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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: 
> To: 
> 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
>>>
>>>
>>> : http://fer3.com/arc/m2.aspx?i=121212
>>>
>>>
>>>
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> : http://fer3.com/arc/m2.aspx?i=121218
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