MODERN STEAM PRACTICE . 3SÖ strongly feathered bosses , and the necessary flanges are provided for bolting the bed plate to the condenser casting . The frame should be no larger than what is required for the oscillation of the cylinder ; and the whole is bolted down on the top of wrought - iron … Fig . 233 . — Headstock . maincolumns are cast a A , Headstock pillow blocks . b , Cap for do . c c , Holes for columns . along with the head stock . These columns are made of wrought iron , and are of suffi - cient strength to receive the thrust and weight that they are sub - jected to ; and to…
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