[PSUBS-MAILIST] Gamma hatch

[Brian Cox via Personal_Submersibles]

Hank,
      I think I'm going to have a shop down the road turn that elliptical head so that the edge comes right in the middle of the bottom of the ring, still need to talk to the welder to see what kind of edge he wants.  With the hatch I'm thinking of welding a large pipe segment on there because there's nothing to grab onto for the lathe.

Brian 

--- personal_submersibles at psubs.org wrote:

From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Gamma hatch
Date: Sun, 30 Nov 2014 07:57:38 -0800

Brian,
I will look forward to a picture of your CT and hatch.  In particular I would like to see how you transition from the elliptical portion to the 1 1/2in wide ring.
Hank
--------------------------------------------
On Sun, 11/30/14, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] Gamma hatch
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Sunday, November 30, 2014, 10:44 AM
 
 Hi Hank,
            I bought two
 stainless rings 1/2" thick by 1 1/2" wide (18" id). Which
 will be welded on to the conning tower and the hatch, then a
 o ring groove put in the hatch side.  With the drop I
 was able to get 6  - 6" disks which I'm going to make
 into electrical inserts that will go into two of my
 viewports.  
   Conning tower getting welded today ( 8 viewports) and
 also working on the other viewports on the sphere, got two
 welder friends that I have working on them, both 30+ years
 of commercial welding experience !
 
 Brian  
 
 --- personal_submersibles at psubs.org
 wrote:
 
 From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
 Subject: Re: [PSUBS-MAILIST] Gamma hatch
 Date: Sun, 30 Nov 2014 05:39:19 -0800
 
 Brian,
 What did you do for the hatch seat on the conning
 tower.  Is it stainless or did you do like Gamma has, a
 layer of stainless welded on.  
 Hank 
 --------------------------------------------
 On Sat, 11/29/14, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 
  Subject: [PSUBS-MAILIST] Gamma hatch
  To: "PSubs" <personal_submersibles at psubs.org>
  Received: Saturday, November 29, 2014, 8:30 PM
  
  Hank,           
  Do you know how big the shaft is that goes through the top
  of your hatch?  Have you every had to disassemble it
  ?  My hatch is pretty much identical to Gamma's,
  I'm in the process of cutting in a little viewport in
  and also that rotating hatch closure shaft / thru  hull
  deal.   Seems like at least a 3/4" shaft
  would be in
  order. Brian
  
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