Author Topic: Spiral Bowline  (Read 1560 times)

75RR

  • Guest
Spiral Bowline
« on: August 09, 2013, 02:34:13 PM »
.
« Last Edit: August 17, 2013, 11:45:35 PM by 75RR »

Dan_Lehman

  • Sr. Member
  • *****
  • Posts: 3751
Re: Spiral Bowline
« Reply #1 on: August 13, 2013, 07:41:09 AM »
The so-called "spiral bowline" (X. might urge "helical") would
look much handsomer had you not SS369'd it in ssetting
--that's an overly tight collar, IMO!  The favorableness
of wrapping the legs without the gratuitous "racking"
should be obvious --an efficiency of time & materials
with a better result!

I can add to this a photo, I think.


--dl*
====

xarax

  • Sr. Member
  • *****
  • Posts: 2781
Re: Spiral Bowline
« Reply #2 on: August 13, 2013, 10:08:42 AM »
   I do not see any "Spiral bowline" ! I can only see a locked bowline by a half hitch around the two eye legs, and then a final tucking of the Tail through the nipping turn, to have the nipping turn encircle 3 rope diameters, as we always do.
  As said for the previous attempt, the "Racking bowline", this knot would be sensible to ring loading - that would not jeopardize its security, but its regular, compact form. We can not know in avance the angle between the two eye legs - moreover, if this angle varies during the loaded life of the bowline, as it often happens, the collar around the two eye legs, once widened, would remain slag.
   Personally, as I have tied hundreds of different bowline-like loops till now and my brain memory disk is almost full of them, I am now asking more things, on a higher level, than security and strength - namely, easiness of inspection, and beauty ! This bowline can not be inspected easily, and her beauty can not pass through the eye of even a needle, I am afraid. Compare it to the Lee s locked bowline ( re-tucked Yosemite bowline ), a real gem !
« Last Edit: August 13, 2013, 10:10:55 AM by xarax »
This is not a knot.

Dan_Lehman

  • Sr. Member
  • *****
  • Posts: 3751
Re: Spiral Bowline
« Reply #3 on: August 13, 2013, 05:49:43 PM »
Here's a photo of some versions of the bowine in which
the tail binds the legs together by wrapping them before
itself being tucked through the central nipping loop.

Note that one can choose how the tail approaches/enters
this tuck, and from one direction seems a little more
*convenient* than the other.  The rightmost image is
devoid of "wraps" really, beyond the foundation turn,
but in their absence one can better see the additional
tucking of the tail back out through where they'd be
--the tail is the part ending in the upper-right corner.

The rightmost image also shows things far more
interesting!  (I should copyright/patent it, huh?!)


--dl*
====