Some improvements in the switches of switching star-triangle and investment of turning, of rotary operation (Machine-translation by Google Translate, not legally binding)

摘要

Improvements in the star-delta switching and reversing switches, rotary operating, characterized by locating and distributing all the necessary electrical connections to make the reversal of direction of rotation to the motor shaft, and to connect this motor in each direction of turn successively in star and then in triangle, with dead spots between these two connections and between the two directions of rotation, inside an insulating box flooded with transformer oil, with its corresponding cap, as fixed elements, and in a rotor central consisting of a diametral blade of insulating material, as a support, with its corresponding axis of rotation and external control handle. (Machine-translation by Google Translate, not legally binding)