J L Bacon & Co, London, manufacturers & installers, active from c.1874
J L Bacon & Co, London, manufacturers & installers, active from c.1874
Natural ventilation of a theatre, Robert Boyle & Son, London & Glasgow, c.1900i
Screw fan, strap-driven from a steam engine, Useful Hints on Ventilation, W Walker, Manchester, 1850
Centrifugal fan driven by double enclosed steam engine,
Ventilation & Heating, Sturtevant, Boston & London, 1906
Perkin’s high pressure hot water boiler, Royal High School, Edinburgh, c.1900
Steel plate centrifugal fan with three-quarter housing on brick chamber,
Central Methodist Hall, London, 1911