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 .. . ^ -patr^oftmimttry awe^Tja arrangements should be made for supporting thesand. It is possible, for certain special work, to sweepboth cope and drag; but it is seldom done. There are various reasons for using sweep AND FOUNDRY PRACTICE 109 work, the first and most common of which isfrom a consideration of economy, as where apatter
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 .. . ^ -patr^oftmimttry awe^Tja arrangements should be made for supporting thesand. It is possible, for certain special work, to sweepboth cope and drag; but it is seldom done. There are various reasons for using sweep AND FOUNDRY PRACTICE 109 work, the first and most common of which isfrom a consideration of economy, as where apattern is large and costly and only one or more. C/-rcy<i3 se^c-tfoii tltToiisT* :5^noh€ hot c^oor no PATTERN MAKING pieces are required, it is often better to usesweeps, as they save the cost of making a pat-tern. The cost of moulding from sweeps, how-
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License: Licensed
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherchicagofjdrakeco
