Method and apparatus for cleaning an endless strip of film, tape

Details Method and apparatus for cleaning an endless strip of film, tape Method and apparatus for cleaning an endless strip of film, tape

1979-01-15

1980-07-08

Fisher, Richard V.

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

15 21B, 15100, 134122P, 352130, 360137, B08B 102

Patent

active

042115809

ABSTRACT:
Method and apparatus are disclosed for cleaning endless strips of motion picture film, magnetic tape, magnetic film, or the like contained in a reel formed on a rotatable hub housed in a casing, wherein cleaning is accomplished without opening the casing or removing the reel of film or magnetic tape therefrom. Successive portions of the film or tape stored in the reel are withdrawn as a continuous strip from the center of the reel. The strip is then continuously fed through an access opening in said casing to form a loop outside of the casing, wherein the strip is subjected to a cleaning means. The strip from the loop is introduced back through said opening to guide means within said casing. The guide means directs the strip of film or tape past an operational opening in the casing which is separate and apart from the access opening. The strip is then continuously returned to the reel. Means are provided in combination with the rotatable hub on which the reel is formed for continuously advancing the strip of film or tape in its movement from the reel, through the loop on the outside of the casing, back to the guide means within the casing, and then past the operational opening and back to the reel.

REFERENCES:
patent: 1273928 (1918-07-01), Rosenfeld
patent: 1927284 (1933-09-01), Howell
patent: 3640293 (1972-02-01), Freedman
patent: 3872510 (1975-03-01), Childress, Jr. et al.
patent: 3961375 (1976-06-01), Mika et al.
patent: 4004314 (1977-01-01), Post et al.

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