half-platen.

Brit.

/ˈhɑːfpleɪt/, U.S.

/ˈhæfˌpleɪt/

Origin: Formed within English, by compounding. Etymons: half adj., plate n.

Etymology: < half adj. + plate n. In sense 1 after plate paper n. at plate n. Compounds 2.

1. Printmaking. As a modifier. Designating a type of soft absorbent paper used for prints and engravings. Now rare.

1831 London Lit. Gaz. 12 Feb. 109/1 (advt.) ‘The acts of mercy’; Eight Fac-simile engravings, by F. C. Lewis. Price on half-plate royal paper, 1l. 10s.

1882 Workshop at Home Amateur Work, Illustr. 370/2 Half-plate paper—a kind, into whose manufacture only half the usual proportion of size has been introduced.

1980 Dict. Paper (Amer. Paper & Pulp Assoc.) (ed. 4) 209 Half plate paper. A machine-made paper of fine and soft texture used for woodcuts.

2. Photography. A photographic plate measuring 4¾ by 6½ inches (approx. 12 cm by 16.5 cm); an image produced from such a plate. Also as a modifier.

ΘΠ

society > leisure > the arts > visual arts > photography > plates and films > [noun] > plate > types of

screen plate1843

whole plate1850

quarter-plate1854

wet plate1859

stripping-film1885

gelatin dry plate1890

panchromatic1906

1849 S. D. Humphrey Syst. Photogr. 37 With the pliers bend up the corners, if a quarter or half plate, and holding the plate in the same manner as for removing the coating, pour on the gilding.

1877 Design & Work 3 451/1 Half-plate portrait lens.

1892 Photogr. Ann. II. 58 On your slide you require to get all the view on the half-plate negative.

1903 A. Watkins Photography (ed. 2) 13 Half-plate is the favourite amateur size.

1962 A. F. Taylor Photogr. Commerce & Industry iv. 105 Two half-plates can be dry-mounted on a thick flexible manilla sheet, measuring 13 x 8 in. to fit the standard foolscap filing cabinet.

2001 Hist. Today June 62/2 A wooden Thornton Pickard half-plate field camera with double book form dark slides..and a half plate enlarger lit by a paraffin oil lamp.

3. Watchmaking. A type of watch in which part of the top plate is removed, so that it only partially covers the pillar plate. Also as a modifier. Now historical.

1851 Guide-bk. Industr. Exhib. 68 If a watchmaker were to try and cut down a good old watch, and attempt to make it a flat half-plate watch, that is, all the work flush with the upper plate, he would see at once the defect of the present calibre of the modern flat watch.

1868 Sci. Amer. 6 June 354/3 The American Watch Company, Waltham, have several kinds, qualities and sizes, for ladies and gentlemen, some full and some half plates.

1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 116 Half Plate, a watch in which the top pivot of the fourth wheel pinion is carried in a cock so as to allow of the use of a larger balance.

1919 H. C. Brearley Time Telling through Ages 283/2 In half-plate, and three-quarter-plate types of watches part of the disc is cut away.

1976 M. Cutmore Watch Collector's Handbk. i. 37 Watches were thinned by using a three-quarter or half-plate movement.

2017 J. Betts Marine Chronometers at Greenwich ii. 619/1 The half-plate, twin going-barrel movement has all frame parts in nickel-plated brass.

This entry has been updated (OED Third Edition, December 2022).

21. Photography. A thin sheet of metal, glass, or other substance, coated with a light-sensitive film, on which single photographs are taken in larger or older types of camera; a photograph produced in this way. Also (with distinguishing word, as half-plate, quarter-plate, etc.): a standard size of photographic print or negative (see quot. 1907).dry plate: see dry adj. and adv. Compounds 3.

ΘΚΠ

society > leisure > the arts > visual arts > photography > plates and films > [noun] > plate

plate1840

photoplate1871

1840 Penny Cycl. XVIII. 113/2 Thus prepared, the plate is next placed within a camera-obscura..and the delineation of the object is then effected.

1855 T. F. Hardwich Man. Photogr. Chem. 13 We are indebted to Sir John Herschel for the first use of glass plates to receive sensitive Photographic films.

1876 W. de W. Abney Instr. Photogr. (ed. 3) 61 With dry plates, and on some occasions with wet plates, there is another system..of calling forth the invisible image, and this..is known as the ‘alkaline development’.

1907 N.E.D. at Plate A whole-plate measures 8¹/ ₂ × 6¹/ ₂ inches; half-plate (English) 6¹/ ₂ × 4³/ ₄ inches; (U.S.) 5¹/ ₂ × 4¹/ ₄ inches; quarter-plate, 4¹/ ₄ × 3¹/ ₄ inches.

1937 Discovery Oct. 299/1 The fixing of a photographic plate by desensitisation.

1970 Jrnl. Brit. Astron. Assoc. 81 43 Three plates taken between May 4 and 6, when the Earth was in the plane of the comet's orbit, show a beautifully straight tail about 10° long.

2003 Vanity Fair (N.Y.) Dec. 345/2 He was issued a Speed Graphic, a camera that required the insertion and removal of plates.

