When was the American entrepreneur and engineer died based on who's patent modern trains rely upon a fail-safe air brake system?
Railway air brake A railway air brake is a railway brake power braking system with compressed air as the operating medium. Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on March 5, 1868. The Westinghouse Air Brake Company (WABCO) was subsequently organized to manufacture and sell Westinghouse's invention. In various forms, it has been nearly universally adopted.
A. W. Haydon Arthur William Haydon (April 25, 1906– January 11, 1982) (known as A. W. or Bill Haydon) was an American inventor known for his work in the field of microminiature electrical timing and governing devices for industrial and military use, some of which were to be used in early computing devices.