Abstract: A cassette or an analogous supports for sheet-like X-ray films has a bottom wall and a top wall which latter is connected to the bottom wall by a hinge. One of the walls carries a magnetic plate which is overlapped by a first intensifier screen for the X-ray film. The other wall carries a flat flexible receptacle for a ferromagnetic layer therewithin, and the receptacle is overlapped by a second intensifier screen. When a film is inserted between the two screens, the cassette is closed whereby the magnetic layer attracts the ferromagnetic layer with the result that the two screens are biased against the respective sides of the film therebetween. The second screen may constitute an integral part of the receptacle which latter consists of a material, such as paper or synthetic plastic, that is permeable to X-rays.

Abstract: A laminate for conversion of X-rays into radiation that darkens X-ray films has a flexible plate which is disposed between a fluorescent layer and a ferromagnetic layer. The latter enables the plate and the fluorescent layer to bear against an X-ray film in a cassette or at an exposure station for X-ray films by being attracted to a plate-like permanent magnet. The ferromagnetic layer is permanently bonded to the respective side of the flexible plate or is simply confined between the plate and an outer layer which is permeable to X-rays and whose marginal portions extend beyond the ferromagnetic layer and are bonded to the respective marginal portions of the plate. Alternatively, the ferromagnetic layer can be inserted into a sealable envelope or bag which is bonded to the respective side of the plate, namely, to that side of the plate which faces away from the fluorescent layer.

Abstract: An X-ray film cassette has body and cover parts movable relative to one another between open and closed positions and provided with locking elements, magnetic and counter plates associated with these parts and attractable to one another, at least one reinforcing foil arranged to be brought together with a film between the magnetic and counter plates, wherein the reinforcing foil has a surface arranged to face toward the film and being rough with a roughness of between 10 and 60 microns.

Abstract: A method for protecting crops from injury caused by the application of herbicides and fungicides has been discovered, the method comprising applying to the crops in combination with the pesticide a phytotoxicity reducing amount of a water-insoluble, non-sulfonated alkali lignin. A water-insoluble, non-sulfonated alkali lignin based spray tank mix additive is provided which, when mixed with the pesticide prior to application, reduces the phytotoxic effect of the pesticide.

Abstract: An x-ray film cassette includes two cassette parts which are connected at one side by a hinge and which are cylindrically curved as considered in a plane normal to the hinge. The cassette part which constitutes the bottom carries a foil of ferromagnetic material floatingly supported on an elastic strip-sloped peripheral frame, and an intensifying shield supported on this foil, while the other cassette part which constitutes the top carries a magnetic plate supported on elongated projections of the cassette wall and supporting another intensifying shield. In the closed position of the cassette, the magnetic plate attracts the ferromagnetic foil to thereby eliminate air inclusions between the intensifying shields and the x-ray film interposed therebetween.

Abstract: A reinforced flexible x-ray film cassette includes two cassette parts which are connected at one side by a hinge and which are cylindrically curved as considered in a plane normal to the hinge. Two circumferentially extending ribs are provided on one of the cassette parts and a single circumferentially extending rib is provided on the other cassette part, the single rib being received between the two ribs in the closed position of the cassette to form a light barrier therewith and being in force-transmitting engagement therewith to reinforce the cassette against bending or twisting. The cassette part which constitutes the bottom includes a foil of ferromagnetic material floatingly supported on an elastic peripheral strip and an intensifying shield supported on this foil. The cassette part which constitutes the top includes a magnetic plate supported on elongated projections of the cassette wall and supporting another intensifying shield.

Abstract: A cassette for X-ray film has a first chamber for the film and a relatively narrow elongated second chamber for the major part of an elongated data-carrying card a portion of which extends outwardly through a window in the cover of the container. The two chambers are separated from each other by a partition which has a sealable aperture in register with the window.

Abstract: A film cassette, particularly an X-ray film cassette, includes a housing which bounds a compartment for accommodating a film and having an opening for exposing an image on a predetermined portion of the film in the compartment. The opening is light-tightly closed by a closure which is displaceable between its closed and open positions and which is latched in its closed position by a latching member which is pivotally mounted on the closure and engages the housing at one of its ends. The other end of the rocker is accessible to an actuating pin of an exposing device through an access opening in the closure, so that the actuating pin can pivot the rocker into its releasing position in which the closure is free to move towards its open position, and displace the closure between its closed an open positions. When the closure is open, the exposing device exposes data onto a portion of the film in the cassette which is aligned with the opening.

Abstract: A synchronizing ring (1) adapted for use in a gear clutch where the ring includes an annular body (2) formed of a chip-free material, such as a metallic body of forged or sintered material or a plastic, and having a generally conical friction surface (6) with a fibrous friction lining (3) cemented thereto. The ring has one or more generally axially extending grooves (5) formed in the friction material to provide for draining of oil during operation of the ring.

Abstract: An arrangement for opening and closing a film sheet cassette having a bottom element and a top element movable relative to the bottom element between open and closed positions, includes a sliding element guided on the bottom element and movable relative to the top element in a first direction from a first position in which it engages the top element and thereby the latter is retained in the closed position to a second position in which said sliding element disengages from the top element and thereby the latter can move to the open position, a spring urging the sliding element into the first engaged position and an arresting device cooperating with the sliding element and operative for preventing unintentional movement of the sliding element from the first engaged position to the second disengaged position by itself or under the action of impacts, and thereby preventing opening of the cassette.

