Constructive disposition introduced in wedge brake and speed controller for the elevator works like rack and pinion, used in the civil construction

摘要

"Constructive disposition introduced in wedge brake and speed controller for the elevator works like rack and pinion, used in the civil construction".The new drive system of brake applied to elevators with pinion and rack drive type of passengers, cargo, and / or civil construction.With the drive of the brake system by centrifugal action, wedge and co speed variator.Which will make these elevators much safer for both freight and passenger transport.