An Automatic Daylight Continuous 35-MM. Projection Machine
A. B. Scott · Journal of the Society of Motion Picture Engineers · 1936
The S. C. K. projector (Fig. 10) is intended for continuous projection from a large loop of film during long periods of time. The machine is equipped with a single magazine into which is built the non-rewind device. Pictures may be projected upon a reflecting screen in the usual way or upon a translucent sand blown glass screen. For the latter type of projection the various elements in the sound reproduction system can be rearranged in thirty-five seconds. The machine is provided with an automatic cut-off, which, in case the film breaks, stops all moving parts as well as the light and the sound, before the film travels eight frames.