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单词 ring crib
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ring crib
ring crib n. Mining Obsolete a circular crib (crib n. 12) with an open top.
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society > occupation and work > equipment > mining equipment > [noun] > pit supports
yoking1653
set1830
crib1839
tub1839
wedging crib1839
cribbing1841
ring crib1849
tack1849
tymp1883
1849 G. C. Greenwell Gloss. Terms Coal Trade Northumberland & Durham 19 A ring crib may be made of metal or oak, of the same size as a wedging crib. It is open at the top, for the purpose of collecting water, which would otherwise fall down the pit.
1887 Trans. Mining Inst. Scotl. 8 237 A ring crib is laid at the bottom and fresh piles driven down, and so on until the stone-head is reached.
1892 R. O. Heslop Northumberland Words I. 199 A ring crib is an arrangement for catching water which would otherwise fall down the shaft.
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更新时间:2024/12/23 23:58:17