Abstract: In a push-pull type latching control button, in particular a button for operating an electrical component, a main plunger of the control button is associated with an auxiliary plunger through which a shank of a control member can actuate the main plunger. Like the main plunger, the auxiliary plunger is releasably retained by a latching arrangement. An elastic spreader arrangement is provided between the main plunger and the auxiliary plunger. The elastic spreader arrangement also constitutes a return spring arrangement associated with the control member.

Abstract: A balloon with an internal corner reflector for radio waves is built with the reflecting plane of the reflector freely suspended from a cord frame system which is only secured in the points of suspension. The reflector is suspended inside a balloon which is composed of single flat pieces of a resilient material. Manufacture of the reflector balloon may substantially be done in one plane and the balloon primarily envelopes the reflector very tightly. The suspension utilizes the resiliency of the balloon corners. Balloons which are observed from below may have four internal corners with downwards facing openings and may also be designed to provide rotation.

Abstract: The electrical apparatus, for example a switching device includes an enclosure (2), elements (62, 64, 66) for mounting it accordingly to at least two mounting methods, and connection blocks (8, 10) attached to the enclosure (2) and which can be moved in such a way that the screws (56) are accessible for clamping the connection wires (60) from the front or from the rear of the apparatus. The flexible hooking lugs (64, 66) which are used for the rail mounting (68) are secured by the connection blocks (8, 10) in their rear position. Moving the connection blocks (8, 10) ensures that the openings giving access to the unused clamping screws (68) are blocked out.

Abstract: A multipolar rotary switch, in particular a cam switch, is constituted by a stack of wafers with the contact elements and the connection elements being received in chambers lying between end walls and intermediate walls. The end walls and the intermediate walls are provided in the form of molded parts (16) of thermoplastic material and these parts are mechanically assembled to one another and are rigidly fixed together. The molded parts (16) have lugs (50) which, during assembly, overlap the sides of the adjacent molded parts and latch behind projections (62) provided thereon. After latching, the lugs (50) are welded to the side walls of the molded parts (16) in order to provide an assembly which is rigid.

Abstract: The rotary switch consists of a plurality of switch decks and is designed to be mounted on a support (2) by a mounting plate (3). At one of its ends it is operated by a control shaft (4) which actuates contacts by cams (5) located in switch modules (9,10). The moving members of a plurality of electrical contacts are also located in the modules stacked about the control shaft. The switch body is provided with two through holes (13, 14) aligned with the axis of the control shaft (4). One of the holes goes through the mounting plate (3) and the other through an end plate (12), at the opposite end of the switch from the mounting plate. Each through hole allows the shaft to rotate therein as required. The mounting plate (3) and end plate (12) includes a ring recess (15 or 16) for ring (17) serving to limit the angle of shaft rotation. One of the through holes includes a lock (19) for locking against axial movement the assembly formed by the shaft and the cams it controls.