Cine-film projection : a practical manual for users of all types of 16-mm. (1952)

Record Details:

Title:
Cine-film projection : a practical manual for users of all types of 16-mm.
Date:
1952
Publisher:
London : The Fountain Press
Volume:
Cine-film projection : a practical manual for users of all types of 16-mm.
Leaf #:
000131
Language:
English
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
March 21, 2024
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points, examine the motor and governor brushes and the governor contacts. (See Figs. 30 and 31). Ensure also that the voltage is of sufficient pressure and not fluctuating. THE TWO CONTACTS GHUB SCR.EW Fig. 30 THE AUTOMATIC 2-SPEED GOVERNOR Centrifugal force tends to throw outwards the arms marked A and B. When the contacts open the electrical circuit is broken and the motor thus prevented from speeding. Whichever aim has the strongest spring (A or B) is the one controlling sound-speed. The other is for silent speed. The contacts sometimes need adjusting or clearing. CONTACTS CONTACTS' y' FLAT FILE, 0 VER.Y THIN ! Fig 31 SHOWING METHOD OF CLEANING GOVERNOR CONTACTS 127