Abstract: A coin comprises a core made of a first metal, an outer ring surrounding the core concentrically and made of a further metal, and a central ring between the core and outer ring fixedly connected thereto. The central ring consists of an electrically insulating material. Further, the central ring is transparent to electromagnetic waves of a first wavelength range and is less transparent or not transparent to a second wavelength range. Methods for testing the coin are also described.

Abstract: The described device for separating coins comprises a rotatable base disc (32), a delimiting element (34) and a driver disc (36). A circular ring-shaped sorting track (12) is arranged eccentrically relative to the base disc (32). The driver disc (36) and a circularly arranged conveying element (14) interact in a transfer region (38) such that the lowest layer of coins among a quantity of coins conveyed by the driver disc (36) are pushed underneath the conveying element (14), clamped thereat and conveyed further.

Abstract: A device for dispensing coins includes a rotatingly-driven rotary disk, a coin container arranged above the rotary disk, through which coins are fed to a top side of the rotary disk, and a coin discharge. A wiper device is also includes and comprises at least one elastic wiper arm arranged above and at a distance from the top side of the rotary disk and turning with the rotary disk.

Abstract: A device for dispensing coins includes a rotatingly-driven rotary disk, a coin container arranged above the rotary disk, through which coins are fed to a top side of the rotary disk, and a coin discharge. A wiper device is also includes and comprises at least one elastic wiper arm arranged above and at a distance from the top side of the rotary disk and turning with the rotary disk.

Abstract: The described device for separating coins comprises a rotatable base disc (32), a delimiting element (34) and a driver disc (36). A circular ring-shaped sorting track (12) is arranged eccentrically relative to the base disc (32). The driver disc (36) and a circularly arranged conveying element (14) interact in a transfer region (38) such that the lowest layer of coins among a quantity of coins conveyed by the driver disc (36) are pushed underneath the conveying element (14), clamped thereat and conveyed further.

Abstract: A coin comprises a core made of a first metal, an outer ring surrounding the core concentrically and made of a further metal, and a central ring between the core and outer ring fixedly connected thereto. The central ring consists of an electrically insulating material Further, the central ring is transparent to electromagnetic waves of a first wavelength range and is less transparent or not transparent to a second wavelength range. Methods for testing the coin are also described.

Abstract: A coin sorting device comprising a housing and a first rotary disc in the housing and rotatingly drivable by a rotary drive for receiving coins to be sorted with different diameters, the first rotary disc is surrounded by a guide wall and a coin discharge area delimited by a wall section, coins on the first rotary disc arrive at a coin conveyor track connecting to the coin discharge area, a conveying device is provided for conveying coins, wherein the coin conveyor track is delimited by a guide edge, and wherein at least one opening is provided to the coin discharge area and/or along and/or next to the coin discharge track, through which the coins travel to an area below the first rotary disc, at least one additional rotary disc rotatingly drivable by a rotary drive is arranged below the first rotary disc.

Abstract: A coin sorter comprising a housing and a rotary disc arranged in the housing and rotatingly drivable by a rotary drive for coins to be sorted, the rotary disc is surrounded by a guide wall and a coin discharge area delimited by a wall section is provided, through which coins on the rotatingly driven rotary disc arrive at a coin conveyor track connecting to the coin discharge area, a rotatingly driven conveyor belt progressing in section above the rotary disc for conveying the coins along the coin conveyor track is arranged above the coin conveyor track, wherein the coin conveyor track is delimited by a guide edge, along which the coins are conveyed by the conveyor belt, wherein the bottom of the coin discharge area next to the wall section delimiting the coin discharge area has a discharge hole, through which the coins conveyed against the wall section can fall.

Abstract: A coin sorting device comprising a housing and a first rotary disc in the housing and rotatingly drivable by a rotary drive for receiving coins to be sorted with different diameters, the first rotary disc is surrounded by a guide wall and a coin discharge area delimited by a wall section, coins on the first rotary disc arrive at a coin conveyor track connecting to the coin discharge area, a conveying device is provided for conveying coins, wherein the coin conveyor track is delimited by a guide edge, and wherein at least one opening is provided to the coin discharge area and/or along and/or next to the coin discharge track, through which the coins travel to an area below the first rotary disc, at least one additional rotary disc rotatingly drivable by a rotary drive is arranged below the first rotary disc.

Abstract: A coin sorter comprising a housing and a rotary disc arranged in the housing and rotatingly drivable by a rotary drive for coins to be sorted, the rotary disc is surrounded by a guide wall and a coin discharge area delimited by a wall section is provided, through which coins on the rotatingly driven rotary disc arrive at a coin conveyor track connecting to the coin discharge area, a rotatingly driven conveyor belt progressing in section above the rotary disc for conveying the coins along the coin conveyor track is arranged above the coin conveyor track, wherein the coin conveyor track is delimited by a guide edge, along which the coins are conveyed by the conveyor belt, wherein the bottom of the coin discharge area next to the wall section delimiting the coin discharge area has a discharge hole, through which the coins conveyed against the wall section can fall.

