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<DIV><FONT size=2 face=Arial>To all.</FONT></DIV>
<DIV><FONT size=2 face=Arial>A few years back I was working on
a manipulator design but shelved it for lack of a suitable small multi
function hydraulic valve. I was looking for a small manually operated
valve. I was going to use air cylinders for their compact design and
reasonable pressure, plastic hoses rated to around 800 PSI and a multi section
manual operated control valve. I didn't want to design a build a valve
too. Has any one found something I missed? Maybe a gallon or less /
minute flow at maybe 300 to 600 PSI is what I was thinking about. </FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Hank, The arm you have is a beautiful design.
What are you using for control valves?</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thanks, Dan H.</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=Vbra676539@AOL.com href="mailto:Vbra676539@AOL.com">Vance Bradley</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=personal_submersibles@psubs.org
href="mailto:personal_submersibles@psubs.org">Personal Submersibles General
Discussion</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, January 24, 2014 11:42
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [PSUBS-MAILIST]
Manipulators</DIV>
<DIV><BR></DIV>
<DIV>Alan,</DIV>
<DIV>I've seen the discussion. The smallest sub I know of with a manipulator
on board is the Deepworker. No exfra tanks there. Metacentric vs CG works in
all directions. Yes, you get movement and no it's not a problem in my
experience. I did operate the bigger subs but also smaller ones, to include
Aquarius, briefly in a DW, plus three different K-boats, so speak with some
experience. You put everything you imagine on a small sub, you get a big sub.
In any case, It's probably best to think of a psub as a work in progress. Get
the boat done, go play, scratch head, get more work done, go play, scratch
head......and so it goes.</DIV>
<DIV>Vance</DIV>
<DIV><BR>Sent from my iPhone</DIV>
<DIV><BR>On Jan 24, 2014, at 3:20 AM, Alan James <<A
href="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</A>>
wrote:<BR><BR></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV>
<DIV
style="BACKGROUND-COLOR: #fff; FONT-FAMILY: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; COLOR: #000; FONT-SIZE: 10pt">
<DIV>Vance,</DIV>
<DIV>a couple of people have mentioned lately the problem of the shifting
of</DIV>
<DIV>balance as you reach out with a manipulator & have talked about
countering it with</DIV>
<DIV>trim tanks. Is it a big deal if you go nose down, tail up? Possibly
more of a problem working on a </DIV>
<DIV>vertical face than picking something up off the bottom. </DIV>
<DIV>Some of our subs will be a lot smaller than <SPAN
style="FONT-SIZE: 10pt">the working </SPAN><SPAN
style="FONT-SIZE: 10pt">subs you were in so the problem would
be </SPAN></DIV>
<DIV
style="BACKGROUND-COLOR: transparent; FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN
style="FONT-SIZE: 10pt">accentuated in our case.</SPAN></DIV>
<DIV
style="BACKGROUND-COLOR: transparent; FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN
style="FONT-SIZE: 10pt">Can you give us some of your experience on this
thanks & in your opinion is it worth messing</SPAN></DIV>
<DIV
style="BACKGROUND-COLOR: transparent; FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN
style="FONT-SIZE: 10pt">about with the trim while operating the
manipulator.</SPAN></DIV>
<DIV
style="BACKGROUND-COLOR: transparent; FONT-STYLE: normal; FONT-FAMILY: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-SIZE: 10pt"><SPAN
style="BACKGROUND-COLOR: transparent; FONT-SIZE: 10pt">Alan</SPAN><BR></DIV>
<DIV><BR></DIV></DIV></DIV></BLOCKQUOTE>
<BLOCKQUOTE type="cite">
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