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.
MANAGERS AND PROJECTIONISTS 1061
sound lamp without first retarding the fader you will have a roar of sound which will be very unpleasant.
AN EXTRA EXCITING LAMP READY.— It is
quite obvious that it would be impossible to remove a sound lamp that had burned out, insert a new one and adjust it properly in its socket while projection was in process. That would require several minutes. It also is evident that it always is possible, however improbable it may be, that an exciting lamp will fail right in the middle of a reel.
Those using Western Electric equipment may guard against such embarrassment as attends shutting down the show while a new exciting lamp is installed, by keeping an extra lamp bracket handy, where it may be secured instantly, with a spare lamp adjusted in it all ready for use. All that is then necessary in case of failure of the exciting lamp is to pull out the lamp bracket and shove in the new one, first having retarded the fader to zero. The whole operation may be performed, if the spare lamp and bracket be located handily, in a matter of five or six seconds, including bringing the fader back up to operating position.
ADJUSTING LAMP IN SPARE BRACKET, WESTERN ELECTRIC EQUIPMENT. — The spare lamp may be adjusted in the spare bracket as follows: The lamp base has a pin in its side, which same is passed through a slot in the socket as the lamp is inserted. To insert a lamp, first make sure the clamp screw D, Fig. 395, is loosened. Insert the lamp in the socket, shoving it down until the pin clears the slot and giving the lamp a turn to lock the pin in the place provided. It is imperative that the lamp filament be exactly parallel with