| 单词 | rift sawing |
| 释义 | > as lemmasrift sawing rift sawing n. Woodworking (originally) = quarter sawing n. at quarter n. Compounds 4; (now also North American) a method of sawing a log of wood into boards by quartering the log radially and making further cuts aligned to the centre of the tree and parallel to each other, producing boards with a uniform and straight grain pattern.In North America, the annular rings run from 30 to 60 degrees from the face of the board. ΘΚΠ society > occupation and work > industry > building or constructing > constructing or working with wood > [noun] > sawing or cutting > specific ripsawing1842 through-and-through sawing1876 rift sawing1881 quarter sawing1883 whip-sawing1885 sawmilling1901 plain sawing1931 1881 W. B. Judson Lumberman's Hand Bk. (new ed.) 178 Quarter-sawing and rift-sawing are the same. 1920 F. T. Hill Pract. Aeroplane Constr. iv. 97 Rift sawing..is to be preferred [for aircraft work]. 1968 F. Hilton Craft Technol. for Carpenters & Joiners i. 17 (heading) Quarter or rift sawing. 1997 Archit. Woodwork Quality Standards Illustr. (ed. 7) §100 22/2 Rift sawing produces small flecks caused by cutting through the wood rays... Rift cutting reduces yield and increases cost. The annular rings run about 30 to 60 degrees to the face of the board, with the optimum being 45 degrees. < as lemmas |
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