ends of the bar C, after the
plates 29 and 38 and the reinforcing members 32,
33 and 34 have been inserted, blocks 35 and 36
suitably shaped to enter the ends of the tilting
bar C are inserted, the inner faces of each of
said blocks being bored as at 31 and 38 to re- 75
ceive the ends of the reinforcing members 33 and
34,’ respectively. It will thus be observed that
the tilting bar C is provided with transverse as
bar 85 which rests at its ends against end pieces
88 and 61 which close the ends of the bar, and
which are fastened in position in any suitable
Well as longitudinal reinforcements.
Projecting from the outer face of the block 35
and in axial alignment with the reinforcements
32, 33 and 34, is a stud 39 having a part 40, a re
duced intermediate part 4| and an end part 42.
Preferably, the diameters of the parts 40 and 42
10 are the same, while the diameter of the part 4| is
less than the diameters of the parts 42 and 40.
Axially movable within the pipe 65 and adja
cent its ends, are plungers 68 and
plunger carries a collar 70 pinned to
collars abut the end closures 86 and
bar. Inturned lugs ‘II are formed in
69. Each
it, which
61 of the
the pipe,
inwardly of the ends thereof, against which 10
washers 1'2 rest. Springs 13 are interposed be
' Projecting outwardly from the outer face of the
tween the collars ‘l8 and washers ‘l2 and func
tion to urge the plungers outwardly of the ends
of the bar, with the collars 10 against the end
pieces 66 and 61. outwardly of the end pieces 15
66 and 61, the plungers are provided with rollers
‘I4 and 15 which travel in channel guides 16 and
17, respectively, secured along the stiles of the
frame A. The plungers project beyond the roll
ers, a?ording ends 18 which, when the plungers 20
block 36 is a stub shaft 43 which has attached to
it, by means of a key 44, a wheel 45. The wheel
15 45 is provided with a hub 46 which surrounds a
portion of the stub shaft 43, as may be readily
observed in Figure 12. ‘The periphery of the
wheel is grooved at 41 to receive av bight of a cord
or cable 48 about a portion of the periphery of
20 the wheel, which cable is secured to the wheel
by means of a screw 49, as may be observed in
are projected, are adapted to engage underneath
Figures 9 and 12, to prevent slippage of the cable
with respect to the wheel. The wheel is pro
vided for the purpose‘ of tilting the bar C, and
the cable 48 is provided for oscillating the wheel,
the lugs 19 which are struck inwardly from the
bottoms of the guides 18 and 11, to thus latch
the bottom bar in adjusted position.
For retracting the plungers out of engagement 25
depending on which of the ends of the cable is
with the lugs, pull cords 88 are attached to the
inner ends of the plungers and, at midlength of
the bottom bar D, pass over rollers 8| and out
wardly through apertures 82' formed in the pipe
65 and the halves 6| and 82 of the bar, where the 30
pulled by the operator.
Referring to Figure 11, a bracket H, which in
'front elevation is right angular, has its horizon
tal leg 58 attached 'to the leg -1 of the bracket F
and also extends beyond the leg ‘I to underlie cords are knotted as at 83 leaving a. handle por
a portion of the header 13. Its vertical leg 5| de
tion 84 which may be grasped to retract the
pends and is provided with a horizontal slot 52
plungers and thus enable closing of the blind or
extending inwardly from the front edge of the , movement of the bottom bar upwardly to engage
35 plate 5|. This slot 52 receives the reduced por
another set of lugs in the guides.
tion 4| of the stud 39 to support the adjacent
The upper half Bl of the bottom bar D is pro-'
end of the tilting bar C in operative position. vided with elongated slots in register with the
In order to latch the tilting bar in the plate 5|, slots 3| in the plates 29 and 38 of the tilting bar,
a hook |8| is provided which is pivoted on a whereby the metallic straps l9 and 28 may enter
40 stud 53 and has spacedijaws 54 to define a recess the bottom bar and be secured about the pipe
- which ?ts over a part of the reduced diameter
65, as is shown in Figures 7 and 16. The straps
portion of the stud, when the tilting bar is in are brought around the pipe 85 and the free end
place. The jaws ?t against the end portion 42 secured to its strap by means of a bolt 85 or like
of the stud to lock the tilting bar against end
attaching means.
wise movement. This arrangement may be
The halves 24 and 25 of the tilting bar C are
readily observed in Figures 6 and 11..
provided with transversely extending elongated
slots 88 and 81, through which the straps |9 and
A similar bracket is secured to the bracket F
at the opposite end ‘of the frame, which bracket
has a depending portion 55 with an aperture 58
in it to receive the stub shaft 4‘; of the tilting
bar C, as may be observed in Figure 12. After
metal. In order to rigidify the slats, the side
margins thereof are underturned and crimped,
as illustrated at 88 'in Figure 5, and along the
ends of the slats are reinforcing pieces 89 secured
as by welding or in any other suitable manner. 65
This construction therefore rigidi?es the slats
to such an- extent as to prevent the slats from
bending or becoming distorted under normal
tilting bar is locked in ‘position by the hook |ll|
as just described, the wheel 45 is applied to the
stub shaft. The plate 55 is providedwith a plu~
rality of indentations 51 (Figure 9) with any
one of which a spring pressed detent 58 cooper
ates to retain the tilting bar C in any- position
conditions of use.
to which it'is tilted by actuation of the cable 48.
