Controlled Heat and Air

of Grosvenor Place, London, SW1. Telephone: Sloane 5629. Telegraphic Address: "Trollair, Knights"
1937 British Industries Fair Advert as part of Incandescent Furnace Group. Designers and Manufacturers of Continuous Conveyor and Batch Type Ovens for all Industrial Finishes and Drying Processes. (Engineering/Metals/Quarry, Roads and Mining/Transport Section - Stand Nos. D.327 and D.226)
1952 Patent - An improved apparatus for filtering dust from gases.
1955 Patent - Improvements in air or gas heaters with heat storage means.
1961 The company was an associate of Incandescent Heat Co[1]
1963 The MD of the company was appointed to the board of Incandescent Heat Co[2].
See Also
Sources of Information
- 1937 British Industries Fair Advert p633, and p351
- [1] [2] Wikipatents