We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
IV. Studio Szvifchboards cud Plugging Box Equipment.
The Studio is equipped with six combination manual and remote control switchboards, each measuring approximately 1 1 feet in length by 10 feet in height, enclosed and protected on all sides and top by wire grille work. The manual sections of the switchboards consist of double-throw knife-switches' for feeding the various lines running to pockets on the side walls and overhead, and are supplied by a double bus bar system. Each of the double set of bus bars is controlled by master knife-switches of high capacity used for manual control of "effect" lighting. In addition to these master knife switches, each switchboard is equipped with from six to eight heavyduty type remote control magnetic switches which are operated from the stage by the director or camera man in a similar manner to the remote control system described elsewhere in this paper. These magnetic switches are of high capacity in order to handle the heavy currents required by the special control and are each equipped with a vacuum dash pot device which eliminates practically all the noise occasioned by the closing and opening of the heavy contacts. It is obvious that this noise would be very objectionable on the stage floor and might interfere with the players and directors. These vacuum dash pots in addition to eliminating the noise, reduce the wear and tear on the remote control switches. The application of remote control switches to these special conditions and the special dash pots with which they are equipped, was under the direction and suggestions of Mr. Walter J. Quinlan, the electrical engineer for the Fox Film Corporation, who is also a member of our Society. In order to obtain the combination manual and remote control in this studio, it was necessary to sectionalize the main bus bars on the various switchboards and intercept each of these sections with a remote control switch of proper capacity.
The wiring equipment consists of heavy feeders to three-wire wall pockets located on the walls around the studio, each controlled by a double-throw knife-switch on its corresponding switchboard. Branch circuits of lower capacity run to the various overhead plugs for direct connection to the top lights without the use of spider boxes.
The system designed for the Fox Studios, while more expensive than any system ever installed in any studio in the world, is considerably more flexible than any other system.
Not only can the lights be remote controlled from the stages out on the studio floor for special effects, but when any change is necessary in the combination or number of lights, it is unnecessary to interfere with the plugging equipment or with the cable connections on the stage floor. To make such a change, it is merely necessary for the electrician to go to the corresponding stage switchboard and throw the various knife-switches connected to certain pockets on to the proper bus bar and proper remote control switch. The advantage of this feature is apparent since there are no overhead footwalks necessary in this studio and changes can be quickly made,
117