Simon Ingersoll

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Simon Ingersoll (March 3, 1818 – July 24, 1894) was an American inventor who created the steam-powered percussion rock drill, which replaced the hand drill and was a major advancement in the mining and construction industries.[1][2]

Ingersoll was born in Stanwich, Connecticut.[2] He was a farmer, and in his spare time an inventor.[2] Based on his percussion drill, in 1871 he founded the Ingersoll Rock Drill Company, a predecessor of today's Ingersoll Rand.[2][3] Simon Ingersoll later sold his patents and died destitute in 1894.[2]


  1. ^ "Simon Ingersoll". National Inventors Hall of Fame. Retrieved 6 December 2017.
  2. ^ a b c d e Mahmud, Arshad. "Simon Ingersoll". The American Society of Mechanical Engineers. Retrieved 6 December 2017.
  3. ^ "Daniel Russell - The Ingersoll Rock Drill". Manufacturer and Builder Magazine. July 1879. Retrieved 5 December 2017.

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