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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Brian,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Not if the sphere is a hemisphere. If it is a lesser part of a sphere then it depends on the angle of joining. Theoretically the sphere would only need to be half the thickness of the shell. <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-NZ style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><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";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Personal_Submersibles [mailto:personal_submersibles-bounces@psubs.org] <b>On Behalf Of </b>brian<br><b>Sent:</b> Wednesday, 8 January 2014 10:46 a.m.<br><b>To:</b> Personal Submersibles General Discussion<br><b>Subject:</b> Re: [PSUBS-MAILIST] conical transitions<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Would the same apply to a cylinder to sphere transition? On mine I'm planning on a 1" thick collar welded to the sphere then the cylinder to that .<br><br>brian<br><br>-----Original Message-----<br>From: "Hugh Fulton" <<a href="mailto:hc.fulton@gmail.com">hc.fulton@gmail.com</a>><br>Sent 1/7/2014 12:45:24 PM<br>To: "'Personal Submersibles General Discussion'" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><br>Subject: Re: [PSUBS-MAILIST] conical transitions<span style='color:windowtext'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi All, </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I have been through that problem and you have to have a good sized stiffener there of some sort. I could not afford the room as an intrusion of internal space.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is the solution and the angle of the additional reinforcing cone is 22.5 degrees being half the 45 degrees of the cone. This survived an FEA analysis. The end of the cone is where my window was attached.</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This was a 48” shell . Regards, Hugh</span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=1230 height=644 id="Picture_x0020_1" src="temp/image003.png@01CF0C56.5A662C80@image003.png_image003.png"></span><o:p></o:p></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><p class=MsoNormal><span lang=EN-NZ style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p></div><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><strong><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></strong><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> Personal_Submersibles [<a href="mailto:personal_submersibles-bounces@psubs.org">mailto:personal_submersibles-bounces@psubs.org</a>] <strong><span style='font-family:"Tahoma","sans-serif"'>On Behalf Of </span></strong>Jon Wallace<br><strong><span style='font-family:"Tahoma","sans-serif"'>Sent:</span></strong> Wednesday, 8 January 2014 8:10 a.m.<br><strong><span style='font-family:"Tahoma","sans-serif"'>To:</span></strong> Personal Submersibles General Discussion<br><strong><span style='font-family:"Tahoma","sans-serif"'>Subject:</span></strong> Re: [PSUBS-MAILIST] conical transitions</span><o:p></o:p></p></div></div><p class=MsoNormal> <o:p></o:p></p><div><p class=MsoNormal style='margin-bottom:12.0pt'><br>Joe, ABS says stiffened cones are to have their ends bounded by two heavy stiffeners each located as close as possible to the point of cone-to-cylinder transition.<br><br>The stiffener is not located on the weld line but as close as possible to it.<br><br>Jon<br><br><br><o:p></o:p></p><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Tuesday, January 7, 2014 5:30:16 AM, Joe Perkel <a href="mailto:josephperkel@yahoo.com"><josephperkel@yahoo.com></a> wrote:</span><o:p></o:p></p></div><div><div id=yiv8127102616><div><table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0><tr><td valign=top style='padding:0cm 0cm 0cm 0cm'><p class=MsoNormal>David,<br><br>Is that T ring directly on the weld line, or offset any distance?<br><br>Joe<a href="http://overview.mail.yahoo.com/?.src=iOS" target="_blank"><br><br>Sent from Yahoo Mail for iPad</a><o:p></o:p></p></td></tr></table><div id=yiv8127102616yqt98104><div id="yiv8127102616_origMsg_"><div><p class=MsoNormal><span style='font-family:"Helvetica","sans-serif"'> </span><o:p></o:p></p></div></div></div></div></div></div></div></div></div><p class=MsoNormal><br><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9257 (20140106) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><o:p></o:p></p><p class=MsoNormal><span style='color:windowtext'><br><br>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9257 (20140106) __________<br><br>The message was checked by ESET NOD32 Antivirus.<br><br><a href="http://www.eset.com">http://www.eset.com</a><o:p></o:p></span></p><pre>_______________________________________________<o:p></o:p></pre><pre>Personal_Submersibles mailing list<o:p></o:p></pre><pre><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><o:p></o:p></pre><pre><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><o:p></o:p></pre><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9261 (20140107) __________<o:p></o:p></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p>The message was checked by ESET NOD32 Antivirus.<o:p></o:p></p><p class=MsoNormal><span style='color:windowtext'><o:p> </o:p></span></p><p><a href="http://www.eset.com">http://www.eset.com</a><o:p></o:p></p></div> <BR><BR>__________ Information from ESET NOD32 Antivirus, version of virus signature database 9261 (20140107) __________<BR><BR>The message was checked by ESET NOD32 Antivirus.<BR><BR><A HREF="http://www.eset.com">http://www.eset.com</A><BR> </body></html>