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Frank, Operating arms against water pressure has been an age old problem of
atmospheric diving suits (ADS). Freely moving joints were not available
until the Newt Suit arrived (http://en.wikipedia.org/wiki/Atmospheric_diving_suit)
with its special articulated joints. There is a great book that is a
quick read that documents the many efforts to overcome the forces exerted by
water pressure, see Ironsuit:
The History of the Atmospheric Diving Suit. R/Jay Respectfully, Jay K. Jeffries Andros Is., Bahamas Talk sense to a fool and he calls you foolish. - Euripides (484 BC - 406 BC) From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org] On Behalf Of ShellyDalg@aol.com Hi Vance. That makes more sense. As I was thinking of this thing,
the shaft will need to be able to extend/retract also, not just pivot like my
sketch. Maybe there could be a threaded shaft ( for extension ) inside the
rotating shaft ( which closes the finger ) to extend the arm which is
inside the pivoting shaft? Just trying to think of a way to avoid the water
pressure from pushing the shaft into the sub. Let me think about it for a while
and I'll try a new sketch. Frank D.
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