Bancroft Mill, Barnoldswick
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The Roberts Engine142 viewsThe Roberts engine at Bancroft is a two cylinder horizontal cross-compound engine. ‘Compound’ means that the steam first passes through the high pressure cylinder (James) and then the low pressure cylinder (Mary Jane) to extract as much energy from the steam as possible. Efficiency is further improved by a condenser in the cellar which condenses the exhaust steam creating a vacuum which increases the effective pressure across the low pressure cylinder.
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Lancashire Boiler148 views
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Cornish Boiler152 views
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Cornish Boiler137 views
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Cornish Boiler140 views
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Lancashire Boiler132 views
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130 viewsDiagram of how the Lancashire Boiler works
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Bancroft Mill141 views
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The Bradley Engine127 views
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The Bradley Engine134 views
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The Bradley Engine133 viewsPressure gauges
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The Bradley Engine132 viewsThis engine, built by Smith Bros and Eastwood of Bradford is a two cylinder tandem compound (one cylinder behind the other) originally installed at Peter Green’s mill at Low Bradley near Skipton in 1901. This mill also closed in 1978, with the engine remaining in situ until the buildings were converted to housing in 2003.
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