The Wichita daily eagle. [volume] (Wichita, Kan.) 1890-1906, 1896-08-04

zOnta1 screw, which prOpcFS Inc scoSC'
when 1t is submerged
There are three horizontal propellers
| on the boat Two OF these are fixed
like the twin screws OF an ordinary YES
Sci, and are used when the boat is run
| ming light or awash- The third Is
smaller screw, placed above them. which
will be used IN submarine work
There are three rudders at the stern
OF the boat-one vertical, for steering
in the horizontal plane, and two hori-
zontal, for steering in the vertical plane
These rudders are each rugged with in
genious automatic mechanism
HOW IT WILL DIVE.
When the vessel is running on the sur
face at full speed and il is desired To
dive, the ballast tanks will be allow
ed to fill with water. The fires under
the boiler will be extinguished, the
stack and ventilator shaft shipped In
to the boat and the cover OF the ap-
erture through which they are drawn
swung around and clamped. The
forward ends OF the diving ruddeTs
will be thrown upward. and then ths
vessel Will descend. When the level at
which IL is desired to run Is reached,
the automatic apparatus which controls
the horizontal rudders viii be put into
action. II, by accident. this mechanism
fails and the vessel descends TO great
er depth than desired. the pressure OF
the water on the piston viii cause the
opening OF the valve, which VIII admit
such heavy pressure OF air 10 the
bow ballast tank that about 1900 pounds
OF water will be expelled from the boat
reducing her weight so much as TO
give her strong tendency TO rise.
ThS first part OF the submarine run
will be made under the steam left in
the boilers when the fires were put out.
When il IS exhausted the propeller,
operated by electricity, viii be started.
While running, the vessel, OF course,
will retain her slight upward tendency
but this is TO be overcome by keeping
the forward end of the horizontal rud-
der slightly raised. II IL IS desired
that she lie still under water, the pro-
peller can be stopped. water admitted
to the ballast tanks until she retains
an upward tendency equal 10 3l5 pounds
and the vertical screws put In motion
10 neutralize this buoyancy. The boat
can be trimmed by shifting OF the bal
last, or by an increase. decrease or
reversal OF the motion OF either OF the
vertical ecrews.
I.Htl CAMERA LOClDA-
The boat will also carry camera iu
cida, which can be pushed UP in tube
four and a half feet above the top Of
the turret- BY means Of this optical
apparatus the pilot in the coming tow
er can view the surface of the sea on
every side when the craft is running
with four feet OF water over the tur-
ret. A Fleuss diving helmet will be
provided for every member OF the crew.
In case Of disaster when submerged
such as the flirting of one OF the water
tight compartments. the men can put
on these helmets, allow the boat 10 fill
with water gradually and then escaue
TO the surface through the companion
way.
Asa means ofrepleni shing the afr sup
ply while submerged. there will be fas-
tened to the exterior OF the boat a small
float, to which will be attached one
end Of a tube, the other end of which
connects with the air COMPRISING ma
ohinery. This float, which cast loose,
win carry the tube TO the surface and
give the boat direct connection with
the atmosphere. Eight dead lights on
each side OF the hull Will admit light
when she is run ming on the surface.
and when she is travelling submerged in
candescent lights will illuminate her
All her movements WIFI be controlled
from an electrical switchboard in the
coming tower.
The boat must be capable of descend
ing to a depth of 20 feet, but in actual
warfare il would not be necessary 10
go below 10 feet II she went below
feet she would be in danger OF being
crushed by the great pressure Of water
above.
Upon the success of this boat depends
the building OF two other submarines
which the secretary OF the navy is
empowered to have built. But the con-
tracts of these boates will not be award
ed until the efficiency OF the Holland
boot hos bas-, demon s-rsrad