Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine (1914)

Record Details:

Title:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Date:
1914
Author:
Gage, Simon Henry, 1851-1944
Publisher:
Ithaca, N.Y. : Comstock Publishing Company
Volume:
Optic projection : principles, installation and use of the magic lantern, projection microscope, reflecting lantern, moving picture machine
Leaf #:
00091
Language:
English
Subjects:
Lantern projection, Motion picture projection
Format:
Books
Contributor:
University of California Libraries
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
Bibliography: p. 693-703
Date Added:
July 19, 2022
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76 SUMMARY FOR ALTERNATING CURRENT LANTERNS [Cn. II § 119. Summary of Chapter II: Do i. Connect both supply wires with the lamp; and remember that with the alternating current lamp it makes no difference which supply wire goes to the binding post of the upper and which to the post for the lower carbon (§ 106). 2. Insert a rheostat or other balancing device along one of the supply wires (fig. 3). 3. Insert the ammeter along one wire (fig. 2). 4 . Install a double-pole switch before the rheostat (fig. 3). 5. If the lantern table is on a concrete floor, use a board or insulating mat to stand on and thus avoid possibility of a shock if the metal part of the lantern is touched (§98, 689). 6. Feed the carbons nearer together every three to five minutes so that the lamp will not be noisy or go out or give double screen images. Do NOT i . Do not fail to connect both supply wires to the arc lamp. 2. Never try to use an arc lamp without a rheostat or balance. Do not connect the rheostat with both, but with a single wire. 3. Do not connect the ammeter with both supply wires, but with one. 4. Do not install a lantern without a double-pole, table switch which will cut off the current from all the apparatus on the lantern table (fig. 40) . 5. Do not stand directly on a moist concrete floor when operating a magic lantern with an alternating current lamp. 6. Do not let the lamp go too long before feeding up the carbons.