High school manual training course in woodwork, including cost of equipment and supplies and studies on trees and wood (1905)
Ritchey, Samuel Edward, 1866- · New York, American Book Company · leaf 168
Fig. .305 … 306 The metal is frequently poured in core sand or cores,green sand not being used. The drawing by Peter S. Dingey (Fig. 372), showinghow a chain is cast, makes plain the method. The metal is sometimes poured into molds madefrom patterns and core-sand molds combined, as inthe case of the head-stock…
Woodwork (Manual training) · Cabinetwork
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