Christian,

Double D-rings were the first quick release system used in diving. It
consists of two D-rings secured together in a loop on the end of a strap.
The opposite end (loose end) of the strap is feed through both and then a
loop of the remaining end is feed through the back D-ring. Although secure,
it leaves the end of the strap tab sticking out which can be pulled to
quickly release the piece of gear. It definitely is NOT quick release! This
was the predominant quick release up until the late 60's when the stainless
steel buckle came into vogue.

Look in The New  Science of Skin and Scuba Diving, Chapter 5, "Basic Skin
and Scuba Equipment" for a picture.If you don't have the book go to your
library, most still have a copy.

Dave



----- Original Message -----
From: Christian Gerzner <christiang@cc*.co*.au*>
To: <techdiver@aquanaut.com>
Cc: <techdiver@aquanaut.com>
Sent: Friday, September 15, 2000 6:09 AM
Subject: Re: Tech/Hogathian/DIR diving in chicago area


> CaptnDale@ao*.co* wrote:
> >
> > In a message dated 9/14/00 2:21:12 AM Central Daylight Time,
> > mat.voss@t-*.de* writes:
> >
> > << If you really insist on quickconnects, chose stainless steel ones.
Or
> >  better leave it , in favor of double D- Rings . >>
> >
> > Actually, that is not a bad idea at all.
> (snip)
>
> OK, stupid here will pop the question.
>
> So just what are double D-Rings?
>
> Which, presumably, are quickconnects _as well as_ quick*dis*connects?
>
> Christian
> --
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