Can you build an engine without round wheels? - "Onward"

In today's video, we take a look at Swinerton's not-quite-so well rounded idea for a locomotive wheel

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This video falls under the fair use act of 1976.
This video is available to use under the appropriate Creative Commons Licence.
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Picture & Information References:
http://www.douglas-self.com/MUSEUM/LOCOLOCO/polygon/polygon.htm
https://books.google.co.uk/books?id=ChQ4AQAAMAAJ&dq=swinerton+locomotive+driving+wheel+company&pg=PA145&redir_esc=y#v=onepage&q=swinerton%20locomotive%20driving%20wheel%20company&f=false
https://en.wikipedia.org/wiki/Onward_(locomotive)