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Knight's Mechanical Encyclopedia (ed. Knight) 2 0 Browse Search
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tting portion of a joiner's plane. 3. The iron portion of a thing, as a boom-iron, or pump-iron; a clip of a single-tree; the plow-irons, the iron portions of a plow, etc. I′ron, An′gle, etc Figs. 2698 and 2699 show forms of rolled iron for bridges, girders, beams, rails, etc. See Brandt's Eisen-Konstructionen, Berlin, 1865; Heinzerling's Die Brucken in Eisen ; Fairbairn's On the application of cast and wrought iron, London, 1854; Zoreas Recueil de Fers Speciaux, Paris, 1853; and Maurer's Die Formen der Walzkunst und das Faconeisen, Stuttgart, 1865. See also angle-iron. I′ron—block. A tackle-block with an iron shell and strap. The illustration shows several kinds and sizes. Iron-blocks. I′ron—boat. One made of iron-sheets, riveted together. I′ron—bottle. An iron bottle with a screw-plug, for holding quicksilver. It is made by swaging and drawing from a disk of tough wrought-iron. After being brought by swaging to the form of an openended