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Publication numberUS1798078 A
Publication typeGrant
Publication dateMar 24, 1931
Filing dateAug 1, 1928
Priority dateAug 12, 1927
Publication numberUS 1798078 A, US 1798078A, US-A-1798078, US1798078 A, US1798078A
InventorsPaul Planer, Remigius Geyling
Original AssigneePaul Planer, Remigius Geyling
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Projection surface particularly for use in connection with advertisements
US 1798078 A
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Description  (OCR text may contain errors)

March 24, 1931. R GEYUNG ETAL 1,798,078

PROJECTION SURFACE PARTICULARLY FOR USE IN CONNECTION WITH ADVERTISEMENTS Filed Aug. 1, 1928 Patented Mar. 24, 1931 REMIGIUS GEYLING AND PAUL PLANER, O F VIENNA, AUSTRIA PROJECTION SURFACE PARTICULARLY FOR. USE IN CONNECTION ADVERTISEMENTS WITH Application filed August 1, 1928, SerialNo. 296,854, and in Austria Augult 12, 1927.

This invention. relates to projection surfaces of very large dimensions whichare erected in the open and adapted for the proj ection of advertisementsand the like. Such 5 large surfaces are directly exposed to the wind-pressure and must be provided with structures, screens or screening surfaces for obstructing undesired light.

According to the present invention, the

m essential feature of the projection surface resides in the fact that the small individual freely swinging and reflecting plates which form the projection surface are each combined with a screen or a screening surface, which participates in the swinging movement of thesm'all plate.

. One mode of carrying out the present invention is illustrated by way of example on the accompanying sheet of drawings in which Fig. 1 shows a projection surface of very large size and the projection apparatus arranged on a road.

Figs. 2 and 3 are detail views in perspective and diagrammatic side elevation respectively.

A frame l of iron, reinforced concrete or the like is arranged across a road and takes up the entire width of the same, the said frame being at such a height from the level of the road, that it does not obstruct the traflic. A network consisting of horizontal and vertical wires 2 and 3 (Figs. 2 and 3) is stretched across the frame 1. Small plates 4 of white enameled sheet-iron, aluminium plates or. of any other suitable material are suspended freely movable from the vertical 7 wires 3 within the meshes thus formed. At the bottom and lateral sides of the small plates is provided a small clearance, so thatthe strange light from the in known manner.

projection surface The projection apparatus can be arranged, in towers 6, which also may be used as advertising pillars.

Owing to the dividing of the surface into individual swinging plates the wind is deprived of the greatest part of the attacking surface, so that the frame 1 or the entire supporting structure can be of av considerably weaker construction than it is possible in the case of solid surfaces.

The vertical intermediate spaces between the plates are not enlarged during the swinging motion, this taking place only in the event of the horizontal intermediate spaces, and therefore in case of a stronger wind-pressure only a horizontal lining will be visible on the projected image, the said lining becomin finer if the height of the plates is reduce Therefore the distance between the vertical wires can be of such a large size, as will be allowed by the rigidity of the construction. Thus according to the present invention the width of the plates exceeds the height of the-same.

e claim 1. A projection surface including a characterized in that each of said plates is bent to provide the screening surface, the

latter being normally disposed in a substantially horizontal position.

In testimony whereof we have aflixed our signatures.

REMIGIUS GEYLING. PAUL PLANER.

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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2796802 *Dec 15, 1953Jun 25, 1957Attilio D AlessandroRotatable outdoor advertising projection display billboard device
US3961839 *Sep 12, 1974Jun 8, 1976Brobst Clarence OIndoor-outdoor image projection system
US5491584 *Jun 16, 1994Feb 13, 1996Cinerent Open Air AgPivotal, large area cinematographic screen for open-air performances
US5584554 *Jul 11, 1994Dec 17, 1996E. C. I. Marketing, Inc.Projector signage and control system
EP0631174A1 *Jun 20, 1993Dec 28, 1994Cinerent Open Air AGTiltable large-scale screen for open-air presentations
Classifications
U.S. Classification359/450, 40/560, 40/613, 359/443
International ClassificationG09F19/12, G09F19/18
Cooperative ClassificationG09F19/18
European ClassificationG09F19/18