Copy 2 of DOC - Caltechcampuspubs - California Institute of ...

204 CALIFORNIA INSTITUTE OF TECHNOLOGY
Sh. 3. PATTERN MAKING. :METAL CASTINGS AND THE PATTERNS
THEREFOR.
Lectures on the requirements of patterns for metal castings; the
necessity for and the determination of the amount of shrinkage, draft
and other allowances; the effects of chilling and other heat treatments
on cast metals; study of moulding methods and pattern construction.
Instructor: Henck.
ST!. 4. MACHINE SHOP. WORKING OF METALS.
Experiments in the cutting of metals with shears, files, cold chisels
and drills, in lathes and other machine tools, with especial regard to thc
hardness and other properties of the metals, and the suitability of the
tool cutting-edge; effect of speed and feed in machine tool operation;
methods of laying out work; experimental determination of necessary
accuracy in the fitting of machine parts.
Instructor: Hall.
Sh. 1-4. (Above subjects.) Distributed through the three terms
and the summer period .of the freshman year. (8 units for the year.)