Abstract: An arrangement for the sterile handling of a non-sterile endoscope in a sterile environment comprises a sterile endoscope sheath for accommodating the endoscope and a cable via which the endoscope is connectable to a control unit, the arrangement further comprising a sterile cable sheath for accommodating at least a portion of the cable, wherein the endoscope sheath comprises a first sterile lock comprising at least one first sterile flap which in the closed state shields the endoscope arranged in the endoscope sheath in a sterile manner. The cable sheath comprises a second sterile lock having a second sterile flap which in a closed state shields the cable arranged in the cable sheath and/or a plug connector present on the arranged cable in a sterile manner.

Abstract: Detection circuit for detecting electrical capacitance of electrode device in electrostatic holding device with clamp carrier, particularly for detecting component held by holding device, includes phase control circuit couplable to electrode device and has reference oscillator device, phase comparator and VCO circuit (VCOC). Phase comparator is arranged to generate a control voltage of VCOC as a function of reference signal from reference oscillator device and of VCO feedback signal from VCOC, at least one phase control circuit is configured for controlling VCOC as a function of capacitance to be detected, and for outputting an output signal characteristic of capacitance based on control voltage of VCOC, phase control circuit is configured for connection to electrode device such that VCOC contains capacitance to be detected as frequency-determining component, and reference oscillator device is configured for generating reference signal with adjustable reference frequency.

Abstract: An electrostatic holding device (100) for holding component (1) by electrostatic holding forces includes clamp carrier (10) which has electrode device (11) and is configured for receiving component (1), voltage source device (20) for provision of a source charge current for charging clamp carrier (10), source switching device (30) which is arranged for a switchable connection of voltage source device (20) with electrode device (11), and at least one charge storage device (40, 40A, 40B) which has storage capacitor (41, 41A, 41B) and is configured to receive a clamp discharge current and temporarily store electrical charges of clamp carrier (10) in storage capacitor (41, 41A, 41B) and provide a storage charge current for charging clamp carrier (10). Also described is a method for operating holding device (100) and transfer circuit (200) for transmitting charges from working capacitor (201) to storage capacitor (202).

Abstract: Detection circuit for detecting electrical capacitance of electrode device in electrostatic holding device with clamp carrier, particularly for detecting component held by holding device, includes phase control circuit couplable to electrode device and has reference oscillator device, phase comparator and VCO circuit (VCOC). Phase comparator is arranged to generate a control voltage of VCOC as a function of reference signal from reference oscillator device and of VCO feedback signal from VCOC, at least one phase control circuit is configured for controlling VCOC as a function of capacitance to be detected, and for outputting an output signal characteristic of capacitance based on control voltage of VCOC, phase control circuit is configured for connection to electrode device such that VCOC contains capacitance to be detected as frequency-determining component, and reference oscillator device is configured for generating reference signal with adjustable reference frequency.

Abstract: An electrostatic holding device (100) for holding component (1) by electrostatic holding forces includes clamp carrier (10) which has electrode device (11) and is configured for receiving component (1), voltage source device (20) for provision of a source charge current for charging clamp carrier (10), source switching device (30) which is arranged for a switchable connection of voltage source device (20) with electrode device (11), and at least one charge storage device (40, 40A, 40B) which has storage capacitor (41, 41A, 41B) and is configured to receive a clamp discharge current and temporarily store electrical charges of clamp carrier (10) in storage capacitor (41, 41A, 41B) and provide a storage charge current for charging clamp carrier (10). Also described is a method for operating holding device (100) and transfer circuit (200) for transmitting charges from working capacitor (201) to storage capacitor (202).

Abstract: An apparatus for singling out tablets for a rotary tablet-compressing press the rotor of which has associated therewith a nozzle which, via a line and a controllable valve disposed in the line, is adapted to be connected to a pressure source in order to route a tablet into a rejects duct wherein the control signals for the valve are produced by a control device, characterized in that the line, between the orifice of the nozzle and the valve, has disposed a pressure sensor which delivers a sensor signal if the valve is opened or a predetermined minimum pressure prevails in the line and a logic evaluation circuit is provided into which the sensor signal and the control signal are input and that an error signal is produced in the evaluation circuit, which signal is evaluated by the control device if the time relation of the control signals and the sensor signals deviates from a predetermined relation.

Abstract: An apparatus for singling out tablets for a rotary tablet-compressing press the rotor of which has associated therewith a nozzle which, via a line and a controllable valve disposed in the line, is adapted to be connected to a pressure source in order to route a tablet into a rejects duct wherein the control signals for the valve are produced by a control device, characterized in that the line, between the orifice of the nozzle and the valve, has disposed a pressure sensor which delivers a sensor signal if the valve is opened or a predetermined minimum pressure prevails in the line and a logic evaluation circuit is provided into which the sensor signal and the control signal are input and that an error signal is produced in the evaluation circuit, which signal is evaluated by the control device if the time relation of the control signals and the sensor signals deviates from a predetermined relation.

Abstract: A pyrometer for measuring the electromagnetic radiation emitted by an object comprises a first detector to which the radiation is delivered through an optical system as well as a second detector to which the radiation emanating from a reference element is delivered through the same optical system. The temperature of the reference element is monitored and a rotary optical modulator periodically enables and disables the delivery of radiation to the detectors. The output signals from the two detectors are processed to determine the difference therebetween. The sensed temperature of the reference element is taken into account as a part of determining the difference between the two detector output signals. In this way it is possible for the characteristic radiation of the optical system largely to be suppressed. The optical modulator comprises a semi-circular disk having a polyethylene terephthalate substrate coated on each side with metal. The disk is rotated through 180.degree.

Abstract: Tubular bars are connected to form room or open space framing by screw bolts with heads at their ends to connect the bars with intersecting members. Screw bolts with heads are supported in the end areas of the bars to be rotatable and axially movable. Their outward axial movement in each case is limited by a limiting boss in the end area of each bar. The limiting boss for the screw bolts with heads is formed by shaping of the end segments of the tubular bars in their hollow space. In tubular bars with tapered, truncated conical end segments, the head of the screw bolts can be welded against the inside wall of these end segments, when it is of correspondingly fitted truncated conical shape.