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Патент USA US2403661

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'July 9, 1946.A
- l
Filed Jan. 25, 1945
AAzßfß’nß. Hum'y
Patented July 9, `1946`
2,403,661 l
’ UNiTïso~ísTA?rBs . PATENT ~ OFFICE
, 2,403,661
B. Hurley,
1945, 'Serial No.
N. 574,567y
` 46 Claims.A (Cl. 1GO-¿3517)
This invention relates toimprover?entsin sup
, ' Referring still. to Fig. 3, it will be observed that
portsr for flexible sheets or screens and has for f
each of Athe apertured end-plates 6 and‘i has two
its principal object .to provide a collapsible mo
tion-picture-screenassembly which complies with'
portability requirements of 'compactness light
ness, rigidity,'ease of assembly„and adjustability
with respect to the.line-ofásight- of the audience.
Another'and important object of the inven
tion is to provide an improved assembly of the
generalcharacter described and one constituted lo
keys or pins 8 secured thereto, each on its own
chain 9. These pins 8 when seated in appro
priate apertures Ill in the end plates 6 and ‘I
serve to maintain the arms 2 to 5 in the position
in which they are shown in Fig. 1, i. e. with each
pair'of arms arranged inthe form of a V whose
apex lies adjacent to oneof theends ofthe cen
tral rod I. When thus extended the ends of the
of a very small numberofsubassemblies wherein
arms 2 to 5 inclusive define. the rcorners of a rec
the parts are permanently joined one to another>
tangle of an area greaterthan that of the rec
tangular screen which' it is designed to support.
to prevent the loss of any one of saidparts.
Another'and speciñc object of the present in
The perimeter or sides of the rectangle whose
vention is to provide a novel, collapsible ten 15 corners are defined by the ends of the hollow
sioned-wire frame >for -a fabric or other flexible
metal rods 2, `3, 4 and v5, are, formed by a wire
or cable Il which extends between the saidcor
screen, and one wherein the wire is not subject
to snarling when the frame is in its collapsedV
ners. This cable I I is broken in one or more
" places to allow the arms I to 5 vinclusive to be
Other objects and advantages will be apparent 20 rfolded. and is tightened atV the break by one or
and the invention itself will be best understood
more turnbuckles I2. In practice it has been
found that the cable is less likely to snarl if it
upon reference to the ,following speciñcation and
to the accompanying drawing wherein:
is made up of four discrete sections with the ends
Fig. 1 is a front elevational-view of a collapsi
of each'section permanently secured to the arms
ble motion-picture-screen assembly embodying 25 which it connects. In this case the top and bot
tom sections IIa and IIb of the cable are made
just long enough to equalize the stress applied to
Fig. 2 is an elevational view showingthe op
positely` located supports or legs for the frame
the arms 2, 3, 4 and 5 by the turnbuckles I2 in
of Fig. l, in their folded or collapsed condition.
the other two sections of the cable.
Four springs I3 fastened respectively to the
Fig. 3 is a View in perspective of the screen 30
frame of Fig. l in its- collapsed condition and
outer ends of the arms 2, 3, 4 and 5 maintain
Fig. 4 is a fragmentary view in perspective
the screen I4 under tension when connected to
grommets I5, on th'e edge or selvage I6 of the
showing the connections between the frame of
Fig. l and its supporting legs.
screen. Several snap fasteners H on the periph
In the embodiment of the invention which has 35 eral cable II engage other grommets I5a on the
selvage I6 and further tighten and secure the
been selected for illustration the several parts
of the apparatus form three discrete sub-asserná
screen I4 within its frame.
As previously indicated and as shown in Fig. 2
blies, including a collapsible frame or truss (see
’ the invention and completely assembled.
