| 单词 | tympan-frame |
| 释义 | > as lemmastympan-frame attributive (in sense 4), as tympan-cloth, tympan-frame; tympan-sheet n. a sheet of paper, etc. laid on or fixed in the tympan, originally as a guide for placing the sheets to be printed. ΘΚΠ society > communication > printing > paper > [noun] > paper used as position guide tympan-sheet1683 lay-edge1892 lay1915 1683 J. Moxon Mech. Exercises II. 300 He takes a Sheet of Paper..for a Tympan-sheet. 1683 J. Moxon Mech. Exercises II. 338 This Tympan-cloath is a Fine and even Linnen Cloath. 1770 P. Luckombe Conc. Hist. Printing 345 The Tympan sheet..is only as a standing mark to lay all the other sheets exactly even upon. 1841 T. C. Hansard Treat. Printing & Type-founding 109 They now choose their points, which are thin iron arms, having a short point projecting from the end, and made to screw on to the tympan-frame. 1909 Webster's New Internat. Dict. Eng. Lang. Tympan,..3. Printing Presses,..in hand presses the tympan is double and consists of two sheets, usually of parchment, stretched on the tympan frame. < as lemmas |
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