Abstract: A releasable mounting device includes an electronic component having terminal contact surfaces disposed in at least two rows on an outer side. Corresponding contacts of a terminal part are correspondingly disposed in two contact rows. The contacts of each contact row can be moved jointly away from the outer side by an actuating element. During a mounting operation, the contact rows of the terminal part, which are located one behind the other as seen in a mounting direction, are moved away from the outer side one after the other by the component, beginning with a front contact row. When an end mounting position is reached, the contact rows of the terminal part pass into electrical contact with the terminal contact surfaces.

Abstract: A detachable connecting system includes a component and a mount having cooperating guides which effect a defined movement of the component in a mounting direction into a connecting position when a connection is established. An underside of the component has a locking element which engages another corresponding locking element in the connecting position. The other locking element is disposed at a free end of a resilient tongue disposed below the component. In the connecting position, an actuation region of the free end of the tongue is accessible from a front end of the component.

Abstract: An electrical unit includes a printed circuit board having a multi-pole plug and a main board having body edges and a plug to be connected to the multi-pole plug in a plug connection. A frame for receiving the printed circuit board has opposed sides and catch lugs being disposed on the opposed sides. The catch lugs have catch elements and the catch lugs are elastically deformed by the body edges upon connection of the plug of the main board to the multi-pole plug. A release lever is supported on the frame and has at least one pressure surface to be pivoted out of a connected position in which the catch elements are latched fixingly to the main board and into a release position in which the at least one pressure surface is braced against the main board for generating a force to undo the plug connection.

Abstract: A spring element is arranged in the housing of an electro-optical module such as to cover the active surface of an electro-optical component such as a laser diode when in its rest position. When a connecting element is introduced through an opening in the housing the spring element is deflected against the restoring force of the spring into a position in which it frees the active surface.

Abstract: A method for assembling a light wave guide switch calls for a switch having two groups of front ends of light wave guides. Each group of front ends faces the other group of front ends and each group is disposed on opposite sides of a coupling plane running perpendicular to the longitudinal axes of the light wave guides. The switch also has centering devices that extend parallel to each other, without offset, from a first end of a base plate to a second end of the base plate. The centering devices secure a plurality of light wave guides each extending through the coupling plane when each of the wave guides forms a single component. The method includes the steps of coupling the first end of the base plate to a stationary part of the switch and coupling a second end of the base plate to a drivable part of the switch while the switch is in the given switching position.

Abstract: An optical waveguide connector consists of a ceramic pin (11) with a bore (12) for the bare optical waveguide (7). In the superimposed abutment (14) for a compression spring (25), two bore sections (16, 17) are provided whose diameter corresponds to that of the optical waveguide with a coating (8) and with a jacket (9), relatively. The precise guidance of the optical waveguide so obtained in all sections minimizes the likelihood of sharp bends.

Abstract: A method for securely fixing optical waveguide leads to a connector includes particular steps to ensure that the connection between the connector and the waveguide leads is reliable. First, a winching procedure is utilized before attaching the waveguide lead containing cable to the connector. The winching procedure removes any excess length, i.e., slack, in the cable components that are used to absorb high tension stress. In the second step, after inserting the optical waveguide leads in an elastic positioning member and compressing the positioning member to arrest the leads and thereby form crescent-shaped cavities between the waveguide leads and the positioning member, the cavities are filled with a quick-hardening glue.

Abstract: In a flat housing (10) a stator (12) is concentrically arranged relative to an input shaft (16) supported in the housing (10). A rotor (14) is seated on the input shaft (16). A reducing gear (18) constructed as a play-free planetary gear is arranged within the flat housing (10) in an annular space (20) formed between the rotor (14) and the input shaft (16). The signal processing circuit is also accommodated in an annular space (60) within the housing (10). The input shaft (16) can be rotated through 360.degree. or more. During such rotation, the rotor (14) performs a rotational movement through a limited angle within which there is obtained a substantially linear angle signal due to the cooperation of the rotor (14) and the stator (12).

Abstract: At a control signal generator for generating a pair of control signals by means of a control stick (10) deflectable in two directions a disc (22) is attached to the control stick (10) about its pivot mounting (12). Approach sensors (18) are located in a base portion (10) and respond to the motion of the disc (22) about the pivotal point (14) of the control stick (10). This results in a compact arrangement with contactless pick-offs, which are not subject to wear and which cannot be mechanically damaged even with rude operation.

Abstract: A slider for resistor or slip conductors. The slider includes a generally U-shaped slider support having a center portion and two legs, leaf springs attached to each one of the legs and extending into the interior of the U-shaped slider support, and contact means guided by the leaf springs and kept in engagement with the resistor or slip conductor. In accordance with the invention, one of the leaf springs supports the contact means, and the other leaf spring resiliently engages the first leaf spring on the side remote from the resistor or slip conductor.

Abstract: The continuous refining of molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. The molten metal and the slag are conveyed as two separate non-intermingled streams through the refining stage spaces, as distinguished from a slag-metal emulsion. The slag in the second refining stage space is caused continuously to flow back into the first refining stage space to form a slag layer on the molten metal in the first refining stage space. Refining gas is blown into the molten metal in the first refining stage space below the slag layer, and the molten metal is conveyed from the first refining stage space to the second refining stage space while preventing the flow of slag from the first refining stage space to the second refining stage space.

Abstract: A slider arrangement for potentiometers is presented, which provides good contact between the potentiometer resistor and the slider with low friction and low wear. With each position of slider guide means, the slider contacts the potentiometer resistor in an associated well defined point regardless of the direction of movement of the guide means. To this end the slider comprises a wire helix in crossed relation to the potentiometer resistor. The wire helix is urged into engagement with the potentiometer resistor by a strap extending into the wire helix and engaging the inner side thereof under spring tension, whereby engagement between helix and strap and the required contact pressure between helix and potentiometer resistor is established. The strap has bays or recesses in the area of the potentiometer resistor to permit the turns of the wire helix to conform to the cross sectional contour of the resistor.

Abstract: The disclosed process of continuously refining molten metal is carried out in a refining apparatus having communicating first and second refining stage spaces. Refining gas, such as oxygen, is blown into the molten metal in the presence of a slag layer on the molten metal. The molten metal and the slag are conveyed as two separate non-intermingled streams through the refining stage spaces, as distinguished from a slag-metal emulsion. The slag in the second refining stage space is caused continuously to flow back into the first refining stage space to form a slag layer on the molten metal in the first refining stage space. Refining gas is blown into the molten metal in the first refining stage space below said slag layer, and the molten metal is conveyed from said first refining stage space to said second refining stage space while preventing the flow of slag from said first refining stage space to said second refining stage space.