Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 136,261 pages of information and 218,941 images on early companies, their products and the people who designed and built them.
1881 George Westinghouse set up Union Switch and Signal, consolidating the assets of the Union Electric Signal Company and the Interlocking Switch and Signal Company.
Developed and commercialized George Westinghouse's ideas for railway signalling using compressed air and electricity
1890 brought out a new design of its buffer design called the Westinghouse double-acting friction buffer
1917 Became a subsidiary of the Westinghouse Air Brake Co