Before checking the last 2 plates of the sluice materials, I decided to see what was the gold loss from the sluice that would be sitting in the tailing tub. The next plate was Cleangold which needs to be processed to see the gold, and the last plate was the new Matting which also needs to be processed to see the results. After several hours of shoveling gravel, it was time to check the results of my experiment.Īs the water flow stopped running down my sluice, I could see a fair amount of gold on the first plate which consisted mostly of a Slick Plate with Raised Rubber Ribbing. Putting a large tub in front of the mouth of my Highbanker to catch the tailing for further inspection of gold loss, I turned on my motor and pump, adjusted the pitch, roll and flow on the Sluice, then started shoveling bank gravel into the Hopper. Everything was the same set up I usually use except I added a full plate of the new Matting I obtained for experimental purposes. After the show was over, I found time to trace where to obtain a piece big enough to check out its performance in real conditions.Ībout a month later, the spring weather was just right to take my experimental, Cleangold Highbanker down to a river for a workout. Fortunately the inventor of this new device was present, so I had a talk with him and obtained a piece of the Matting being used. Not being able to check out any difference at a gold show, I decided to take a quick look at the Matting being used in this new device. He told me that the sample was ran through a new device that used only Matting, and was wondering if Cleangold could get better results. Sometime later while doing a gold show, I was approached by someone with a sample of gold and black sand mix. Placer Gold Recovery Research, Final Summary, Dec. Fundamentally, this is one of the reasons why a Riffle or like objects don’t have much success with capturing various weights and shapes. An example of this effect is when a light particle, particularly, let us say, a flat thin round object confronts a pressure such as from water, it has a tendency to act like let’s say, a surf board, and ride the current at the level conducive to its weight and shape. What I thought was needed is some type of material or perhaps device to cause a change to the angle of attack for flat and barrel shapes running down a sluice.Įxplanation: Water pressure pressing upon an object causes that object to react to that pressure depending on the weight and shape it has. What was that goal? To keep most, if not all of the heavy material passing through my Sluice from 1/4” on down into the invisible range. (See Part 5.) Though I was getting good results simply using Raised Rubber Ribbing with my Cleangold Sluice, it still wasn’t up to the goal I was seeking. “There must be an answer”…that’s what I was thinking looking at the results of my experiments to find the perfect combination to solve my gold loss situation with my Sluice. This is how I felt when I finally found the right combination to solve my problem with gold loss in my Sluice System. Solving complex systems is difficult, but sometimes one gets lucky and finds the solution through throwing a dart at a problem and finding that it stuck to the target.
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