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332 Transactions of SM.P.E., February 1927
Baudry, (F. p. 540,328, 1921). KoHN (F. P. 562,217, 1922).
In these twin cameras with two films were used, with one picture space
between each successive picture. These blank spaces being subsequentlyfilled in with the alternate positives. Maximoff (F. p. 548,981, 1922).
Negatives, on two films or wide film, simultaneously or successively taken,
or by prisms or mirrors. Kakabadze (F. p. 547,978, 1922).
Twin cameras. Plantron, (F. p. 582,570, 1924).
Side by side cameras. Class B, with Twin Lenses, with and without Convergent Axes:
In addition to the older patents already cited in connection with this system
we have : Holmes (U. S. P. 10,987, 1854).
Convergent lens axes for daguerreotypes.
The following are actually cine patents: Sandow (E. p. 17,565, 1897).
Twin lenses for simultaneous exposure, preferably on single film. Gergacsevics et al. (F. p. 385,635, 1907).
Simultaneous or alternate exposures, one being through the back of the film. ViLLARD (F. P. 386,946, 1908). Warman (U. S. p. 1,146,293, 1915).
Adjustable convergence of axes by hand wheel on turntable. Maslenikoff (F. p. 412,164, 1910).
Twin lens camera Vv^ith two or double-width film. Or prisms may be used. Mazo et al. (F. p. 431,967, 1910).
Negatives taken on horizontally moving film, with one or more picture
spaces in between, which are subsequently exposed. Theodoresco et al. (F. p. 449,996, 1912) .
Horizontally moving film. Coulon (F. p. 441,751, 1912).
Three images are obtained side by side on wide film, the outer ones being
stereoscopic. Cooper et al. (F. P. 477,440, 1915; U. S. P. 1,259,365, 1918).
Two films used. The lenses are adjustable as to separation. Henley (E. P. 106,373, 1916; U. S. P. 1,284,673, 1918).
Twin lenses; may be used foT color work. Terashima, (E. p. 107,795; 107,796; 107,797, 1916).
Pictures taken on film moving horizontally. Lenses not on same level. PoLACK (F. P. 528,184, 1917). LosEY, (U. S. P. 1,291,954, 1919).
Negatives vertically over one another on alternate spaces of horizontally
moving film. Red and green filters are used. Claims results are seen in
natural colors. Prud'homme (U. S. p. 1,350,836, 1920; F. P. 545,323, 1921).
Pictures taken 'dissimultaneously'. HocKLY ET AL. ( E. P. 177,916; 178,344, 1921). Petra (D. G. M. 764,433). PiCTETET AL. (F. P. 547,591, 1922).
Horizontally moving film with pictures not on same level. Macy (U. S. p. 1,545,470; 1,545,589).
Twin lenses and film shifted between exposures. Wilson (E. P. 197,409). Hewson (F. p. 590,815). Ranthe (D. R. p. 413, 231).
Cine stor(H) [)()rtruiis for individuals. Hoffman (E. P. 198,859).