Simmance S.G. bell. Bell type gas holder capacity approx. 1 1/2 litres with calibrated outlet orifice. The measured flow-rate permits calculation of the density of the gas contained. Simmance S.G. bell, Bell type gas holder
Section of tank plate and jointing from No.18 gas holder at Great Harwood Gasworks, by Robert Dempster & Sons Ltd, Blackburn, 1953-4 Section of Gas Holder Tank Plate from No.18 Gas Holder at Great Harwood Gasworks 1953-4
Maker's plate from No.18 gas holder at Great Harwood Gasworks, by Robert Dempster & Sons Ltd, Blackburn, 1953-4 Maker's plate from No.18 gas holder at Great Harwood Gasworks 1953
Guide wheel and section of guide column from No.5 gas holder at Kensal Green Gasworks, by Vitruvius Wyatt, London, 1878-9 Guide Wheel from No.5 Gas Holder at Kensal Green Gasworks 1878-9