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US 4,288,156 AGranted
Carrier for sheet of photographic paper
OwnerDavid H. Savageinventor
Life of this patent
Estimating the term…
Abstract
A carrier for a sheet of photographic paper or the like. The carrier including a plate smooth on one side for receiving a piece of wet paper which will adhere thereto through surface tension of the liquid, a lip at the lower edge of the plate to secure the leading edge of the paper as the carrier is immersed into a liquid bath, guides on each side of the plate both to align a sheet of paper and to space a plurality of carriers appropriately when stacked, and an irregular surface on the back of the plate to prevent paper from adhering thereto when wet.
Claims8
Apparatus for simultaneous processing of a plurality of sheets of material, said apparatus comprising:
- a plurality of carriers each comprising a generally rectangular plate having a face, a back and a lower edge, said face having a smooth surface for receiving said sheet, said smooth surface being sufficiently smooth that said sheet, when wetted, will adhere to said smooth surface, said back having an irregular surface which is sufficiently irregular that said sheet, when wetted, will not adhere to said irregular surface, a lip along the lower edge of said plate and extending from said smooth surface, said lip being so constructed and arranged that said sheet is urged against said lip and said lip supports said sheet on said smooth surface;
- a sleeve having a lower end and a upper end, said sleeve being sized and shaped to receive said plurality of carriers through an opening defined in said upper end of said sleeve, said lower end of said sleeve supporting said lower edge of said plate;
- a tank for containing a quantity of liquid, said tank being sized and shaped to receive said sleeve therein;
- and
- said lower end of said sleeve defining at least one opening, whereby said liquid in said tank is communicable with said sheet on said smooth surface when said sleeve is received in said tank.
2 more elements
A carrier for a sheet of material wherein said sheet is to be immersed into a liquid bath, said carrier comprising:
- a generally rectangular plate having a face with a smooth surface for receiving said sheet, a back with an irregular surface and a lower edge;
- a lip along the lower edge of said plate and extending from said smooth surface, said lip being so constructed and arranged that said sheet is urged against said lip and said lip supports said sheet on said smooth surface;
- a pair of guides fixed to said plate and extending perpendicular to said lip, said guides being located generally at opposite edges of said plate, said guides extending further from said smooth surface than said lip;
- said lip comprising a rectangular flange member having its longitudinal axis parallel to said lower edge of said plate and fixed to said smooth surface of said plate, said flange member being of such length as to define an opening at each end thereof between said flange member and each of said pair of guides;
- and
- said carrier being stackable with a plurality of like carriers, said smooth surface being sufficiently smooth that a sheet of material, when wetted, will adhere to said smooth surface, said irregular surface being sufficiently irregular that said sheet, when wetted, will not adhere to said irregular surface, and said lip is so sized that, when a second carrier is placed on said guides of said carrier, an elongate opening is defined between said lip and said second carrier.
3 more elements
A carrier for a sheet of material wherein said sheet is to be immersed into a liquid bath, said carrier comprising:
- a generally rectangular plate having a face, a back and a lower edge;
- said face having a smooth surface for receiving said sheet, said smooth surface being sufficiently smooth that said sheet, when wetted, will adhere to said smooth surface;
- said back having an irregular surface which is sufficiently irregular that said sheet, when wetted, will not adhere to said irregular surface;
- a lip along the lower edge of said plate and extending from said smooth surface, said lip being so constructed and arranged that said sheet is urged against said lip and said lip supports said sheet on said smooth surface;
- and
- a pair of guides fixed to said plate and extending perpendicular to said lip, said guides being located generally at opposite edges of said plate and said guides being engagable with said irregular surface of another of said carriers such that a plurality of said carriers are stackable.
3 more elements
A carrier for a sheet of material wherein said sheet is to be immersed into a liquid bath, said carrier comprising:
- a generally rectangular plate having a face, a back and a lower edge;
- said face having a smooth surface for receiving said sheet, said smooth surface being sufficiently smooth that said sheet, when wetted, will adhere to said smooth surface;
- said back having an irregular surface which is sufficiently irregular that said sheet, when wetted, will not adhere to said irregular surface;
- a lip along the lower edge of said plate and extending from said smooth surface, said lip being so constructed and arranged that said sheet is urged against said lip and said lip supports said sheet on said smooth surface;
- and
- a pair of guides fixed to said plate and extending perpendicular to said lip, said guides being located generally at opposite edges of said plate, whereby said carrier is stackable with a plurality of like carriers.
3 more elements
Dependencies are inferred from the claim text.