Abstract: A process camera including a lens or lens system movably mounted for focussing light with respect to a glass sheet serving as an image plane and a vacuum-operated frame back provided with a flexible blanket having a surface relief configuration on its contacting surface for holding by contact therewith a photographic material against the said glass sheet, characterized in that the edges of the glass sheet are provided with a material absorbing light to which the glass sheet is transparent.

Abstract: An antistatic layer applied to the back of the photographic material contains (A) a mixture of sodium magnesium silicate and the sodium salt of polystyrene sulphonic acid and (B) a succinic acid semi-ester compound. The antistatic layer is distinguished by high abrasion resistance and its good qualities as writing and printing surface.

Abstract: Colored, reflection-viewed images having improved stability to light, heat and moisture and improved storage stability while retaining the original color character thereof are produced using color photographic recording materials containing, on a light-reflecting layer support, a red-sensitive, a green-sensitive and a blue-sensitive silver halide emulsion layer, each with spectrally associated color coupler, the yellow coupler being a 2-equivalent yellow coupler derived from pivaloyl acetanilide, the magenta coupler a 3-anilinopyrazolone coupler and the cyan coupler a coupler corresponding to the following general formula (I): ##STR1## wherein R.sup.1 represents H or halogen;R.sup.2 represents alkyl having at least 2 carbon atoms;R.sup.3 represents H or alkyl having up to 5 carbon atoms;R.sup.4 represents acyl; andX.sup.1 represents H or a group releasable in the process of color coupling.

Abstract: Dyes corresponding to formula I may be released imagewise from dye releasers in the dye diffusion transfer process. The dyes obtained are lightfast cyan dyes with improved spectral properties and reduced sensitivity to reducing agents ##STR1## the meanings of symbols given in formula I (A, A', G, R.sup.1, R.sup.2, R.sup.3 and R.sup.4) are indicated in the description.

Abstract: Dyes corresponding to general formula (I) are released imagewise from corresponding dye-releasers in the dye diffusion transfer process. They react with nickel ions to form lightfast, cyan dye-metal complexes having advantageous spectral properties: ##STR1## wherein Q represents the group required for completing an optionally substituted phenyl or naphthyl group;X represents --S--, --SO.sub.2 --, --SO.sub.2 --NR.degree.-- or --SO.sub.2 --O--;R.degree. represents H or alkyl; andR.sup.1 represents an aliphatic, araliphatic or a carbocyclic or heterocyclic aromatic group or, when X represents --SO.sub.2 --NR.degree.--, R.sup.1 represents hydrogen.

Abstract: Yellow DIR couplers corresponding to formula I below are capable of producing remarkably powerful inhibitory effects on remote layers while their action on the layer containing them is comparatively slight: ##STR1## In the above formula, R.sup.1 represents straight-chained or branched alkyl, optionally substituted aryl or --NR.sup.5 R.sup.6,R.sup.2, R.sup.5 represent H or alkyl with 1 or 2 carbon atoms,R.sup.3, R.sup.6 represent alkyl with 1 to 18 carbon atoms or optionally substituted aryl,R.sup.4 represents alkyl with 5 to 12 carbon atoms, andFu represents a substituted or unsubstituted furyl group.

Abstract: An apparatus for loading and unloading a film cassette, in particular an X-ray film cassette, has a housing defining a compartment and includes a front face provided with an opening to the compartment through which opening the cassette is introduced. For transporting the cassette from the opening into the compartment, and for discharging the cassette, the apparatus is provided with at least one carrier roller extending parallel to the opening of the housing. The carrier roller transports the cassette to an unlocking station in which the cassette is unlocked. For removing the exposed film and loading of a new film into the cassette, second transport means are provided which move the cassette from the unlocking station into a removing station and subsequently into a loading station.

Abstract: A developing device for a photographic layer carrier, particularly a film, includes two rotary transport roller pairs transporting a film in a horizontal direction over a bath containing a processing liquid. Two liquid-admitting chambers are positioned opposite to each other in spaced relationship to form a processing space through which the film is transported. Each chamber is subdivided into two portions by a comb-like partition which loosens vortexes generated in one chamber portion upon pumping the liquid thereinto and ensures a uniform distribution of the liquid discharged into the processing space through a slot provided in the second chamber portion.

Abstract: This invention relates to a process for the production of a magnetic recording material having at least one layer of magnetic oxidic and/or metallic needle shaped pigments with dimensional anisotropy and/or some other type of magnetic anisotropy, e.g. crystalline, dielectric or magnetic field induced anisotropy, which process may be used to produce a layer having perpendicular anisotropy or a layer which passes from an initial perpendicular anisotropy to an isotropic distribution of the preferential magnetic axes of the pigments. According to the present process, the magnetic dispersion, after having been applied to the layer support, is subjected to an external magnetic field while still in the state of a liquid suspension, with the result that the pigments move with the preferential axis thereof into the perpendicular axis of the layer, and the pigments are subsequently fixed by drying.

Abstract: Compounds corresponding to the following formula(MS--Het--(Ar).sub.m --NR.sup.1 --CO) .sub.n R.sup.2which are contained in a color-photographic recording material in a silver-free layer between a layer containing colloidal silver and a silver halide emulsion layer, improve the storage stability of the material.

