All About Engines
Forfatter: Edward Cressy
År: 1918
Forlag: Cassell and Company, LTD
Sted: London, New York, Toronto and Melbourne
Sider: 352
UDK: 621 1
With a coloured Frontispiece, and 182 halftone Illustrations and Diagrams.
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Engines for Ships 283
of liner and in ships of war. All cargo vessels and
tramp steamers—and, indeed, many liners—are fitted
with the single or double-ended marine boiler. There
is one interesting device for improving the circulation,
when steam is being got up in the main boilers, which
Fig. 158.—Weir’s Hydrokineter
is worth describing. This is Weir’s Hydrokineter
shown in Fig. 158. It consists of an injector, fitted
just inside the casing of each of the main boilers, and
supplied with steam at a pressure of about 30 lb. on
the square inch from a donkey boiler—that is, a
small separate boiler used to supply a “ donkey ”
or “ general utility ” pump. Condensed steam alone
issues from the first nozzle, but in the case of the