ing to the minimum. In many stovepatterns allowance has to be made for the warping of thecasting. This is usually done by preparing a special 152 WOOD PATTERN MAKING form of mold board which is curved so as to give therequired curve to the pattern, as it is built on to and overthe mold board. This… … Appendix READING MKCHANICAI, (wORKINg) DRAWINGS Mechanical drawing has been defined as the univer-sal language of the engineer. A drawing made inone country can be read and worked to in another, thatis, the drawing proper. Notes on the drawing in thelanguage of a country could not be read except by…
Patternmaking
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