F. H. Richardson's bluebook of projection (1942)

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1942
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000316
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
July 11, 2024
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.

300 RICHARDSON'S BLUEBOOK OF PROJECTION mittent sprocket is at rest plus the time it is in movement is termed the "speed of intermittent movement." In present day "90 degree movements" the intermittent sprocket is at rest, with the film motionless over the aperture, three times as long as it is in motion. Figure 136 A quarter segment of a circle is 90 degrees. (A circle is divided into 360 degrees.) Pin D, in Fig. 134, is in engagement with the star slot and therefore moves the intermittent sprocket through exactly 90 degrees, but is disengaged for the rest of the circle or (360°-90°) 270 degrees.