Abstract: A valve range is suggested suitable for use in connection with the control of fluid operated equipment. It possesses a fluid manifold, which is able to be fitted with pneumatic valves, which are operated via a signal manifold electrically. The valve range is so designed that it is suitable for the combined operation or control both of pneumatic valves and also of hydraulic valves. For the control of hydraulic valves it is provided with at least one control connection, from which the respective control signals may be taken. It is in this manner that, starting with a central valve range both pneumatic and also hydraulic valves may be operated and controlled in a comparatively simple fashion.

Abstract: A spool valve possesses a longitudinally divided valve housing, in the case of which housing parts are assembled with longitudinal sides fitted together. In the wall of the valve housing valve ducts are provided. In order to enable simplification of the manufacture of such valve housings at least part of the length of a valve duct extends in the parting interface of the valve housing. In this respect the wall of the valve duct is made up of complementary peripheral wall portion, which are provided at the housing parts adjacent to each other in the parting interface.

Abstract: A choke valve, which comprises a housing wherein a choke duct extends. Two connection ports of the choke duct render possible the connection of means for the supply and removal of driving fluid. A choke member cooperates with the choke duct and is able to be set for the regulation of the flow rate. One of the connection ports is provided on the choke member, the adjoining portion of the choke duct extending through the choke member. It is in this manner that one connection side of the valve is also the adjustment side of the choke valve, something which reduces the amount of space for the fitting thereof.

Abstract: A linear-drive device with a housing (1) in which a drive element (3) is fitted in such a way that longitudinal motion is permitted. On the outside of the housing (1) is a longitudinal guide element (16) on which a guide rail (18) is mounted, also in such a way that longitudinal motion is permitted. A lug (14) projecting through a longitudinal slot (13) in the housing (1) connects the drive element (3) with the guide rail (18). In order to prevent the lug (14) being damaged if the drive element (3) strikes one of the end stops, a buffer device (30) acting in the direction of motion is located in the connection between the guide rail (18) and the drive element (3).

Abstract: An electropneumatic control device having a plurality of valves, each valve being associated with at least one electrically actuatable valve drive. Each valve drive has integrated therein its own bus communication unit and is coupled to a bus line for communication with a central control unit. Actuating control signals are supplied from the central control unit for controlling each of the plurality of valves integrated therein. The valve drives may also include electrical contacts for piercing an insulating sheath of the bus line to make electrical connection with control wires within the bus line. The electropneumatic control device described above reduces design complexity.

Abstract: A transceiver module for coupling between cells in a distributed intelligence network and a twisted pair line. The module receives power from the line and provides power to its respective cell. At the end of transmitting a packet, the transceiver transmits a code violation, then an anti-code violation to dissipate energy in the line. This is followed by clamping the line for the dead time between packets. N transceivers may be connected (without a cell) to form a repeater. The transceiver module may be used in a network having free topology; that is, an ideal transmission line, with terminators is not needed.

Abstract: The invention proposes a control device for multiway valves. It comprises two adjacently arranged solenoid means, which are respectively associated with a valve member to be driven. Each solenoid means comprises a coil. Outside the coils there is a yoke device for conduction of the magnetic fields, which are comprised in a yore part, which is associated with coils so that it may be pervaded by the magnetic fields of both coils. It is in this manner that an extremely compact design is rendered possible.

Abstract: A personal computer or equivalent is programmed to create a virtual operating unit for a robotic device (eg., a micro-processor controlled machine, conveyor, etc.). The actual operating unit, which plugs into the robotic device and controls it, includes a keypad and a display. When reprogramming the machine, the operating unit is unplugged and the computer is plugged in. The computer can be switched between two modes. In a programming mode, the computer is used to modify the program in the robotic device microprocessor. In an operating mode, the computer mimics the operating unit to test the newly-entered program. On the computer screen are generated a virtual display (the image of the actual display of the operating unit) and a map of the operating unit keypad. The technician observes the virtual display on the computer screen and enters commands, indirectly, through the computer's keyboard instead of through the actual operating unit keypad.

Abstract: A transceiver for transmitting and receiving digital data represented as stair-stepped sinusoidal waveforms over twisted pair lines interconnecting nodes of a network. The transmitter of the transceiver converts square waves into the stair stepped sinusoidal waveforms by utilizing a number of current sources for supplying differing amounts of current to a resistor coupled across the twisted pair lines. Shift registers control a set of switches which control the direction and the amount of current flowing through the resistor. Thereby, the output voltage across the resistor can be controlled to produce the stair-stepped sinusoidal waveform by clocking the digital signal to the shift registers. The receiver of the transceiver re-converts received stair-stepped sinusoidal waveforms back to their respective digital signals.

Abstract: A rotary-linear unit from whose front end the operative section of a output drive part projects. This output drive part is drivingly connected both with a linear drive and with an oscillating vane motor. The oscillating vane motor is associated with the rear end of the rotary-linear unit, the linear drive being arranged between the oscillating vane motor and the operative section of the output drive rod. This leads to an assembly which is extremely compact both in the axial direction and also in the radial direction.

