Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 414
ownward through vertical tubes to a smoke-5ox in the base. Thecrown-sheet and downward draft tubes are well covered by water. It is an ad-mirable illustration for the draughtsman of how a boiler in action may berepresented. The usual form of upright boiler consists of a fire-box, extending a… … 398 MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. pipe. It is a convenient form for furnishing steam for a small power, but notas economical in combustion, and apt to prime—that is, take up water withthe steam, and leak at the top of the tube exposed in the smoke-box. The common vertical boilers…
Mechanical drawing
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