Excerpt from Foundry Work, Vol. 2: Instruction Paper The loam molder requires the greatest all-around skill in the whole range of foundry work. He must know all the tricks of core room and dry sand shop, and most of those in green sand. Added to all this he must have a practical working knowledge of the principles of drawing and must possess to a large degree the foresight of the designer. In order to save time and lumber in the pattern shop, only a set of sweeps are provided if the mold is simple, and these with blue ...
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Excerpt from Foundry Work, Vol. 2: Instruction Paper The loam molder requires the greatest all-around skill in the whole range of foundry work. He must know all the tricks of core room and dry sand shop, and most of those in green sand. Added to all this he must have a practical working knowledge of the principles of drawing and must possess to a large degree the foresight of the designer. In order to save time and lumber in the pattern shop, only a set of sweeps are provided if the mold is simple, and these with blue prints of the piece wanted, is all the molder has to work from. In intricate work, such as a modern Corliss cylinder, a skeleton pattern carrying the steam chests, etc., in accurate position is made. And in some very crooked work a pattern is furnished complete. As a rule, how ever, the loam molder must rely upon his own skill and ingenuity for the best method of constructing each detail of the work. Rigging. The equipment for the loam floor varies in different shops. In Fig. 93 is shown the essential features of an equipment for sweeping up circular forms. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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