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
JayHavvic
Rob,
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.
J
robives
Thanks Jay, there is a nice bit about the walking beam steam engines on wikipedia, the source of all knowledge.
Brian Ives
This is mechanism used on the Butler Omnicycle in the 1800s; this link shows you
http://www.gracesguide.co.uk/wiki/BSA:_Bicycles
We have one in the museum at Pateley Bridge.