英语词汇“headways course”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Coal Mining. Designating a passage driven in a direction parallel to that of the main cleavage of the coal (the cleat); of or relating to a headway (headway n. 2). Formerly frequently in headways course. Now historical.

ΚΠ

1708 J. C. Compl. Collier 16 in T. Nourse Mistery of Husbandry Discover'd (ed. 3) After we have carried our Head-ways Drift, about eight or ten Yards from the Pit Shaft, then we consider of a Winning.

1777 London Mag. Sept. 466/1 They set away two headways or boardways drifts having begun to sink another pit.

1820 Edinb. Encycl. (1830) XIV. 366/1 The double headways course is represented.

1881 Trans. North of Eng. Inst. Mining Engineers 30 259 In boring the holes the headways way they got a greater flow of gas.

1896 H. F. Bulman & R. A. S. Redmayne Colliery Working & Managem. x. 175 The bords were then narrowed in as they approached the wall, and holed 3 yards wide.., and so protected the headways course.

1904 H. W. Hughes Text-bk. Coal-mining (ed. 5) vi. 188 As the cleat runs approximately north and south in the North of England coalfield, headways course is generally taken to mean north and south, and bordways east and west.

1905 Trans. Inst. Mining Engineers 1903–4 27 218 Whilst each man works on a ‘bord-ways’ face of coal.., he continually leaves on his right-hand side a ‘head-ways’ or ‘end-on’ face of coal.

1910 Engin. & Mining Jrnl. 26 Nov. 1068/3 The coal fell more easily on the machine than it would if the face had been advancing in a headways direction.

2007 B. Griffiths Pitmatic vii. 96 Imagine you are looking at the side of the loaf, showing a long row of ends of slices—that is the position of a headways cleat (edge on, as it were).

单词	headways course
释义	> as lemmas headways course Coal Mining. Designating a passage driven in a direction parallel to that of the main cleavage of the coal (the cleat); of or relating to a headway (headway n. 2). Formerly frequently in headways course. Now historical. ΚΠ 1708 J. C. Compl. Collier 16 in T. Nourse Mistery of Husbandry Discover'd (ed. 3) After we have carried our Head-ways Drift, about eight or ten Yards from the Pit Shaft, then we consider of a Winning. 1777 London Mag. Sept. 466/1 They set away two headways or boardways drifts having begun to sink another pit. 1820 Edinb. Encycl. (1830) XIV. 366/1 The double headways course is represented. 1881 Trans. North of Eng. Inst. Mining Engineers 30 259 In boring the holes the headways way they got a greater flow of gas. 1896 H. F. Bulman & R. A. S. Redmayne Colliery Working & Managem. x. 175 The bords were then narrowed in as they approached the wall, and holed 3 yards wide.., and so protected the headways course. 1904 H. W. Hughes Text-bk. Coal-mining (ed. 5) vi. 188 As the cleat runs approximately north and south in the North of England coalfield, headways course is generally taken to mean north and south, and bordways east and west. 1905 Trans. Inst. Mining Engineers 1903–4 27 218 Whilst each man works on a ‘bord-ways’ face of coal.., he continually leaves on his right-hand side a ‘head-ways’ or ‘end-on’ face of coal. 1910 Engin. & Mining Jrnl. 26 Nov. 1068/3 The coal fell more easily on the machine than it would if the face had been advancing in a headways direction. 2007 B. Griffiths Pitmatic vii. 96 Imagine you are looking at the side of the loaf, showing a long row of ends of slices—that is the position of a headways cleat (edge on, as it were). extracted from headwaysadv.adj. < as lemmas
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