Servicing projection equipment (1932)

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000161
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.

SWITCHES 145 SWITCHES 1. Switches Heat, are Warm or Hot to Touch (a) — Contact is not perfect: — either corrosion has set in or dirt has gotten into the contact jaws, or the connections at the binding posts are badly corroded or loose. Any of these will cause a heavy resistance to the current ; these conditions result in heat, and heat engenders danger with switches. An overheated switch may break down at a burned contact and may become impossible to handle; sufficient heat may even be set up to weaken or destroy the insulation and loosen a live wire from its contact, thus creating as dangerous a condition as heavily overloaded wiring. Avoid this trouble by keeping all contacts clean and tight, and by cleaning out even a minimum of collected dirt.