US1714717A - Apparatus for producing motion-picture effects - Google Patents

Description

APPARATUS FOR PRODUCING MOTION PICTURE EFFECTS Filed Nov. 12, 192.7

7. if FuQAjnN@ QL u Patented May 28, 1929.

UNITED STATES PATENT orrlciz. i

LAUIB'REY B. LEECI'H, 0F LOS ANGELES, ALIFOBNIA.

APPARATUS FOR- RBODUGING 'MOTIQN-IC'IURE EFFECTS.

Application med Novemberd 12, 192?. serialNo. 232,830.V

J .This invention relates to illuminated signs wherein the illusion of motion is produced.

The main objects of this invention are to provide an improved form of advertising sign wherein `the illusion of oatmg clouds traveling at'variable speeds is produced, andV to provide a sign of this character m which" various objects can be arranged so as to produce the illusion of the objects lioating on 1o moving clouds.

An illustrative embodiments of this invention is shown in the accompanymg drawing, in which Figure 1 is a front elevation of the im` l5 proved device.

' Fig. 2 is an enlarged sectlon taken on the line 2 2 of liig. 1.

Fig. 3 is a section taken on the line 3-3 ofA 'Ihis invention is of the same general character as that shown in my United States Patent No; 1,369,751 dated February 22, 1921, wherein a rectangular box-llke structure l is provided with a plurality of sources of light 2 arranged side by slde 1n 1ndepend ent units in spaced relation to each other.

Each of the sources of light is surrounded by a cylindrical screen 3 open at the bottom and having the top end provided wlth a pluralityof radially disposed inclmed vanes'll. j The vanes 4 are attached at their outer ends to the screen 3 andat theirv inner ends to a supporting hub 5 which is pivotally mounted on a framework 6 in the manner described and shown in the aforementioned patent.

The surfaces of allthe cylindrical 'screens 3 are painted with polychrome colormgs so that the various portions of thej screens have different degrees 'of permeability to light` l40 rays.v

A Vtranslucent screen 7 is disposed in front of the cylindrical screens preferably parallel to the axes ofthe cylindrical screens,

so that when the cylindrical screens are rotated the light therein will project variegated -colorings ont the translucent screen to produce the illusion of colored moving clouds.

A transparent screen Sis provided in front of the screen 7 in spaced relation thereto and is adapted to have any suitable'object 12 pic' tured thereon. n

In the present construction, the sign l 1s shown h ing three sources of light and three cylindri screens 3, 3A and 31?, the arrangement bei g such that a space 1s left on each A side of the center cylindrical screen. Projjection boxes 10 and 11 are located in the Yvanes 4 and thereby rotating spaces between the screens and eachfbox is providedwith a suitable source of light13. rIhe face thereof is provided with transparent or cut-out lettering 14, so that the light in the b ox projects such lettering onto the` appear to move slowest at ,the point where' the cylindrical screen is nearest to the screen 7, and the farther from ,this point the faster the projected rays travel along the surface, thereby-producingthe effect of clouds moving at variable speeds, first slowly and then adually faster until they blend into` the ast moving projected rays of the next succeeding screen. They then appear to slow up until they reach the center oint and then increase in speed again until they blend into those of the next following screen.

device, the heat The object 12pictured on the transparent screen 8, being`'^in spaced relation to the screen'7, has the appearance of floating on the colored clouds invery life-like manner.

Although but one specic embodiment of this invention has been hereinshown and described, it will be understood that numerous details of the construction shown may be altered or omitted without departin from the spirit of this yinvention as-defined y the following claims.

I claim:

1. In a device of the class described, a plurality of sources of light arranged side by side, a cylindrical screen surrounding each of said sources of light, means for rotatin saidscreens, variable coloring on each of sal screens, different portions of said screens hav-v -ing different degrees of permeability of light rays, a translucent screen disposed in front of said cylindrical screens whereby the illusion of clouds movingy at variablespeeds is proparent screen disposed in front of said translucent screen in spaced relation thereto, said transparent screen havmg an object pictured duced on said translucent screen, and a transthereon ivhereby the illusion of said object said sources of light, meansfor rotating said screens, polychrome coloring on each of said screens, dierent portions of said screens having dierent degrees of permeability to light rays, a translucentscreen disposed parallel to the axes of said cylindrical screens whereby the illusion of clouds moving at variable speedsis produced on said translucent l screen, and a transparent screen disposed in front of said translucent screen in spaced relation thereto, said transparent screen having an object pictured thereon whereby the illuisr produced.

. 3. A device of. the class described comprising a' pair of spaced translucencies one of said translucencies bearing the representation of a stationary scene, means for projecting a stationary image on the other translucency for providing a stationary background,

sion of said object floating on moving clouds and means for producing moving images on f the last mentioned translucency for providing a moving background.

Signed at Los, Angeles this 12th day of October, 1927.

AUBREY B. LEECH.

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