New Idea

Mark Chisholm

Mark Chisholm

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Here's a photo of a new idea. It is a pigtail. It has different possibilities, but I'll wait to hear from you guys about what you think.


Here's a photo of a Tulip that had a bad leader. The resistograph said "no good". So, we removed it. It was about 70' tall and had two cables. Anyway, I decided to use the pigtail for my redirect of the rigging line. What do you think?
 

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MArk , how is that pigtail attached ? Does the bull rope load all three coils or does it tend to load one end? Is there a potential for the pigtail to rotate and then the bull rope be in only two of the coils ? JUst curiouse.

Thanks
Greg
 
Mark,
I've seen one of those once. I think it was 2 or 3 Isa/s ago. At that time it was a protype. Have they ever decided to manufacture the item?

W/ all three coils rubbing the rope. I'd think there would be quite a bit of friction up there. I may be seeing this wrong but wouldnt' the block and pigtail work best in an oposite configuration. As it looks to me as though the pigtail will be taking most of the load.
 
Interesting idea.

It's rather a ring that's open to allow installation anywhere on a line. I suppose it's spring steel and that the rope would break before the coil would straighten and drop the line. If the extended loop were mid-coil, it would also allow for an increased working-radius for the line while providing a certain amount of shock-absorption.

Does it want to "eat" every little thing in transit or do you take it to work in a bag?

Glen
 
Easier mounting of line than pulley redirect? Unwind from pigtail, pull pigtail through sling easily, reset same, and twirl line in. Any friction would reduce support load, but limit shock absorbtion by more of the line with it having the majority of shock absorbing line on the other side of the friction buffer.

i was wondering if it could be used for mounting a load to a speed line, varying line lacing on pigtail for more friction. In such a way that tightening speedline(i say gravity bender; but after going for the skyhook the day before; they need convincing on getting the gravity bender! /forum/images/graemlins/confused.gif) would slow load down without an extra line for that task. A tighter line would usually make load speed down faster, here it would slow it down.

/forum/images/graemlins/propeller.gif
 
I don't like it, but can't figure out why yet. Seems like it COULD wiggle it's way off the sling holding it. Maybe if you clipped a large steel 'biner to the sling that would only be loaded if the pigtail failed...then I'd like it better.

I wouldn't want to be close to under that thing while trying it...let Chokey run the ropes on that one!

I like that sling, though.

love
nick
 
Good Thinking, possible applications
adv. to block incl: less rope wear, loads consistently with less friction & more importantly less heat, keeps rope shape (pigtail will allow rope to flatten)

can't see a benefit to the pigtail
 
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can't see a benefit to the pigtail

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The benefit of the pigtail is "looking cool". /forum/images/graemlins/smirk.gif
 
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I don't see any advantage over using a biner or pulley in the same place.

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1) Friction at rigging point lessens load at rigging point.
2) For light loads friction at rigging point means groundman may not need friction device.
3) Some shock load absorbed by spring.
4) Consistant friction.
5) Possibility of taking wraps on coils for more friction?
6) Low cost.

Some of these points were mentioned by others.

Dan Nelson
 
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