Author Topic: Double Constrictors  (Read 675 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
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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 »