| 单词 | lever frame |
| 释义 | > as lemmaslever frame lever frame n. (a) (see quot. 1950); (b) ‘in a railroad hand-car, a wooden frame shaped somewhat like a letter A, which supports the lever-shaft and lever on the platform’ ( Cent. Dict.). ΘΚΠ society > travel > rail travel > rolling stock > [noun] > inspection or maintenance vehicle > part of lever frame1869 1869 Bradshaw's Railway Man. 21 App. 116 (advt.) Patent locking lever frames. 1950 Times Rev. Industry 21/1 All points and signals are worked from a mechanical or manual lever frame. 1955 Railway Mag. May 307/2 At Stockport No. 2 signalbox, the existing mechanical lever frame has been retained. 1963 G. M. Kichenside & A. R. Williams Brit. Railway Signalling vi. 74 (caption) The interior of London Bridge signal box..showing the miniature lever frame. < as lemmas |
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