Brown moved to New York in 1887 and worked as consultant for the New York and Westchester Railroad, Edison General Electric, and consulted on the development of the electric chair with Governor David B. Hill and the State of New York. He also did consulting work for the City of Newark, Dayton Ohio Buffalo Electric Rail Line, and the Louisville Electric Rail Line. Up through 1912 he invented and manufactured a plastic rail bond electric contact alloy and went on to invent and manufactured a method of applying concrete with compressed air or steam.