US829276A - Method of projecting pictures. - Google Patents

Description

B. A. LEVY. METHOD OF PROJEOTING PICTURES.

APPLICATION FILED SEPT. 2.1905.

13 i Memes WWW PATENTED AUGQZl, 1996.

Snuantoz No. 829,276. PATENTED AUG. 21, 1906.

B. A. LEVY.

METHOD OF PROJEGTING PICTURES. APPLICATION FILED SEPT. 2.1905.

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STATEg PATENT @FlFiQE.

BER'JRAM ALBERT LEVY, or NEW YORK, n. Y.

illETitQD {3F PRQJEQTlNG PlQTLERESU Specification of Letters Patent.

Patented; Aug. 21, 1906.

Application filed September 2, 1905. Serial No. 276,860.

To all whom it may concern:

Be it known that I, BERTRAM ALBERT LEVY, a citizen of Melbourne, Australia, and resident of the United States, residing at ew York, in the county of New York and State f Iew York, have invented certain new and useful improvements in Methods of Projecting Pictures and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

lily invention relates to improvements in methods of projecting pictures; and the object of my invention is to show upon a screen a slowly-growing picture, which grows as the artist sketches it in lines of white or colored light upon a dark background.

My invention will be understood by reference to the accompanying drawings, in which .lligure 1 shows the simplest form of the a paratus. Fig. 2 is a front view of the screen, showin the picture it appears thereon, and i 3 shows an improved form of the apparatus with a picture projected. on the screen.

itcfci'ring first to Figs. 1 and 2, a represents a s-rccn of any suitable material, as white cotton fabric, for instance. 6 represents a magic lantern. 0 represents a slidesupport for the magic lantern, leaving the lens of said lantern entirely unobstructed, and d represents a slide having its front face covered with a black or other opaque coating, which can be removed by any suitable means, such a pencil, brush, or stylus. The apparatus is of course to be used in a perfectly dark room and is so arranged that the screen appears perfectly black or of any other desired color when the glass slide d is in the front of the magic lantern. The artist then takes a pen, pencil, or brush and draws a picture upon the slide (1 by removing the coating in certain places. The result is that a picture appears on the screen greatly enlarged in lines of white or colored lightupon a dark background. The artist of course varice the picture as he pleases. it may represent persons, events, or may illustrate a story which the artist tells as he sketches. he apparatus is so arranged that the screen is absolutely unobstructed, and nothing apthereon but the slowly rowing pic ture, except that in some cases the shadow of pencil is seen. This does not destroy the illusory effect, but rather heightens it if anything.

In the form of device shown in Fig. 3, 1 represents a lantern of any desired construction, but preferably containing a strong electric light having a lens 2. 3 represents a platemirror arranged at an angle to the lens, so as to throw the lines of light upwardly through another lens l. 5 represents a slide, preferably of glass, which is provided with an opaque coating on its upper surface, which coating may be readily removed by a pen, brush, or stylus. It should be noted that the space above the slide 5 is perfectly unobstructed, so that the artist can sit on a chair in front of the table 9 on which the apparatus rests and can sketch freely upon the slide 5, moving his body and arms into any position he may wish. The rays of light which pass through the slide 5 after a portion of the coating has been removed are received upon a lens 6, which directs them upon a concave mirror 7, which throws an enlarged image on the screen 8. The lens 6 is carried by the hanger 10 on the rod ll and may be moved up or down to vary the size of the image, and the mirror '7 is also pivotally mounted on the hanger l2, fastened to the rod 11, and is arranged to swing in the arc of a circle, so as to throw theimage up or down on the face of entirely from the screen.

With this apparatus the artist by drawing a picture upon the slide 5 will cause said picture to be reproduced greatly enlarged upon the screen in lines of white or colored light on a dark background, and the audience sitting in the dark will not be able to see how it is produced, the result being very striking. The greatest freedom of movement is provided for the artist, and, in fact, it may he said that with this apparatus the services of an artist and not a mere copyist are neces sary, the result being that any sort of a picture may be produced, not only a line picture but ictures with brush effects and theroug y perfect in t chnioue or color effects.v The magic lantern may e placed either in front of or behind the screen, which in the latter case must be made of thin translucent material.

the screen, as may be desired, or to cut it off Having thus described my invention,v what I I claim as new, and desire to secure by Letters Patent of the United States, is

l. The method of projecting pictures,

which consists in sketching a picture upon asmd. medium, receivi S211 mss through said medium upon a holding L115: i; sbmmenu in such a position as to aliov: the free/1y at all tilns ihmuqh uh/s 1311? medium upon said 2 r sen 'wlmmby siowiy-gxrov111;: pictur 11; mn he screen the artist sketches,

y as isscribecs *f whereof L my signature BBL LEVY,

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