AUTOMATIC FRAMING OF REVERSAL FILM HAVING EDGE KNOTCH AND DEVICE THEREFOR

摘要

In a method and apparatus for automatically mounting reversal film in slide frames, the edge of the film being notched at predetermined intervals, the notches are utilized for feeding the film through the framing apparatus which comprises a pivoted notch-engaging pawl on a reciprocatable carriage and two electrically parallel switches acting independently on a clutch of driving means for the carriage. One of the switches is mounted on the carriage and is operable by the pawl and the other is operable by a rotary cam plate.