单词	half-plate
释义	half-platen. Brit. /ˈhɑːfpleɪt/, U.S. /ˈhæfˌpleɪt/ Origin: Formed within English, by compounding. Etymons: half adj., plate n. Etymology: < half adj. + plate n. In sense 1 after plate paper n. at plate n. Compounds 2. 1. Printmaking. As a modifier. Designating a type of soft absorbent paper used for prints and engravings. Now rare. Π 1831 London Lit. Gaz. 12 Feb. 109/1 (advt.) ‘The acts of mercy’; Eight Fac-simile engravings, by F. C. Lewis. Price on half-plate royal paper, 1l. 10s. 1882 Workshop at Home Amateur Work, Illustr. 370/2 Half-plate paper—a kind, into whose manufacture only half the usual proportion of size has been introduced. 1980 Dict. Paper (Amer. Paper & Pulp Assoc.) (ed. 4) 209 Half plate paper. A machine-made paper of fine and soft texture used for woodcuts. 2. Photography. A photographic plate measuring 4¾ by 6½ inches (approx. 12 cm by 16.5 cm); an image produced from such a plate. Also as a modifier. ΘΠ society > leisure > the arts > visual arts > photography > plates and films > [noun] > plate > types of screen plate1843 whole plate1850 quarter-plate1854 wet plate1859 stripping-film1885 gelatin dry plate1890 panchromatic1906 1849 S. D. Humphrey Syst. Photogr. 37 With the pliers bend up the corners, if a quarter or half plate, and holding the plate in the same manner as for removing the coating, pour on the gilding. 1877 Design & Work 3 451/1 Half-plate portrait lens. 1892 Photogr. Ann. II. 58 On your slide you require to get all the view on the half-plate negative. 1903 A. Watkins Photography (ed. 2) 13 Half-plate is the favourite amateur size. 1962 A. F. Taylor Photogr. Commerce & Industry iv. 105 Two half-plates can be dry-mounted on a thick flexible manilla sheet, measuring 13 x 8 in. to fit the standard foolscap filing cabinet. 2001 Hist. Today June 62/2 A wooden Thornton Pickard half-plate field camera with double book form dark slides..and a half plate enlarger lit by a paraffin oil lamp. 3. Watchmaking. A type of watch in which part of the top plate is removed, so that it only partially covers the pillar plate. Also as a modifier. Now historical. Π 1851 Guide-bk. Industr. Exhib. 68 If a watchmaker were to try and cut down a good old watch, and attempt to make it a flat half-plate watch, that is, all the work flush with the upper plate, he would see at once the defect of the present calibre of the modern flat watch. 1868 Sci. Amer. 6 June 354/3 The American Watch Company, Waltham, have several kinds, qualities and sizes, for ladies and gentlemen, some full and some half plates. 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 116 Half Plate, a watch in which the top pivot of the fourth wheel pinion is carried in a cock so as to allow of the use of a larger balance. 1919 H. C. Brearley Time Telling through Ages 283/2 In half-plate, and three-quarter-plate types of watches part of the disc is cut away. 1976 M. Cutmore Watch Collector's Handbk. i. 37 Watches were thinned by using a three-quarter or half-plate movement. 2017 J. Betts Marine Chronometers at Greenwich ii. 619/1 The half-plate, twin going-barrel movement has all frame parts in nickel-plated brass. This entry has been updated (OED Third Edition, December 2022). > as lemmas half-plate half-plate n. Photogr. (see plate n. 21); also attrib. ΚΠ 1877 Design & Work 3 451/1 Half-plate portrait lens. 1884 F. J. Britten Watch & Clockmakers' Handbk. (new ed.) 116 Half Plate, a watch in which the top pivot of the fourth wheel pinion is carried in a cock so as to allow of the use of a larger balance. 1888 C. T. Jacobi Printers' Vocab. 56 Half plate paper, machine made paper of fine and soft texture used for woodcuts. 1892 Photogr. Ann. II. 58 On your slide you require to get all the view on the half-plate negative. 1903 A. Watkins Photogr. (ed. 2) 13 Half-plate is the favourite amateur size. extracted from half-comb. form half-plate 21. Photography. A thin sheet of metal, glass, or other substance, coated with a light-sensitive film, on which single photographs are taken in larger or older types of camera; a photograph produced in this way. Also (with distinguishing word, as half-plate, quarter-plate, etc.): a standard size of photographic print or negative (see quot. 1907).dry plate: see dry adj. and adv. Compounds 3. ΘΚΠ society > leisure > the arts > visual arts > photography > plates and films > [noun] > plate plate1840 photoplate1871 1840 Penny Cycl. XVIII. 113/2 Thus prepared, the plate is next placed within a camera-obscura..and the delineation of the object is then effected. 1855 T. F. Hardwich Man. Photogr. Chem. 13 We are indebted to Sir John Herschel for the first use of glass plates to receive sensitive Photographic films. 1876 W. de W. Abney Instr. Photogr. (ed. 3) 61 With dry plates, and on some occasions with wet plates, there is another system..of calling forth the invisible image, and this..is known as the ‘alkaline development’. 1907 N.E.D. at Plate A whole-plate measures 8¹/ ₂ × 6¹/ ₂ inches; half-plate (English) 6¹/ ₂ × 4³/ ₄ inches; (U.S.) 5¹/ ₂ × 4¹/ ₄ inches; quarter-plate, 4¹/ ₄ × 3¹/ ₄ inches. 1937 Discovery Oct. 299/1 The fixing of a photographic plate by desensitisation. 1970 Jrnl. Brit. Astron. Assoc. 81 43 Three plates taken between May 4 and 6, when the Earth was in the plane of the comet's orbit, show a beautifully straight tail about 10° long. 2003 Vanity Fair (N.Y.) Dec. 345/2 He was issued a Speed Graphic, a camera that required the insertion and removal of plates. extracted from platen. < n.1831 as lemmas
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half-platen.

> as lemmas