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Thread: Jumping jack compactor - GIF

  1. #1
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    Altair's Avatar
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    Jumping jack compactor - GIF

    Jumping jack compactor/tamper.



    1:30 video:



    Previously:

    1964 Tree stomper by R.G. LeTourneau
    Ride-on roller attachment for tractor - photo
    Warsop Benjo power rammer - video, patent, diagram

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  2. The Following 2 Users Say Thank You to Altair For This Useful Post:

    nova_robotics (May 18, 2022), Scotsman Hosie (Feb 2, 2020)

  3. #2
    Supporting Member hemmjo's Avatar
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    That looks like a diesel powered jumping jack. But it must be gas powered since the guy said the sparkplug wire keeps coming off.

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    Supporting Member jdurand's Avatar
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    I remember a gasoline powered pogo stick when I was in engineering class back around 1973. We studied how it worked, no spark plug, just a wire that sparked to the piston at the top of stroke.

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    Supporting Member baja's Avatar
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    A guy I worked for 40 years ago called those a Tfote...the feet of a thousand elephants.

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    Liquidhandwash's Tools
    looks like a movie prop from star wars

  7. #6
    Supporting Member Scotsman Hosie's Avatar
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    Guaranteed to crimp steel toed boots, onto both feet – in a one step operation.



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    Last edited by Scotsman Hosie; Feb 2, 2020 at 04:51 AM.

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