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Gold Prospecting
Do It Yourself (DIY) Projects
Building a large capacity High-banker - Instructional video
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<blockquote data-quote="WalnLiz" data-source="post: 8541" data-attributes="member: 147"><p>Hi Jeff,</p><p></p><p>The modified Clarkson Riffle System which angles the riffles forward to get them more vertical to the water flow, has great merit in many situations. This concept is certainly better when using a "Hungarian" style riffle for trapping high specific gravity items (including Sapphires) with the gold. By creating a more vertical riffle to the water flow the "Eye" of the vortex becomes wider and encourages a rapid fall out of the heavies.(sapphires included). <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /> </p><p></p><p>If i was to use a Hungarian style riffle for general use, i would certainly use a Clarkson style reverse angle. My favorite is still the vertical sided expanded, and given the right slope, gives an almost identical vortex to the Clarkson, only with 10 times the riffles. Like i say...I use mine for combination work and not just for gold...Cheers Wal. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="WalnLiz, post: 8541, member: 147"] Hi Jeff, The modified Clarkson Riffle System which angles the riffles forward to get them more vertical to the water flow, has great merit in many situations. This concept is certainly better when using a "Hungarian" style riffle for trapping high specific gravity items (including Sapphires) with the gold. By creating a more vertical riffle to the water flow the "Eye" of the vortex becomes wider and encourages a rapid fall out of the heavies.(sapphires included). ;) If i was to use a Hungarian style riffle for general use, i would certainly use a Clarkson style reverse angle. My favorite is still the vertical sided expanded, and given the right slope, gives an almost identical vortex to the Clarkson, only with 10 times the riffles. Like i say...I use mine for combination work and not just for gold...Cheers Wal. :) [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
Building a large capacity High-banker - Instructional video
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