Abstract: A spool valve having a valve housing with an internal spool receiving space, in which a valve spool is arranged. A plurality of sealing rings are arranged in axial sequence. Such sealing rings are retained in holding recesses, which are formed integrally with the valve housing. The valve housing is itself longitudinally divided and is composed of a plurality of housing parts which respectively constitute a wall section, extending for some distance in the peripheral direction, of the spool receiving space including the associated peripheral sections of the holding recesses. It is in this manner that the sealing rings may be inserted into the spool receiving space without any difficulty in the separated condition of the housing parts, whereafter the housing parts only have to be fitted together.

Abstract: A linear drive device has a linear motor which consists of a piston, an output rod and a control rod. The two rods extend through the two end plates of the motor housing. The working or output rod is designed for the transmission of power to some structure. The control rod cooperates a sensor for positioning. The sensor and also a valve arrangement is integrated in the housing end plate associated with the control rod. The valve arrangement controls flow through pressure fluid duct provided in the housing end plate at the control end for actuating the linear motor.

Abstract: A valve arrangement comprising a fluid distributor and a signal distributor arranged adjacent to the same. On the fluid distributor a main valve with a control unit is mounted. The signal distributor has a set of upwardly directed plug connectors. Furthermore there is a set of upwardly directed plug connectors on the control unit, which set is however at a higher level than the that of the signal distributor. In order to produce an electrical connection between the control unit and the signal distributor there is an electrical connection bridge, which comprises internal electrical conductors, which connect together two further sets of electrical plug connectors. Since these sets of plug connectors are directed downwards the connection bridge may be plugged in position from above without any difficulty, respectively associated sets of plug connectors entering into a plugged connection with one another.

Abstract: A transceiver module for coupling between cells in a distributed intelligence network and a twisted pair line. The module receives power from the line and provides power to its respective cell. At the end of transmitting a packet, the transceiver transmits a code violation (pulse), then an anti-code violation (pulse of opposite polarity) to dissipate energy in the line. This is followed by clamping the line for the dead time between packets. N transceivers may be connected (without a cell) to form a repeater. The transceiver module may be used in a network having free topology; that is, an ideal transmission line, with terminators is not needed.

Abstract: A sealing ring for multi-way valves comprising a valve housing and a valve spool able to be moved axially in translation therein. The ring comprises an annular sealing body which possesses radially to the outside possesses a circumferentially extending outer sealing portion for the anchoring thereof in a holding groove or recess and radially to the inside has a circumferentially extending inner sealing portion for providing a sealing action between it and the valve spool surrounded by it, while between the two portions there is a concentric central section. There is a provision for the possibility of axial motion of the inner sealing portion of the part, which is nearer to the valve spool, and furthermore a supporting and stiffening ring is present which is manufactured of a material harder than the material of the sealing body and preferably in a setting, as seen in the radial direction, outside the pivot axis with a coaxial arrangement in the sealing body.

Abstract: A housing for a drive cylinder which comprises an inner tube and an outer tube. The inner tube is a metal tube and is encircled by the outer tube consisting of synthetic resin material coaxially. In this manner it is possible to ensure a highly accurate cross section for the inner surface swept by the piston during operation. Simultaneously there is a large amount of freedom as regards any desired particular configuration of the external surface of the cylinder barrel.

Abstract: A linear drive which has a housing with a longitudinal slot. A drive part able to be longitudinally moved in the housing is connected by the aid of a link part, running in the longitudinal slot, with a guide part, which is guided for motion on a longitudinal guide arranged outside the housing. As a longitudinal guide a rod guide is provided, which has at least one guide rod adjacent to the housing and spaced from it radially. The guide rod is exposed along its guide stroke and has the guide part encircling it. There is therefore the possibility of accurate guiding of the moving unit without being affected by any tendency of the housing to splay outwards. The costs of manufacture are low.

Abstract: A fluid power valve unit with at least one electromagnetic actuating block on a valve block which is adapted to be connected with a connection block having fluid power ducts therein. This connection block has means for connection with further connection blocks and contains electrical power and/or control conductors therein, and a plug connecting device connected with these conductors is respectively arranged on those sides of the connection block, which come into engagement with corresponding sides on connection with further connection blocks. Furthermore there are electrical connecting devices for the conductors in the connection block and connection of same with electrical terminals of the at least one actuating block. It is thus possible to dispense with wiring using separate wire elements on the valve unit even in the case of a number of such units being plugged together in rows, the electrical connections also being automatically produced on plugging together.

Abstract: A linear drive comprising a drive member adapted to be reciprocated axially in a housing between two end positions. Opposite to the former there is a wall on at least one axial side. There are means to reduce the impact in the end position, such means having an annular lip. The lip is arranged on the drive member or on the wall and respectively faces the wall or the housing. The lip defines a damping space which is open on an impact side. If the drive member approaches one end position thereof, the damping space is occluded and reduced in volume so that some trapped fluid will escape via a relief opening so that there is a braked part of the stroke. Using simple means it is therefore possible to provide an extremely efficient fluid damping at the end position.

Abstract: The invention provides a male thread as a universal thread which may be screwingly connected with different types of female thread. It includes a taper thread section at the front or free end which is followed by a cylindrical thread section. The latter is constituted by a cylindrical BSP thread or a Withworth pipe thread corresponding to the respective thread nominal size, the number of threads per inch being selected to be equal to the nominal value conventional for the nominal size of thread. The number of threads per inch in the taper section is in a range between the nominal values of the cylindrical thread section and of an NPT thread with the same size. Furthermore the invention proposes a female thread with the same design, which may also be used as a universal thread.