Optical Radiation Corporation

John Nicholas Wilkinson

Tape is wound on edge on top of a turntable and is held in place against the table by equally spaced pressure pads that extend radially to restrict circumferential movement of the tape across the respective radius while permitting movement along the radius. An agitator is mounted adjacent the periphery of the turntable to contact the outer layer of the tape on each side of a pressure pad and moves in an arc while in contact with the tape toward the center of the table and in the direction of the turntable to aid in forming scallops in the tape between adjacent pressure pads. The length of tape applied to the table for each revolution thereof is controlled and is either one of two selected lengths or a length between the two selected lengths. The length is changed in response to the instantaneous length of tape between a feed mechanism and the point of application of the tape to the table. The take-off point is controlled to prevent scratching of the tape by causing a control signal to be developed when the tape is removed from outside a selected area and activating the movable roller of an accumulator in response to the control signal to move the take-off point back within the selected area.

Method and apparatus for winding an endless tape

A high intensity lamphouse and cooling means for use with photographic slide projectors. The module has a protective glass face, and air inlet and a second air outlet on opposite diametrical points between the lamp and the glass face. Also included are an additional opening near the base of the lamp providing a second air path through the module along the rear side of a reflector and the length of the lamp.

Growing community of inventors

Duarte, CA, United States of America

John Nicholas Wilkinson