NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Artificial Horizon, K & E USN No. 6
From: Alexandre Eremenko
Date: 2012 Nov 26, 10:31 -0500
From: Alexandre Eremenko
Date: 2012 Nov 26, 10:31 -0500
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 > > > > > > > > > > > > > > > ----- 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 >>> ---------------------------------------------------------------- >>> NavList message boards and member settings: www.fer3.com/NavList >>> Members may optionally receive posts by email. >>> To cancel email delivery, send a message to NoMail[at]fer3.com >>> ---------------------------------------------------------------- >>> >>> >>> >>> 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 >>> >>> >>> >> >> >> >> >> > > > > > > : http://fer3.com/arc/m2.aspx?i=121218 > > >