Collins, A. Frederick (Archie Frederick), 1869- · Boston, Small, Maynard and company · leaf 232
5) the igniter. The Cylinder.—This can be made of an ironpipe but it must be bored out true and smooth.Give it an inside diameter of 1 inch, make it 2%inches long and thread one end of it as shown inFig 71. Get a screw cap to fit it and drill a /4-inch holethrough the opposite sides of the wall,… … to 1 1 1 ^ £ 1 1 >^tV s N\ /sdV? 1 \ viLis o/ ^ 8 1 CO 1 217 218 The Boys Book of Engine-Building let out the burned gases. The hole in the headof the cap is for the igniter. Drill a %-inch hole % inch back from the frontend of the cylinder and through the wall andthread it for an oil cup. These…
Steam-engines
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