Harper's boating book for boys; a guide to motor boating, sailing, canoeing and rowing (1912)
Davis, Charles G. (Charles Gerard), 1870-1959, ed · New York, London, Harper & Brothers · leaf 246
m thebase up past the piston. Some engines have the heads and sides of the cylindersall cast in one piece, as shown in the accompanying illustra-tion; but others have the heads bolted on separately. Ifyou were to take off this head and look inside you wouldonly see a polished, smooth surface like… … Fig.t of the piston slide up and down like the plunger of a pump.This piston takes the pressure as the gases expand uponbeing ignited. It is shaped like a tin-can upside down, andlooking in from the top you see the bottom of the can-shapedpiston. Across the inside of this piston there is a steel…
Boats and boating
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