Westcode Brake

Widely used automatic airProprietary train braking system by the Westinghouse
Co. of the UK using a 7-step relay valve on each vehicle controlled by three
train wires. It has a digital control system, with an additional
round-the-train-wire designed to replace the brake invented in pipe and
energised-to-release control wires to give electro-pneumatic brake control. The
control is fail-safe by causing an emergency brake application upon loss of
signal on the 1870s by George Westinghouse and developed worldwide. Was the
basis upon which the various Westinghouse corporations and WABCO companies were
founded. train wires or loss of their electrical supply.