Abstract: Method of transferring a liquid xerographic toner image between two elements one of which is a flexible sheet advancing along a straight line path and the other is advancing synchronously along an arcuate path around a fixed axis which path at one point is in close spaced proximity to the straight line path. The flexible element is supported by its margins alone and its unsupported region is subjected to a biasing force to deflect the same toward the other element and bring a liquid toner image, which is previously deposited, e.g., by developing an electrostatic charge pattern with liquid toner, on one of the mutually facing surfaces of the two elements, into direct contact with both element surfaces maintaining such surfaces apart. During the passage of the two elements through the point of close proximity an electrical potential gradient is applied across the elements during such passage to transfer the liquid toner from the surface on which it is deposited to the other element surface.

Abstract: A photographic roller copier apparatus for photographing original copies having different side lengths onto a ribbon form copier material, the ribbon width corresponding to a desired copy size. The original copies have various formats and are provided in ribbon form, one format lying lengthwise in the ribbon direction and the other format perpendicular thereto. The apparatus consisting of a lens having an adjustable focal length so that from both formats of originals it is possible to make copies that are equal in size and that fill the width of the copier material ribbon, and that in the area of a picture gate the ribbon of originals is provided in a plane parallel to the lens axis. Between the picture gate end of the lens is provided a deflecting part which deflects the beams of light from the picture gate through 90.degree. into a lens. The picture gate with the ribbon of originals, the illuminating apparatus and corresponding film rollers is rotatable around the lens axis through 90.degree.

Abstract: In a feedpipe of a container for refilling a photographic developing tank with a developer radial discharge holes are provided in the region of a valve mounted at the lower end of the feedpipe extended outwardly of the container. The developer liquid is discharged into the valve and then into the tank through these radial holes. To prevent overflowing of the liquid through these holes meshed elements are inserted into the radial holes.

Abstract: A recording apparatus for linewise recording information on a moving photoreceptor, comprising a recording head with two staggered rows of pointlike radiation sources, wherein a shortcoming of prior art devices, namely stepwise deformation of a recorded line, caused by an incorrect registering of the even and uneven data dots, as a consequence of speed fluctuations of the photoreceptor upon recording, is overcome by controlling the recording of the data signals as a function of a signal from a speed sensor of the photoreceptor.

Abstract: A process for the multiple coating of webs which are continuously moving past a coating point, using coating apparatus according to the bead coating process is carried out such that any number of comparatively high viscosity layers is arranged above an accelerating layer which lies below the layers and has a viscosity range of from 1 to 20 mPas and a layer thickness of from 2 to 30 .mu.m. A very small gap width of from 100 to 400 .mu.m is selected between the sliding surface coating head and the web to be coated and only a low reduced pressure is applied under the coating head. By this process, coating rates of 400 m/min and more may be achieved with a good coating quality.

Abstract: Improved photographic recording materials containing at least one silver halide emulsion layer with comparatively high sensitivity and at least one silver halide emulsion layer with comparatively low sensitivity. Color couplers and DIR compounds of differing reactivities are associated with these layers.

Abstract: In a recording apparatus comprising a recording head with a multiplicity of individually addressable and energizable point-like radiation sources arranged in staggered parallel rows for irradiating points across a moving photoreceptor, the driver circuits for the different rows of radiation sources are provided by identical chips. Each chip incorporates delay means capable of holding data-bit signals for a delay period before the signals are transmitted for energizing the associated radiation sources but is formed so that the delay means can be rendered inoperative by selecting one or other of different mode control voltage input points. The control chips for one row of the radiation sources are set in the delay-operative mode to compensate for the distance between the two rows of sources.

Abstract: A process for the multiple coating of objects or webs which are continuously moving past a coating point, using coating apparatus according to the curtain coating process. This process is carried out such that any number of comparatively high viscosity layers is embedded between an accelerating layer which is positioned below the layers and has a viscosity range of from 1 to 20 mPas and a layer thickness of from 2 to 30 .mu.m, and a spreading layer which is positioned above the comparatively high viscosity layers and has a viscosity range of from 1 to 10 mPas and a layer thickness of from 5 to 20 .mu.m. By the curtain coating process, coating rates of 400 m/min and more may be achieved with a good coating quality.

Abstract: A forgery-proof information carrier comprises an insert (1) having a passport photo (7), data about the owner and other security features, and plastics films (5, 6) which are joined in an undetachable manner to the insert (1), and is distinguished in that a metal mask (2) is provided as an edge protection at least in the region of the edges of the information carrier. In a further development to increase the security against forgeries, the metal mask (2) may be inwardly provided with irregular edges (3) or with openings (4).

Abstract: An arrangement for removing sheets, especially X-ray film sheets, from a container in the interior of which such sheets are arranged next to one another in a stack, wherein at least some of the sheets are so dimensioned as to be movable toward and away from an abutment surface, includes at least one roller which engages at least the next sheet to be removed during a moving operation and moves the next sheet into abutment with the abutment surface. A plurality of such rollers may be arranged at the bottom region of the container such that their axes of rotation extend normal to the edges of the sheets which rest on the rollers in an upright position of the container in which the removal operation is performed.