Chase holding mechanism for camera/projector machines

摘要

A three point suspension system and clamping mechanism for holding the face of a chase (28) perpendicular to the optical axis (36) of a multiple imaging camera/projector (10). The chase (28) is equipped with pins (64-72) which project from it and are located to bear against three pegs (76) which project from the chase carrier (26) of the machine (10) to provide three point contact between the chase (28) and chase carrier (26). The tips (64a) of the pins (64-72) are adjusted to define a plane that is parallel to the plane of the glass panel (42) on the chase which receives the flat copy to be photorepro­duced. The ends (76) of the pegs (74) lie in a common plane which is perpendicular to the optical axis (36) so that the glass panel (42) of the chase (28) is also maintained normal to the optical axis (36). The clamping mechanism is operated by pneumatic cylinders (82) and allows the chase (28) to be quickly replaced or rotated to a different orientation.