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PLATE XIII A.
MODIFIED STEERING-ENGINE.

a steering-engine cylinder.
b admission-pipe.
c exhaust
d piston.
e valve.
f valve-rod,
h admission port.
i admission port channel.
j valve faces.
k valve faces.
l' valve faces.
l locking-bar.
m' locking jaws.
m working channels.
n working channels.
p exhaust channel.
q exhaust port.
t. valve-adjusting screw (replaces valve star).
u after stuffing-box.
v forward stuffing-box.
w cylinder head.
x valve-rod pin.
y limiting-plug.
plate13a
 

PLATE XIV.
LOCKING-GEAR.

H counter-spindle.
P counter-ratchet.
a bulkhead of immersion-chamber.
b hydrostatic piston diaphragm.
c locking-lever.
d locking-lever spring.
e releasing-lever.
f steering-engine valve-rod.
g releasing-lever spring.
h ratchet-bar.
i ratchet-bar spring.
k stop-bar.
l stop-screw.
m rock-shaft.
n counter-ratchet pawls.
r pivot of locking-lever.
s pivot of releasing-lever.
t ratchet-bar guide.
v eye of stop-bar.
w stop-screw nut.
x arm of sleeve-pivot of locking-lever.
z shank of locking-star.
plate14
 

PLATE XV.
TAIL.

FIG. 1. Vertical section.
FIG. 2. Horizontal section.

E shaft-tube.
U gear-box.
R It rudder.
S steering-rod.
UU propellers.
a tail-tube.
b forward cone of tail.
c after cone of tail.
dd top-blades.
ee bottom-blades.
ffff side-blades.
hhhh rails.
ii vertical vanes.
k forward gear.
ll intermediate gears.
m cross-head.
n after gear.
pp propeller-cones.
rr propeller-nuts.
t tail-nut.
u steering bell-crank.
v forward connection.
w balance connection.
x after connection.
zz tillers.
plate15
 

PLATE XV A.
NEW TAIL JOINT.

E shaft tube.
S steering-rod.
U U propellers.
a tail tube.
b forward cone of tail.
c after cone of tail.
dd top blades.
ee bottom blades.
k forward bevel gear and aft propeller shaft in one piece.
l intermediate bevel gears.
m cross head.
n after gear and forward propeller shaft in one piece.
pp propeller-cone.
rr proller nuts.
u steering bell crank.
v joint screws.
y' Obry gear steering-rod.
A' steering-rod stuffing-box.
B' steering-rod extension.
C' rudder connection.
D' rudder spindle yoke.
F'F' rudder spindle bearings.
E'E' vertical rudders.
plate15a
 

PLATE XVI.
DEPTH AND ROLLING-REGISTERS.

FIG. 1. DEPTH-REGISTER.
FIG. 2. ROLLING-REGISTER.

A inner tube.
B conoidal head.
C piston of hydrostatic pressure-gauge.
D spring of hydrostatic pressure-gauge.
E supply drum for paper.
F winding drum.
G spring pencil.
H forward section of outer tube.
I extension-sleeve.
K after section of outer tube.
L gear in after end of K.
M gear on winding drum.
N gear on shank of screw-fan.
P gear and pinion.
RR compound spindle-gear.
S screw-fan.
TT clamps on drums.
U spiral friction-spring.
a tube.
b conoidal head.
c screw-fan.
d axial shaft.
e cap in after end of tube.
f bar pendulum.
gg supports for pendulum.
h sleeve of pendulum-frame.
i sectional-nut.
k pivot of arm of i.
l double tilting-lever.
m spring pencil.
n extension-sleeve.
p adjusting-collar.
r porpoise-hide washer.
plate16
 

PLATE XVII.
DEPTH-CURVES.

FIGS. 1, 2 and 3, Cards as taken.
FIGS. 1a, 2a and 3a Curves on cards 1, 2 and 3 projected on a uniform scale.

plate17
 

PLATE XVIII.
DETAILS OF OBRY GEAR.

A frame.
B valve-body.
C steering-engine.
D air-cushion cylinder.
I impulse-sector.
N stop.
O stop-arm.
S trigger.
U position-holder.
V vertical rock-shaft.
W centering-arm.
ff valve-body studs.
h air-pipe to valve.
kk frame pivots.
ll frame-pivot clamping-screws.
ss vertical rock-shaft pivots.
tt holes for clamping-screws.
u air-pipe connection.
w centering-stud.
plate18
 

PLATE XIX.
DETAILS OF OBRY GEAR.

A frame.
B valve-body.
C steering-engine.
D air-cushion cylinder.
E frame lugs.
I impulse-sector.
L cam-shaft.
O stop-arm.
P horizontal rock-shaft.
Q position-arm.
R cocking-toe.
S trigger.
T wire-link.
U position-holder.
Y rock-shaft spring.
ff valve-body studs.
h air-pipe to valve.
i piston-rod flange.
kk frame-pivots.
tt holes for holding-screws.
w centering-stud.
u air-pipe connection.
y cam (lower end of cam-shaft).
plat196
 

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