Nation projector carbons (1935)

Record Details:

Title:
Nation projector carbons
Date:
1935
Publisher:
Toronto : Canadian National Carbon Company Ltd.
Volume:
Nation projector carbons
Leaf #:
00027
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:
May 30, 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.

The Carbon Arc Photographs of Incandescent Craters of D.C., Low Intensity Arc at 18, 20, 22 and 24 Amperes Figure 17 Projected Crater Image 18 Amperes Good arc. Almost maximum efficiency Figure 18 Projected Crater Image 20 Amperes Quiet, steady arc. Maximum efficiency Figure 19 Projected Crater Image 22 Amperes Arc becoming unstable. Car bons overloaded Figure 20 Projected Crater Image 24 Amperes Arc still more unstable — Frequent hissing. Very inefficient 23