Method of automatically framing a reversal film provided with ed

Details Method of automatically framing a reversal film provided with ed Method of automatically framing a reversal film provided with ed

1979-12-05

1982-08-24

Gilreath, Stanley N.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Reciprocating or oscillating claw or finger

83 58, 83278, B65H 1740

Patent

active

043457070

ABSTRACT:
In a method and apparatus for automatically mounting reversal film in slide frames, the edge of the film being notched at predetermined intervals, the notches are utilized for feeding the film through the framing apparatus which comprises a pivoted notch-engaging pawl on a reciprocatable carriage and two electrically parallel switches acting independently on a clutch of driving means for the carriage. One of the switches is mounted on the carriage and is operable by the pawl and the other is operable by a rotary cam plate.

REFERENCES:
patent: Re26283 (1967-10-01), Gerlach
patent: 929161 (1909-07-01), Oehring
patent: 2168043 (1939-08-01), O'Grady
patent: 2301054 (1942-11-01), Laing
patent: 2325335 (1943-07-01), Meyers
patent: 2359140 (1944-09-01), Meitner
patent: 2425994 (1947-08-01), Chilton
patent: 3469754 (1969-09-01), Parker
patent: 3765583 (1973-10-01), Mathes
patent: 3874576 (1975-04-01), Vines

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