. First century of national existence; the United States as they were and f, per thousand, whatthey were before, but the caster, neverthe-less, earns more. In these machines thetype metal—which is a mixture of lead, tin,and antimony—is contained in a state offusion in a small iron reservoir, about 5inches square, and into which it is forcedwith great power. This is tapped by anipple, which holds as much melted metalas will cast a type. The mould is of steel, ina small machine which is worked by a is simply for the body of the type, and isso placed that the lower end, by a move-
. First century of national existence; the United States as they were and f, per thousand, whatthey were before, but the caster, neverthe-less, earns more. In these machines thetype metal—which is a mixture of lead, tin,and antimony—is contained in a state offusion in a small iron reservoir, about 5inches square, and into which it is forcedwith great power. This is tapped by anipple, which holds as much melted metalas will cast a type. The mould is of steel, ina small machine which is worked by a is simply for the body of the type, and isso placed that the lower end, by a move-ment of the machine, will fit exactly over theorifice of the nipple. Against the other endis apjilied a copper matrix of the letter, andfirmly held by a spring. The operator thencauses the metal to jet into the mould. Then,as soon as it is set, he releases it, opensthe mould, and allows the type to drop intoa box. In this process, the matrix of theletter is separated from the body of thetype. It is formed on a steel die, and im-pressed into the copper previously prepared,. FRANKLIN IKt&h
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Keywords: ., bookauthorhodgejam, bookcentury1800, bookdecade1870, bookyear1874