Fig. 3) and two pairs oi legs (see Fig. 2).
the two pairs of legs 2l, 22 and 23, 24 which
frame'in the instant case comprises a central, 40 support the frame for the screen I4 above the
preferably hollow, metal rod I and four prefer
ably shorter arms, 2 to >5 inclusive, of similar
stage or ground comprise 'separate sub-assem-blies. Each of these sub-assemblies includes an
apertured plate 25, to which the legs are pivotedly
hollow construction. The arms 2 and 4 are piv
otedly secured to an apertured plate G at one
attached, and a short hollow arm or socket 23
end of the central rod I and the other pair 3 and 45 which is rigidly aflixed to the said plate and pro
5 are pivotedly secured to a similar plate 1 on '
trudes beyond the pivoted‘ ends of the legs. .The
the other end of the rod I. As more clearly
shown` in Fig. 3, the > pivot points 2a and 4a for
the arms 2 and 4 on the plate 6 are oli-set from
internal size of each socket 26 issuch that it is
~ adapted to receive the end of one of the lower
arms 4 or 5 of the frame as- shown in Fig. 4.
the central rod i, Whereas the arms 3 and 5 are 50 distance the frame of the screenlll issupported
connected to the plate 'l at points- 3a and 5a
above the ground is determined by the angular
setting of the legs, that is to say, the larger the
Which-be adjacent to the central rod I. Thus,
angle the lower the frame. The' apertured plates
when the frame is collapsed, the arms 3 and 5
fall between the arms 2 and 4 to form a “bundle”
25 are each provided with two chained keys 2?
of minimum size.
I56 28 which when entered into selected ones of the
radially arranged apertures serve to fix the legs
to said rod-like members through said wire-like
in a desired angular position. As shown in the
drawing the legs may themselves be provided with
key holes but this is not essential provided that
screen support.
4. The invention as set forth in claim 2 and
wherein said screen-securing means include a
the keys 21 and 28 are long enough to extend
through the apertured plates 25 and abut the
corners of said rectangle.
plurality of springs disposed respectively at the
5. A collapsible support for a ñeXible screen,
said support comprising a central rod-like mem
ber of a length less than that of said screen, a
hinge disposed at each end of said member, a
outer surface of the legs.
It will now -be apparent that the present in
vention provides a novel and compact collapsible
screen, and one'- further characterized by the sim- ,-
pair of rods of duplicate construction extending
radially outward from each hinge to define the
plicity and economy of its parts and by its ease of
What is claimed is:
1. A collapsible supportl for a rectangular
screen, said support comprising a plurality of
rod-like members, means connecting said rod-f
like members in the form of a truss wherein the
corners of a rectangle of an area greater than
that of said screen, a plurality of wire-like mem
’ bers secured to said rods adjacent to the free
rod-ends define the corners of a rectangle of an
area larger than that of said screen, tensionable
means connected to said rods adjacent to their -
said ends and adapted to form the sides of said
rectangle, and means disposed in spaced relation
along the said sides of said rectangle for >securing
lsaid screen thereto.
2. A collapsible support for a rectangulart
screen, said support comprising a plurality of
rod-like members, means connecting said rod
like members in the form of a truss wherein the
rod-ends deñne the corners of a rectangle of an
area larger than that of said screen, wireelike so
means connected to said rods adjacent to their
said ends and adapted to form the sides of said
rectangle, and means disposed Vin spaced relation
along said wire-like means for securing said screen
3. The invention as set forth in claim 2 and
wherein means are provided for applying stress
ce Cl
ends thereof and adapted to form the perimeter
of said rectangle, a plurality of turnbuckles at
tached to adjacent ends of said Wires, for ten
sioning said wires, Iand spring means secured ad
jacent to the said free-ends of said rods for sup
porting said screen upon said tensioned screen
6. A collapsible support for a rectangular
screen, said support comprising three sub-assem
blies including a frame and two pairs of support
ing legs, said frame comprising a plurality of
hinged rods, the free ends of said rods being
swingable to define the corners of a rectangle
of an area larger than that of said screen and
to which rod-ends said scrcen'is adapted to be
connected, the legs of each pair being adjustably
connected one to the other, and means for remov
ably connecting said pairs of legs respectively to
the rod-ends which form two adjacent corners
of said rectangle.
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