History of Elevators Flashcards
Early rope hydraulic elevators could operate at speeds up to:
700 ft/min
During the Industrial Revolution, the improvement in lifting devices including elevators were closely related to:
All of the above (Steam Engine, Electric Motor, Wire Rope)
Early hydraulic elevators were made practical by
The “U” leather packing
The first person to demonstrate the elevator “Safety” was
Elisha Otis
The person credited with development of practical wire rope was
John Roebling
In 1887, William Baxter is credited with installing _____ in Baltimore
Electric Elevator
The first fully automatic elevators were installed in the mid ______
1950s
The first flat-step escalator was exhibited in Paris in 1900 and later returned to the U.S. and installed in
Gimble Brothers Store in Philadelphia
The first person to patent a moving incline ramp was
Jesse Reno
The first ASME Elevator Code was published in
1921
The ASME A17.1 Safety Code for Elevators and Escalators is published
Every three years, with annual addenda
The oldest known hoisting machine still in existence is located in which country
France
_________ is the name of the system introduced in the 1870s that would stop and hold the elevator if the speed exceeded a predetermined rate for any reason.
Overspeed governor and safety system
The electric motor replaced ______ as the power source for elevators. This innovation led to the commercial use of elevators.
Steam
The liquid in modern hydraulic elevators is usually
Oil
