Nation projector carbons (1935)

Record Details:

Title:
Nation projector carbons
Date:
1935
Publisher:
Toronto : Canadian National Carbon Company Ltd.
Volume:
Nation projector carbons
Leaf #:
00083
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.

A.C, High Intensity Arc Figure 64 8 mm A.C. High Intensity Carbons: 80 Amperes, 2 8 to 29 Volts; (a Long Arc Length, Good Operating Conditions; •b Long Arc Length, Poor Operating Conditions Another arc condition that must be considered and, if encountered, corrected, is shown in Figure 65. The arc is of medium length, and would ordinarily have the normal appearance of Figure 62, but is disturbed by external forces, and has the tendency to snap back and forth between that position and the one shown in this figure, causing variation of the current and voltage, nicker, and uneven light distribution. This condition may be caused by too strong a draft in the lamp, or by an unbalanced magnetic effect due to a poor arrangement of the current leads; or by other means that would tend to distort the arc. If^we assume that the design of lamp house, the draft, and the arrangement of leads are such as to Figure 65 8 mm A.C. High Intensity Carbons: 80 Amperes. 26 Volts; Medium Arc Length, Arc Disturbed by External Forces 79