Apprentice Niles Tool Works, 1881-1884. Designer and experimenter, Edison’s laboratory and phonograph works, Orange, New Jersey, 1888. In charge of electric railway and lighting plant construction, Western Engineering Company and Edison General Company, 1889-1890.
Superintendent mechanic department, 1890-1901. Professor mechanic arts, 1901-1902, University of Tennessee. Professor machine design, University of Wisconsin, 1892-1899.
Professor drawing and machine design, Worcester Polytechnic Institute, 1899-1903. Professor machine design, Sibley College, Cornell, 1903-1905. President Manhattan Automobile School, New York, since 1905.
Designed machinery for phonograph manufacture and for putting high resistance insulation on wires, 1888. Visited the principal technical schools, and many of the commercial manufacturing establishments in England and on the continent to study their methods, giving special attention to gas and oil engines and gas producers for power purposes, 1902-1903.