A Treatise on the Cornish Pumping Engine, Teile 1-3

80 inches advantage air pump amount applied atmospheric engine balance bob bottom Boulton and Watt bucket bushel of coal calculation Chacewater condenser consequence considerable consumed Cornish boiler Cornish engine Cornwall cylinder Davies Gilbert Ditto Drawing perpendicularly effect equation equilibrium valve erected evaporation exhaustion valve expansion experiments fathoms feet fire flues foot high Fowey friction fuel heat horizontal rods improvement in-door stroke inches diameter inches single increased invention Jonathan Hornblower length of stroke lever lift machine Main beam main rod means mines motion Old Ford opening out-door stroke patent performed pipe piston pit-work Plate plunger plunger pump pressure of steam principle pump rods quantity of water raised remainder diagonally reported resistance result shaft space square foot square inch steam engine steam valve stuffing box surface tappet temperature Trevithick tube valve is closed velocity vis viva Watt's engines weight Wheal whole Wicksteed Wicksteed's Woolf