New-York tribune., 1901-05-26
FOREIGN NAVAL NOTES.

The inventor OF the BelIevile water tube boiler
has not accepted the condemnation of his generate
by the committee of the British Admiralty with
graceful acquiescence. on the contrary, he has
issued n statement traversing the report and as
sertng that the failure II failure is to be the
term used. due To improper handling. He
maintains that his boiler has given good results in
the French Navy. and supports this statement with
a congratulatory letter from the japanese Ad-
hoilered Adzuma on her voyage from England to
Japan II one accepts the inventors defence of
criticism unjust as well as severe; and vet his
aTgui'ht ptoETnd m MA M st In fttinr and hendiin,
which would he difficult to obtain under service
conditions especially In time of war
Liquid fuel seems not likely to dispace coal on
warships in the immediate future. In the British
Navy there has been much opposition To its use
partly because of the difficulty of burning oil with
the trailing black smoke but mainly because
there a large supply of it available in Brit
ish territory. In Italy. Germany. France and Rus
sia nearly all of the new ships equipped for the
of oil fuel. II was demonstrated only recently
that dangers following the use OF oil fuel are
Frederick III went aground a few weeks ago the
thrush of water carried the oil from the tanks In
it ignited and Introduced a peril that had not been
thought of II such danger may be presented in
should the hull of the ship be punctured and leak
age caused
1t is doubtful. Judging from the frequency of
Inquiries. If the ordinary reader grasps with in
telllEtnCe Wndt Is meant ny the terms natural
draught" and forced draught. invariably referred
to when speaking of the power or radius of action
of warship. Natural draught. as its name implies
is simply the natural method by which air finds its
way To the furnaces through the ventilatlng coils
and shafts and other parts of the furnaces in df-
rect connection with the atmosphere. Forced draught
is obtained by closing the fire rooms against the
the use of fans or blowers placed in shpfts dy a ny
into the fire room. and then under slight nress
ure into the ashpan or space under the fire thence
through the CRATES; in word. make the fires
burn more quickly. TO generate steam faster and i'm
greater quantity much after the same manner tbat
a kettle OF water ordinary kitchen fre -
made to boil quicker and stronger by the use OF
pair of bellows Induced draught is obtained by plac
In, the base the smoke pipe or tbs p1r r
bustion chamber: the fans revolving randIy iii.
a partial vacuum the fires and induce tha a.
from the fire room to pass at greater rate through
ton and the units of heat. This brief eynIana
ton will no doubt assist the novice to understand
upon the dHerehce or pressure on either side of
the CRATE bars and this difference may be due onI,,
to the natural supply Of air from the outer atmos-
of the fire. 1t may be increased bv appIvinp
artificial acknowledgement induced" dra,ight
An Italian has recently elaborated upon re-
frgerating methods warships and If future ex
of his system there will likely be less need for
crews to continue the long and monotonous diet q,
salt pork, salt beef canned meats on long
cruises For long time the only freezing ma
chimes on British war vessels We're provided for
making Ice for the sick. but they were known to
produce chiefly extremely heated language and
profuss perspiration among the people who
been fitted with refrieerating plants to enable
carrying fair supplies Of fresh meat for the crew
OF fresh and whnasn sall,eent yet The advantages
crews serving on shipboard, especially in the
tropics. cannot be overstated. ~