| 单词 | jig-brow |
| 释义 | > as lemmasjig-brow jig-brow n. Coal Mining an underground incline on which a jig or jinny (see 6d) works, also called jinny-road. ΘΚΠ society > occupation and work > workplace > places where raw materials are extracted > mine > [noun] > passage > for conveying coal, etc. pithead1662 wagon-way1727 wagon-gallery1839 jig1866 up-brow1867 jig-brow1877 jinny-road1877 plane1877 chain road1883 loader gate1964 1877 Encycl. Brit. VI. 69/1 The drawing roads for the coal may be of three different kinds,—(1) levels driven at right angles to the dip,..(2) rise ways, known as jinny roads, jig-brows, or up-brows,..(3) dip or down-brows, requiring engine power. 1881 Trans. Amer. Inst. Mining Engineers 1880–1 9 148 Jig-brow. 1900 Daily News 11 Jan. 7/3 Then we went to the face, up some of the ‘jig brows’, the roads running off at right angles from this pony track. < as lemmas |
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