<DIV style="font-family:Arial, sans-serif; font-size:10pt;">Is there a preferred method of releasing a big bubble?<BR><BR>--- VBra676539@AOL.com wrote:<BR><BR>From: Vance Bradley <VBra676539@AOL.com><BR>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><BR>Subject: Re: [PSUBS-MAILIST] magnetic coupler<BR>Date: Thu, 20 Mar 2014 21:03:12 -0400<BR><BR><DIV>The air bubble to the surface is a time honored practice for sub ops. Much cheaper than all the electronic tracking gear on Alvin.</DIV><DIV>Vance<BR><BR>Sent from my iPhone</DIV><DIV><BR>On Mar 20, 2014, at 7:57 PM, Alan James <<A href="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</A>> wrote:<BR><BR></DIV><BLOCKQUOTE><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 14pt; background-color: rgb(255, 255, 255);"><DIV><SPAN>Thanks Hank,</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>I was thinking it would come together fast. Might be a sod to get apart again.</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>Maybe you could use a smaller magnetic coupler for other functions on a submarine.</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>For instance it could be the axle in a drum of cord that the emergency buoy or an ascent</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>warning buoy could be released with. The power of the magnet would stop the drum from</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>rotating & releasing line, but if you pulled the magnet out of the housing slightly you could</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>control the release speed of the buoy & avoid a birds nest in the line. If you had a drive on it</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>it could be set to slip against the buoancy of he buoy but reel in line if there was slack.</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>I've thought that sending up a buoy before ascending would be a good way of warning your tender</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>or any other pleasure craft. The tourist subs in Hawaii send up a huge bubble of air. The tender spots</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>this & radios an acknowledgement that they are clear before the ascent.</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN>Alan</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 18.88px; font-style: normal; background-color: transparent;"><SPAN><BR></SPAN></DIV><DIV><BR></DIV> <DIV style="font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 14pt;"> <DIV style="font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 12pt;"> <DIV dir="ltr"> <HR size="1"> <FONT face="Arial" size="2"> <B><SPAN style="font-weight: bold;">From:</SPAN></B> hank pronk <<A href="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</A>><BR> <B><SPAN style="font-weight: bold;">To:</SPAN></B> Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> <BR> <B><SPAN style="font-weight: bold;">Sent:</SPAN></B> Friday, March 21, 2014 10:07 AM<BR> <B><SPAN style="font-weight: bold;">Subject:</SPAN></B> Re: [PSUBS-MAILIST] magnetic coupler<BR> </FONT> </DIV> <DIV><BR><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 12pt; background-color: rgb(255, 255, 255);"><DIV><SPAN>Alan,</SPAN></DIV><DIV><SPAN>The oil filter looking part is the barrier that keeps the water out of the sub. There is a magnet inside the barrier that is connected to the propeller shaft. When you assemble this thing you need to be real carful. The first time I slid the magnet assemblies together I almost lost a finger. If the propeller gets jammed, the magnet drive would slip like a clutch. It would take a lot though, my magnet drive is bigger than it needs to be. The propeller assembly can still drop off in an emergency, that is all the same still. I am pretty happy with the whole conversion, it can not leak! </SPAN></DIV><DIV><SPAN>Hank</SPAN></DIV><DIV style="display: block;"> <BR> <BR> <DIV style="font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 12pt;"> <DIV style="font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 12pt;"> <DIV><DIV dir="ltr"> <FONT face="Arial" size="2"> On Thursday, March 20, 2014 1:04:29 PM, Alan James <<A href="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</A>> wrote:<BR> </FONT> </DIV> <DIV><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue, "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; font-size: 14pt; background-color: rgb(255, 255, 255);"><DIV><SPAN>Hi Hank,</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;"><SPAN style="background-color: transparent;">The part that looks like an oil filter is the covering over a rotating
magnet?</SPAN><BR></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;"><SPAN>The second part is the full assembly that fits over the magnet (oil filter) portion.</SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;">What sort of force is involved when you put together or pull the two magnetic portions apart?</DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;">If you jammed the propellor on something the internal magnet would still rotate</DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;">but can it pull apart separating the propellor & it's obstruction from the coupler?</DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;">I've added a link to the coupler.</DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;"></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;"><SPAN><A href="http://www.psubs.org/projects/1327775450/gammarestoration/">http://www.psubs.org/projects/1327775450/gammarestoration/</A><BR></SPAN></DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;">Alan</DIV><DIV><BR></DIV> <DIV style="font-family: HelveticaNeue,;"> <DIV style="font-family: HelveticaNeue,;"> <DIV><DIV dir="ltr"> <DIV style="margin: 5px 0px; padding: 0px; border: 1px solid rgb(204, 204, 204); height: 0px; line-height: 0; font-size: 0px;"></DIV>
<FONT face="Arial" size="2"> <B><SPAN style="font-weight: bold;">From:</SPAN></B> hank pronk <<A href="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</A>><BR> <B><SPAN style="font-weight: bold;">To:</SPAN></B> Personal Submersibles General Discussion <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> <BR> <B><SPAN style="font-weight: bold;">Sent:</SPAN></B> Thursday, March 20, 2014 10:26 AM<BR> <B><SPAN style="font-weight: bold;">Subject:</SPAN></B> [PSUBS-MAILIST] magnetic coupler<BR> </FONT> </DIV> <DIV><BR><DIV><DIV><DIV style="color: rgb(0, 0, 0); font-family: HelveticaNeue,;"><DIV>Anyone that may be interested, I posted a couple of pictures of my magnetic drive coupler assembly. It is kinda chunky at about 9in long. I can NOT overpower
the coupler by hand, it is incredible how strong it is. I pressure tested the assembly to 625 psi for one hr with no issues. I will oil fill the shaft tube to lubricate the outboard shaft bearing and protect against corrosion. This was a simple two day conversion with minimal machining required.</DIV><DIV>Hank</DIV></DIV></DIV></DIV><BR>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR><BR><BR></DIV></DIV> </DIV>
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