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 #:
000103
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
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ELECTRICAL CONDUCTORS 85 Plug Fuses (78) Plug fuses such as are shown in Fig. 25 consisl of a porcelain base having a brass collar on which is a thread that will fit into any standard plug fuse socket. The brass thread of B, Fig. _?5, is attached to one binding post and the contact at center of bottom of B to the other. If one wire of a circuit is cut and the ends attached to the binding posts of the socket shown at B, Fig, _\:. and the brass thread and center contacts of the plug is 0*7/?/r/r*. /^-9C *£-o wrr**, a*ot or/*m-o. /V*<// /rr//vc Figure 24 joined with a fuse wire and the plug screwed into the socket, the circuit wire will thus be made complete again. In practice the fuse wire of a plug fuse is attached between the center contact and the thread. The plug is then covered with a protective cap in which is a mica "window" through which the fuse wire may be examined. In Fig. 25, at A we have two views of a plug fuse. C is the plug with brass-mica cap remD is a special form of plug Fuse to be used on amperages up to 60, the regular plug fuse having a maximum capacity of 35 amperes. Plug fuses may be used for any sort of work up to the limit of their capacity.