Abstract: A cassette for an X-ray film has a cover part, a body part, and means for connecting these parts in a closed position of the cassette. A magnetic plate is associated with one of the parts, whereas a counterplate is associated with the other part of the cassette. The counterplate is constituted by a material which is highly susceptible to a magnetic moment so that in the closed position of the cassette, the counterplate is attracted to the magnetic plate, whereby the coils are urged toward one another and reinforcing parts which surround the X-ray film are pressed to the latter.

Abstract: The outermost sheet of a stack of overlapping sheets in a magazine is partially separated from the neighboring sheet of the stack by the peripheral projection of a singularizing roller which is adjacent to the rear edge face of the outermost sheet. The projection engages and moves the rear edge face forwardly while the outermost sheet is biased against an abutment in the region of its front edge face. The bias upon the outermost sheet is relaxed or terminated when the rear portion of the outermost sheet is flexed away from the neighboring sheet so that the outermost sheet can be withdrawn from the magazine, either forwardly or rearwardly, by advancing rolls which are installed in close proximity of the singularizing roller, in the interior of the roller, or close to the front edge face of the outermost sheet of the stack.

Abstract: The patient's breast is pressed against an X-ray film vacuum cassette inserted into a holding arrangement mounted on the X-ray exposure-taking machine. With the patient in position, the technician can remove and insert cassettes from the side, without requiring the patient to move back away from the cassette holding arrangement as with prior-art holding arrangements. Two opposite ends of the loading platform of the holding arrangement are each provided with two holding brackets mounted slidable towards and away from the respective ends of the loading platform, but spring-biased towards the respective ends of the loading platform.

Abstract: An arrangement for closing and opening a film sheet cassette, particularly an X-ray film cassette, has a bottom element, and a top element provided with a projection and movable relative to the bottom element between closed and open positions. A sliding element is provided having a projection engageable with the projection of the top element in the closed position, and disengageable from the same in the open position. A spring member urges the sliding element into and retains the same in engagement with the projection of the top element in the closed position. An elastic detent element retains the sliding element when the latter is disengaged from the projection of the top element in the open position. The elastic detent element is actuated by the top element when the latter moves from the open position into the closed position, so that the sliding element ceases to be retained by the elastic detent element and is urged by the spring into the engagement of the projection of the top element.

Abstract: An indicating arrangement for indicating the absence or presence of film in the interior of an X-ray film cassette includes an indicating member movably mounted on one portion of the cassette. Another portion of the cassette which is juxtaposed with the one portion has a recess therein, in which the inner end of the indicating element is received when film is absent from the internal space of the cassette, but which is covered by the film when the same is properly introduced into the internal space of the cassette so that the inner end of the indicating element is prevented from entering this recess. The position of the indicating element can be perceived at the exterior of the one portion of the cassette in a tactile or visual manner. The indicating element may be a discrete element mounted on the cassette, or a one-piece part of a flexible portion of the cassette.

Abstract: Apparatus for feeding dielectric receptor sheets and/or sheet-like carriers for receptor sheets to the ionography imaging chamber of a radiographic system from a nearly upright stack of overlapping sheets has a set of suction heads which are mounted on a first lever pivotally mounted on a second lever. The first lever is pivoted relative to the second lever to thereby move the suction heads, which attract the upper marginal portion of the outermost sheet of the stack, along an arcuate path to flex the upper marginal portion away from the neighboring sheet. The second lever is thereupon pivoted to complete the separation of the outermost sheet from the neighboring sheet and to introduce the upper marginal portion of the separated sheet into the nip of advancing rolls which transport the sheet into the interelectrode gap of the imaging chamber. A hold-down device abuts against the outer side of the outermost sheet below the suction heads during flexing of the upper marginal portion of the outermost sheet.

Abstract: Apparatus for feeding dielectric receptor sheets and/or sheet-like carriers for receptor sheets to the ionography imaging chamber of a radiographic system from a nearly upright stack of overlapping sheets has a set of suction heads which are mounted on a first lever pivotally mounted on a second lever. The first lever is repeatedly pivoted relative to the second lever to thereby move the suction heads, which attract a portion of the outermost sheet of the stack below the upper edge face of such sheet, along an arcuate path to thereby flex the upper part of the outermost sheet away from the neighboring sheet. The second lever is thereupon pivoted to complete the separation of the outermost sheet from the neighboring sheet and to introduce the upper edge face of the separated outermost sheet into the nip of two advancing rolls which transport the sheet toward or into the interelectrode gap of the imaging chamber.

Abstract: Dielectric receptor sheets which are transported seriatim from a tray into the gas-filled interelectrode gap of an ionography imaging chamber are arrested ahead of the chamber, and a corona generating device is moved along each arrested sheet to apply a uniform electrostatic charge to or to neutralize the electrostatic charge of the arrested sheet. Each arrested sheet whose charge is influenced by the corona generating device is attracted by suction to the concave side of an arcuate guide. The corona generating device is mounted on a carrier which is pivotable about an axis including the center of curvature of the concave side of the guide. The carrier further supports a pivotable retainer which moves the central portions of the leaders of successive sheets against the concave side of the guide if the leaders exhibit the tendency to bend or bulge away from the concave side. The marginal portions of sheets which are advanced along the guide extend into arcuate channels which flank the concave side.

Abstract: A film cassette including a base and a cover, two lock and release slides selectively movable for locking the cover to the base in a closed position and for releasing the cover from the base in an open position, and a linkage for linking the two slides together such that when forces arise on the two slides when a jolt is experienced, the forces on the two slides act against one another. In this way, the chance of such forces leading to movement of the two slides is reduced.