Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 82
he cylinder, that isits thickness, %6 inch thick. You wont need todrill the port holes in the pattern as it can bedone to better advantage in the casting when itis made. Saw out two rings of wood Vs inch thick andmake the inside diameter of each one % inchand the outside diameter 1% inches; glue a… … 67 68 The Boys Book of Engine-Building wide, % inch high and i% inch long; make thefoot proper Vs inch thick, round the top of the pat-tern so that it will fit the cylinder and glue a footto each side of the latter as shown in Fig. 32.When the glue has set, sandpaper and shellac thepattern and it…
Steam-engines
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