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Handbook of projection for theatre managers and motion picture projectionists ([1922])

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MANAGERS AND PROJECTIONISTS 873 Automatic Curtain Machine UNDER many conditions there can be no question but that a curtain before the screen adds largely to the "tone" of the performance. This is especially true in theatres where the screen is on a stage, or is located in a cove-like structure. VALLEN AUTOMATIC CURTAIN MACHINE.— There is now on the market a device known as the Vallen Automatic Curtain Machine, illustrated in Fig. 364. This machine is very simple. It consists of a motor connected to a cable drum by suitable gearing. The machine once started is automatic in its action, and its controlling switch may be located either Figure 364.