Society of Motion Picture Engineers : incorporation and by-laws (1927)

Page scan 000716 from Society of Motion Picture Engineers : incorporation and by-laws

Record Details:

Title:
Society of Motion Picture Engineers : incorporation and by-laws
Date:
1927
Publisher:
New York : Society of Motion Picture Engineers
Volume:
Transactions of the Society of Motion Picture Engineers (1927)
Leaf #:
000716
Language:
English
Subjects:
motion pictures, Cinematography -- Periodicals
Collection:
Technical Journals
Format:
Periodicals
Contributor:
Library of Congress, MBRS, Moving Image Section
Sponsor:
Library of Congress, Motion Picture, Broadcasting and Recorded Sound Division
Coordinator:
Media History Digital Library
Description:
Preceeded by an unnumbered issue published in 1916 called: Incorporation and by-laws
Date Added:
September 12, 2024
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700 Transactions of S.M.P.E., Vol XI, No. 32, 1927 should always be rendered distinctly alkaline before the addition of sulphide. The slightest trace of acid would hberate hydrogen sulphide, which would be unpleasant as well as dangerous to metal work and to undeveloped film. A convenient supply of alkali was found in spent developer. Sodium Sulfide Desilvered Hypo Sludge Filter Fig. 1. General Diagram of Silver Recovery Apparatus. The device for measuring the hypo follows the principle suggested in a previous paper. ^ A doubled-knee syphon blown in two parts from Pyrex glass is mounted by means of a rubber bung through a hole in an earthenware crock and allowed to hang over a second crock also provided with a drainage hole. Both crocks are mounted on the top of a cylindrical wooden tank of some three hundred gallons capacity. Inside the tank is hung a funnel shaped tube conveniently made from sheet celluloid, down which solutions may run from the