UN DISPOSITIVO DE HERMETICIDAD A MONTAR ENTRE PARTE GIRATO-RIA Y PARTE FIJA, PERFECCIONADO.

摘要

A shaft packing characterized in that it is capable of transmitting electric current, whether direct or alternating, from the fixed member to the rotary member; this possibility is particularly advantageous in case it is desired to control an electromagnetic device solid with the aforesaid rotary member.