A Text-book of Coal-mining: For the Use of Colliery Managers and OthersC. Griffin, Limited, 1901 - 527 pagina's |
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Overige edities - Alles bekijken
A Text-book of Coal-mining: For the Use of Colliery Managers and Others Herbert William Hughes Volledige weergave - 1901 |
Veelvoorkomende woorden en zinsdelen
alternating current amount angle arrangement attached bolts bore-hole boring bottom cage carbonic acid carried cent centre chain CHARLES GRIFFIN coal coal-dust Colliery compressed connected consists cost cylinder diameter distance drill driven drum electric employed engine explosive feet fire-damp fixed flange friction gear Gelignite groove haulage hole inches inclination Inst iron lamp latter length lever lifted load longwall lower Lye Cross machine method mines motor obtained ordinary pass pieces pillars pipes piston placed plate plunger position pressure prevent props pulley pump quantity rails roads rods roof rope round safety lamp screen screw seam shaft shown in Fig side sinking sliding South Wales speed stall steam steel strata stroke surface thick timber tippler tool tube tubs valve velocity ventilation vertical wedging weight wheel winding winding engine wire wire ropes yards
Populaire passages
Pagina 526 - GENERAL CONTENTS. — Classification of different Types of Boilers— 425 Experiments on English and Foreign Boilers with their Heat Efficiencies shown in Fifty Tables— Fire Grates of Various Types — Mechanical Stokers — Combustion of Fuel in Boilers — Transmission of Heat through Boiler Plates, and their Temperature — Feed Water Heaters, Superheaters, Feed Pumps, &c. — Smoke and its Prevention — Instruments used in Testing Boilers — Marine and Locomotive Boilers — Fuel Testing...
Pagina 530 - BY THE SAME AUTHOR. KITCHEN BOILER EXPLOSIONS: Why they Occur, and How to Prevent their Occurrence. A Practical Handbook based on Actual Experiment. With Diagram and Coloured Plate. Price 33.