Motion picture projection : an elementary text book (1928)

Record Details:

Title:
Motion picture projection : an elementary text book
Date:
1928
Publisher:
New York : Technical Book Company
Volume:
Motion picture projection : an elementary text book
Leaf #:
000863
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Niles Essanay Silent Film Museum
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
September 21, 2023
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MOTION PICTURE PROJECTION 857 1 No. 64 Neg. Carbon clamp Screw 4 No. 65 Neg. Carriage Leads 3 No. 34 Feed rod insulation couplings 2 No. 00 Motor Brushes and Springs 1 Set of all lamp insulations. Order spare parts by number, numbers to be taken from our drawing No. 5000 which we furnish with each outfit. Tools — Don't try to tighten up hexagon nuts and screws with a pair of gas pliers. For a few cents you can obtain open end wrenches for this purpose. For all hexagon nuts and screws on our lamp the following wrenches will do : % in. opening and 9/16 in. opening. Do not run control on more than normal arc voltage for any length of time. It would overheat motor and coils. Do not run too long an arc. Boost your generator voltage to get the desired current or manipulate your rheostat. Study diagram on page 847 so that you may become familiar with action and setting of the third electrode. The third electrode controls the feed of the positive carbon and may, therefore, be called the "self-focusing feature of the lamp." Its seating affects the burning of the arc, so by learning just what is the best setting, you will save yourself much trouble. Third Electrode Consumption: The third electrode functions to feed the carbon by reason of the arc flame touching its tip and