Photocopying – Contact printing – Light boxes
Patent
1981-11-04
1983-01-18
Hix, L. T.
Photocopying
Contact printing
Light boxes
355 27, 355 76, 226196, G03D 313, G03B 2752
Patent
active
043689698
ABSTRACT:
Film strip portions are attached spacedly on a carrier strap so as to project with substantially their entire bredth from said carrier strap, thus constituting together with the latter a composite unit suitable for being conveyed through a photographic development plant or the like. An apparatus comprising guiding means having two longitudinal guiding edges serves for laterally guiding this composite unit; one of these longitudinal guiding edges serves for guiding the longitudinal edge of the carrier strap opposite to said edge thereof from which the film strap portions project. In order to ensure an accurate lateral guidance independently of the total bredth of the composite unit which may vary due to inexact attachment of the film strip portions to the carrier strap or due to a bend in the film, the second longitudinal guiding edge is adapted to engage the first longitudinal edge of the carrier strap, by contact with the latter carrier strap edge underneath the film strip portions projecting therefrom.
REFERENCES:
patent: 4065042 (1977-12-01), Zieliwski
patent: 4264197 (1981-04-01), Pone et al.
patent: 4330191 (1982-05-01), Rawlings et al.
Gretag Aktiengesellschaft
Hix L. T,.
Mathews Alan
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