In order to permit the metallic straps l9 and 60
. ‘The detent 58 is carried in a recess in the wheel
20 passing through the several slats, apertures
45, as maybe observed in Figure 12, and is urged
’ into engagement with any one of
sions 51 by means of a spring 59
tained in the recess. A cover plate
over the wheel, as shown in Figure
2| and 22 are formed in the slats in proper spaced
relation, with the metal cut away by the forma
tion of the apertures being bent back, as at 95
the depres
suitably re
68 is applied
12, to cover
in Figure 5, to afford rounded surfaces for con
tact with the metal straps and thus prevent abra
it, which plate is removed from the arrangement
sion‘ of the straps.
of Figure 9.
< Metallic links K are utilized to connect the
The bottom bar Dis likewise formed of two
slats E, the tilting bar C and the ‘bottom bar ‘D
70 halves GI and 62, the lower half 82 being shown
in'proper relationship. ,The marginal portions
in Figure 13. The margins of these halves are
provided with hinges 63 for receiving hinge pins
64’ for connecting 'the ‘twohalves together in
relation. Extending longitudinally
88 of the slats, in being rolle'd'back provideifor
receiving hinge pins to connect‘ the various links
The slats E are fashioned from ?at sheet 50
ture 58 and the stud 39 at the other end of the
28 pass, to enable tilting of the bar about its axis,
as shown in Figure 7.
the stub shaft 43 is inserted through the aper
Every link consists of two members ‘9| and 92
. 75 1 and interiorly of the bottom bar D is a pipe or '
(Figure 8). which are fashioned from strips of 76
thin ?at metal.
members 9| and 92 are
thesame, so that‘ the description of one will suf
?ce for both. The link member 9| is, at its
against the tilting bar. When it is desired to
open the blind, fully or partially, the handle 84
of the cord is grasped and pulled downwardly,v
upper end, formed‘ with three projections 93_ which‘ action pulls the bottom bar downwardly
which are separted by slots lengthwise of the and lowers the slats.
If the blind is fully extended, the operator puts
projections, with shoulders 94 formed near the
his hand on the bottom bar, or if the blind is
bases'of the slots. At the other end, the mem- ' partly
lowered, on the uppermost of‘ the collapsed
ber_9| is formed with projections 95, two in num
ber, which are separated from each other by a slats which are against the bottom bar, and're-v
leases the pull on the handle 84, whereupon the
10 slot having, shoulders 96 adjacent the base of the
slot. outwardly of each of the projections 95, the plungers 68 and 69 ‘are projected into position to
metal is cut away, with shoulders 91 outwardly of underlie adjacent lugs 19 in the guideways, thus
the projections 95. The projections 93 and 95 are latching the bottom bar in desired position. The
then curled to provide eyes for receiving hinge bottom bar is held against the lugs because of
the. fact that the metal straps‘ l9 and 20 are al
15 pins. The two members 9| and 92 of ‘a link are
connected together by assembling the members ways under tension.
When it is desired to close the
with the rolled over projections 95 entering the
bases of the slots between the projections 93 of die 84 is graspedand pulled, thus retracting the
plungers to, disengage from underneath the re
an adjacent member with a spindle pin 98 pass
spective lugs ‘I9, whereupon, still ‘maintaining a
ing through the eyes of the rolled over projec
b1ind,'the ham,
tions, thus forming a hinge.
I The uppermost slat E is connected to the tilt
ing barv C by a par of these hinged links K. The
by rotation of the roller G in the proper direction .
as in?uenced by its spring l5.
It will be observed that the Venetian blind
construction of the present invention utilizes a
spring roller for automatically raising or clos
ing the blind when the bottom bar is unlatched
from its retaining means in the frame. This ac
upper'eyes of the upper member 9| receive a
hinge pin 28 which at the same time connects
together the halves 24 and 25 of the tilting bar.
The lower eyes, fashioned as heretofore de
scribed, of the member 92 are connected by a‘
hinge pin ‘Hill which extends through the rolled
over margins 98 of the uppermost slat E.
tion eliminates the usual raising ‘cord employed 30
in Venetian .blinds and, in fact, makes the op
In-like manner, the several slats are connected
eration of the blind as simple as that of lowering
or raising of a shade of the type now in general
together in parallel relationship. The bottom
bar D is connected to the lowermost ‘slat E in
the same manner.
