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Thread: Molly Hogan wire rope splice 3 photos

  1. #1
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    Smile Molly Hogan wire rope splice 3 photos

    <a href="http://tinypic.com" target="_blank"><img src="http://i6.tinypic.com/520sy7n.jpg" border="0" alt="Image and video hosting by TinyPic"></a>


    Put this around a welded thimble.
    1 X 7 wire rope. 3 strands one side 4 strands the other side.
    I leave extra long tails and put some nicro press swages on.
    Last edited by donald branscom; 05-10-2007 at 01:52 PM.
    I love the smell of fresh cut plywood in the morning.

  2. #2
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    Molly Hogans or Flemish eyes are very useful and can be quite strong. I have used them for forming the eyes for gaff and boom jaw parrals.

  3. #3
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    I have had them fail.
    They are common useage in the logging industry because they are quick to make up, but they can and will fail if loaded enough.
    It is scary to watch those wires slipping through the bight faster and faster...

  4. #4
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    Quote Originally Posted by Canoeyawl View Post
    I have had them fail.
    They are common useage in the logging industry because they are quick to make up, but they can and will fail if loaded enough.
    It is scary to watch those wires slipping through the bight faster and faster...
    I was in the US Air Force and saw a chain sling fail dropping a $300,000 jet engine on the concrete. The chain was tested every 30 days and was the highest grade and oversized.

    Like I said i leave extra long tails on my Molly Hogan splices and put 3 nicropress swages on them.
    I love the smell of fresh cut plywood in the morning.

  5. #5
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    We use them to make "field expedient" chokers to rig towers. Extra long tails and saddle clamps. Always used in a situation that is always well below their rated capacity, and never to lift personnel.
    Bill R

    There was supposed to be an earth shattering KABOOM!

  6. #6
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    I have had them fail.
    Can you elaborate on the mode of failure and the way the failed eyes had been finished off. This type of 'splice' is a powerful tool in anyones wire work tool box and by all accounts has much goodness and utility about it. As such it deserves more than a scare story, however true or well intentioned the comment is, the details are important to proper use by future users.

  7. #7
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    The splice that failed was a standard Molly Hogan with the wraps around the lead wire seized with friction tape. Made from 3/8” wire, probably an old gut wrapper, there were no cable clamps or pressed swages. I had just removed a large Caterpillar engine and it was hanging from the forks on the loader when out of the corner of my eye I thought I saw the splice slipping. Once it started it accelerated rapidly but I did have time to slam the loader down and the engine only fell a few feet - it all took about two seconds.
    And it put me off from Molly Hogan’s to this day.

    In California Molly's are illegal to transport your log dolly…The CHP will pull you “out of service” if you use it.
    (I find it interesting that the Highway Patrol inspection officer is trained to recognize and fail a Molly splice, they are also trained to know which way cable clamps are supposed to be arraigned…)

    After having the failure twenty years ago I stopped using them so I can’t really comment much about the splice other than that.
    They are quick and dirty and very useful, but I wouldn’t use one if I were worried about dropping the load
    If you load test a Molly Hogan I’m betting that the failure will be it’s unraveling, not the breaking of the wire as in a conventional splice.

  8. #8
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    Thanks much, ...... I will try to get this topic posted on Brion Toss's forum and see what information pops out.

  9. #9
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    Like I said above, they can be useful -but NEVER for standing rigging.
    If needed offshore in an emergency a Molly Hogan over-sized eye splice with a proper round seizing clapped on would do in a pinch, if no cable clips were handy.

    Wire splicing is really not that hard and once you do a couple dozen your speed does improve. The eye splice I demonstrated using 3/8" diameter 7x7 stainless steel, in the Liverpool wire splicing post,
    http://www.woodenboatvb.com/vbulleti...ad.php?t=65036
    normally takes me a little over 45 minutes to turn in, once it is in the vice.

  10. #10
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    Quote Originally Posted by Clyderigged View Post
    Like I said above, they can be useful -but NEVER for standing rigging.
    If needed offshore in an emergency a Molly Hogan over-sized eye splice with a proper round seizing clapped on would do in a pinch, if no cable clips were handy.

    Wire splicing is really not that hard and once you do a couple dozen your speed does improve. The eye splice I demonstrated using 3/8" diameter 7x7 stainless steel, in the Liverpool wire splicing post,
    http://www.woodenboatvb.com/vbulleti...ad.php?t=65036
    normally takes me a little over 45 minutes to turn in, once it is in the vice.
    I stated earlier that i used Molly Hogan splices with 3 steel swages NOT electrical tape at the base of the eye and the tails extended up the wire at least 4 times the diameter of the eye.
    So maybe it could be called a modified Molly Hogan.
    This eye splice is also called a Flemish eye splice and has one of the highest load ratings. Go to http://www.americanriggers.com/ropeslings.html if you still don't like my awnswer.
    The liverpool splice looks good too.
    But i did not intend to get into a pissing match about it. and no matter how FAST you can do them means nothing to me.
    When you say they should NEVER be used for standing rigging I don't know how you could say that. Different splices and knots are just rated for strength or ease of untying or whatever, but i have not seen any information saying such and such a knot should not be used for a certain purpose. Slings are rated for TYPE of use and materials etc.,.
    I won't say any more.
    Last edited by donald branscom; 05-14-2007 at 05:28 PM.
    I love the smell of fresh cut plywood in the morning.

  11. #11
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    your mention of using nicro press swages caught my eye....although I notice that you said that you used three.....In standard 1 X 19 wire rope, the twist of the wire is so slow that to hold rated wire strength two nicropress swages are required....a third one is fine, but.......there must be at least 1/4 inch between swages and the wire must protrude at least 1/2 inch beyond the edge of the last swage..
    Wakan Tanka Kici Un
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  12. #12
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    Quote Originally Posted by paladin View Post
    your mention of using nicro press swages caught my eye....although I notice that you said that you used three.....In standard 1 X 19 wire rope, the twist of the wire is so slow that to hold rated wire strength two nicropress swages are required....a third one is fine, but.......there must be at least 1/4 inch between swages and the wire must protrude at least 1/2 inch beyond the edge of the last swage..

    It was 1 x 7 wire rope 5/16 dia.,.
    I love the smell of fresh cut plywood in the morning.

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