An illustration of a double oscillating steam engine, created by Elisha Graves Otis (1811-1861) as a 'power plant' exclusively for elevators. Otis, an American, invented a safety device that prevented elevators from falling if the hoisting cable broke. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / SCIENCE SOURCE / New York Public Library |
Taille de l’image : | 4249 px × 4187 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |