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 293
e, and that the sand is a kind oftripoli, also containing iron: both are entirely constituted of various kinds of animalcules, several of which are found, 286 CENTRE OF GRAVITY. Its length is 4 feet 10 inches, it consists of about 180 links, and weighs If oz. avoirdupois. It was thusmade ; the… … sion of the metal, were first laid in the mould, and al* erwards the sand-cores 6 5, and a separate runnerwas made to every one of the small links c c, so as to unite the whole when poured. CEMENT. See Moktar. CENTRES. See Bridges. CENTRE OF GRAVITY. The forces with which all bodies tend to fall to…
Mechanical engineering
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