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 #:
000859
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.

MOTION PICTURE PROJECTION 853 connection on this lead will cause the negative spring to overheat and lose its tension. Important : Every time that you retrim the negative, pay attention to the following: I. See that no copper coating from the carbon has lodged in the "V" of the negative guide head to hold the carbon out. Any scale in this "V" can be chipped out with the point of the screw driver. II. Be sure that the carbon clamp grips the carbon tightly. See that there is spring tension enough on the carbon holder to hold the negative carbon firmly into the "V." III. After tightening up on the negative carbon, feed it up by means of the hand feed-crank until its tip nearly touches the end of the positive carbon. If it is properly in line, it will point drectly at the center or core of the positive. If it does not, the cap screws holding the negative guide head must be loosened slightly and the head twisted over until carbons are exactly in line. You cannot get results with the carbons out of line. FOR LUBRICATION on lamp use Dixon's No. 691 Cycle Chain Grease. Important : Do not use oil on any part of the burner (any part of the lamp located inside lamp house), because, on account of the heat it will cake and cause moving parts to bind. Use only graphite grease, or Dixon's Graphite Stick Compound, and it is preferable to put these lubricants on when the lamp is hot so that they will melt and run into the bearings.