|
Ran across this 1971 patent. It describes a method of mating a hemispherical viewport to the pressure hull. It's applied to a *glass* viewport (!?) so I'm not sure how applicable the choice of gasket materials is to acrylic hemispheres.
Warm Regards
Shawn
*****
"Call nothing thy own except thy soul. Love not what thou art, but only what thou may become. Do not pursue pleasure, for thou may have the misfortune to overtake it... Live in the vision of that one for whom great deeds are done ..." Man of LaMancha, D. Wasserman |