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</o:shapelayout></xml><![endif]--></head><body lang=NL link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Hank,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Bolting somethin on a spher without welded reinforcing is normally no-go. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Connecting 2 hemi’s with a 0-ring should be possible with that thickness. Centring ring would be useful..<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Some hatch seals are made by just machine a 0-ring groove in a thick elliptical head.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>The sphere segments of one version of the Trieste were glued! The thick CrMo steel was impossible to weld.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Emile<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Van:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>Namens </b>hank pronk via Personal_Submersibles<br><b>Verzonden:</b> vrijdag 11 november 2016 2:52<br><b>Aan:</b> Personal Submersibles General Discussion<br><b>Onderwerp:</b> [PSUBS-MAILIST] bolt on rings<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div id="yui_3_16_0_ym19_1_1478827787399_7512"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica","sans-serif";color:black'>Sean, I know we talked a bit about this idea before but I need a refresher. Can I machine a hole in a heavy sphere and insert a hatch land\reinforcing ring assembly that bolts to the sphere. It looks like Karl Stanley may have done that with his front dome. This idea if feasible makes building a deep diver more realistic. I am thinking of trying this on my current sphere just to see if I can do it. Better to screw up a cheap sphere first. ;-)<o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1478827787399_7512"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica","sans-serif";color:black'><o:p> </o:p></span></p></div><div id="yui_3_16_0_ym19_1_1478827787399_7512"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica","sans-serif";color:black'>Next question, when I look at the Deep Rover sub, it has two hemispherical domes coming together on a two sided land. I am sure the land also gives the domes side support. Why would this design not work with two heavy steel hemispherical domes. I am talking 3 to 4 inches thick. The steel domes can easily be machined with a flat land and o-ring grooves. The idea is to eliminate a very costly weld and it would be pretty darn nice to build with the top half of the hull removed. <o:p></o:p></span></p></div><div id="yui_3_16_0_ym19_1_1478827787399_7512"><p class=MsoNormal style='background:white'><span style='font-size:7.0pt;font-family:"Helvetica","sans-serif";color:black'>Hank<o:p></o:p></span></p></div></div></div></body></html>