Sasch,
On inernet I foud for the Marean-Kielhorn Director an US patent, number 2440827.
The patent is dated May 4, 1948 but filed Aug 20, 1945.
Sepatate I send it to you.
Is this the instrument you have?
If so I would be pleased to receive the instructions if you could make an
electronic copy of the pages.
Best wishes, Fer.
Fer J. de Vries
De Zonnewijzerkring
http://www.de-zonnewijzerkring.nl
Molens
http://www.collsemolen.dse.nl
Eindhoven, Netherlands
lat. 51:30 N long. 5:30 E
- Original Message -
From: sasch stephens
To: frankev...@zooplankton.co.uk ; sundial list
Sent: Wednesday, August 26, 2009 8:01 PM
Subject: lifesaving sundial
To all of you sailor dialists, I have an instrument called a Marean-Kielhorn
Director. As I understand it, it was a part of every U.S. lifeboat during
WWII. It says that it is an instrument for determining direction at sea. It
appears to use a system of sighting the position of the sun to do this. Has
anything been written about this among the Sundial community? I have an
instruction booklet for it, but haven't figured out how it works since the
central pivot is frozen. Perhaps there's a way to put the instructions online
for others to appreciate. sasch stephens
> Date: Wed, 26 Aug 2009 18:40:35 +0100
> From: frankev...@zooplankton.co.uk
> To: sund...@rrz.uni-koeln.de
> Subject: symbols for sunrise and sunset
>
> Greetings, fellow dialists,
> An ancient sea captain of my acquaintance suggests, for sunrise, an open
> circle with a short straight line tangental to the bottom of the circle
> and for sunset a similar circle with a tangental straight line at the top.
> Frank 55N 1W
> P.S. So many sundialling sailors! I'll try to reply to each. What an
> oddly large interest in an instrument totally useless at sea.
>
> ---
> https://lists.uni-koeln.de/mailman/listinfo/sundial
>
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