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Makers of automatic braking system for railways, of London
1869 The Westinghouse Air Brake Company was established in the USA
1872 The Westinghouse Continuous Brake Co. was established.
1873 The Westinghouse automatic vacuum brake was patented
1875 Responding to the interest in vacuum brakes, Westinghouse also developed a system for working brakes by vacuum, emphasising the importance of a continuous braking system between all of the vehicles in a train
1875 Tests of the various braking systems were conducted on the Midland Railway using a specially equipped train under the supervision of Mr Edward Woods CE; the various brakes were supported by different railway companies:
Most of these systems were continuous brakes (which acted on brakes throughout the train) but several were not fail-safe. The Westinghouse automatic (air-pressure) brake was judged to be the most efficient
1876 The North British Railway organised a series of trials between Westinghouse's automatic air-brake and Smith's vacuum brake supplied by the Vacuum Co which demonstrated the advantages of the air-brake.
1878 George Westinghouse of the Westinghouse Continuous Brake Co wrote a letter in The Engineer describing the usage of his continuous brake on various European railways and proposed that the question of the efficiency of the various brake systems available could best be settled by running trains fitted with the different systems side by side on parallel lines, something he offered to facilitate.
By 1880, 37,000 sets of Westinghouse apparatus had been supplied to railways around the world.
1881 Public company. The Westinghouse Brake Co was registered on 7 November. 
1894 Antwerp Exhibition. Train braking systems. (Westinghouse Brake Co). 
1894 Antwerp Exhibition. Awarded Grand Prix Diploma for Railway Plant. (Westinghouse Brake Co). .
1899 The Westinghouse Brake Co in conjunction with Messrs McKenzie and Holland was the first to introduce power signalling into Great Britain with the installation at Bishopsgate Street station on the Great Eastern Railway.
1907 Separate company formed to carry on the power signalling business: McKenzie, Holland and Westinghouse Power Signal Co which equipped the whole of the underground railways of London with power operated automatic signalling.
By 1910, 3 million sets of Westinghouse brake apparatus had been supplied to railways around the world.
1913-1917 For a list of the models and prices of Marine Motors see the 1917 Red Book under the Westinghouse-Cross name.
1920 Recognising the interdependence of effective braking and signalling in train safety, Westinghouse Brake Company acquired certain assets of the Consolidated Signal Co. By these means, Westinghouse Brake secured controlling interests in the signal manufacturing concerns of:
The name of the company was changed to Westinghouse Brake and Saxby Signal Co.