Improvements introduced in the object of the main patent number 0278689; granted by: 'improvements in operating mechanisms for elevators'. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the object of the main patent number 278689; granted by: "Improvements in drive mechanisms for lifts", characterized in that the displacement is carried out by screws of large pitch and small diameter, whose fillets rotate with respect to the cabin, and slip by sliding or by rolling, on fixed supports or rollers, arranged in the elevator housing, which produce the raising or lowering of the cabin; going said box driven by vertical guides, which supports two sets of wheels, perpendicular to each other, and the screws coupled directly or indirectly to the engine. (Machine-translation by Google Translate, not legally binding)