Before revision: Unlike previous “on/off” techniques, Torres defined a method for controlling any mechanical or electrical device with different states of operation, being able to select different positions for the steering engine and different velocities for the propelling engine independently, acting over other mechanisms such a light, or a flag, at the same time,A.
After revision: Unlike previous “on/off” techniques, Torres defined a method for controlling any mechanical or electrical device with different states of operation, selectingand different positions for the steering engine and different velocities for the propelling engine independently, acting over other mechanisms such a light, or a flag, at the same time,A.