Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000289
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:
March 28, 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.

MANAGERS AND PROJECTIONISTS 1213 which, together with a uniquely designed first stage amplification, gives an amplitude of volume claimed to be greater than is supplied by average two-stage amplifying units of this variety. Like the Motio-Tone, this equipment is designed to withstand an overload of from fifty (50) to seventy-five (75) per cent for a reasonable length of time. This equipment is supplied in two classes, namely Class A and Class B. Class A has two 11-foot air column horns, built very compactly. It is designed for use where space for horn installation is very limited. The horns have a bell twenty (20) by twentyfour (24) inches. The air column is, as before set forth, eleven feet in length. This unit has capacity for auditoriums seating from 600 to 800, with reserve volume available. Class B installation has two much larger horns, the bells (openings) being 38x40 inches. The air column is only eight (8) feet nine (9) inches, but the cubical content of the air column is nevertheless much greater than that of the Class A installation horns. The reproducers are very similar to those used by Vitaphone. INSTALLATION.— Both models (Motio-Tone and Versatile) have everything plainly marked and blueprints are supplied for installation.