Inventors:
Bernard A. Schwartz - Ponca City OK
Tommy L. Tew - Ponca City OK
Marvin E. Janda - Ponca City OK
Assignee:
Conoco Inc. - Ponca City OK
International Classification:
G03B 1726, G03B 1314, B65H 1904
Abstract:
A film supply roll adapter includes a main support through which a rod having a flange on one end for receiving a film roll and another end attached to a cylindrical connector, an open section on the cylindrical connector is adapted to fit on a film roll holder in a laser plotter. The rod is configured within the main support to permit free axial rotation in order to transmit the drag force of the film roll holder directly to the flange with essentially no increase or decrease. The main support is arranged and may be fitted with O-rings to nest within a film roll housing and block all light from being incident on the film.