Oliver Evans (13 September 1755 – 15 April 1819) was an American inventor. Evans was born in Newport, Delaware to a family of Welsh settlers. At the age of 14 he was apprenticed to a wheelwright.
Evans' first invention was in 1777, when he designed a machine for making card teeth for carding wool. He went into business with his brothers and produced a number of improvements in the textile industry. His most important invention was an automated gr...
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Oliver Evans (13 September 1755 – 15 April 1819) was an American inventor. Evans was born in Newport, Delaware to a family of Welsh settlers. At the age of 14 he was apprenticed to a wheelwright.
Evans' first invention was in 1777, when he designed a machine for making card teeth for carding wool. He went into business with his brothers and produced a number of improvements in the textile industry. His most important invention was an automated grist mill which operated continuously through the use of bulk material handling devices including bucket elevators, conveyor belts, and Archimedean screws. Evans described this invention in The Young Mill-wright and Millers' Guide. He patented this invention in a few states and, when the US patent system was established, in the federal patent system. Evans devoted a great deal of his time to patents, patent extensions, and enforcement of his patents.
In 1792 he moved to Philadelphia, Pennsylvania.
He produced an improved high-pressure steam...
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