DDK, that URLink --lengthy though it be-- didn't work for me
(or not yet) : claimed it was either NA or I'd seen too much.
Maybe ..., BUT I'm thankful for the book reference, as it seems
one that could be added to a great many knotters' libraries,
for something quite different from the usual (and maybe better
done)!
Nickles, you still didn't clearly indicate the disposition of the
knot, but I think I've got it (two chances
) --those squiggly,
cut-off indicators are towards the bound object, upper, as in
the schematic you followed the knot with. --and that works,
anyway.
Which brings back old memories, for I discovered this as my
"#56''' " qua eyeknot (not to be drawn up so tightly as your
binder (for
ring-loading). --and then followed my notes
with recognition to Eastern sources, though via Brion Toss's
Rigger's Apprentice (pp. xviii/0 [i.e, between "xvii" & "1"], 331, & 381),
it comes out Chinese, not Japanese. (Sounds like a myth ... .)
Now, to the problem at hand. Nickles complains ... :
Unfortunately, even when locked, the Dines knot tends to slide back when the loop is under tension; however, it is useful to close the wound temporarily, prior to backing it up with (perhaps) some additional knots
I don't think that this is an accurate analysis of the failure.
(Btw, in some abstract of a related medical-knotting article,
it was stated that a failure was slippage of 2mm (!).)
What I see happening is that the bight/turn around the
in-tension-until-locking part simply doesn't get tensioned
and drawn snug by
tightening via the 2nd end, and so
constitutes slack awaiting expansion of the bound object,
which then pulls it tight with the egress of material.
.:. I'm skeptical at trying to redress this w/back-up knotting.
Or at least I want to try to find a
direct solution, if possible.
My first general plan was to suggest employing a 2nd line,
to tie some gripping hitch to the two ends of the binding line,
which binder-hitch would be slid down into place and then
tightened around the binding line ends; then, tie off those
ends in a usual manner of successive/alternating half-hitches.
So, the binder-hitch would need to serve as a good *choke*
against the
ring-loading of the binder, and as a good gripper
of the binder ends temporarily as they were further secured.
But I might have a more "direct" solution, using a
ProhGrip(aka
"Blake's hitch") with a modification to enable it to be
locked once set. As gripping hitches go, the
ProhGrip works well
in like diameters (line to itself, in contrast to other such hitches
that are typically used in a smaller line gripping a larger one),
which is what is wanted here. The modification I see at the
moment is to reeve the knot's tail through final turn and the
gripped line, to enable it to capsize its final turn and bend and
bind the line back against the knot --the bend, u-turn, being
what will prevent slippage. Further, the angle of incidence
of the gripping knot to the gripped line is good for any wide
angle (relatively large object) --not so much an issue re the
"choke", as it would be for the knot I mused about above.
I don't have any 0.3mm (!!) stuff lying about to play with
--or maybe I do, but don't have my microscopic spectacles
on to see it. One quick fiddling in 2mm (giant, hawserish!)
very soft-laid PP looks promising, at least.
I ID it : #20111021a00:44 (yes, this is my time, not GMT;
"a" = "sAturday").
QED?!
--dl*
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