F. H. Richardson's bluebook of projection (1935)

Page scan 000107 from F. H. Richardson's bluebook of projection

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1935
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000107
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
{"Media History Digital Library","Jeff Joseph"}
Coordinator:
Media History Digital Library
Description:
Date Added:
August 01, 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.

ELECTRICAL CONDUCTORS 89 while the performance is in progress should have separate fuses, located, preferably, in the box office. The circuit they protect should join the main service circuit on the street side of the main switch and fuses, (c) Every separate circuit in the theatre must have its own fuses, (d) Fuses should be installed wherever a change in wire size occurs, (e) Main fuses in projection room carrying all current used therein, also fuses for each circuit in the projection room, (f ) Fuses for each individual emergency light circuit, particularly as applied to exit lights. Fuse Markings (91) Cartridge and plug fuses are marked with both their voltage and amperage capacity. Markings are usually on the paper barrel of the cartridge fuses and stamped into some metallic part of plug fuses. Markings of link fuses should be on one of the copper contacts. Reject all unmarked fuses. TO SUPPLY ^^ 1 nicr ^^ t»r-* FUSE FUSE a ^rra FUSE I DP.PT FU5ED SWITCH TO ARG Figure 27 Testing Fuses (92) Fuses may be tested by a simple device like that illustrated in Fig. 28, in which D is a block to hold a single ferrule fuse, C a lamp receptacle and an ordinary incandescent lamp of proper voltage and convenient candle power. E is a plug fuse receptacle. A and B are any two nearby live circuit wires. If either a good cartridge or good plug fuse is inserted, the lamp will light up.