Other sections moved over to Mosley Road included mercury arc rectifiers and other vacuum plant, distribution and instrument transformers, and small switchgear with their corresponding office staffs. The various sections of the publicity department were brought together for the first time, and the organization of exhibition stands and production of cine-films were resumed on an increasing scale.

Some steel fabrication work, principally on large condensers, evaporators and feed heaters, was transferred in 1948 to Stockton-on-Tees, an area where suitable labour was available. Here a partly built excavator factory, the Bowesfield works, was acquired and completed, providing a floor area of 110,000 sq. ft.

Small turbine manufacture was moved to one of the West works extensions originally intended for switchgear. Control board assembly, which had been on K aisle for nearly fifty years, took over the remaining space, thus bringing nearly all switchgear work together again and allowing control gear to spread over most of H and K aisles. The manufacture of radio and electronic control equipment continued to occupy West works 4, 5 and 6, and railway signalling equipment was added to the products of this area.

These removals enabled much more room to be given to the manufacture of steam turbines and large electrical equipment in the main works, and it became possible to meet not only the exceptional demands immediately following the war but also the needs of a growing electricity supply industry overseas. The whole of the floor space under the giant cranes in B and D aisles is now used for machines of the largest size, and 'dynamo test' has been enlarged by the construction of a new pit measuring 30ft x 14^ ft x 16 ft deep and the addition of a 2500-hp driving motor; some two miles of high voltage cable are now installed.

For jet engine and gas turbine development, which began in 1938 with the first machines being built and tested in the main works, a special test house was built at Wincham in Cheshire. By 1944 however a new factory in Barton Dock Road, Trafford Park, had been built and equipped on behalf of the Government, and it was taken over by the Company for gas turbine work after the war.

The manufacture of welding equipment was moved in 1946 to the Leonard works, and the electrode section was designed to produce two-and-a-half to three million feet a week. The engineers, drawing office and sales staffs moved over in the following year, thus bringing the whole department under one roof.