Abstract: A feed unit for filling a coin module with coins improved in such a way that a plurality of coin modules can be filled or loaded with just one feed unit. The coin feed unit is a coin drum which is rotatable inside a shell. A coin stock compartment is provided into which coins can be filled via a charge aperture. A dispensing compartment is provided inside the coin drum from which coins can be taken out via the discharge aperture. A passage is arranged in such a way that coins get from the stock compartment into the dispensing compartment as the coin drum rotates around a pivot pin.

Abstract: A feed unit for filling a coin module with coins improved in such a way that a plurality of coin modules can be filled or loaded with just one feed unit. The coin feed unit is a coin drum which is rotatable inside a shell. A coin stock compartment is provided into which coins can be filled via a charge aperture. A dispensing compartment is provided inside the coin drum from which coins can be taken out via the discharge aperture. A passage is arranged in such a way that coins get from the stock compartment into the dispensing compartment as the coin drum rotates around a pivot pin.

Abstract: Inductive measuring arrangement for coin validation in free-fall coin-operated devices, in which at least one elongate coil arrangement on one side of the drop path of the coins extends transversely to the drop path, two coaxial elongate coils being arranged adjacent to one another, a shell core which is E-shaped in cross section being provided, which receives the coils between its outer arms, and a central arm extending, either not at all or only partially, into the outer coil.

Abstract: Inductive measuring arrangement for coin validation in free-fall coin-operated devices, in which at least one elongate coil arrangement on one side of the drop path of the coins extends transversely to the drop path, two coaxial elongate coils being arranged adjacent to one another, a shell core which is E-shaped in cross section being provided, which receives the coils between its outer arms, and a central arm extending, either not at all or only partially, into the outer coil.

Abstract: A method for testing coins which move along a runway, using a coil assembly which, on either side of the runway, has a transmission coil C, D adapted to be admitted by a transmission signal and a reception coil A, B on a common ferrite core wherein the reception coil smaller in diameter is closer to the runway than is the transmission coil and the diameter of the transmission coil is smaller than the diameter of the smallest coin to be assumed, and wherein the ferrite core has arranged thereon a secondary coil coupled to the transmission coil the signal of which is connected, as a negative-feedback signal, to the input of a differential amplifier in such a way that the signal of the transmission coil agrees with the transmitted signal provided to the other input of the differential amplifier.

Abstract: A method for testing coins which move along a runway, using a coil assembly which, on either side of the runway, has a transmission coil C, D adapted to be admitted by a transmission signal and a reception coil A, B on a common ferrite core wherein the reception coil smaller in diameter is closer to the runway than is the transmission coil and the diameter of the transmission coil is smaller than the diameter of the smallest coin to be assumed, and wherein the ferrite core has arranged thereon a secondary coil coupled to the transmission coil the signal of which is connected, as a negative-feedback signal, to the input of a differential amplifier in such a way that the signal of the transmission coil agrees with the transmitted signal provided to the other input of the differential amplifier.

Abstract: An analyzing method of a blood coagulation reaction by detecting an optical change of a blood sample with an elapse of time, the method includes: setting at least one checkpoint or check region between a starting point of the blood coagulation reaction and the endpoint thereof; and monitoring a reaction state of the blood coagulation reaction at the checkpoint or in the check region to detect an abnormality of the blood coagulation reaction.

Abstract: A method for measuring the diameter of coins in coin validators, comprising the steps below: The coins traverse an electromagnetic field which is formed such as to partially hide the field, at least also by their upper area. The field is generated between at least one transmitter coil and a receiver coil. The transmitter coil is periodically acted on by a short transmission pulse the duration of which is small as compared to the time of coin passage. The maximal attenuation values are determined for different times of the transmission pulse. The attenuation values measured are extrapolated into time 0. The measured value determined by extrapolation is compared to a predetermined acceptance band or a predetermined characteristic line for coin diameters for comparison to a stored setting.

Abstract: An analyzing method of a blood coagulation reaction by detecting an optical change of a blood sample with an elapse of time, the method comprises: setting at least one checkpoint or check region between a starting point of the blood coagulation reaction and the endpoint thereof; and monitoring a reaction state of the blood coagulation reaction at the checkpoint or in the check region to detect an abnormality of the blood coagulation reaction.

Abstract: A method for measuring the diameter of coins in coin validators, comprising the steps below: