Motion picture projection : an elementary text book (1928)

Record Details:

Title:
Motion picture projection : an elementary text book
Date:
1928
Publisher:
New York : Technical Book Company
Volume:
Motion picture projection : an elementary text book
Leaf #:
000706
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
September 21, 2023
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.

700 MOTION PICTURE PROJECTION to start to rotate. When the armature has attained nearly full speed, the starting arm should be moved quickly over to the last segment where it is held by a latch controlled by a relay magnet. If the voltage fails, the relay magnet will release the latch, allowing the starting arm to automati A. C. TO D. C. COMPENSARCS Fig. 293 Connections of Motor End of A. C. to D. C. Compensarc When Compensator Is Used on Two-Phase Circuits cally return to the "off" position stopping the motor. The arm of the starting box should never be left in starting position longer than one minute, usually much less time will suffice. When the power companies do not require the use of starting compensators in connection with the two and