RE: [PSUBS-MAILIST] Store Front and Product Survey

[irox <irox@ix.netcom.com>]

Hi Jon,

yes, I think we are talking about the same thing, the metal the
acrylic is mounted in.  I am using the Stachiw book, but it has
gaps in about the viewport housings/thru-hull mounts.  Things like
"K is selected on the basis of structural analysis" (where K is
some value I want to know), but no other information obtaining
or estimating K.

I'm currently researching spherical sector viewports with a
square edge.  The lip (side wall) of the viewport housing/thru-hull
will take part of the pressure of the viewport, as well as the
flat, contact surface.  (For flat viewports, the flat contact
surface takes all the pressure and not the lip, which is
just used to keep the viewport in place and for attaching the
retaining ring).  I cannot find information in the Stachiw
book about how thick the lip needs to be.

I plan to over build, but I'd like to know by how much I'm
over building.

Cheers,
  Ian.

-----Original Message-----
>From: Jon Wallace <jon@psubs.org>
>Sent: Mar 6, 2008 3:36 PM
>To: personal_submersibles@psubs.org
>Subject: RE: [PSUBS-MAILIST] Store Front and Product Survey
>
>Hi Ian,
>
>When you say "viewport frames", are you refering to thru-hull mounts for viewports?  If so, Stachiw's book has info on that.
>
>Jon
>
>
>-----Original Message-----
>From: owner-personal_submersibles@psubs.org
>[mailto:owner-personal_submersibles@psubs.org]On Behalf Of irox
>Sent: Thursday, March 06, 2008 2:27 PM
>To: personal_submersibles@psubs.org
>Subject: Re: [PSUBS-MAILIST] Store Front and Product Survey
>
>
>
>Hi Ray,
>
>complete sets of standards would be nice.  I find myself spending
>lots of money on what turns out to be a couple of sheets of paper
>which refers to some other set of standards without much useful
>information for me.  If somebody was selling a complete package,
>or just the psubs relevant material, this would make my life
>easier.
>
>Only if there was a book I could order about designing viewport
>frames.... (is there one?)
>
>Cheers,
>  Ian.
>
>
>
>
>
>
>************************************************************************
>************************************************************************
>************************************************************************
>The personal submersibles mailing list complies with the US Federal
>CAN-SPAM Act of 2003.  Your email address appears in our database
>because either you, or someone you know, requested you receive messages
>from our organization.
>
>If you want to be removed from this mailing list simply click on the
>link below or send a blank email message to:
>	removeme-personal_submersibles@psubs.org
>
>Removal of your email address from this mailing list occurs by an
>automated process and should be complete within five minutes of
>our server receiving your request.
>
>PSUBS.ORG
>PO Box 53
>Weare, NH  03281
>603-529-1100
>************************************************************************
>************************************************************************
>************************************************************************
>




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************