Richardson's handbook of projection (1930)

Record Details:

Title:
Richardson's handbook of projection
Date:
1930
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
00026
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:
August 01, 2024
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HANDBOOK OF PROJECTION FOR In what manner would you ascertain the correct voltage between the contact studs of the "C" battery? 1045 What does a high plate current indicate? 1046 How often would you inspect the "C" battery? 1046 How would you remedy a poor contact of the "C" battery with the grid circuit ? 1046 Adding Water Where is the correct upper water level of a storage battery? 1094 What sort of water is always safe for batteries?... 1095 Is any water except distilled safe for batteries?.... 1094 What should you do if you are uncertain as to the safety of the water from your local waterworks or from a well ? 1094 Why should the electrolyte never be permitted to drop below the tops of the plates ? 1095 What will be the result if the electrolyte is permitted to drop below the top of the plates ? 1095 Can a dead battery plate be restored to activity?. . . . 1095 When should water be added to a battery, and why? 1096 Is it permissible to use a battery immediately after charging ? 1096 What will happen if you use a battery within half an hour after charging has. been completed? 1096 Describe the correct manner of taking a hydrometer reading 1096 Is harm done if batteries are allowed to discharge too much before placing them on charge? 1097 Is it advisable for the projectionist to mix his own electrolyte? 1098 Describe the composition of electrolyte 1098 Battery Terminals Tell just what attention battery terminals should have 1098 The Exciting Lamp What purpose does the exciting lamp serve ? 1057 What is essential to good results with relation to the exciting lamp ? 1057 Is it absolutely essential to good results that the exciting lamp itself be in good condition? 1057 Is it essential to good results that the slit optical system be in correct adjustment, clean and the light from the slit correctly focused on the sound track? 1057 xxii