Abstract: An aeration device adapted to aerate one or more sheets of a stack of sheets includes a side blower configured to selectively provide an air stream at an outlet thereof along an airstream direction so as to impinge against at least a portion of the stack. A height detecting device is configured to detect a height of an uppermost sheet of the stack. A side blower adjustment device is configured to adjust a height of the side blower and/or an angle of the airstream direction so as to track, by the air stream, the uppermost sheet of the stack based on an input from the height detecting device.

Abstract: An aeration device adapted to aerate one or more sheets of a stack of sheets includes a side blower configured to selectively provide an air stream at an outlet thereof along an airstream direction so as to impinge against at least a portion of the stack. A height detecting device is configured to detect a height of an uppermost sheet of the stack. A side blower adjustment device is configured to adjust a height of the side blower and/or an angle of the airstream direction so as to track, by the air stream, the uppermost sheet of the stack based on an input from the height detecting device.

Abstract: A circuit arrangement for automatic, load-dependent control of at least one winding current of a respective motor winding of a self-timed bipolar stepper motor, includes a first power driver circuit for a first motor winding and a second power driver circuit for a second motor winding. The circuit arrangement includes a first XOR gate and a second XOR gate, and a first resistor connected so as to couple the first XOR gate to an anode of a first diode. A cathode of the first diode is coupled to the comparator input of the first power driver circuit via a second resistor. A third resistor is connected so as to couple the second XOR gate to an anode of a second diode. A cathode of the second diode is coupled to the current-controlling comparator input of the second power driver circuit via a fourth resistor.

Abstract: A system for separating an article from the outer part of a stack and conveying it along a transfer path includes a stack assembly configured to receive a stack of articles. A mounting assembly including at least one vortex suction unit is disposed so as to face the stack of articles at least one of a leading edge and a trailing edge thereof. The vortex suction unit includes a conveyor configured to transport an article from the stack.

Abstract: A system for conveying an article along a transfer path includes at least a first and a second vortex suction unit disposed in sequence in a direction of the transfer path. A conveyor is configured to support the article relative to at least one of the suction units and a main controller is configured to separately control the vortex suction units so as to convey the article along the transfer path using the conveyor.

Abstract: A circuit arrangement for automatic, load-dependent control of at least one winding current of a respective motor winding of a self-timed bipolar stepper motor, includes a first power driver circuit for a first motor winding and a second power driver circuit for a second motor winding. The circuit arrangement includes a first XOR gate and a second XOR gate, and a first resistor connected so as to couple the first XOR gate to an anode of a first diode. A cathode of the first diode is coupled to the comparator input of the first power driver circuit via a second resistor. A third resistor is connected so as to couple the second XOR gate to an anode of a second diode. A cathode of the second diode is coupled to the current-controlling comparator input of the second power driver circuit via a fourth resistor.

Abstract: A device for storing data carriers has a housing (10). In the housing (10) magazines (12) can be inserted, which accommodate data carriers, e.g. magnetic tape cartridges (26) lying flat. In order to be able to exchange cartridges (26) without moving the magazine (12) out of the housing (10) and without interrupting the operation of the device, end-sided receptacles of the magazines (12) are designed as a changing device (28), which is mounted as a drawer in the associated magazine (12) and which, in the case of the inserted magazine (12), can be extended out of this magazine (12) and out of the housing (10).

Abstract: A robotic unit with a picker (18) serves for handling data media in a storage device. The robotic unit can be traversed with a base plate (24) on a guide bar (16). On the base plate (24) a rotary plate (28) is disposed which can be turned about a vertical axis. On the rotary plate (28) two motors (52, 56) are disposed, each of which causes, via a toothed wheel drive, the translational and the turning movement of the robotic unit. The toothed wheel drives (48, 50, 54, 58) are disposed in a common plane in an indented recess (46) of the base plate (24).

