A mill race, millrace or millrun,[1]mill lade (Scotland) or mill leat (Southwest England) is the current of water that turns a water wheel, or the channel (sluice) conducting water to or from a water wheel. Compared with the broad waters of a mill pond, the narrow current is swift and powerful. The race leading to the water wheel on a wide stream or mill pond is called the head race (or headrace[2]), and the race leading away from the wheel is called the tail race[3] (or tailrace[2]).
A mill race has many geographically specific names, such as leat,[4] lade, flume, goit, penstock. These words all have more precise definitions and meanings will differ elsewhere. The original undershot waterwheel, described by Vitruvius, was a 'run of the river wheel' placed so a fast flowing stream would press against and turn the bottom of a bucketed wheel.[5] In the first meaning of the term, the millrace was the stream; in the sense of the word, there was no separate channel, so no race. The example of Mill Lade in Godmanchester refers to a wide channel leading to moorings where laden vessels unload, similar waterways known by the similar name of Lode exist in neighbouring districts.
As technology advanced, the stream was dammed by a weir. This increased the head of water. Behind the weir was the millpond, or lodge. The water was channelled to the waterwheel by a sluice or millrace- this was the head race. From the waterwheel, the water was channelled back to the course of the stream by a sluice known as the tail race. When the tail race from one mill led to another mill where it acted as the head race this was known as the mid race. The level of water in the millrace could be controlled by a series of sluice gates.[5]
^"Millrace". World English Dictionary (10th ed.). HarperCollins. Retrieved 27 June 2023. millrace or millrun (ˈmɪlˌreɪs)— n; 1. the channel in which the current of water driving a mill wheel flows to the mill. 2. the current itself.
^Chamber's Twentieth Century Dictionary, 1968, p=674
^"Leat". World English Dictionary (10th ed.). HarperCollins. Retrieved 7 September 2013. leat (liːt) — n ( Brit ) 1. a trench or ditch that conveys water to a mill wheel. [Old English -gelǣt (as in wætergelǣt water channel), from let 1 ]
^ abYorke, Stan (2005). The Industrial Revolution explained. Newbury, Berks: Countryside Books. pp. 20–31. ISBN978 1 85306 935 2.
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February 15, 2024
mill, race, this, article, about, current, water, water, channel, other, uses, disambiguation, further, information, sluice, mill, race, millrace, millrun, mill, lade, scotland, mill, leat, southwest, england, current, water, that, turns, water, wheel, channel. This article is about current of water or water channel For other uses see Mill race disambiguation Further information Sluice A mill race millrace or millrun 1 mill lade Scotland or mill leat Southwest England is the current of water that turns a water wheel or the channel sluice conducting water to or from a water wheel Compared with the broad waters of a mill pond the narrow current is swift and powerful The race leading to the water wheel on a wide stream or mill pond is called the head race or headrace 2 and the race leading away from the wheel is called the tail race 3 or tailrace 2 Mill Race Redbournbury Mill River Ver near St Albans A mill race has many geographically specific names such as leat 4 lade flume goit penstock These words all have more precise definitions and meanings will differ elsewhere The original undershot waterwheel described by Vitruvius was a run of the river wheel placed so a fast flowing stream would press against and turn the bottom of a bucketed wheel 5 In the first meaning of the term the millrace was the stream in the sense of the word there was no separate channel so no race The example of Mill Lade in Godmanchester refers to a wide channel leading to moorings where laden vessels unload similar waterways known by the similar name of Lode exist in neighbouring districts As technology advanced the stream was dammed by a weir This increased the head of water Behind the weir was the millpond or lodge The water was channelled to the waterwheel by a sluice or millrace this was the head race From the waterwheel the water was channelled back to the course of the stream by a sluice known as the tail race When the tail race from one mill led to another mill where it acted as the head race this was known as the mid race The level of water in the millrace could be controlled by a series of sluice gates 5 Contents 1 Image gallery 2 See also 3 References 4 External linksImage gallery edit nbsp A head race nbsp Storckensohn water head race or flume nbsp Tail race rejoining River Meon nbsp Cogglesford Mill a covered head race and the by pass weir nbsp millrace for Mingus Mill nbsp Johnson and Seymour Millrace from the Genesee RiverSee also editCanal pound Leat Penstock Watermill Water wheelReferences edit Millrace World English Dictionary 10th ed HarperCollins Retrieved 27 June 2023 millrace or millrun ˈmɪlˌreɪs n 1 the channel in which the current of water driving a mill wheel flows to the mill 2 the current itself a b Dictionary com word definition Chamber s Twentieth Century Dictionary 1968 p 674 Leat World English Dictionary 10th ed HarperCollins Retrieved 7 September 2013 leat liːt n Brit 1 a trench or ditch that conveys water to a mill wheel Old English gelǣt as in waetergelǣt water channel from let 1 a b Yorke Stan 2005 The Industrial Revolution explained Newbury Berks Countryside Books pp 20 31 ISBN 978 1 85306 935 2 External links edit nbsp Wikimedia Commons has media related to Mill races Retrieved from https en wikipedia org w index php title Mill race amp oldid 1162255385, wikipedia, wiki, book, books, library,
