trezor.io
Rate this file (Rating : 5 / 5 with 1 votes)
Creative elevators
trezor.io

Creative Elevators

The first electric elevator was built by Werner von Siemens in 1880. The safety and speed of electric elevators were significantly enhanced by Frank Sprague. The inventor Anton Freissler developed the ideas of von Siemens and built up a successful enterprise in Austria-Hungary.
The development of elevators was led by the need for movement of raw materials including coal and lumber from hillsides. The technology developed by these industries and the introduction of steel beam construction worked together to provide the passenger and freight elevators in use today.
In 1874, J.W. Meaker patented a method which permitted elevator doors to open and close safely. U.S. Patent 147,853
In 1882, when hydraulic power was a well established technology, a company later named the London Hydraulic Power Company was formed. It constructed a network of high pressure mains on both sides of the Thames which, ultimately, extended to 184 miles and powered some 8,000 machines, predominantly lifts (elevators) and cranes.

File information
Filename:130761.jpg
Album name:Architecture & Design
Rating (1 votes):55555
Keywords:#creative #elevators
Filesize:58 KiB
Date added:Jun 09, 2009
Dimensions:420 x 566 pixels
Displayed:11 times
URL:displayimage.php?pid=130761
Favorites:Add to Favorites