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    Re: Artificial Horizon, K & E USN No. 6
    From: Bruce J. Pennino
    Date: 2012 Nov 26, 11:15 -0500
    Hi:
     
    I'm going to call the missing piece an "adapter", and it probably  is as simple as you describe.
     
    The box is not contaminated.The lable on the box says "Keuffel and Esser Co. New York, St Louis, Chicago and SanFrancisco". 
     
    The fact that it is called K&E USN No 6 ( on the hood)  implies that there were 5 earlier versions? Or, maybe in the 1940s-50s Yale had them numbered when they were purchased for their OCS program? I numbered all equipment in my labs so students would know that I would know which team broke something!
     
    When you find one of these on the internet it does not have a threaded corner....except for one I found with a verbal description but no picture available.

    Bruce
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
    ----- Original Message -----
    Sent: Monday, November 26, 2012 10:39 AM
    Subject: [NavList] Re: Artificial Horizon, K & E USN No. 6

    It could be as simple as a pouring spout or pipe.  Attach it to the basin.  Put the funnel on the bottle, align the spout by eye and pour the mercury in.

    In practice, it may have been easier just to use the opposite corner of the basin, leading to early loss of the spout.

    Is the interior of the box contaminated with mercury?

    Is there a nameplate on the box?

    regards
    Brad

    On Nov 26, 2012 10:33 AM, <eremenko@math.purdue.edu> wrote:

    It is also interesting to think of the procedure of returning mercury to
    the bottle:-)

    I would search the Internet (museums pages?) to see pictures of an AH
    of exactly this kind, before trying to make the missing part.

    Alex.

    > I agree it is hard to believe the inverting process.   It is easier to
    > explain with you having the pictures.
    >
    > The upper portion of jug..... the funnel,  was an intermediary piece in
    > the
    > filling process..... the missing transition piece screwed into the basin,
    > the funnel piece attached to the opposite end of the  transition piece,
    > and
    > then the funnel threaed onto the jug with the plug removed. During
    > preparation the jug was in its normal orientation, base down.Other pieces
    > was inverted.   Then all were rotated for the fluid to flow into the
    > basin.....maybe.
    >
    > Bruce
    >
    >
    >
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    >
    > ----- Original Message -----
    > From: <eremenko---purdue.edu>
    > To: <NavList@fer3.com>
    > Sent: Monday, November 26, 2012 9:20 AM
    > Subject: [NavList] Re: Artificial Horizon, K & E USN No. 6
    >
    >
    >>
    >> It is hard to believe that for filing the mercury
    >> the basin had to be inverted.
    >>
    >> I have another conjecture. That the upper portion of the jug served
    >> as a kind of funnel.
    >>
    >> Alex.
    >>
    >>> Hello:
    >>>
    >>> With  help from a friend, here are some photos of AH. Since I last
    >>> wrote,
    >>> I've found on-line more pictures of these devices, but none with a
    >>> basin
    >>> having a threaded connection in the corner.  The tip of the cone/jug
    >>> is
    >>> missing, and the small threaded connection on the interior tip is
    >>> partially broken off.  There is a fine hole in the broken tip/threaded
    >>> piece.
    >>>
    >>> I now believe the missing tip was a transition piece that allowed the
    >>> jug
    >>> of fluid to be directly threaded to the basin. The basin has a 3/8 inch
    >>> bolt thread. The top of the jug where you see the plug is a 7/8 inch
    >>> bolt
    >>> thread.
    >>>
    >>> I suspect the pouring process went something like this: 1. The jug was
    >>> removed from the carrying box and the missing transition piece was
    >>> screwed
    >>> into the basin. 2. Plug removed. 3 .  With the basin inverted , the
    >>> basin
    >>> was screwed onto the transition piece with  jug. 4. Then the entire
    >>> unit
    >>> was inverted with the Hg flowing into the basin.   After CN work
    >>> completed, the HG was poured back into the jug.  Note how the cone can
    >>> be
    >>> inverted so it acts as a funnel for the fluid going into the jug. The
    >>> corner of the basin has the pouring spout.   Maybe?? Pretty simple and
    >>> neat!?
    >>>
    >>> A friend has access to a machine shop and I'll have a brass transition
    >>> piece machined. I would love to know how the original  top piece and
    >>> any
    >>> other components looked. I've given up looking online and maybe I'll
    >>> contact the RPI library in Troy NY.  Maybe they have some old Gurley
    >>> catalogs.
    >>>
    >>> Has anyone ever used something like this?  Thoughts?
    >>>
    >>>
    >>> Bruce
    >>> ----------------------------------------------------------------
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    >>>
    >>>
    >>> Attached File:
    >>> http://fer3.com/arc/img/121212.artificial-horizon-0554.jpg
    >>>
    >>> Attached File:
    >>> http://fer3.com/arc/img/121212.artificial-horizon-0555.jpg
    >>>
    >>> Attached File:
    >>> http://fer3.com/arc/img/121212.artificial-horizon-0557.jpg
    >>>
    >>> Attached File:
    >>> http://fer3.com/arc/img/121212.artificial-horizon-0559.jpg
    >>>
    >>> Attached File:
    >>> http://fer3.com/arc/img/121212.artificial-horizon-0560.jpg
    >>>
    >>>
    >>> View and reply to this message: http://fer3.com/arc/m2.aspx?i=121212
    >>>
    >>>
    >>>
    >>
    >>
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    >>
    >>
    >
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    > View and reply to this message: http://fer3.com/arc/m2.aspx?i=121218
    >
    >
    >




       
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