Unit 1 Flashcards
Where is the toe guard (apron) located?
Car assembly
What is the main advantage of the traction elevator as compared to the drum type elevator?
No height restriction, 2 speed, smoother
What component is used to join two sections of guard rails?
Fish plate
Where is the drive machine typically located for MRL elevators?
Inside hoistway
How long have elevators been in existence?
2000’s of years, 236 BC
What type of elevating device typically only moves horizontally?
Moving walks
Why are MRL elevators installed?
To save room
What was the greatest contribution made by Elisha Otis to the development of the “modern” elevator?
First safety device (1853-1854)
Where is the direct acting hydraulic jack assembly located?
In the pitt
Who is credited with developing the first recorded elevator in history?
Archimedes in 236 BC
What type of machine is limited to low-rise applications?
Winding drum machine
Who developed an electric elevator using the first direct-connected geared system?
Norton Otis
Where are roller guides located?
Car assembly
What type of elevator is used for speeds above 500 feet per minute?
Gearless traction
Where may a buffer be located?
In the pit
