Author Topic: Ashley's Bend #1452 and Its Ilk  (Read 17783 times)

Dan_Lehman

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Re: Ashley's Bend #1452 and Its Ilk
« Reply #15 on: February 11, 2011, 07:14:30 PM »
I had thought to just post a couple photos of #1452
...

There are various ways to dress 1425; here, the collars were left large
enough that they draw snug to the body....
--dl*
====

And at this date, 2011-Feb, there has been much discussion about
this knot, with surprising misunderstandings about its characteristics,
its variety --esp. its jam-resistant dressing.

Now, here's a more difficult dressing to achieve, to add to the others,
some of which are not desired by easily reached by ubiquitous, not
very good, tying methods.  This version orients the crossing points
of the overhands' collars on the other side of the *vortex* circle,
which bulks up the knot into awkwardness, but, hey, it's a variation.


 ;)

Dan_Lehman

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Re: Ashley's Bend #1452 and Its Ilk
« Reply #16 on: February 11, 2011, 07:22:08 PM »
A knot that was brought to some attention by a fellow who invented it
(for himself) about a decade ago, and who named it the "Bulldog" bend,
is Ashley's #1425 ... .  I like this bend.
...
--dl*
====

Here are another couple photos of Ashley's #1425 --or, I should say,
some VERSION of that inspiration, as his illustration really seems to
leave the ends more on the ends than center of the knot.  Well, there
are variations to be found, and I'll follow-up with some.

This knot can be drawn up snug for slack-security, or left rather loose,
for very easy untying.  Although in a very slick material such as HMPE
12-strand rope, it might be that any looseness will be lost to the fluid
transmission of tension throughout the structurew --this was seen by me
in a test of a similar eye-knot.

--dl*
====

Dan_Lehman

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Re: Ashley's Bend #1452 and Its Ilk
« Reply #17 on: February 11, 2011, 07:25:45 PM »
And here are some variants on the Ashley #1425 theme.

 :)

Dan_Lehman

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Re: Ashley's Bend #1452 and Its Ilk
« Reply #18 on: February 17, 2011, 05:57:56 PM »
Here are two perspectives on the same knot token, which I guess I
must have loaded to roughly 300 # or so.  ...

There are various ways to dress 1425; here, the collars were left large
enough that they draw snug to the body.  This seems to lessen the
deflection of the S.Part at the point of contact w/the collar, and I'm
guessing helps strength & chafe.  ...

The ropes are, resp. of black & yellow roughly 1/2" dia., a hard-laid
PP (polypropylene) and a firm old double-braid of either nylon or polyester.
(You wouldn't want to have to splice the black rope, though this piece
was found with a 2-tuck eye-splice in it (splicer probably said "eNUFF!"
at that point!).)
Which goes to the point of suggesting that were these ropes replaced
by some with pretty compressible cross sections, the knot geometry
would be different.  ...

--dl*
====

Repeated for easy comparison in this post is the large-collars #1452
and newly added here is a small-collars #1452.  As noted above,
the former was done expressly to achieve the collars-around-body
state, which state however can be jammed (YMMV) --not to confuse
though, this is NOT "the jamming form" referred to elsewhere : that
version orients the tails differently (on opposite sides of each other).
With smaller collars, they are not able to open and wrap around and
jam onto the rest of the knot.  Conceivably, as with a bowline or
sheet bend, these collars in an elastic material can tighten around
a diameter-diminished (by tension) S.Part and give a sort of lock
on relaxation, preserving tension in the knot.

--dl*
====
« Last Edit: June 22, 2012, 06:56:00 PM by Dan_Lehman »