Jonathan Latham

2 months ago | elevatorworld.com | TK Elevator |David Steingass |Jonathan Latham |David Guerin

Most of the components of an elevator system, including door systems, have evolved over the decades to improve both cost and reliability. Door systems continue to be one of the highest proportions of total installed cost: material, labor for installation and service trouble calls. More attention is deserved. In elevators’ early days, the opening and closing of doors was done with an arm, i.e., the bone/flesh/muscle and connective tissue of a human attendant moving a collapsible gate.