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    I made up this friction hitch (but I'm sure it's not original). What is it?

    Hello dmonn, Your presentation (initial post) is not Tiable In the Bight (TIB) to the 'host' rope and therefore it is not any version of a Prusik hitch (#1763). The Prusik hitch is TIB and symmetric (written as; "symmetric 3/3 TIB"). Your presentation is "asymmetric 4/1 non-TIB". All slide and...
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    Secure, omnidirectional quick release hitch

    Hello John, Since part of your 'intent' is to make a claim of originality (for your hitch), you should submit it to the IGKT without delay. There are some very knowledgeable and experienced knot tyers who frequent the IGKT forum. In particular, identities such as Xarax (Greece) and Dan Lehman...
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    Tie ins

    ? LOL - some very large contracts (eg Government contracts with high $ value) typically insist on an ISO 9000 accreditation or evidence that the tendering operator adheres to some recognized standard. And this is where I pointed to ISO22846 as one possible example (of a standard). Other than...
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    Lanyard adjuster

    To the original poster: I have found many different uses for the Madrock 'Safeguard' (springless). Link: https://madrock.com/products/safeguard Anything from technical rope access, abseil descent, fixed rope ascent, guy line tensioner for Arizona vortex frame, or employment as a positioning...
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    Tie ins

    The comment from 27RMTON is interesting and relevant when you consider the bigger picture of rope access techniques (tree climbing is a form of 'rope access'). What I am saying is that all roping technicians (regardless of what your work context is) will either be using a single rope system or a...
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    Tests of Zeppelin vs Double Fisherman's bends?

    per John RB: That depends on precisely what you mean by the term 'efficiency'? Unfortunately, most knot book authors and knot testers have developed a mindset where the term efficiency is associated with MBS yield (ie knot strength). This mindset will be very difficult to alter. A compelling...
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    Tests of Zeppelin vs Double Fisherman's bends?

    Hello John RB, If you would like to dive into deep technical detail about the 'Zeppelin bend' - I recommend that you visit this website: Link: http://www.paci.com.au/knots.php (knot bio at #6 in the table). I would comment that MBS yield point of a knot (ie strength) is entirely irrelevant...
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    Rope shelf life

    Hello knudeNoggin, I agree in principle with your comments. I would like to reinforce that virtually all knot testers (with rare exceptions) are fixated on the MBS yield point of a knot. Its like a dog fixating on a juicy bone - they cant seem to conceptualize anything else but raw MBS yield...
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    Is there a name for this loop knot? Is it safe for climbing use?

    It is a corresponding eye knot from #1415 Double Fishermans bend. Note that all end-to-end joining knots (ie 'bends') have 4 corresponding eye knots. Yes - it is 'safe' for climbing. But, it jams - so it is not efficient or of any practical value (in the sense that you would need to use marlin...
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    Rope shelf life

    per knudeNoggin: I'm not appalled even in the slightest. To the contrary - it is within normal bounds to see such testing as produced in this video. In the first instance, to be "appalled" suggests that the tester is an expert - and he has not conducted the test in an expert manner (eg sloppily...
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    Doubled aluminum rings

    The entry and exit interface are the same with one ring or 2 rings. However, the stress/strain at the apex of the bend radius differs. Refer to images.
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    CE-EN1891 Type-B!?

    per Steve Connally: Indeed. Although drifting off topic...you have raised an interesting question. There is a lot of this going on - and its driven by perceived legal risk (and product liability insurance). In the USA, suing someone appears to be a national sport. So USA product manufacturers...
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    CE-EN1891 Type-B!?

    Obviously, social forums such as this are intended for open discussion. However, if we are now discussing the English language and correct grammatical form - I would comment that your opening remark appears to be framed as a statement enclosed within a question! Regardless of syntax, further...
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    CE-EN1891 Type-B!?

    You have to be careful when making remarks such as these. As someone else pointed out, 'not approved' by whom exactly? In another post, you cite from 'Abacus' - which is a supplier of PPE - not a legislative entity. In other words, Abacus is simply a shop that sells stuff. Abacus has precisely...
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    Knots for joining two ropes for life support

    The original post and intent of this thread topic was: From an efficiency and security viewpoint - the Zeppelin bend is the clear choice. Knot efficiency has nothing to do with 'strength' - the key metrics being amount of rope required to tie/create the knot, jam resistance, footprint...
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    Decoding Patterns of Forces

    The reason why the Zeppelin bend is jam resistant is complex but can be understood in terms of a 'toggle axis'. See my paper on the Zeppelin bend here: Link: http://www.paci.com.au/knots.php (at #4 in the table) Fundamentally, the Zeppelin bend is constructed from 2 superposed loops of opposite...
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    Aerial Rescue info

    Although off-topic and not directly discussing vertical rescue techniques, here is some info for you. "Suspension trauma / harness hang syndrome" is one of those topics that suffers from endless parroting and poor fact checking. Content writers latch on to the topic and parrot information...
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    Rope bridge, finally. Now what knot?

    Although these questions are drifting off-topic... People keep telling me; "He who dies with the most gadgets (toys) wins!" Almost every year, someone tries to bring to market the next big 'GriGri killer'... Camp tried this with their 'Matik' - which failed to knock any iteration of GriGri off...
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    Rope bridge, finally. Now what knot?

    Happy for the insults to keep rolling in. Also happy to be the assumed villain. I don't think you even know why you are posting anymore - I mean, what is the point of your insults? Clearly, you don't like being corrected? I guess that is the root cause of your continued insults? I wonder if...
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    Rope bridge, finally. Now what knot?

    Yes - it is priceless :) This treebuzz forum is the wild west - you can say anything, selectively read posts while ignoring others, and get away with anything! I am happy to be made out to be the villain :) Please continue...

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