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

Page scan 000118 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 #:
000118
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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100 RICHARDSON'S BLUEBOOK OF PROJECTION 156. How closely must these distances be maintained : 157. What types of glass are best for mirrors? 158. Name two points essential to efficient operation of mirrors. z J 159. How often should mirrors be wiped off? 160. What cleaning fluid is best for mirrors? 161. How should mirrors be cleaned when a flaming high intensity arc is used ? \ j^^iA 162. How often should the mirrors be removed for washing and how should they be washed? 163. What should be done when the silver tarnishes? 164. What should be done if the mirror is pitted or scratched? 165. Is it profitable to continue to use a scratched or pitted mirror ■