Reports from Committees, 第 20 巻Ordered to be printed, 1853 |
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13 June 21 June air passing air-ways amount of ventilation anemometer Appendix applied appointed attended Belgium boiler fires bottom brattice carried Cayley Chairman coal mines colliery Committee cubic feet current of air cylinders damp mines danger Davy lamp diameter Dickinson district Ditto doors down-cast downcast shaft effect employed engine experiments explosion feet of air feet per minute fiery fire-damp Fitzroy furnace gauze give goaf goaves H. F. Mackworth heat Hetton inches increase inspection jets July June Killingworth Lancashire Locke manager means miners mode Monkwearmouth naked lights natural ventilation Nicholas Wood north of England opinion overman persons practical present produce proper proprietors quantity of air regulations roof rules safety safety-lamp seam Seaton Delaval split stall steam steam-jet Stephenson stop sub-inspectors sufficient Supposing taken temperature up-cast shaft velocity ventilating power viewer Vivian water-gauge wire gauze workmen yards