Photocopying – Projection printing and copying cameras – Detailed holder for photosensitive paper
Patent
1990-06-21
1991-09-17
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
Detailed holder for photosensitive paper
354275, 242 71, 242 711, 206414, G03B 2758
Patent
active
050499289
ABSTRACT:
A spooled photosensitive web cartridge and a spooled photosensitive web cassette are disclosed.
The web cartridge includes a cylindrical core, a pair of end caps, a length of photosensitive material, and a leader sheet. The end caps are disposed coaxially on the core at an axial distance between each other. The photosensitive material is wound onto the core to form a cylindrical web between the end caps. The leader sheet is secured to the leading end of the photosensitive material, and includes an opaque wider portion circumferentially disposed entirely around the web to form a tubular enclosure. The wider portion of the leader sheet has a width greater than the axial distance between the end caps. The opposite side edges of the wider portion are detachably connected respectively to the end caps so as to mechanically retain the tubular enclosure on the end caps as well as to provide a light-tight seal between the tubular enclosure and the end caps.
The web cassette utilizes the web cartridge and further includes a take-up spool and a cassette frame. Both the web cartridge and the take-up spool are held by the frame for rotational movement about their respective axes.
REFERENCES:
patent: 4733777 (1988-03-01), Van Geyte et al.
patent: 4861695 (1989-08-01), Higashiyama
patent: 4864362 (1989-09-01), Hayashi
Boshinski Thomas A.
Hayes Monroe H.
The Mead Corporation
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