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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 104

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 104
f one-sixth of the gear,which he fixed to two wooden bars, so arrangedas to swing around a center pin in the top of astake, which was driven firmly into the floor ofthe foundry. (See Fig. 57.) AND FOUNDRY PRACTICE 99 To make the mould from this partial pattern,level off the foundry floor with a… … ^IS 57 this it is lifted and moved, taking (jare that thelast cog on the pattern exactly fits the impressionin the sand. Ram this up again and move thepattern as before. Continue this until the com-plete circle is made, which will be an impressionof the complete gear. Since seeing this I have 100…

Patternmaking · Founding

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

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