Chapter 1: History Of Elevators Flashcards
Early rope hydraulic elevators could operate at speeds up to?
700ft/min.
During the Industrial Revolution, the improvement in lifting devices including elevators were closely related to?
A) Steam engine
B) Electric motor
C) wire rope
D) all of the above
Early hydraulic elevators were made practical by?
The “U” leather packing
The first person to demonstrate the elevator “safety” was?
Elisha Ottis
The person credited with the development of practical wire rope was?
John Roebling
In 1887 William Baxter is credited with installing the first _______ in Baltimore
Electric Elevator
The first fully automatic elevators were installed in the mid _____
1950’s
The first person to patent a moving incline ramp was who?
Jesse Reno
The first ASME elevator code was published in what year?
1921
The first flat-step escalator was exhibited in Paris in 1900 and later returned to the US and installed where?
Gimble brothers store in Philadelphia
The ASME A17.1 Safety Code for Elevators and Escalators” is published how often?
Every 3 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 1870’s 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
