en off when a core was made so as to get the ficult to get at except when the locomotive is over a proper thickness at the connecting groove. The total pit. Also in a heavy passenger engine there is a weight of the casting was 7 tons. saving of as high as 1,745 pounds over the Stephen- A… … Method of Striking Up the Mold. daylight, if we wish). The blacks come off in a few At the same time, in our effort to obtain power we A PUZZLING BIT OF FOUNDRY WORK. minutes, and we obtain directly a foundation com- have rather neglected the question of efficiency, posed of reliefs. The picture…
Internet Archive · Public domain (published before 1931). Free to use for anything.
