Handbook for motion picture and stereopticon operators (1908)

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8 Contents PAGE Drying the film 32 The temperature 33 The chemicals 33 Judging negatives 34 Dark-room illuminant, the best, and how tested 34 Printing. The light, and continuous feed 37 Portable printer 37 Imperfect registration 38 Cabinet printer 40 Developing the positive 42 Chromogene colors 42 Automatic changing tints 42 Perforating. The kinds of perforations, and why adopted . . 44 Sprockets and the shape of the teeth 45 Different widths of film 46 Reciprocating table perforator 46 Rotary punch, how made, and why 48 Depue's perforator 50 Joining or splicing the ribbon 50 The best splicing solution 52 Coating the Web of Celluloid. The coating machine 54 Splitting the web into ribbons 54 Measuring the film 54 New substance for film 55 Lantern Projection. Projecting machines and supports 56 The pilot-light 58 The booth 58 Professional machines 58