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The tinas or amalgamating vats constitute the prominent feature of the Francke process; they are large wooden vats, shown in Figs. 1 and 2, page 173, from 6 ft. to 10 ft. in diameter and 5 ft. deep, capacious enough to treat about 2½ tons of ore at a time. Each vat is very strongly constructed, being bound with thick iron hoops.
For it is an old word, ordinarily employed in public civil administrations, and signified to the Greeks public burdens, as tribute, the expense of equipping a fleet, or similar things, as the oration of Demosthenes, FOR LEPTINES, testifies, all of which is occupied with the discussion of public duties and immunities: Phehsei de anaxious tinas anthrohpous euromenous ateleian ekdedukenai tas leitourgias, i.e.: He will say that some unworthy men, having found an immunity, have withdrawn from public burdens.
Now she shrugged philosophic shoulders. Tina stole hairpins, opened letters that she could not hope to decipher, rummaged bureau drawers, rifled cupboards and fingered books; but then, so did most of the other Tinas in Rome. What use to complain? Mary Gowd opened the thumb-marked letter, bringing it close to the candlelight. As she read, a smile appeared. "Huh! Gregg," she said, "Americans!"
From the furnaces the roasted ore is taken in ore cars to large hoppers or bins situated immediately behind the grinding and amalgamating vats, locally known as "tinas," into which the ore is run from the bin through a chute fitted with a regulating slide.
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