Daily capital journal. (Salem, Oregon) 1903-1919, 1903-12-28

propeller.
This drum is inclosed within a
cylindrical case, and on the outside
Of the drum and on the inside Of the
case. facing and nearly touching each
other, are rows Of thousands of little
projecting blades. The blades on the
drum arc SO shaped slantingly that II
you were able to blow hard enough as
them a rotary impulse would be ap.
piled to the drum and 1t would be
moved round. The steam is let into
the cylinder through hole at the
side direct from the boiler. and, ACT
ing upon the movable blades, causes
the drum to revolve az very rapid
rate.
How It Works.
! The fixed blades on the inside of
the cylinder which almost touch the
others, slant in the opposite direction,
and they are there for the purpose
of securing the efficiency Of the tur.
bine and making the steam act upon
II in the right way. When the steam
first enters the cylinder it meets a
ring of these fixed blades, by which
It is DETECTED so that Il strikes the
adjoining ring Of moving blades at
tho proper angle for imparting the
rotary impulse. When the steam
leaves these blades It has naturally
been deficient and the second ring Of
fixed blades Is intorposed, these di.
recting the steam on to the second
ring Of moving blads Precisely the
same process is carried out with the
many succeeding rings of guide and
moving blades, until the steam finally
makes its escape at the exhaust pas
sage.
This is a complete explanation of
tho turbine. If, then, Il is so simple
and its capabilities so vastly superior
to those of the ordinary steam engine
all this, too. having been known for
years-the average person is at once
prompted TO inquire how II Is that
so little has been done with 1t so far.
The answer to this question comprises
all the objections to the turblne-ob
iections which, for the most part,
arise from its excess Of merit.
In the first place, the full advantage
Of the turbine is only derived when it
is working under full pressure and on
large scale. II does not do so well
on a small scale or at low speeds,
and, therefore, the best fields for ex.
pertinent all along, and the one which
would have yielded the best results.
would have been the Atlantic liner,
But the ocean giants are not let out
for experiments and 1t is the way OF
the world that early trials must be
made on comparatively small things.
The Coming Engine.
Mr.. Parsons had to get over this
dificulty as best he could, and nine
years ago the first ship, specially
lbuilt at Wallsend-on-Tyne. where are
now the works of the Parsons Steam
Turbine company limited, was pro
PEELED by the new method She was
Called the Turbina. and a speed OF
thlrty-four knots an hour was obtained
with her. Then the torpedo-boat de
stroyers Viper ard Cobra were built
and taken over by the admiralty. the
former proving herself able to travel
at forty-three miles an hour. Both
these vessels came TO grief through
causes with which the turbines had
nothing TO do; but the admiralty were
convinced, and more orders were
given. Then the turbine passenger
steamers were fitted for the Clyde
service. and those have been followed
by the new boats on the English
channel service, the wonderful per
formances vf which have attracted So
much attention. Turbines, moreover
have been fitted to three steam
yachts so far, one being the Emerald
belonging TO Sir Christopher Furness
which Is the first turbine-htted vessel
to cross the Atlantic.
An entirely separate system of tur
bine has been provided for revers
ing purposes. The steamship Queen
was stopped dead, when going over
nineteen knots an hour in one min
ute and seven seconds after the order
was given TO the engine-room. the
distance she travelled in this time be
ing only equal 70 two and a half TINS
her own length.
Take your lemonade unsweatened