Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. . coreiox 8r_ swefjg- paring tools, planes, etc., until no bumpsappear when rubbing the hand endways along 134 PATTERN MAKING l^- fot the pattern. Lastly, put a leatherfillet^ at d and finish with shellacin the ordinary manner. Themaking of a core box for thiselbow is very similar to themaking of the pattern itself,except that the
Pattern making and foundry practice; a plain statement of the methods of wood pattern making, as practiced in modern pattern shops, with complete instructions for sweep work and notes on foundry practice, together with numerous drawings taken from actual patterns .. . coreiox 8r_ swefjg- paring tools, planes, etc., until no bumpsappear when rubbing the hand endways along 134 PATTERN MAKING l^- fot the pattern. Lastly, put a leatherfillet^ at d and finish with shellacin the ordinary manner. Themaking of a core box for thiselbow is very similar to themaking of the pattern itself,except that the design is le-rersed; the operation beingshewn in Figs. 9G and core can be sw^pt in askeleton box similar to theskeleton core boxes already de-scribed, excepting that from thecurved form of the core it isnecessary to so design the corebox that the sweep may bemoved from end to end of thework instead of around it. Sucha device is clearly shown inFigs. 98, 99 and 100. Fig. 101 represents an ordi-nary fluted cast-iron fence post,which has hollow projections forreceiving the ends of the top * Leather is now generally used for fillets and is sup-plied in various sizes by the trade. AND FOUNDRY PRACTICE 135 and bottom rail of the fence, which is Such a pattern would not draw if divided inthe ordinary manner; but the work becomessimple enough when parted as shown in Figs. 102and 103. The projections for receiving the ends j9aHinq
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicagofjdrakeco
