Add more hitches,
THEY are not hitches. They are nipping loops, more or less like those we have on the bowline, Gleipnir, etc.
People often do that mistake, and confuse the two distinct, different in function mechanisms, beause they "look" the same. This is happening also because people do not see, or try to imagine, what the "Main line" rope "feels" when it goes through the one or the other mechaism/rope formation:
In a hitch, a rope (or a pole) "feels" mainly compression, compressive stress. In a nipping loop, a tensioned rope "feels" mainly shear, shear stress. In materials science, those two thngs are quite different.
Talk about splitting hairs --how about playing semantics?
The nipped line feels compression of the turn around it,
as it will in e.g. the midshipman's hitch (a noose-hitch).
It feels this *grip* try to hold and stop its (main line's)
movement through it (as opposed to being unmoving).
Regarding slippage : If the B 1 might slip in some materials, tie the B 2 !
But I'm already well elongated for this task of end-2-end joining,
and my nearer-to-anchoring-knot nips are not getting tensioning
as it is --why would I want to add any more of such unhelping
structures? Rather, these turns need greater loading on them
for greater tightening & compression & thus nipping, but that's
not coming.
... there is a relation between the distances between
the nipping loops and the amount of compaction those loops
make under load.
Yes, but negligible and insignificant, compared with the whole mechanism. You are splitting hairs here !
Hardly. The difference
must be significant, or how else
could any of these seized structures be better than just their
seizing along (e.g., no carrick bend of any sort in the structure).
Use the old seized-eye w/turNip as a case : how can this be stronger
than just the seized eye w/o ?
This is what I don't understand. Unless there is some difference in
tension as I suggest (which lessens the load upon the seizing).
(Well, hmmm, I suppose that in the no-turNip case around a pulley
wheel (diminishing in effect as friction rises in whatever the eye surrounds)
there would be 100% load of tail into seizing, essentially being an
end-2-end joint (the S.Part-size eye leg you see not really resisting);
with great friction at the eye end, then both legs resist and the
loading of them into the seizing is more 50/50%, with 100%
going away into the S.Part, of course. Putting in the turNip then
helps to convert the structure to the latter state. But it seems
that the seizing isn't really expected to take even 50% tension?)
With seizings, one has to be sure that the lengths ... are exactly the same,
so that the two links are loaded simultaneously and evenly ... .
With the Double Overhand or Strangler "neckband", that can slide freely alongside the "Main line",
this is not happening, and the bend is almost self-adjusting,
so that the two links block the "Main line" that passes through them at the same instant, and with the same nipping power. With this, the bend can reach the maximum of its strength because, up to the breaking point, it uses the sum of maximum of each individual s link strength potential.
Ahem, please read my report of loading this supposed marvel of
constuction and think about that --there was ONE turNip that did
any sort of gripping, only slightly slipping, and all others (and all
of one line's) served only to consume rope & provide decorations
for the armchair (sitting unsuspended, i.e.) theorist to muse about.
When the strangle doesn't hold --and it's a poor friction hitch--,
there is little tension put to the nearest turNip, which in turn doesn't
nip, and so on to the next nearest. As tension rises, only the two
--or as I found in my test,
one (so, just one rope's)-- turNips
centermost will tighten and nip, supported by somewhat non-zero
nipping of its supporting turNips.
Testing now in a small (3mm?) natural-fibre 6-strand cord and in
5/16" laid PP, both with 4 turNips per side, I get better results.
But I still think that as "push comes to shove" and esp. in the
latter material, slippage up to the centermost turNips will occur,
and the strength --if holding to rupture-- will not be great, based
on the gripping single turNip.
The B thing is here to stay !
Barring any further "0"s & deletions,
you might have nailed the truth fully, literally, w/"here"
--in this forum, and not in the wild.
--dl*
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