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Imperial
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1751 AD to 1914 AD (end of the 18th century AD to the beginning of the 20th century AD)
This period comes after the Post Medieval period and before the modern period and starts with beginning of the Industrial Revolution in 1750. It includes the second part of the Hannoverian period (1714 – 1836) and the Victorian period (1837 – 1901). The Imperial period ends with the start of the First World War in 1914. more ->
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BALANCE BEAM *
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The horizontal beam on a lock gate.
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RIVER LOCK *
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A section of the water channel of a river, shut off above and below by lock gates provided with sluices to let water in and out and thus raise or lower boats from one level to another. Often found situated next to a weir.
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WEIR *
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A dam constructed on the reaches of a canal or river designed to retain the water and to regulate its flow.
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SITE *
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Unclassifiable site with minimal information. Specify site type wherever possible.
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LOCK *
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A section of the water channel on a canal or river shut off above and below by lock gates provided with sluices to let the water out and in, and thus raise or lower boats from one level to another. Use more specific type where known.
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STONE *
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Use only where stone is natural or where there is no indication of function.
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LOCK CHAMBER *
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The space enclosed between the gates and side-walls of a lock.
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ROAD *
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A way between different places, used by horses, travellers on foot and vehicles.
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INDUSTRIAL *
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This is the top term for the class. See INDUSTRIAL Class List for narrow terms.
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SLUICE *
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A dam which can be raised or lowered to regulate the flow of water.
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GATE *
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A movable stucture which enables or prevents entrance to be gained. Usually situated in a wall or similar barrier and supported by gate posts.
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LIFT *
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A structure consisting of a box or platform for carrying goods or passengers from one level to another. Use specific type where known.
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* Copyright of English Heritage (1999)