Sean Warden Drafting Bdays How do escalators work A pair of rotating chain loops pull a series of stairs in a constant cycle Electric Motor turns Drive gears that turn the chains Collapses the steps as they get closer to the topbottom ID: 575447
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Slide1
Escalators
Sean WardenDrafting B-daysSlide2
How do escalators work?
A pair of rotating chain loops pull a series of stairs in a constant cycle
Electric Motor turns Drive gears that turn the chains
Collapses the steps as they get closer to the top/bottomSlide3
Timeline of the escalator
Jesse Reno 1859
Endless Conveyer
Patent1892
Charles
Seesberger
Trademarks “Escalator”
1897Slide4
Railing
Two wheeled pulley
Steel, cotton, synthetic polymer, rubberSlide5
What is a Pulley?
Wheel and axle supporting movementEasier to transfer energy
To move heavier masses, its pulled fatherSlide6
Works Cited
"How Escalators Work." HowStuffWorks. HowStuffWorks.com, n.d. Web. 19 Mar. 2016.
“The History of the Escalator.”inventors.about.com, n.d. Web. 19 Mar. 2016.
“Escalators.”www.madehow.com/, n.d. Web. 19 Mar. 2016.
“Pulleys.” www.explainthatstuff., n.d. Web. 19 Mar. 2016.