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982 MOTION PICTURE PROJECTION
Figure 424 is a photograph of part of Famous Players-Lasky L. I. C. studio, showing stages set up with top lights, etc. The scene docks are shown to the right. In the foreground of this photograph is a cable dropping down from overhead to a portable Monitor station on the floor which is used by the camera man or director. The photograph does not show any stage set up at this particular point, but these cables may be dropped to any part of the floor as desired.
The Monitor Studio Remote Control Station as shown in Figure 425, specially developed for the Famous Players-Lasky Corporation and Fox Film Corporation by the E-J Electric Co., consists of a series of "break-back" switches which are thrown from one side to the other or held in a neutral center position similar to the listening keys on a telephone switchboard. These stations are ruggedly made and designed to stand all the abuse which equipment of this kind is subjected to in a studio. The pinplug connector coupling at the top permits removing the station from the portable cable so that it is unnecessary to hoist the heavy box out of the way. The left vertical key of this device is a Master which controls the left positions of all of four of the sectional keys. The left positions of the remaining two sectional keys are connected directly to the line and are not controlled by the Master. The upper right vertical key is also a master which controls the right positions of all of the sectional keys. By means of the Master keys, two large groups of lamps can be controlled in one operation and by means of the lower left positions of the two lower keys, a third group of lamps can be controlled independent of