The utilization of metallic straps for raising
the blind structure enables decoration of these
straps in any desired manner. The fact that the
entire blind structure ismade of metal enables '
quantity production at nominal costs. .A blind
constructed in accordance‘with the present in 40
vention is e?icient protection against ?re, as any
By the formation of the shoulders 94, 96 and
91 heretofore mentioned,'hinging movement of
the members 9| and 92 of any link is limited to
- substantially the position shown in full lines in
Figure 7. That is to say, these links cannot
hinge to ‘such ‘a point as to collapse outwardly of
the margins of the slats when the blind is closed.
Figure 10 illustrates in a larger scale the hinged
joint heretofore described between a member 9|
in?ammablematter dropped on the blind will
not burn it. The blind of the present invention
also lends itself to redecorative purposes at mini
and a member 92 of a link K, and showing the
45 vshoulders out of abutting relationship.
mum cost.
bar C.
The invention is claimed as follows:
1. In a Venetian blind construction, a tilting bar
comprising two concavo-convex sheet members 55
ers in the bottom bar are removed from 'the
guides, thereby permitting~ unitary removal of
55 the Venetian blind from the frame in which it
removably secured together along their margins
The blind of the present invention is installed
in any frame A, ?rst, by fastening in position
the brackets F and the guides 16 and 11, where
60 upon the blind structure as a unit is applied by
ment and proportion of parts, and equivalents 50
may be substituted, without departing from the
spirit arid scope of the invention.
The reason for this is that the header
may be slipped outwardly from its supporting
bracket F, and the rollers 14 and 15 of the plung
is installed.
The invention has been described herein more
or less precisely as'to details, yet it is to beun
derstood that the invention is not to be limited
thereby, as changes may be made in the- arange_
The side guides 16 and ‘I1 extend substantially
the full height of the stiles in the frame 'A, stop
ping short, however, of the lower portions of the
bracket members 5| which support the tilting
pulling pressure on the handle, the upper bar
is allowed to raise, which raising is accomplished
and with theconvex surfaces outermost,‘ ?at re
inforcing plates within said bar extending cross
wise and lengthwise thereof in'lengthwise spaced 9
, relation, plugs closing the ends of said bar, a sup 60
inserting the rollers 14 and ‘I5 in the guides 16
and‘ ‘II, respectively, and then sliding the header’
B inwardly on the ledges ‘I of the brackets F.
The blind is then ready for use. In so applying
65 the blind, the tilting bar C has previously been
porting pivot projecting from one of said plugs
and adapted to engage a- supporting bracket, a
pivot projecting from the other of said plugs and
carrying a wheel keyed to it, a plate supporting
thev hub ‘of .said‘ wheel as a journal, lengthwise 65
extending reinforcing means connected between
is’ latched in position in the' brackets, by means . said plug- and plate to provide longitudinal ri
attached to the brackets for supporting it and
of the hook |0|.
As thus installed, the cables or cords 49 extend » '
70 forwardly and may at their extremities be pro
vided with handles for easy gripping-and for
tilting purposes. By reason of the tension placed
on the straps l9 and 20 through the medium of
the spring I5, the blind is normally maintained
75 in closed position, with all of the slats resting
‘gidity, said sheets and plates being apertured
for passing raising straps therethrough, and‘the
apertures in said sheets being longer widthwise 70
of the bar than the apertures in the plates to en
able oscillation of said bar about its pivotal sup
. port without bending said straps.
2. In a Venetian blind construction, a tilting ,
bar comprising two concave-convex sheet mem
gins and with the convex surfaces outermost, re
inforcing means within said bar, closure means
for the ends of the bar, and means projecting
outwardly from said closure means serving as
centering means for said bar as it tilts.
3. In a Venetian blind construction, a tilting
bar comprising'two concavo-convex sheet mem
bers arranged with convex surfaces outermost
10 and connected together alongv their margins by
eye and pintle pin joints, closure means for the
ends of said bar, and means extending outwardly
of said closure means and lying in the longitudi
nal axis of said bar for engaging cooperating
means to therewith serve as the axis of tilt of said
4. In a Venetian blind construction, a tilting
- bar comprising two concavo-convex sheet mem
bers arranged with the convex surfaces‘ outermost
20 ‘and connected together along their margins'by
eye and pin joints. and closure means for the
ends of‘ the bar.
bers removably secured together along their mar
5. In a Venetian blind’construction, aplurality
of elongated metallic slats each having its longi
tudinal margin rolled back to provide pin-re
ceiving sockets with portions of the rolled back
margin cut away to de?ne a recess to receive the
end of a. hinge link, and metallic hinge links con
necting spaced opposed slats to maintain them
in connected and parallel relation‘ to each other,
said links each having an end entered between
rolled back portions of the longitudinal margin 10
of a slat and hinged to said slat.
6. In a Venetian blind construction including
a plurality of elongated slats and hinge links
hinged to the longitudinal margins of the slats
to maintain the slats in superimposed parallel 15
relation to each other, an elongated metallic
slat having its longitudinal margin rolled back
to de?ne pin-receiving sockets with portions of
the rolled back margin‘cut away to receive the
end of a hinge link.
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