Патент USA US2403661код для вставки
'July 9, 1946.A - A_ HURLEY ‘ - l A 2,403,661 COLLAPSIBLE MOTION »PICTURE SCREEN ASSEMBLY » Filed Jan. 25, 1945 /ß *A a "164,44 - . , fly?. - 'ff' \ y ~ ~ _ INVEN'ToR. AAzßfß’nß. Hum'y ` BY l ' _ irme/vif . i Patented July 9, `1946` 2,403,661 l ’ UNiTïso~ísTA?rBs . PATENT ~ OFFICE , 2,403,661 MoTIoNAPIc'rURE-SCREEN ASSEMBLY l , -Application 4AlbertJanuary B. Hurley, 25,Huntington, 1945, 'Serial No. N. 574,567y 1 Yi l ` 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 condition. ' " 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 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 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 2,403,661 4 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 assembly. 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 thereto. ~ ` ' _ 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 support. 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. ’ ALBERT B. HURLEY.