Abstract: A recording/printing unit using roll paper, and method for easily and securely detecting the terminal end of roll paper rolled around a core inside a color printer. The outside face of said core is darker than the roll paper. A sensor is provided for detecting the intensity of reflected light. A pinch roller is provided turning in contact with the roll paper surface and a spring is provided for pressing the pinch roller against the surface of roll paper, and for detecting the terminal end of roll paper by the change in the intensity of reflected light.

Abstract: An electrical connector for use as a network terminating apparatus is provided including a front or cover plate assembly, an intermediate unit which in use is disposed behind the cover assembly and a backing unit. The intermediate unit carries diagnostic circuitry, an assembly of connecting devices, and one or more contact assemblies, and one or more sets of generally identical contact elements, which extend between and interconnect the elements carried by the intermediate unit. The connecting device may comprise a multi-way connector. Each contact may include an elongate strip-like, electrically conductive portion from which project, generally orthogonally, a plurality of contact arms, each the arm being disposed at a predetermined position so that it can make electrical contact with one of the elements carried by the intermediate unit. One of the contact arms may include an insulation displacement type contact.

Abstract: A delivery device for supplying a respirator with breathing gas includes a cylinder housing with a piston, and a drive unit for generating delivery strokes, which is connected to the piston via a piston rod. A compact design is achieved by providing the drive unit with a motor-driven hollow shaft with a spindle acting as a piston rod displaceable in it telescopically.

Abstract: Apparatus for dyeing textile materials with a fixed, hollow and substantially cylindrical body intended to contain a dyeing bath consisting of water and dyeing substances in predetermined proportions, comprising in combination:--a basket for holding the materials to be dyed, whose side wall is provided with a plurality of ports or openings for the communication of the basket with the cavity of the body, and with upper and lower bases being provided with corresponding ports or openings, the basket being locatable within the cavity of the container and a transmission driven by a corresponding driving member and connected to the upper base of the basket for the vertical reciprocating movement thereof.

Abstract: The device for deflecting a laser beam comprises a mirror (1) and means for orientating the mirror according to a predetermined equation for the controlled deflection of the laser beam (F). The mirror (1) is supported so that it can oscillate about two axes and the means for orientating the mirror comprise a plurality of electromagnets (11A, 11B, 15; 13A, 13B, 17) supplied with currents which are controlled and variable in time (I.sub.15, I.sub.17) to exert magnetic forces on said mirror (3).

Abstract: An electrical plug connector, including an upper housing portion 1, a lower housing portion 2 and a plug chamber 4 for a RJ plug. In the upper housing portion 1 contact elements to be wired with connecting wires are disposed. The inner ends of the connecting wires are connected with contact strips 7 projecting into the plug chamber 4 for contacting the RJ plugs. The plug chamber 4 is adapted as a separate housing portion 3 and is latchable with the lower housing portion 2 by means of connection elements 16, 17, 18, in at least two different positions. The contact strips 7 are bent off each in different directions into the plug chamber 4, depending upon the position of the plug chamber 4.

Abstract: An engine-independent vehicle heating appliance has a combustion air fan, a fuel dosing pump and a heat exchanger that surrounds the combustion chamber, as well as a controller that controls the operation of the vehicle heating appliance. In compact designs, special measures are required to protect the electronic components of the controller from overheating. In order to carry off heat in an effective manner, the controller has a heat conducting plate upon which the electronic power components (18) are mounted, their connections being electrically connected to the wiring on the board (16). Loss heat that results from the operation of the components (18) is carried away by the material of the heat conducting plate (8a, 8b) to the fan housing (6). Since the latter is always cool a sufficient cooling of the components (18) is ensured.

Abstract: A pushchair comprises a frame onto which is hinged a reclinable backrest (24). On opposing sides of the reclinable backrest (24) the frame supports arms (20) pivotally rotatable in a vertical plane between a first position and a second position. Each arm (20) comprises a plurality of engaging notches (19) disposed along a path (23) along which slide pins (18) protruding laterally from the backrest (24). In the first position each arm (20) engages with one of the notches (19) the corresponding pin (18) protruding from the backrest, so as to block the movement of the backrest in a pre-established angular position and in the second position disengages the notches (19) of the plurality from the pin (18) to allow free movement of the backrest. Disposed on the backrest is a manual control to engage the arms (20) and move them simultaneously between the first and the second position.

Abstract: In a tandem warhead, the preliminary shaped charge (5) is arranged at the front end of a spacer (9) which is displaceable toward the front in a guide (12) provided in the preliminary structure (13) of the warhead. Shearing pins (14) are provided for fixing the spacer (9) in the pushed in position. A pyrotechnical element (16) is fastened at the spacer (9). The spacer (9) is provided at its rear end with an annular element (28) which contacts the lining (3) of the main charge (1) in the pushed in position. A pressure space (32) is accordingly formed, so that a high pressure is achieved when the pyrotechnical element (16) is fired, whereupon a recoil occurs due to the propellant gases of the pyrotechnical element (14) flowing out through nozzles (25), which recoil ensures a gentle starting of the spacer (9) into the moved out position.

Abstract: A floor covering, in particular for sport fields, based on elastic plastics, has a substantially flat top side on which one can walk and a bottom side spaced apart therefrom. The covering has an anisotropic elasticity in the desired running direction, so that it dampens more strongly the impact of a shoe of a runner running on the top side in the desired direction than the impact of the shoe of a runner running on the top side in the opposite direction.

