| 单词 | riving knife |
| 释义 | > as lemmasriving knife riving knife n. (a) a knife for cleaving or splitting lengths of timber; a froe; (b) a safety device on a table saw which sits in the kerf close behind the teeth of the saw and moves along the workpiece with the saw, thereby preventing both the workpiece from being lifted by the emerging teeth and chips from being thrown up towards the operator. ΚΠ 1842 Jrnl. Franklin Inst. 4 52 A piece..is then rived off by means of a reciprocating knife, which piece then falls on a table below the riving knife. 1875 E. H. Knight Amer. Mech. Dict. III. 1950/2 Riving-knife, a tool used in splitting balks for staves, clapboards, shingles, etc. 1951 Econ. Bot. 5 114/2 Splitting is waning and experts with a riving knife are few. 1967 E. F. Bleiler Best Tales of Hoffmann 243 I see a fair, well-proportioned cask laid on the end-stool, the staves all beautifully finished off with the riving knife and the broad axe. 1971 New York 6 Dec. 42/3 The tool's good features include a riving knife behind the blade for user safety. 2003 K. Mehler Table Saw Bk. iv. 64 Although a splitter or riving knife prevents kickback, a workpiece can still be ejected straight toward the front of the saw. < as lemmas |
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