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Keywords:
ENGINES,
PUMPS,
DIRECT,
ACTION,
PUMPING,
NON ROTATIVE,
CORNISH,
STEAM,
COMPOUND,
MINING,
VALVES,
ECONOMY,
EFFICIENCY,
PISTONS,
CYLINDERS,
STROKES,
MINES,
COLLIERIES,
UNDERGROUND,
STRAIN,
PRESSURE,
IMPROVEMENT,
ROTATIVE
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© Thomas Telford and ICE
1878
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