NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Bruce J. Pennino
Date: 2013 Jan 8, 17:44 -0800
Hello:
Attached are photos of repaired AH. The work was done by a friend who is a very talented mechanical engineer and skilled machinist. He is the director of one of the largest commercial fluid meter facilities in the world.
He identified the jug and funnel material as cast iron by the fracture and exposed grain of the broken spout. His first thought was to drill out old spout, heat the funnel, and slide in a new spout which would be held by the contracting metal. He decided that the carbon steel new spout might fracture the cast iron funnel.
Instead he drilled out the old spout without altering the inside of the funnel. Threaded new hole and inserted new spout with a "locking" material that would prevent unthreading. Pretty cool! To protect the spout, he made the shiny nose cone from a cast iron old window sash weight.
When warmer, some starry night I'll try this out and compare results against a mirror.
Bruce
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