amage. The be, that strong liquors of common chloride of rammed the pin is withdrawn, so as to allow planed truly to form a parting surface for the projecting parts of the cams, /, are made lime—bleaching powder—injures the fibres of the pattern to jarfi, and the trunnicn pattern mold, and formed… … acid bath. At one period, dilute sulphuric what is to be molded in the flask, 2. On the patterns being so elevated, the sand is rammed into the flask, and then the patterns are with- drawn, become detached from the mold, which can then be removed without danger of in- juring the sharpness of any of…
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