The Free Dictionary  
mailing list For webmasters
Welcome Guest Forum Search | Active Topics | Members

Elisha Graves Otis (1811) Options
Daemon
Posted: Thursday, August 03, 2017 12:00:00 AM
Rank: Advanced Member

Joined: 3/7/2009
Posts: 21,677
Neurons: 65,034
Location: Inside Farlex computers
Elisha Graves Otis (1811)

By 1852, Otis had already devised several inventions, including a safety brake for trains. While setting up a factory that year, he developed an automatic safety device to prevent heavy machinery from falling if a rope broke while the machinery was being hoisted. The first fail-safe, fall-safe passenger elevator quickly followed. It made possible the construction of skyscrapers, greatly altering the landscape of modern cities. What daring publicity stunt helped launch sales of Otis's elevators? More...
KSPavan
Posted: Thursday, August 03, 2017 1:56:59 AM

Rank: Advanced Member

Joined: 1/28/2015
Posts: 1,747
Neurons: 1,902,977
Location: Kolkata, Bengal, India
Today's Birthday
Elisha Graves Otis (1811)
By 1852, Otis had already devised several inventions, including a safety brake for trains. While setting up a factory that year, he developed an automatic safety device to prevent heavy machinery from falling if a rope broke while the machinery was being hoisted. The first fail-safe, fall-safe passenger elevator quickly followed. It made possible the construction of skyscrapers, greatly altering the landscape of modern cities.
Users browsing this topic
Guest


Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Main Forum RSS : RSS
Forum Terms and Guidelines. Copyright © 2008-2017 Farlex, Inc. All rights reserved.