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

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 #:
00086
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:
March 21, 2024
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68 RICHARDSON'S BLUEBOOK OF PROJECTION copper may be ascertained by measuring its diameter in thousandths of an inch, multiplying the diameter by itself and comparing the result with Table No. 2, or by measuring with a B & S gauge and noting the mil diameter of the slot. Wire Gauge (23) In B & S gauges (shown in Fig. 15) the slots, not the round openings, are used for measuring wires. (24) Opposite each slot is the mil diameter of the wire / : CM Figure 15 that fits it. On the opposite side is the number of the wire. Wires should fit the proper slot without binding. Insulation (25) Insulation is designed to prevent direct contact between wires having opposite polarity, or their contact with " any object through which current may flow to opposite polarity, or their contact with any object providing an unintended path. Such electrical contact or path of conductivity may be supplied by direct contact between two wires of opposite polarity or by both coming into contact with a third wire or other object which