| 释义 |
▪ I. platen, n.|ˈplætən, -(ə)n|
Forms: 5 plateyne, 6 -tyne, 6–9 plattin, 7 plataine, 7–9 platin, 8 platine, 7–9 platten, 8– platen.
[ME. plateyne, a. OF. platine (13– 14th c.) flat piece, metal plate, also a popular alteration of patene paten, from its form; in mod.F. a tabular portion of a machine, e.g. of a printing-press; f. plat adj.: see plat a. and -ine4.]
1.
†a. A flat plate of metal for various purposes. Obs.
1541Copland Guydon's Quest. Chirurg. P iv b, Take your platyne or quyl and apply them all colde, but ye must nat let them lye long, and than gyue the cauteres to the workeman that shall applye them all hote and very flamynge. 1597Lowe Chirurg. i. (1634) 6 To put..a platten in the roofe of the mouth, which is needfull to those who..have the roofe of the mouth falling. 1702W. J. Bruyn's Voy. Levant x. 40 Some wear upon their Heads a Kalpak, or Fur Cap; others a large round Platine, after the Fashion of the Jewish women. 1813J. Thomson Lect. Inflam. 273 They heated red hot their actual cauteries, of which some were shaped like a button, others like an olive, and a third sort like a platin; they applied them red-hot to the orifices of the vessels as soon as the member was separated.
b. Engin. The movable table of a planing or milling machine.
1908S. H. Moore Mech. Engin. xiii. 298 Horizontal milling machines..resemble in a way the conventional planer with its deep bed and long platen or table. 1950C. R. Hine Machine Tools for Engineers viii. 122 The worktable, or platen, moves back and forth on the bed ways and carries the work past the tool.
†2. = paten 1 (cf. etymol.). Obs.
c1450Lovelich Grail xvii. 49 There lefte he up the plateyne anon That vppon this glorious vessel was don. 1607R. C[arew] tr. Estienne's World of Wonders 189 Had his challice and plattin stolne by one which holpe him to say Masse. 1624Darcie Birth of Heresies xvii. 71 The Priest must lift the vaile ouer the Chalice, and release it from the Plataine, to represent the rent vaile..at Christs death.
3. Printing.
a. An iron (formerly wooden) plate in a printing-press, which presses the paper against the inked type so as to secure an impression; hence spec. a flat metal surface by means of which pressure is applied in a press. Also applied to a similar part in other machines.
1594R. Ashley tr. Loys le Roy 22 He maketh the traine of the presse to roule..till it come vnder the vice or spindle, vnto which the plattin is fastned. 1683Moxon Mech. Exerc., Printing ii. ⁋2 Brass Rules,..if they be but a little too high,..will bear the Plattin off the Letters that stand near them. 1706Phillips, Platen or Platine, the Plate of a Printer's Press. 1790Bystander 158 That part which is called the platen is found to be insufficient to bring off an even impression. 1824J. Johnson Typogr. II. xv. 513 The face of the plattin must be perfectly level and smooth. 1873E. Spon Workshop Receipts Ser. i. 310/1 Place the board or side upon which the stamp is placed, upon the platen of the stamping-press. 1894Brit. Jrnl. Photogr. XLI. 48 From the plates breaking so frequently, we suspect that the platten of the press is not perfectly true. 1927Knight & Wulpi Veneers & Plywood xx. 210 The platens are alternately squeezed together to flatten the veneer, and opened up to allow the moisture to escape from the wood surfaces. 1936H. W. Rowell Technol. of Plastics xv. 97 The simple up-stroke hydraulic press with steam or electrically heated platens..is a cheap and economical machine. 1963H. R. Clauser et al. Encycl. Engin. Materials & Processes 347/2 Two mold halves, which..combine to form one or more negative forms of the article to be molded, are tightly clamped between the platens of an injection-molding machine. 1964B. Latham Wood xiii. 159 A modern hot press may have ten, twelve, or even twenty platens, so enabling up to twenty sheets of plywood to be manufactured at each pressing operation. 1975A. D. Deutschman et al. Machine Design iv. 170 Laminating... It is possible to produce shapes other than flat sheets by using shaped molding dies between the forming press platens.
b. In a typewriter, the surface against which the paper is held and the type strikes (a cylindrical roller in most machines). Freq. attrib.
1890A. E. Morton Type-Writing & Type-Writers 12 The paper-carriage is much smaller, and the platen or cylinder differs from that of other machines in that it presents a flat surface for the types to strike against. 1899J. Wardle Universal Typewriter Man. 45 Platen knob, for turning the Platen..either backward or forward. Ibid., Platen roller, for the paper to rest upon when printing. 1907F. H. Burnett Shuttle xxiii. 227 The platen roller is easily removed without a long mechanical operation. 1909G. C. Mares Hist. Typewriter i. 45 The platen cylinder is supported in a carriage that slides on a rod. 1928M. Crocks Touch Typewriting for Teachers xvii. 125 The student can be trained to get the right amount of ‘flick’ with the platen knob to enable the paper to enter the machine up to whatever writing point is desired. 1962Which? Dec. 354/1 The bail bar, which should hold the paper against the platen, was thin and bent easily. 1976J. Fraser Who steals my Name? x. 122 He pressed the activate key, and..paper began to spew from the platen, printed in neat lines at the rate of ten words a second.
4. attrib. and Comb., as platen-cord, one of the cords by which the platen was suspended from the hose, in old presses; platen-gauge: see quot. (also called lay-gauge); platen-machine, platen printing-machine, a press having a platen, as opposed to a rotary or cylinder-press; platen-pan, in old presses, a metal socket in which the toe of the spindle works; platen-plate, a square iron plate let into the upper side of the platen, in the centre of which the platen-pan was fixed; platen press, a platen machine (not necessarily a printing-machine).
1683Moxon Mech. Exerc., Printing xi. ⁋14 If the *Plattin-Cords are too loose.
1878Halleck in Sci. Amer. XXXIX. 338/1 A New *Platen Gauge..applied to the platen of a printing press for holding and guiding the paper that is printed upon.
1888Jacobi Printer's Voc. 101 *Platen machine, printing machines which have a flat impression, not a cylindrical one.
1683Moxon Mech. Exerc., Printing xi. ⁋18 Into this square Frame is fitted the Stud of the *Plattin Pan. 1824J. Johnson Typogr. II. 513 To receive the stud of the circular brass plattin pan.
1683Moxon Mech. Exerc., Printing xi. ⁋18 In the middle of the upper-side [of the Platen] is let in..an Iron Plate called the *Plattin-Plate.
1888Encycl. Brit. XXIII. 704/2 We may say that of *platen presses there are the hand-press, the treadle platen press, and the steam or other power-driven press. 1927Knight & Wulpi Veneers & Plywood xxvi. 294 Pressing plywood singly, even in the multiple platen presses,..is a slow and expensive process. 1967V. Strauss Printing Industry vi. 278/1 Platen presses are the smallest and least complex of all widely used letterpress printing machines.
1873Curwen Hist. Booksellers 468 In 1867 he introduced a *platten printing machine.
▪ II. platen
obs. f. platten v., to flatten. |