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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 .. (1905)

Hand, L. H. (Louis Henry), b. 1854 · Chicago, F. J. Drake & co. · leaf 140

An illustration from 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 .., 1905, leaf 140
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 … of the rail are left loose from the pattern and aredrawn out of the sand after the pattern is lifted,and these, being hollow, leave their own core inthe sand. A suitable core box for Fig. 101 may be made 136 PATTERN MAKING of the form shown in Fig. 104, especially if anygrooves, moulds, etc., are…

Patternmaking · Founding

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

More pictures from 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 ..

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