DescriptionObry gyroscopic gear installed in Whitehead torpedoes.jpg
English: The Obry steering-device found in Whitehead torpedoes. The gyroscope is labelled F, G, H. Published in The Whitehead Torpedo U.S.N., 1898, a manual for the most important early torpedoes used by the U.S. Navy. The book covers the 45c/m. x 3.55m. Mark I, Mark II, Mark III and and 45c/m. x 5m. Mark I.
Details of Obry Gear:
A frame.
B valve-body.
D air-cushion cylinder.
E frame-lugs.
F gyroscope wheel.
G inner ring.
H outer ring.
I impulse-sector.
M boss.
O stop-arm.
V vertical rock-shaft.
W centering-arm.
X boss arm.
Y rock-shaft spring.
Z counter-weight.
a control-pin.
b valve-arm.
c valve-plug.
dd valve-plug adjusting-screws.
ee valve-plug springs.
g valve guard.
h air-pipe to valve.
j steering-rod coupling.
ll frame pivot clamping-screws.
nn outer-ring pivots.
oooo outer-ring clamping-screws.
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