Polaroid Corporation

Bell + Howell Company

Eugene F Koppensteiner

Kenyon A Hapke

John P Bagby

George C Karalus

Frank L Weninger

Roger R Tomlinson

Jack W Hinshaw

A web supply and take-up system in which the web is transported from a supply reel to a take-up reel by means of a capstan and pressure roller. The take-up reel is driven to wind up the transported web. The improvement comprises a roller mounted for restricted rotation and placed between the supply and take-up reels in frictional engagement with the web. The roller supplies a counter force to the take-up reel drive force which assists the capstan and pressure roller in stopping undesired web movement.

Web supply and take-up system

A film handling apparatus blower system. The system includes a blower having a high-pressure, low-volume section and low-pressure, high-volume section. The high-pressure, low-volume section is a scroll-type centrifugal blower with a circular impeller of cellular material to minimize discernible noise, an axial intake port, and a high-pressure outlet port. The high-pressure outlet port is coupled to a duct which directs the output high-pressure air flow into a film cassette. The low-pressure, high volume section is also a scroll-type centrifugal blower having a bladed fan wheel, an axial intake port, and three low-pressure outlet ports. One low-pressure outlet port is coupled to a duct which directs output air flow to a location for flow adjacent the rearward portion of a projection lamp. A second low-pressure outlet port is coupled to a duct which directs output air flow to a location for flow adjacent the frontal portion of the projection lamp. A third low-pressure outlet port is coupled to a duct which directs output air flow across the AC drive motor of the film handling apparatus.

Film handling apparatus blower system

Growing community of inventors

Niles, IL, United States of America

Eugene F Koppensteiner