Motion picture handbook; a guide for managers and operators of motion picture theatres ([c1916])

Record Details:

Title:
Motion picture handbook; a guide for managers and operators of motion picture theatres
Date:
[c1916]
Publisher:
New York City, The Moving Picture World
Volume:
Motion picture handbook; a guide for managers and operators of motion picture theatres
Leaf #:
000384
Language:
English
Collection:
Books
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Date Added:
July 19, 2022
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.

FOR MANAGERS AND OPERATORS 365 If a dissolver is to be used with one economy coil the two lamps must be wired in series. See "The Stereopticon." When using the economizer do not add rheostats to the circuit, or switches for regulating, or other devices. Schemes of this kind often cause a great deal of trouble, for which the instrument gets the blame. The economizer is a very sturdily built, rugged device, Which ought to last indefinitely if given reasonable care. It is well insulated and will not "bake out," owing to the extra heavy insulation between the core and winding, as well as between the layers. THE FORMOSTAT The formostat, which is widely used and well liked on the Pacific Coast, and somewhat known throughout the Middle West, is of the auto type of transformer. Its ratio is two to one for 110 volt current and 4 to 1 in the 220 volt type — that is Figure 176. to say, one ampere taken from 110 volt line becomes two on the secondary, while one ampere taken from the 220 volt line becomes four on the secondary. Its range of adjustment is from 30 to 65 amperes, and its construction is quite simple, there being two wires for the line and two for the lamp. These leads are marked with paper tags, when the formostat