Oliver Evans' Firecracker
Numéro d’image : 11639187
| Demonstration by Oliver Evans of the explosive power of steam produced by boiling water in a stoppered gun barrel heated in the blacksmith's forge. The stopper is ejected with a loud report like a firecracker. Oliver Evans (1755-1819),the American inventor and engineer,had been greatly impressed by this when he was 17 years old and foresaw the application of high-pressure steam to a revolutionary design of steam engine. At that time,low-pressure steam engines prevailed as many thought high pressure too dangerous. Though a wheelwright,he had shown inventive genius and had obtained a patent for a steam carriage in 1797. In 1803-4 he built two successful steam engines. These,with Trevithick's engine built at the same time,were the first high-pressure engines. He built the first fully automated flour mill and invented a machine for making card teeth for carding wool | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Terry, Sheila |
| Taille de l’image : | 4841 px × 3610 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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