The L'Anse sentinel. (L'Anse, L.S., Mich.) 18??-current, 1897-10-16
FlREpRooF WOOD FOR SHIPS.
Some of the Advantages and Dfsad-
vnntnges Incident to It's Use.

Some of the Advantages and Disad-
vantnges Incident to It's Use.
Noninflammable wood, or fireproof
wood, as it is commonly spoken of out
side of the circle of experts, has re-
ceived considerable attention from
naval constructors and naval engineers
since the Yaloo river fight in the China
Japan war, and more especially at the
recent international congress of naval
architects and marine engineers at
London, and from the naval authorities
of the United States and Japan. The
chief of the bureau of ordnance of the
United States navy recently made some
tests of fireproof wood for the purpose
of reporting upon its value for use in
making boxes for fixed ammunition.
His report declares that the wood, by
being treated with the chemicals used
in the fireproof process, lost consider
able strength and was difficult to work;
that it also corroded a piece of brass
placed between two pieces of 1t, abb
sorbed moisture to marked extent and
refused to receive paint. This report
resulted in instructions by Secretary
Long to the board of bureau chiefs to
make thorough investigation of the
use of fireproof wood, and the result is
predicted that the government will find
it advisable to cancel contracts that
have been made for fitting vessels under
construction with wood thus treated.
The board of bureau chiefs has re-
ceived several reports already. The
~, OF DO tirra0ra ra-
ports that five coats of paint were tried
on n single section of fireproof wood,
and it refused to receive any of them
OF the experimenting constructors az
the various naval stations one report
declares that the tools employed in
working the wood have been badly cor
roded by the chemicals used in the fire.
proofing treatment. Another makes
q report upon the corrosive effect upon
the steel and iron in the ship. 1t is also
reported that the wood is exceedingly
porous and is apt to make the decks of
a ship spongy. An article recently APP
peared in an English service paper writ
ten by San expert in which the writer
describes the decks of the armored
cruiser Brooklyn as of noninflammable
wood, and he contrasted their appear
ance disadvantageously with those of
the British men-of-war. He also pre-
dicted that the decks would not wear
well and was generally uncompliment-
airy to noninfammable wood.
Prof. Biles, the weli-known English
expert, has corrected this statement by
declaring the decks OF the Brooklyn are
not of noninflammabie wood, but that
they are thoroughly sound and tho
roughly durable" nd in every respectup
to the mark. The decks of the Broolllyr
are of Oregon pine. The gunhoat Helena
is fitted with n deck made of fireproof
wood, and the board of bureau chiefs is
to make q close inspection Of the ma
terial and it's effect upon tho ship and
report upon the ACCESSIBILITY of its use
in the future. The only large vessel in
the navy the decks of which are built
with the fireproof wood is the battle
ship Iowa.
The subject of noninfammablew wood
was discussed at much length by the
congress of naval archi-
tects and marine engineers. Charles f.
Ellis, describing the process OF making
wood noncombustible, said that it in
creased the weight from eight 10 fifteen
per cent, and that the arguments for its
use rested upon two grounds ouly-i. e.,
because it is noninfammable and be-
cause. by reason of its low conJ uctivity
of heat, it may be employed il substi-
tuition for material of greater conduct
i've power. Others spoke favorahly of the
material. It's chief drawbacks were
represented to be its weight and cost.
Prof Bi!es suggested that the effect of
weather on the wood might be nullified
If the decks were washed with a solu-
ton of the chemicals used in the fire.
proofing process. The system is really
an American invention, and so much
discussion was given the subject by the
congress that the British admiralty
has ordered a series of experiments to
be made at the Chatham dockyard in
order to obtain additional and valuable
information of the advantages or dis
advantages of the fireproos wood.-N.
Y. Tribune.
An rchaeOIOricaI ,HIlief