Abstract: The invention pertains to a plastic plug-type connector module which carr a printed circuit board made of ceramic. A plurality of plug members each have a rear projecting end soldered to a contact member made from a spring material, and have another portion embedded by injection molding in an insulating carrier body. The contact members in turn make contact with edge contact surfaces of the printed circuit board. In order to simplify the manufacture and to achieve soldering guaranteeing reliable contact, part of a perforated band from which the contact member is cut off is left in place. This part is also used to solder the contact member to the plug member. In order to align the surface of the printed circuit board as exactly as possible parallel to a first, flat surface of the module, there are provided molded locally limited elevations with different heights on a second flat surface which carries the printed circuit board.

Abstract: The interior of a rheostatic device, such as a throttle-valve position potiometer having a rotor with sliding spring contact and a housing exposing at least one end of the rotor for operation, is sealed off against environmental effects by at least two hollow cylindrical rotor walls which are located concentrically within each other and extend towards a lid attached to a bottom part of the housing and at least two hollow cylindrical walls of said lid which are concentrically disposed within each other and extend between the rotor walls.

Abstract: A device for fixing an end of a shouldered casing containing and guiding a ulling or pressing cable includes a holding block with a recess extending axially into the block and a slot extending axially through and radially into the block and into the recess for inserting the casing into the block and recess. An edge surface of the recess surrounds and interferringly engages a shoulder of the casing and while a bottom of the recess interferringly engages the shoulder. A flexible tongue is provided facing the recess and serving as a stop for either the transverse end surface of the end of the casing or a similar transverse side surface of the shoulder.

Abstract: In a switch, for example, for a device such as a drill, a key switches an ectrical switching bridge at the beginning of the key displacement. A variable resistor is adjusted depending on the travel of the key, thereby controlling device speed. In order to achieve an adjustment of the key end stop, a slide displaceable in the transverse direction is mounted on the key, which slide has a stop edge projecting in the longitudinal direction. A stop border is provided on the switch cover and configured relative to the travel of the slide so that the distance between the stop edge and the stop border varies according to the displaced position of the slide, thereby enabling operator control of the device speed.

Abstract: A diode type connector having at least one solid guide pin inserted through n insulated housing, the pin having a front plug portion and a rear section for connection to a strand of a cable, the rear section having an axial concentric bore and a lateral slot located within the bore, and a connector terminal part having a connector part extending rearward for crimping onto the cable strand and a sleeve-like contact spring part having a length about that of the pin rear section and extending forward from engaging the pin rear section. The cable strand can either be soldered directly into the bore, or connected to the pin with the connector terminal part.

Abstract: A plurality of switching points are connected in groups to respective teral contact points via conductor strips on a keyboard printer circuit film. In order to achieve suppression of the coupling capacitances with simple means, decoupling resistor strips are printed between adjacent pairs of the conductor strips and are connected with the said conductor strips. The decoupling resistor strips consist of the same carbon resistor layer material as the terminal contact points.

Abstract: A control unit for setting heating, air conditioning and/or ventilation in otor vehicles is provided. The control unit comprises a body adaptable for insertion into the instrument panel of a motor vehicle, said body having a front panel and a rear carrier member. At least one control knob, by means of which a driving bevel gear connected with it drives at least one driven bevel gear, is rotatably mounted in the front panel. An elongated adjusting lever which swings over a limited range cooperates with the driven bevel to actuate a Bowden cable, which in turn is capable of controlling heating, air conditioning or ventilation systems, particularly flaps in the system which control air flow.

Abstract: The invention pertains to a control unit, especially for setting heating, oling and/or ventilation systems in motor vehicles. Sliding members are guided between two end positions in an oblong body. Setting members, e.g., louvers or motors, are adjusted by means of these sliding members via transmission means. A step-down unit is provided as the transmission means, which consists of a first toothed rack molded onto the sliding member and of a second toothed rack molded onto the body, and a gear which is mounted rotatably between the two toothed racks and moved when the sliding member is moved. The gear is connected to an adjusting means, e.g., a rod, which in turn operates the setting member.

Abstract: A flexible carrier film with a printed circuit thereon is provided in comation with a terminal device which provides a plurality of terminal connection pins. A first part of the printed circuit contains a plurality of conductors, and a second part contains a plurality of resistor strips for supplying voltage levels to each conductor. In order to connect the first and second parts without crossings, a grid of connection strips is provided between the conductor strips and resistor strips and connected thereto. The film is bent along a score line extending through the grid and at a right angle thereto, with the conductor strips and resistor strips located on the outside of the folded film. The film is then clamped to the terminal device at the score line so that each connection strip is clamped on both sides of the score line.

Abstract: An improved key for typing keyboards or other terminal keyboards, which is ubstantially larger than the other keys and large compared with the contact to be actuated. In order to avoid tilting during out-of-center pressing, two shears are provided as a guiding means between the mobile and the immobile key parts. The shears are comprised of two frame parts pivoted about axes which are held aligned flush with each other. The shear arms provide four support points at their top free ends which enclose a rectangular surface which is practically congruent with the touch surface.

Abstract: A socket terminal strip is provided for receiving a complementary plug st provided with knife contact pins. The socket terminal strip has an insulating body in whose chambers contact members are arranged. A row of webs extending crosswise is positioned longitudinally on the back side, which webs are separated from each other by incisions, so that a chamber-like arrangement is formed. In order to provide for increased connection possibilities with different contact assignment for the same number of contacts, a row of webs and incisions is provided on each of the two longitudinal edges on the back side of the insulating body, which webs and incisions are staggered. An incision of the second row is thus opposite to a corresponding web of the first row, and a web of the second row is opposite to a corresponding incision of the first row.

