Am taking a break from panning today...and reading about gold pans instead.
Pdf article on patented gold pans:
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http://www.mine.mn/WPJ6_1_gold_pan.pdf
The article is by no means comprehensive, but is a fun read. Kelava's spiral gold pan bears a strong resemblance to the Turbopan!
Searching around for the origins of the batea (on which my Batpan is based on), I came accross a company selling actual bateas:
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http://placergolddesign.com/batea-goldpans
The company espouses the supreme efficiency of the batea, and looking at how well the Batpan works, I believe them.
Here's an interesting pan that uses running water:
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http://www.hydropan.com/hydropan.html
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http://www.thunting.com/smf/index.php/topic,46932.msg257599.html#msg257599
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"Gold rides an iron horse." (Old prospector Homefire)
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