On Sept. 20, 1853, Elisha Graves Otis sold his first “hoist machine,” or elevator, featuring an automatic safety brake he had patented. His seemingly simple invention was designed to stop a platform ...
Picture this: a packed hall in New Yorks Crystal Palace in 1854. At the centre of attention was a man standing on a wooden platform high above the crowd. With a single dramatic gesture, he instructed ...
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