Carl Christopher Wølner Hansen

According to the book, “Saga In Steel And Concrete - Norwegian Engineers in America," by Kenneth Bjork, "Charles C. Hansen had been a mechanical engineer with Ingersoll Rand Company of Phillpsburg, New Jersey (USA) for 35 years when he died in 1938. He is credited with over 100 patents on compressed-air tools and other drilling equipment. Hansen studied at the Norwegian university and at the technical schools of Berlin and Zurich, becoming a specialist in marine engineering. After spending several years in the early 1890s along the Canadian side of the Great Lakes, he was employed on the New York Barge Canal. Later he was associated with a firm manufacturing Corliss steam engines used to drive air compressors, and in went to Ingersoll-Rand in 1903 and assisted in the construction of their Phillsburg plant. When transferred to the rock drilling engineering department Hansen was put to work perfecting tools used extensively for mining and canal construction. He designed, among other most of the drills used on the Panama Canal and New York canals.”