SparTalk
EDUCATION CATALOG RIGGING CONSULTATION HOME CONTACT US

Go Back   SparTalk > SparTalk
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #1  
Old 05-19-2015, 03:34 PM
almanor almanor is offline
Junior Member
 
Join Date: Jun 2005
Location: NE california, near Lake Almanaor
Posts: 4
Default short splice in HM

I need to make a couple of short straps in 3/8 HM line with an eye and thimble in each end 14" and 16". Is this possible? Even with a drastic taper it seems that is not much bury.
Reply With Quote
  #2  
Old 05-19-2015, 05:23 PM
Ian McColgin Ian McColgin is offline
Senior Member
 
Join Date: Jun 2005
Location: Hyannis, MA
Posts: 368
Default

Make a loop with the ends to each other and then sieze near each thimble's throat. If you've sized the line for the capacity you need, you can now go a bit smaller if you like.
Reply With Quote
  #3  
Old 05-23-2015, 07:58 AM
Brion Toss Brion Toss is offline
Moderator
 
Join Date: Jun 2005
Posts: 1,180
Default Option

Hi,
I'll just add that you can work a locked Brummel into the loop, as seen in my Book 5.
Fair leads,
Brion Toss
Reply With Quote
  #4  
Old 05-24-2015, 06:11 AM
almanor almanor is offline
Junior Member
 
Join Date: Jun 2005
Location: NE california, near Lake Almanaor
Posts: 4
Default

Actually after talking to my friend the 3/8 line he had was left over from his winch and way oversized. the line would be seeing static loads of maybe 200# and shock loads 3 times that. I went for the brummel with a short bury, it is also a non mission critical piece so even if it breaks no big deal. Thanks for the addvice.
Reply With Quote
  #5  
Old 06-28-2015, 11:14 PM
k7cej k7cej is offline
Junior Member
 
Join Date: Apr 2007
Posts: 16
Default Locked Brummel in a bight?

Brion:
In post #3 you suggest making a locked brummel in the loop. I don't think this is topologically possible if the loop is completed first. If you work with the un-looped line, obviously you can make your brummel eye in each end, and the bitter ends could be end-for-end spliced, but I can't see being able to make the end-for-end of exactly the right length (same as the standing part), so the load would all end up on whichever was the shorter section.

I like the idea of just making a loop, then forming the eyes and stitching the throats. This could be done with some tension from eye to eye, to assure equal lengths to each leg.
__________________
Craig Johnston
s/v Sequoia
Reply With Quote
  #6  
Old 06-29-2015, 07:31 AM
Brion Toss Brion Toss is offline
Moderator
 
Join Date: Jun 2005
Posts: 1,180
Default Brummel

Hi,
You are right, it is topologically impossible to get a locked Brummel for a closed loop. So... I cheat. If you have a copy of Book 5, the method is in there. If you don't, and don't want to buy one, I'll email a picture of the page.
Fair leads,
Brion Toss
Reply With Quote
  #7  
Old 07-01-2015, 11:22 PM
k7cej k7cej is offline
Junior Member
 
Join Date: Apr 2007
Posts: 16
Default Brummel in eye or in loop?

Brion:
Perhaps, like all modern problems, we have a failure to communicate. I am well aware of the Book 5 "cheater" locked Brummel in the loop, where one end is unraveled and re-braided around the standing part.* I assume this is how the loop would be made.
In the post in question I had envisioned a loop, made with a locked brummel, with locked brummel eyes in opposite ends. The only way I could see to do that was to make the two eyes in the line (unlooped), then join the bitter ends to make the loop. The problem, as I see it, would be to make that last "cheater" splice such that the tension in the spliced and un-spliced sections would be equal- very hard to do IMHO.
Going back to Almanor's op, I wonder is a simple loop would not do the job for him? Does he really need eyes in each end? If he really needs eyes in each end, how about making the thing out of 5/8" spectra webbing and sewing the eyes? Depending on the load and application, this might be a very simple solution. We really need to know his strength requirements and more about the application to craft an optimal rigging solution.
Regards,
Craig
* I own two copies of book 5!
__________________
Craig Johnston
s/v Sequoia

Last edited by k7cej : 07-01-2015 at 11:30 PM.
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -7. The time now is 03:18 PM.


Powered by vBulletin® Version 3.6.7
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.