Richardson's handbook of projection (1927)

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
000496
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:
September 28, 2023
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944 HANDBOOK OF PROJECTION FOR BRENKERT SPOT AND FLOOD LAMPS As applies to motion picture theatres this equipment is for small spotlighting or flood-lighting, with or without static colors, at long or short distances. The apparatus is well made throughout. Figure 368 The spot and flood lamp shown in Fig. 368 accommodates a six inch diameter, twelve inch focal length lens. Any size carbon may be used, from }i Silver Tip negative to a one inch diameter cored positive. The arc lamp is well made and has all necessary adjustments in good form. The apparatus is supplied without rheostat if it is to take current from a motor generator, or with suitable capacity rheostat (40 to 100 amperes) if it is take current directly from the lines. The lamp is equipped to accommodate standard size color wheels, color box or color slides ; also with an iris shutter. Fig. 369 shows the "framing shutter" built into the lamphouse. It is operated by a suitable control located on the rear of the lamphouse. The purpose of this shutter is to permit the control of the top and bottom of the light beam, so that the projectionist may flood the full width of the stage without spilling light on the proscenium above the stage, or into the orchestra pit.