Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 216
rd is of cast-iron, in two parts, bolted together, and breaking joint, and forming a T section ofabout 12 square inches. The lower chord is of wrought-iron, composed of two plates, each 4 inchesdeep, by -J inch thick, placed side by side, with an interval of £ inch between them to receive the… … each side of the joints. The uprights or posts connecting the chords, and to which they are bolted,are of cast-iron, about 3 feet 4 inches apart, of an H section, and of 8 square inches in area. Througha hole in the centre of these pass the diagonal rods, two in each pannel, of wrought-iron 2 by £…
Mechanical engineering
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