| 单词 | point-switches |
| 释义 | > as lemmaspoint-switches a. On a railway: A movable rail or pair of rails pivoted at one end, forming part of the track at a junction with a branch line, siding, etc., and used to deflect or ‘shunt’ a train, car, etc. from one line to another; often made tapering, and in that case distinctively called split switches, point-switches, or points (point n.1 21k). Also, by extension, the whole apparatus of which this is the essential part. ΘΚΠ society > travel > means of travel > route or way > way, path, or track > road laid with parallel planks, slabs, or rails > [noun] > laid with rails > rail > movable rail at junction turnpike1793 turn-rail1793 switch1797 switch-rail1797 society > travel > rail travel > railway system or organization > [noun] > track > points switch1837 point1838 railway switch1838 shunt1842 railroad switch1849 cross-points1896 1797 J. Curr Coal Viewer 27 The part (h) being a stop to prevent the switch (g) from flying out too far. 1837 Civil Engineer & Architect's Jrnl. 1 71/2 The switches so arranged, that an engine can never run off the line. 1845 Ann. Reg. 89 A ‘switch’ which, when turned in one direction allows the train to pass direct on. 1898 H. E. Hamblen Gen. Manager's Story iv. 40 I ran ahead.., opened and closed switches, cut off and coupled on the engine [etc.]. < as lemmas |
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