Re: [PSUBS-MAILIST] O ring groves

["Jens Laland" <laland@artematrix.org>]

Alan

** It looks like the brass ring is just clamping down the rubber seal.
** It probably makes it easy to replace the rubber seal if it fails.

That is precisely what I think, too...

** O rings were invented in the 30s (so I learnt today) & I guess this
** was how they sealed things back then.

Actually, the keel for this submarine was laid in October 26th. 1962 and
put in active duty February 24th. 1966, so I guess someone still found
this method attractive... [The boat is a 'tree-cylinders' (triple-hull
submarine) designed by M. F. Gunning].

Best regards,
Jens Laland

**> http://traktoria.org/files/hatches/S805_Tonijn/





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