Abstract:
Lecteurs-enregistreurs. Le procédé d'organisation prioritaire d'informations enregistrées sur un support comportant n pistes ou secteurs dont au moins une est réservée et identifiée pour constituer une piste de première lecture obligatoire, consiste: à choisir au moins une piste prioritaire parmi les pistes d'enregistrement des informations, et à enregistrer, sur la piste de première lecture, l'identification de la ou des pistes prioritaires pour constituer une piste (Po) de stratégie de lecture de la carte selon un ordre de priorité déterminé. Application à la lecture d'informations enregistrés sur un support.
Abstract:
In a roller transport assembly of a film processor, respective cross-over rollers (1, 3, 5, 7) for transferring the exposed film from one tank (9) of processing solution to an adjacent tank (11) of processing solution are positioned above the free surfaces of the solutions during normal operation. However, the cross-over rollers are immersed in the solutions during non-operation of the processor to prevent the residue of solution on the roller surfaces from oxidizing to form a viscous or solid deposit.
Abstract:
The invention concerns a colour negative process wherein a photographic material comprising silver chloride or bromide and a DIR or DIAR coupler is processed in the presence of a polyester comprising intralinear thioether atoms.
Abstract:
A machine supplied with strip material and including a plurality of feed hoppers (21) arranged on a turret (20). When an external supply such as a large-capacity hopper (30) is used, an interface device (50) defines a guide (51) between the outlet slot of the external supply and the inlet slot of the machine. The interface device (50) is characterised in that at least one portion (22) of the guide is combined with the rotary turret and rotates therewith. This system is useful for supplying a photographic printer.
Abstract:
The invention concerns a method and a device for preparing a photographic emulsion. The device according to the invention comprises a plurality of external circulation loops (101-10N) disposed in parallel and in which the content of a vessel (100) containing at least a stirred gelatine solution is circulated, the loops having an identical configuration, means being provided for adding in an identical manner, to each of the loops, reagents required for the formation and/or growth of silver halide grains, the output of the circulation loops (101-10N) being recycled continuously in the vessel (100). Application to the preparation of photographic products.
Abstract:
The invention concerns a method and a device for extracting the halide ions from fixing or bleaching/fixing photographic solutions containing mainly thiosulphate as the fixing agent, bringing the solutions into contact with a nanofiltration module including at least two membranes of different types. The method enables the activity of the fixing or bleaching/fixing baths to be extended during the processing of photographic products.