Author Topic: Double Constrictors  (Read 1877 times)

dbj999

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Double Constrictors
« on: January 23, 2020, 03:12:46 AM »
I like the double constrictor(top).  ABoK #1252.  It Is great for starting a permanent lashing, etc.

I came across ABoK #1253 the other day (bottom).  No name is given.  It looks really cool.  Just wondering if anyone can tell me more about it.  Does it have a name?  Is it considered the same knot?  Does it have any advantages or disadvantages over ABoK 1252?  Or other knots?

Thanks in advance
 
 

Dan_Lehman

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Re: Double Constrictors
« Reply #1 on: January 25, 2020, 06:28:22 PM »
I came across ABoK #1253 the other day (bottom).  No name is given.
It looks really cool.  Just wondering if anyone can tell me more about it.
Does it have a name?  Is it considered the same knot?  Does it have any
advantages or disadvantages over ABoK 1252?  Or other knots?

Thanks in advance

I like #1253, too.  IMO, the two crossing parts
are more resistant to moving out of position
(and it looks better).

--dl*
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roo

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Re: Double Constrictors
« Reply #2 on: January 26, 2020, 06:48:52 AM »
I like the double constrictor(top).  ABoK #1252.  It Is great for starting a permanent lashing, etc.

I came across ABoK #1253 the other day (bottom).  No name is given.  It looks really cool.  Just wondering if anyone can tell me more about it.  Does it have a name?  Is it considered the same knot?  Does it have any advantages or disadvantages over ABoK 1252?  Or other knots?

Thanks in advance
What I find somewhat interesting in the ABoK #1253 is what happens when you slide it off the spar and carefully tighten the leftover knot.   It's very close to a pure trefoil knot.

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KC

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Re: Double Constrictors
« Reply #3 on: January 26, 2020, 10:54:09 AM »
I like #1253, too.  IMO, the two crossing parts
are more resistant to moving out of position
(and it looks better).

--dl*
====
.
Seems to me it would pro-vide 'squarer service';
>>1st especially with any side forces is in less premium position, that 2nd maintains.
i think this would play out in higher loading
AND extended usage, that binding seems used more used for than other knots.
that the logistics seen and smoother form
"Nature, to be commanded, must be obeyed" -Sir Francis Bacon
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dbj999

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Re: Double Constrictors
« Reply #4 on: February 02, 2020, 02:09:34 AM »


I like #1253, too.  IMO, the two crossing parts
are more resistant to moving out of position
(and it looks better).

--dl*
====

I agree Dan, I think it is more beautiful.  I haven't done extensive testing with it, however, it seems like it unties slightly more easily than ABoK 1252.
-dbj

dbj999

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Re: Double Constrictors
« Reply #5 on: February 02, 2020, 02:15:27 AM »
.
Seems to me it would pro-vide 'squarer service';
>>1st especially with any side forces is in less premium position, that 2nd maintains.
i think this would play out in higher loading
AND extended usage, that binding seems used more used for than other knots.
that the logistics seen and smoother form

KC I think you are right, like for the case of a rope bridge.  I think ABoK #1253 would be better for securing the middle cable of the bridge with the suspenders as it would resist sliding in any direction very well.
« Last Edit: February 02, 2020, 02:20:27 AM by dbj999 »

dbj999

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Re: Double Constrictors
« Reply #6 on: February 02, 2020, 02:18:59 AM »

What I find somewhat interesting in the ABoK #1253 is what happens when you slide it off the spar and carefully tighten the leftover knot.   It's very close to a pure trefoil knot.

Hi Roo, that might be a good name for it if it doesn't have one already.  The trefoil constrictor.
« Last Edit: February 02, 2020, 02:21:19 AM by dbj999 »

 

anything