Switch action star-delta switch by pulsation (Machine-translation by Google Translate, not legally binding)

摘要

A pulse-operated star-delta switch, essentially characterized in that the two movable bridges for the connection of the network with the two circuits of use, are supported by two insulating sliding pieces perpendicular to the respective flat connection terminals. of each circuit, and of the network, these forces being parallel to each other, being provided with own pushbuttons and being subjected to the reaction of springs that tend to lift them, separating them from the connection position; the buttons present ring-shaped sockets, in which the edges of sliding sliding pieces are locked on the lid of the system, perpendicular to the direction of pulsation; each of these pieces is driven by a spring of its own and antagonistic with that of the opposite piece; and because the unlocking or disconnection is achieved at the same time for the two bridge-holding parts by the simple thrust of a third tangent trunco-conical central push-button with raised ridges on both sliding parts. (Machine-translation by Google Translate, not legally binding)