{"product_id":"2940013158528","title":"Elevator Systems of the Eiffel Tower, 1889 [Illustrated]","description":"This edition features\u003cbr\u003e • a linked Table of Contents and linked Footnotes\u003cbr\u003e • 42 illustrations\u003cbr\u003e \u003cbr\u003eThis article traces the evolution of the powered passenger elevator from its initial development in the mid-19th century to the installation of the three separate elevator systems in the Eiffel Tower in 1889. The design of the Tower’s elevators involved problems of capacity, length of rise, and safety far greater than any previously encountered in the field; and the equipment that resulted was the first capable of meeting the conditions of vertical transportation found in the just emerging skyscraper.\u003cbr\u003e\u003cbr\u003eCONTENTS\u003cbr\u003ePREPARATORY WORK FOR THE TOWER   \u003cbr\u003eTHE TOWER’S STRUCTURAL RATIONALE   \u003cbr\u003eELEVATOR DEVELOPMENT BEFORE THE TOWER   \u003cbr\u003eTHE TOWER’S ELEVATORS   \u003cbr\u003eEPILOGUE","brand":"VolumesOfValue","offers":[{"title":"Default Title","offer_id":47147462656240,"sku":"2940013158528","price":2.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013158528_p0.jpg?v=1763577752","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013158528","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}