Abstract: An x-y position detector is shown which comprises a pen and contact plate with a resistive layer formed thereon. Point electrodes are provided on the four sides of the resistive layer. The materials of the resistive layer and the pen are selected such that the pen is in reliable galvanic contact with the resistive layer. The resistive layer is hard and smooth, and permits easy motion of the pen.The resistive layer consists of carrier particles with a hardness of between 5 and 9 on the Mohs hardness scale, pyrolytically coated with carbon and embedded in a binder whereby the resistive layer is hard and enables easy motion of the pen. The surface on which the pen moves is formed by molding the resistive material on a smooth intermediate substrate.

Abstract: A thick-film capacitor and a printed circuit are described, this capacitor being designed for implementation by printed-circuit technology, while the printed circuit contains capacitors of this type, together with the associated conducting paths.The capacitor dielectric comprises a screen-printable dispersion of dielectric filler substances in a polymeric material which can be cured at comparatively low temperatures, especially a polymeric resin from the group comprising polyurethane resins, polyester resins, epoxy resins and melamine formaldehyde resins. The use of a dielectric of this type enables lower curing temperatures to be used, in the region of approximately 200.degree. C., in contrast to conventional designs of thick-film capacitors with a dielectric containing a glass or ceramic frit, which require firing temperatures of the order of 1,000.degree. C.

Abstract: A bonding assistant for a support material consists of an organic binder ch comprises a mixture of a saturated polyester and an isophorone diisocyanate containing masked isocyanate groups apart from OH groups, said mixture being present in a proportion of from 50 to 80 percent by weight of the total mixture, the binder having filler particles of a particle size less than 15 .mu.m dispersed therein in a proportion of from 10 to 50 percent by weight.

Abstract: A multipole edge connector for the electrical connection of strip contact rfaces of a flexible flat ribbon cable with the congruent edge contact surfaces of a printed circuit board having the same modular dimensions. The edge connector consists of a clamp-like holder which is fastened with holding means in the form of barbs on the edge of the printed circuit board, and which has a plurality of flexible tongues. To permit the preparation of the holder at low cost, it comprises two members which are cut off from two different metal strips with pre-punched and pre-embossed profiles, which members are joined together by welding in a perforated zone. The members are profiled to provide a cross section with a half-tulip-shaped, asymmetric clamping contour, whereby each of the flexible tongues provides a uniform contact pressure.

Abstract: A keyboard comprising a flexible-foil printed circuit in which an insulat foil or sheet substrate is provided with printed conductors and contact surfaces, in which the insulating foil sheet is provided with holes, and which includes a plurality of press buttons or keys associated with the contact surfaces, each key comprising an elastically deformable snap-action element which is adapted to be deformed upon actuation by means of an actuating button in order to bring the contact element into contact with the contact surface.The flexible-foil printed circuit comprises an insulating foil substrate having a thickness not exceeding 0.6 mm which is provided on both sides with printed conductors and on one side with electrical contact surfaces and/or contact elements. The conductors may be formed in separate printing steps for each side of the foil or sheet. Contacts extending through the holes in the substrate may be produced by means of the printing step itself during the printing of the conductors.

Abstract: Contactlessly operating detectors which are accommodated in a casing provided with a window and which exploit the pyroelectric effect (FIG. 1) are being increasingly used for radiation and temperature measurement. In particular for applications in the infrared range of the spectrum, the manufacture of a suitable absorption layer causes difficulties in achieving the necessary adhesion properties. The absorption layer must have a high degree of adhesion and bonding brought about by gluing, soldering or welding. For this purpose it is proposed that the layer be very thin and comprise a chemically resistant, electrically conductive compound of metals and their oxides such as tin and tin-oxide or silicon and silicon oxide. In addition, these layers are characterized by a degree of surface roughness which is approximately equal to or higher than the wavelength of the radiation to be absorbed.

Abstract: In a keyboard comprising keys (1) arranged in recesses of a supporting pl (2) and electric contacts of a contact plate (6) disposed below the keys (1) a tilting axis is provided between the key (1) and the supporting plate (2). In order to ensure symmetrical switching behavior a tilting axis is provided on both sides of the key (1). The tilting axes are formed by corners (4, 5) which are abutted at an obtuse angle (W2) by the key (1).

Abstract: An automatic pig-charging apparatus for hot-chamber pressure-diecasting machines is described, which enable small parts to be manufactured e.g., a Zamak alloy especially under mass production conditions. Excessive fluctuations of the level of the liquid metal melt have prove to have disadvantageous effects on the quality of small parts, and on the service lives of the pressure-diecasting machines and dies. The aim must accordingly be to minimize the fluctuations. The present invention provides a control system, which keeps the liquid metal level within narrow limits. A float switch automatically triggers a charging operation whenever the lower liquid metal level is reached. This operation involves the automatic replenishment of the liquid metal melt by addition of pigs supplied from a replenishing station.

Abstract: A process for the manufacture of a contact mat suitable for a keyboard or ypad is described. This contact mat is produced by the injection-moulding process and consists of a sheet-like composite body made of an electrically non-conductive two-component silicone rubber, and at least one carrier part, which is elastically deformable when pressure is applied to a key and is moulded out in the shape of a calotte. On the inside of the carrier part and in the pole region, there is a contact component which is made of an electrically highly conductive material. When the carrier part is depressed, an electrical connection is made via the contact component between the contact surfaces of a printed circuit located below the contact mat. In order to be able to manufacture the contact component in a simple manner and without waste, the contact component is made in an injection mould, wherein the entire lower mould part is at a temperature above the vulcanization temperature of the contact component.