International Guild of Knot Tyers Forum

General => New Knot Investigations => Topic started by: enhaut on April 17, 2014, 01:51:38 AM

Title: The gripping cat
Post by: enhaut on April 17, 2014, 01:51:38 AM
The gripping cat.
There is a lot of slide and grip structure available, some were discused at large in this forum.
Here is my offer.
I have presented a first version and utily of this structure in this thread;
http://igkt.net/sm/index.php?topic=4830.0
Trys ans tests lead me to this form of slide and gripping hitch.
Slick aluminium pole, wood, and rope were put to the test.
I my view it's a very tight hitch, here it's a 3 wraps around version.
Anyone who can tied a cat's paw is able to achieve a good result.
There is a how to do photo; the cat's paw needs to be well place before putting tension with both ends.
It is also easy to loosen up pulling the paw backward with the thumb.
A stopper (half knot with both working ends) can finish it up.
Please tied it and test it before sharing your view.
Title: Re: The gripping cat
Post by: enhaut on April 17, 2014, 06:32:24 PM
Dear xarax.
  Tied around a rope, it may be difficult to dress it correctly - and it seems that it does not grip as tightly as the humble and simpler same-number-of-wraps prusik.
It is indeed more diffucult to dress, practice solves this issue, but believe me it does grip tightly in fact there is a torsion applied to the rope when using the version with the working ends inside the wrap (see Photos).
I dont know if it's a good thing this deformation of the rope.
I have yet to decide which version (under or over) is best.
Thanks for the your observant comment.
Title: Re: The gripping cat
Post by: SS369 on April 17, 2014, 07:33:41 PM
If there will be consideration to use this as a slide and grip hitch, then the release-ability is very much a concern. Yes,let's say,  it can grip the parent rope very tightly, but can it be advance with some semblance of ease as needed?
I know that attribute, that it will release to be moved easily, is very important to me.

Those deformations can be a little like the checks of a ratchet and if it is deeply bedded the tight knot will stay where it is until you loosen it which can be sort of difficult if perhaps you are trying to advance up a rope.

FYI: Generally, for effective grip and slide hitches, you want a firm hitch rope on a soft main line and a soft hitch rope on a firm main line. A consensus is that the hitch line be some 60-80% of the main line size.
Of course there are some same size rope diameter grip and slide hitches as well.

SS
Title: Re: The gripping cat
Post by: enhaut on April 17, 2014, 08:35:43 PM
"Nobody has suggested this hitch as a slide-and-grip hitch !"
In fact I did!
It is a slid and grip hitch!
All you have to do is pull the cat's paw backward with your thumbs, then slide in place and relock again.
Again just looking at a picture is'nt enough, you got to try and learn.
Do I have to post another set of pictures to show this behavior?

It's a generous cat.
The paw accepts carabiner (here a device for in lieu of).
I dont know if this can be useful, but who knows...
In the last picture the 2 working ends wrap around after exiting the coil and pass through the carabiner in a locking fashion.
Title: Re: The gripping cat
Post by: enhaut on April 17, 2014, 09:11:16 PM
@ SS369
Une image vaut mille mots!
I hope it is self explanatory.
Title: Re: The gripping cat
Post by: SS369 on April 17, 2014, 09:22:26 PM
   You tend to see prusiks everywhere, and you tend to seek climbing hitches everywhere !  :) Nobody has suggested this hitch as a slide-and-grip hitch ! It is a decent, tight gripping hitch - which had no intentions to serve as a climbing hitch - or, for that matter, as a quickly-releasable hitch.

Guilty as charged!  ;)

I do see this as the OP proposed it (2nd line of first post here.) and I am going to try it off the ground in fact.

Fact is that there still is a large group of interested people (who read here and maybe don't contribute to discussions.) who are seeking the ultimate grip and slide hitch to use for their recreational times and some for during for their employment.
This type of use is discussed, seemingly forever, in various forums around the Web. There is always room for one more individual to "see prusiks everywhere".

Decent it is (enhauts offering) and I am not denigrating it at all! It was for his use that I added my 2 cents previously and if it is of no need, then whomever reads my words can skim over them. It's not like I wasted so very much of anybody's time.

SS
Title: Re: The gripping cat
Post by: SS369 on April 17, 2014, 09:29:29 PM
@ SS369
Une image vaut mille mots!
I hope it is self explanatory.

Hi enhaut.

Thank you for the additional picture. Prior to its posting I had tied your latest before I posted earlier about "seeing prusiks everywhere" :-)  ) I do tie most offerings to get a sense for them.

As for the one with the biner added to the knot. I am wondering if that is the best location for the clip in. It very well may cause the knot to loosen during use, when you want it to stay put. I'll have to give it a go with more than hand strength. Even bounce on it, which could represent an actual scenario during use.

Can you do any Safe testing using pretty heavy loading?

SS
Title: Re: The gripping cat
Post by: enhaut on April 17, 2014, 11:04:44 PM
@SS369 @xarax
There is a new climbing indoor facility beeing built right now about 600 yards from my place.
I intend to test some hitches there, will see what's behaving well then.
Title: Re: The gripping cat
Post by: SS369 on April 17, 2014, 11:11:57 PM
@SS369 @xarax
There is a new climbing indoor facility beeing built right now about 600 yards from my place.
I intend to test some hitches there, will see what's behaving well then.

I am reading fun!
Take some knot selfies.  lol  ;)

SS