Elevators Fig / Western Union / John Wiley & Sons / /
Facility
Basement What / New York Western Union Building / Empire State Building / /
IndustryTerm
car trailers / car rises / Elevator car / stored energy / control equipment / car cable / cm steel rod / occupied car / kinetic energy / overall gravitational potential energy / elevator operator / long metal shaft / safety devices / considerable pressure potential energy / similar tools / speed-sensing device / machinery / thick metal jackscrew / car stops / thermal energy / elevator car move / metal cables / car level / car moves / safety device / automatic leveling systems / steel made skyscrapers / simplest lifting devices / empty car / electric energy / jackscrews so useful in lifting devices / long metal cable / empty elevator car / control machinery / gravitational potential energy / shiny metal piston / energy / /
Lift cables Vertical speed sensor