Abstract: A vertical blind device with a crank rod for operation, in which slats, which are hung on slat carriages, can be pivoted about a vertical axis by 180.degree. from a closed hanging position, directed horizontally in a plane parallel to one another, into the other closed hanging position and are horizontally movable with the slat carriages in a support rail. A pivot pin of a pivot drive is provided for a pivot shaft, guided through all the slat carriages in an axially displaceable manner and adapted to rotate in unison, and the crank rod have complementary coupling elements. The pivot pin lies with its coupling element in the two stopped positions of the slats laterally outside the plane of the closed hanging. During a reversed rotation, the pivot pin with its coupling element, together with the 180.degree. pivoting movement of the slats, pivots from one side to the other side of the then closed hanging slats.

Abstract: Sweeping devices for utility vehicles with a rotatingly driven bristle roller have been known, which are covered on the top side by a protective housing and in front of which a feed screw extending in parallel to the bristle roller is arranged, and the feed screw is arranged, drivable by a motor, in a sweepings collection housing, which is provided with a rear charging opening and with a discharge opening at the end of the screw, wherein the sweepings collection housing has an obliquely downwardly directed baffle plate with a flexible bottom plate under its charging opening. To improve the mode of operation and the sweeping performance, especially at higher speeds of travel, the bristle roller is driven at such a speed of rotation that in the area located between it and the charging opening of the sweepings collection housing, it generates an air flow, which continues into the discharge opening of the sweepings collection housing, which is designed as a feed cup and a flow channel at the same time.

Abstract: A hinged support or the like for the articulated connection of chassis parts in motor vehicles, in which bearing eyes (1, 2) provided at the ends are connected to one another in one piece by a shaft part (5). The shaft part (5), manufactured according to the injection molding process, has an inner, longitudinally extending hollow section and a smooth outer contour.

Abstract: A heat exchanger (1) acting in the manner of a radiator can be thermally coupled with a first heat source (internal combustion engine 2) and/or with a second heat source (burner 3 which can be operated independently from the internal combustion engine) via a fluidic heat carrier circuit, especially a water circuit. In addition to other parameters, the temperature of the first heat source can also be taken into account in the control of the heat carrier circuit by thermal setting elements (13).

Abstract: In a method of driving vibrating compressors having such a construction that a-c voltage is fed to a vibrating compressor by converting d-c voltage into a-c voltage with two MOS-FETs, the two MOS-FETs as switching elements are driven to convert d-c voltage into a-c voltage by changing the ON time of each of the MOS-FETs corresponding to suction and compression strokes in one cycle of the vibrating compressor to improve the operating efficiency of the vibrating compressor. To this end, suction and compression time in one cycle of the vibrating compressor is changed by means of a timer IC.

Abstract: A switching field for electromechanically switching electrical signal lines with crosspoints. The parts forming the crosspoints comprising membranes, at and between which further parts of the circuit are disposed. The switching field is particularly for communication and data transfer applications. The cross points are disposed matrix-shaped manner and signal lines assigned to the individual crosspoints. The crosspoints are composed of at least two contact surfaces which are movable relative to each other, to the one contact surface, a permanent magnet, and to the other contact surface, a ferromagnetic material with a coil assigned thereto.

Abstract: An optical gas analyzer for measuring the percentage of components in a gas phase by IR absorption, containing a power source, a measuring path containing the gas sample, a photoelectric receiver with an evaluation circuit arranged downstream of it, which receiver detects the IR radiation from the measuring path, and a plurality of filters, which can be introduced one after another into the beam path at a predetermined filter change frequency f, wherein measured signals belonging to the filters are sent by the receiver due to the radiation extinction in the measuring path, is to be improved such that different components in the gas sample can be detected in a simple manner and at good selectivity.

Abstract: A flexible hyperbaric chamber includes a flexible air tight fabric vessel equipped with one opening at one or each end. A mobile door is provided for closing the fabric vessel. A metallic shield is provided adjacent to the opening outside the fabric vessel, the metallic shield defines a support into which the mobile door latches. A metallic collar is provided adjacent to the opening inside the fabric vessel. The metallic shield and the metallic collar cooperate to define a vice device for holding fabric of the fabric vessel. The fabric of the flexible fabric vessel is inserted into the vice device and this is tightened by a series of bolts with a predetermined torque. A flexible containment cage made by flat textile straps is provided. The straps are arranged in a discrete number of radial rings and a discrete number of longitudinal members, each intersection of radial rings and longitudinal members being fixed together to guarantee the consistency of the geometry of the cage.

Abstract: A process for linearizing the gain and phase-frequency characteristics of traveling-wave tubes and transistor amplifiers at different power levels is suggested, wherein the signal is divided between two branches and again united into the output signal, and in which the signal is divided between partial networks with compressing gain behavior, which are placed between two 3-dB couplers, and gain compression or gain expansion of the partial signals (E or K) is generated at two gates (KOMP, EXP) by the reflection behavior, which is different corresponding to the signal level, and the level of the nonlinear, gain-expanded partial signal (E) is raised by a linear amplifier (E2), and the additionally amplified, gain-expanded signal (E2) and the gain-compressed signal (K) are then united into the output signal with an adding network.