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单词 sand core
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sand core
sand core n.
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1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 474 The sand cores for filling up that part of the shell which is to be hollow.
extracted from sandn.2
sand core
sand core n. a compact mass of sand that is dipped into molten glass and withdrawn, so as to serve as a core in the making of a hollow vessel; frequently attributive.
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society > occupation and work > equipment > glass-making equipment > [noun] > shaping equipment
ferret1662
punty1662
puntilion1665
pucellas1701
casting-table1728
marble1745
pinching tongs1765
borsella1823
punt1823
marver1832
pontil1832
punto1839
working tube1841
bullion-bar1852
blowing-iron1855
bullion-rod1862
blowpipec1865
pointel1865
gadget1868
casting-slaba1877
casting-plate1881
glass-cutter1881
sand core1894
polissoir1897
pontil rod1934
blowing-machine1940
blowing-pipe-
blowing-tube-
society > occupation and work > equipment > glass-making equipment > [adjective] > shaping equipment
sand core1894
1894 W. M. F. Petrie Tell el Amarna iv. 27 A tapering rod of metal was taken..; on the end of this was formed a core of fine sand... The rod and core were dipped in the melted glass... When the whole was finished, the metal rod in cooling would contract loose from the glass; it could then be withdrawn, the sand core rubbed out, and the vase would be finished.
1933 Antiquity 7 421 In the technique of glass-manufacture..the process of pressing into a mould as distinct from modelling on a sand-core came into vogue.
1934 Greece & Rome May 140 Vessels of glass made by the sand-core technique, a process well known in Egypt during the eighteenth dynasty.
1962 D. Harden Phoenicians xi. 154 From the seventh to the third century sand-core fabrics made up the bulk of existing glass vessels.
extracted from sandn.2
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