. Transactions of the Society of Motion Picture Engineers (1921). of a lunch boxor a bag for a mans bathing suit. The Universal Camera sold by Burke & James now has anautomatic shutter dissolve built into the camera and a turret attach-ment for carrying extra lenses is now available. The American Motion Picture Machine Company of LongIsland City have recently brought out a turret for four lenses whichthey attach to the Pathe professional camera. The Bell & Howell Camera Company announce two outstanding-new features which may be attached to any of the Bell & HowellCameras. These features are th
. Transactions of the Society of Motion Picture Engineers (1921). of a lunch boxor a bag for a mans bathing suit. The Universal Camera sold by Burke & James now has anautomatic shutter dissolve built into the camera and a turret attach-ment for carrying extra lenses is now available. The American Motion Picture Machine Company of LongIsland City have recently brought out a turret for four lenses whichthey attach to the Pathe professional camera. The Bell & Howell Camera Company announce two outstanding-new features which may be attached to any of the Bell & HowellCameras. These features are the Cinemotor or electric drive andthe Ultraspeed attachment. The Ultraspeed attachment requires some changes in the camerawhich make it necessary to send the camera to the factory so that 78 this appliance may be fitted. This is a new shuttle and a step upgear for the crank by the use of which the speed of taking may beincreased eight times or more. After being once installed the newultraspeed device is interchangeable with the old pilot pin shuttle. Bell & Howell Camera fitted with Mollis automatic Irisand double expansure attachment. and either ordinary speed pictures or ultraspeed can be made withthe same camera. The Cinemotor or electric camera driving device consists of acompact aluminum housing enclosing a reversible electric motor andcontrolling devices. It is equipped with a combination switch making possible theuse of either alternating or direct current of 110 volts for operation,which also controls the direction of rotation and for stopping andstarting. Positive variable speeds are obtained by the manipulationof a control knob carrying a pointer which tiaverses a calibrateddial indicating pictures exposed per second, ranging from 1 to 32and upward. Limit stops provide quick adjustment or shifting topredetermined working speeds, while camera is in motion. A clutchis provided for moving the motor shaft into or out of engagementwith the camera shutter shaft without neces
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