When was the American entrepreneur and engineer died based on who's patent modern trains rely upon a fail-safe air brake system?
George Westinghouse George Westinghouse Jr. (October 6, 1846 – March 12, 1914) was an American entrepreneur and engineer who invented the railway air brake and was a pioneer of the electrical industry, gaining his first patent at the age of 19. Based in Pittsburgh, Pennsylvania for much of his career, Westinghouse was one of Thomas Edison's main rivals in the early implementation of the American electricity system. Westinghouse's electricity distribution system, based on alternating current, ultimately prevailed over Edison's insistence on direct current. In 1911 Westinghouse received the AIEE's Edison Medal "For meritorious achievement in connection with the development of the alternating current system."
William Woodnut Griscom William Woodnut Griscom (1851–1897) was an American inventor responsible for introducing electric motors for the purpose of marine propulsion. With some 40 patents to his name, Griscom also founded the Electro-Dynamic Company in 1880, based in Philadelphia. Much information in regards to Electro-Dynamic Company (and its origins) has not been made altogether clear. In 1892, Isaac Rice bailed Electro-Dynamic out following a bankruptcy and became a co-owner. Two years after Griscom died in an 1897 hunting accident, his company was acquired by Rice's new Electric Boat Company. He was awarded the John Scott Medal of The Franklin Institute in 1882. He is buried at the Church of the Redeemer Cemetery in Bryn Mawr, Pennsylvania.