Journal of the Franklin Institute; devoted to science and the mechanic arts (1826)
Franklin Institute (Philadelphia, Pa.) · Oxford, Eng. [etc.] Pergamon Press [etc.] · leaf 876
ast-iron, supports the table on which are placed thefeeding tubes and dies; through the centre of the stand a vertical shaftrises from the room beneath, on the lower end of which is a pulley and itsband, furnished with a clutch box, by means of which, movement is given,or arrested, as occasion… … 2 3 4-5 6 7 8 9 10 It 12 Inches Upon the central axis is a wheel, furnished with two steel dies upon itperiphery, the length of each of which corresponds to the circumferenceof the coin to be milled; and on the trilateral spaces of the table, are firmlyscrewed blocks for the outside dies, furnished…
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