Wave switch selector perfected. (Machine-translation by Google Translate, not legally binding)

摘要

Improved wave switching selector, characterized in that it comprises a disk of solid insulating material with which there is a control shaft on which an external threaded bushing is slidably disposed for fixing it to the housing of the apparatus whose insulating disk of considerable section has a plurality of cavities disposed circularly around said axis inside which are arranged flat metal pieces bent in a u-shape and whose lateral branches pass through the corresponding grooves located in the bottom of said cavities so that their free protruding ends are applied on a double circular system of contacts opposite the corresponding terminals that are arranged in two concentric circular lines arranged in a fixed insulating plate, each of these systems being traversed by one of the legs or free ends of each u which are pushed outwards by means of the coil springs which are disposed inside said housings in which they are retained by an equally insulating disk applied against the underside of said rotary disk. (Machine-translation by Google Translate, not legally binding)