Abstract: A device for separating sheets of a recording medium has a feed head (22) that, together with feed rollers (58), lies on the top sheet of a horizontally arranged stack of the recording medium. The feed rollers (58) push the top sheet against a rising incline, so that its leading edge is lifted up and separated from the stack. The feed head (22) is arranged on an arm (18) that is designed to swivel freely on a swiveling plane that is parallel to the plane of the incline. In the feed head (22), the feed rollers (58) can move away from the incline parallel to the plane of the stack against the spring force.

Abstract: A feed roller is provided for use in a feed roller assembly for intermittently feeding sheets. The feed roller has a body having a cross-section including an arc portion forming a partially cylindrical configuration. A support member is coupled to the body on at least one side of the body. A distance roller is rotatably supported by the support member relative to the body. The distance roller is spaced apart opposite the arc section parallel to the body.

Abstract: A sheet conveyance system has at least one driven conveying shaft, with a variable spacing of the driven conveying shaft from the sheet stack. The driven conveying shaft includes at least one sheet conveyor that acts on the sheet to be conveyed with a friction coating. A toothed wheel is fixedly disposed on the conveying shaft, whereby this toothed wheel is enclosed by an outer ring that supports the friction coating and has an inner toothing constantly meshes with the outer toothing. The partial circle diameter of the toothed wheel is smaller than the inner toothing. A transferred force acts on the outer ring such that it is placed with a contact force onto the sheet. A spacer maintains a fixed spacing between the axis of rotation of the toothed wheel and the axis of rotation of the outer ring.

Abstract: Sheets (12, 14) of a print medium kept in a stack (10) are individually fed into an office machine. The edge of the uppermost sheet (12) is raised off the corresponding edge of the following second sheet (14). At least one band (32) is then inserted into the gap formed in this way, which separates the uppermost sheet (12) from the following sheet (14), reducing thereby the friction between the uppermost sheet (12) and the following sheet (14) when the uppermost sheet (12) is pulled off, and minimizing thereby any electrostatic charge of the sheets (12, 14) caused by such friction. The band (32) can be retracted into a band housing (36).

Abstract: The invention relates to a switch (5, 105) for signaling a position of a sheet (27) of paper, film or similar flat material in a transport path (3, 103), of a handling system (1), in particular of a feed system, for sheets (27) of paper, film or similar flat material, having an actuating mechanism (9) and a sensor (11, 111). In this case, according to the invention, a first actuating mechanism (9) has a lever (31) a toothed transmission (33) and an actuating element (21, 21?), which interacts with the optosensor (11), with the lever (31) having a stop (41) at one end for the sheet (27) and having a toothed profile (43) at the other end, which acts on the toothed transmission (33), in which case the actuating element (21, 21?) can be moved by the toothed transmission (33).

Abstract: For storage of data on data carriers accommodated in cassettes (28), a device is used with a magazine, having receptacles for cassettes (28) and with a robot unit (44) for changing the cassettes (28) between the receptacles and a drive (16). The magazine is movable relative to robot unit (44), in order to position the selected receptacle for changing of the cassette (28). For positioning, a sensor unit is provided on robot unit (44) and a light guide element on each receptacle. The light emitted from the light transmitters of the sensor unit is guided via the light guide element to the light receivers of the sensor unit, when they are congruent with the positioning position of the robot unit (44) and receptacle.

Abstract: A digital data storage unit, such as tape library, has a multiplicity of storage media slots, each storage media slot for receiving a storage media, such as a tape, one or more of data transfer drives, such as tape drives, for writing data to and reading data from the storage media, a robotic device to transport the storage media between the slots or between the drives and the slots, at least one interface bridge which is connected to one or more host computers to one or more tape drives and to the robotic device, the interface bridge is performing bridging and switching operations for commands sent by the host on the basis of sub addresses, such as LUN, to send robotic mover commands to the robotic device, wherein the tape drives are addressed by main address, such as SCSI ID.