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150 Transactions of S.M.P.E., March 1926
proof stratum being interposed when necessary, just as is done
between the strata in the case of the Lumiere Autochrome
plates."
This patent was filed Dec. 3, 1912.
Claim 1 : Process of producing a color cinematographic picture film for projectic/' without the aid of color screens or filters which consists in making each complete picture of said picture film a composite helichrome, more or less simulating the colors of nature by taking a single original or negative band exposed through recurring color filters, printing on a light sensitive surface from said negative band, treating such surface so that each of the positive images thereon will appear in color complementary to the color of the filter used in taking the corresponding negative image, printing on a fresh light sensit ve surface from said negative band, said negative band being stepwise shifted in relation to the previous printing, and treating such fresh surface so that each of the second series of positive images thereupon will appear in color complementary to the color of the filter used in taking the corresponding negative image, each positive image in color of the above recited first printing and the above cited first color treatment forming one element of a composite helichrome and each positive image in color of the above recited second printing and the above recited second color treatment forming the other element or another element of a composite helichrome, a si7iqle transparent base being the final support for all the light sensitive surfaces. Wm. Francis Fox, No. 1,187,421. June 13, 1916
Specification, page 4, lines 83-91 : "The originally emulsioned surface of the positive film having been utilized as above pointed out, it is desirable to form a new emulsioned surface thereon, and this may be done either by applying the emulsion to the reverse side of the fiim or, if preferred, by varnishing the previously emulsioned surface and then re-emulsioning that surface over the varnish." R. Fischer, U. S. No. 1,055,155. March 4, 1913
Division C — 'Where the images are printed in black and white on a single coated film and color added by hand painting, stenciling, or imbibition.
V. Sciamengo, U.S. No. 1,036, 730. Aug. 27, 1912 A. Wykoff and Max Handschlegl,V. S. No. 1,303,836. May 13,
1919