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Sept., 1935] APPARATUS SYMPOSIUM 275
A NEW SOUND READER AND FRAME VIEWER
I. SERRURIER*
A new machine added to the line of film editing equipment manufactured by this company consists of two parts, the machine head, Model SR V, and the combined amplifier and speaker, Model UR. The machine head (Fig. 5) consists of two curved film slides with a guide roller at each end of each slide. The film slide for the sound-film is equipped with an adjustable rail and adjustable guide rollers so that either standard 35-mm. film or split film may be used. An exciter lamp unit, the same as used on all Moviola sound reproducing equipment, is supported above the small opening in the slide under the sound-track, and a caesium type of photoelectric cell is located in the compartment provided for it beneath this slide. The slide for the picture film has a frame-size aperture illuminated through an opal glass pane by a small electric lamp. A set of viewing lenses, the same as those used in all Moviola film viewing machines, is arranged over this illuminated aperture and can be hinged out of the way when threading the film over the slide and under the guide rollers.
In Fig. 6 the machine head is shown with the viewing lenses swung away for threading. Two small switches are provided in front of the machine head, one for the exciter lamp and one for the viewing lamp. The machine head is connected to the amplifier and speaker cabinet by means of two shielded cables which may be readily detached, one for the 6-volt current supply to the exciter lamp and one for the photoelectric cell connection.
The amplifier and speaker cabinet (Fig. 7) contain a 5-tube amplifier, a dynamic speaker, and a transformer to supply the current for the exciter and viewing lamps. These are the same as used in connection with all Moviola film editing equipment. A knob for operating the volume control and a combined switch and red pilot light for the power supply to the amplifier are located on the front of the amplifier cabinet.
To operate the sound reader it should be placed between two rewinders, preferably double rewinders, and the film or films should be drawn through it by means of the rewinders. It may be used to advantage in connection with a twosprocket synchronizing machine, such as shown in Fig. 7, and should be useful in the cutting room for quickly locating words or sound effects to be added or eliminated.
A JERK-ABSORBING DEVICE FOR FILM VIEWING AND SOUND REPRODUCING MACHINES WITH FILM ON REELS
Moviola film editing machines are started, stopped, and reversed quite frequently, and the adjustment of the friction devices upon the take-up spindles is often neglected, with the result that some film may become unwound from a reel. When the machine is started and the slack is taken up the film must suddenly start the reel in motion, and a jerk results. To eliminate damaging the film from this cause, rollers have been added upon hinged and spring-held arms in such
*Moviola Co., Hollywood, Calif.