Bi-directional Ratchet Prototype on YouTube

Mon, 6 Jun 2011

A mechanism for mechanism's sake. I have put together the final stage prototype of the bi-directional ratchet model – and uploaded a youtube video of the model in action. My apologies for the sound quality, I forgot to connect up the external microphone. Still, once I've completed the download file you will be able to make you own and listen to the glorious tick-tocking in real life!

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Comments (3)

  • JayHavvic June 6, 2011 at 4:15 pm

    That is wonderful. Can’t


    That is wonderful. Can't imagine how you come up with these.

    The action of the "Beam" a ratchets reminds me of a Mississippi Side wheel riverboat, they had a "Walking Beam" Steam engine. Much different action but the illusion is there.



    • robives June 6, 2011 at 8:23 pm

      Thanks Jay, there is a nice

      Thanks Jay, there is a nice bit about the walking beam steam engines on wikipedia, the source of all knowledge.

  • Brian Ives June 7, 2011 at 10:30 am

    This is mechanism used on the

    This is mechanism used on the Butler Omnicycle in the 1800s; this link shows you


    We have one in the museum at Pateley Bridge.

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