Several years later, Siemens announced that it planned to merge its rail assets, including the former Westinghouse Signal business, with Alstom.

There were also factories in Kingswood, Bristol (Douglas Ltd – formerly Douglas Motorcycles then Douglas Vespa and vehicle air brake equipment), Hobbs Automatic Transmissions (epicyclic gearbox), Westcode Semiconductors (now IXYS Corporation) The main factory was east of Foundry Lane, Signal & Automation design offices as well as Brake Engineering, drawing offices and design/test laboratories on island site shared with Hugh Baird & Sons, Maltsters and the Wiltshire Bacon Company.

Support activities included a well-equipped and staffed medical centre and apprentice training school and hostel.

To name a few things, railway vacuum brakes, numerous mechanical, electrical and electronic signalling innovations.

The company pioneered the use of S.G. Iron (spheroidal graphite) for crank shafts and other items (followed in this by Ford U.K.) and was the first to produce an all-electronic control & monitoring system (Westronic, in various "styles") initially for the railway market but then extending into oil, water, gas, electricity and sewage.

Nock, a prolific writer of railway books and magazine articles for many years, was the chief mechanical engineer for Westinghouse until his retirement in 1970.

A second book, Westinghouse Brake & Signal in Photographs 1894 to 1981, was published by polunnio.co.uk in 2010, this not-for-profit project raising funds for the Chippenham Museum & Heritage Centre which holds a significant collection of documents and artefacts about the company.