Handbook of projection for theatre managers and motion picture projectionists ([1922])

Record Details:

Something wrong or inaccurate about this page? Let us Know!

Thanks for helping us continually improve the quality of the Lantern search engine for all of our users! We have millions of scanned pages, so user reports are incredibly helpful for us to identify places where we can improve and update the metadata.

Please describe the issue below, and click "Submit" to send your comments to our team! If you'd prefer, you can also send us an email to mhdl@commarts.wisc.edu with your comments.




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.

302 HANDBOOK OF PROJECTION FOR The ceiling should be as high as practicable — the higher the better, within reason of course. In any event 78 inches from floor to ceiling should be the absolute minimum. (J) All openings must be equipped with fireproof shutters or doors which will close quickly and automatically in case of fire, except the vent flue, which must be unobstructed if there is a fan ; if of the open type then it must have a damper weighted to remain normally open, as will be hereinafter explained. (K) There must be a vent flue or flues leading preferably as nearly as possible directly to the open air above the roof. (L) All wires must be in conduit, and the conduit system must be thoroughly grounded. Fuses and switches should be in metal cabinets or cabinets built into the wall and covered with a metal facing, except in cases where a regular switchboard is employed. Conduits should, where possible, be built into the walls, and conduits leading to the projectors should be carried under the floor to a point immediately beneath the lamp house of each projector. (M) The projection room must contain nothing except those things necessary to the work of projection. (N) There should be proper tool racks, and a separate closet for each projectionist's clothes and tools ; also either in the projection room or immediately adjacent thereto should be a substantial work bench equipped with a substantial metal vise and a small anvil, which two last named may be combined in one. The switches and apparatus should be so arranged that they will be easy of access to the projectionist, both for manipulation and for repair. Making things unhandy for the projectionist is one of the most expensive things we know of. (P) It should contain only the most up-to-date apparatus, which same must be kept in the best possible condition. (Q) The projection room must have observation ports of such size that the projectionist may have a clear, unobstructed view of the entire screen, either when seated or standing in working position beside his projector. (R) The exterior of the room should be as inconspicuous as possible; that is to say, it should be decorated to harmonize with the rest of the theatre if it projects into or occupies a position in the main auditorium.