How to Make an Eye & Eye & Eye

rfwoodvt

rfwoodvt

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Looking to splice up a triple eye extendable bridge for my lockjack.

Attached is a sketch of what I'm looking to make. Lets assume for simplicity it will be made out of hollow braid, either tenex or maybe icetail.

Any thots on how to build it?

The key is that the upper two eyes need to be no more than 4 inches apart at the peaks of their eyes.

In some respects I was thinking of simply doing a whoopee eye for the top and then doing a locking brummel with the tail where it comes out and use that as the second eye.
 

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I would experiment with making and eye to eye then passing one finished eye through the braid and then again 2 picks away (mobius brummel, like all gear tech cord)resulting in three eyes, the third would be double the strands.
 
Hey Wort,

I'm not looking for adjustable, just looking to add a second eye at the end where I hook my lockjack.

That way I can extend it out and use it like a traditional climbing knot, hand over hand then bring it it and clip it to my harness short and use it like a traditional climbing hitch.

In a perfect world I like to find a way to splice in a loop like an alpine butterfly
 
I have tried alot of different ideas on this issue for my unicender, and I keep coming back to the simple daisey chain loop runner. Very easily adjusted and quick to get the right length. And all it takes is a $20 daisey chain and 3 biners.
 
Rick, a sewn webbing sling would be the way to go.
I spliced up a couple of double eye slings made from 3/8" Tenex tec and had them tested, (one [green] was at the Samson booth at TCI Expo 3 or 4 years ago). 3,800# was all I could get in the break test. Plus, if 1 eye is loading up, and 1 is loading down, it's gonna pull the splices in opposite directions, which is frowned upon.
In a webbing sling, you could have the eyes stitched to load 1 up and 1 down.
 
Norm, I hear you on the opposite pull. the trick will be to get both to pull on the rope fibers in the proper direction.

On your break tests was it the splice failing or the rope...the rope is rated at 5500# if I' not mistaken.

I'm almost thinking I could do a basic eye and eye and then insert a separate ripe into the upper eye and create a continuous loop from that.

sorta like the attached pic.of course the blue part would be buried in the black part of the eye.

Doing it this way would preserve the integrity of the eye & eye splice and keep everything together.
 
Rick,

FWIW, below is an option that sorta fits your diagram. Sometimes a <u>seized</u> eye works for a mid-line eye. Either leg can be loaded. Caution, though, if both legs are loaded they must be loaded in the same direction. I don't know if it will work for what you're doing ... just a thought ...

5395738865_ec2c17cf68.jpg
 
[ QUOTE ]

1. On your break tests was it the splice failing or the rope...the rope is rated at 5500# if I' not mistaken.

2. I'm almost thinking I could do a basic eye and eye and then insert a separate ripe into the upper eye and create a continuous loop from that.


[/ QUOTE ]

1. It broke at the locking brummel.
http://samsonrope.com/index.cfm?rope=173
Tenex Tec at 3/8's" is rated at 6,100#

2. How about an eye &amp; eye with an attached prusik loop
made from New England 5mm Tech cord?

I know I posted a pic of the double spliced eye on TreeBuzz if you are up to a "search".
 
[ QUOTE ]
2. How about an eye &amp; eye with an attached prusik loop
made from New England 5mm Tech cord?

[/ QUOTE ]

I was thinking that might do it especially if I first inserted it as a "core" within the eye of the tenex.

Or, when I finally get some, some icetail.
 
This is a fun one! I have 2 ideas. Does the third eye have to hang separate? Can you have 2 eyes stacked one on top of the other?

I don't think this is the place for the whoopie.

Can you show a pic of it in use? In my brain I can envision the setup.
 
Nick,

If I could show you a pic in use, I'd not need to figure how to make it!
grin.gif


In essence what I am trying to do is take a long tether and a short tether and make them out of, or into one dual purpose tether, leaving the long tether attached to the saddle and lockjack at all times and the short tether attached to the lockjack at all times but to the saddle intermittently.

This way I can extend and retract the longer tether without ever having to disconnect it or having to safety in first.

That make any more sense or easier to envision?
 
I think I know exactly what Nick is thinking and I was thinking the same thing is why I asked the purpose. What you can do is something similar to the anchor bridge system or the footlock prussik that Nick spliced for me a few years back. Basically it has multiple stacked locking brummels creating multiple holes for attachment.
 
the problem with the stacked brummels PU is that I'd be loading the throat of the splice. From what I gather that is a big no-no as it causes severe angular loading of the fibers.

When I discussed it with Rich H. he agreed.
 
What about 2 seperate cords, one long one short, whipped together where the eyes on one side are together and the other side the eyes are offset??
 
[ QUOTE ]
What about 2 seperate cords, one long one short, whipped together where the eyes on one side are together and the other side the eyes are offset??

[/ QUOTE ]

that pretty much is emerging as the way to go.
 
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