![]() Two pieces of wood nailed on the ends of the tray will prove useful for handles. Make the outside measurements of the tray small enough so that it can be removed easily. The tray, which is built of 1" by 6" inch lumber, 17 inches long, with screening or a punched galvanized plate nailed to the bottom or held in place with a 1" by 1/2" inch wooden strap, is set upon two 2" by 2" inch supports nailed to the side of the box at an angle sufficiently great so that when the entire rocker is set at the proper gradient it will tilt slightly forward. It is safer to cover the bottom of the sluice with canvas, galvanized iron, or tin to prevent leakage, and, in the latter case, assist the flow of sand and gravel. Planed so that they fit tightly together, can be used. The bottom of the box, shown in Figure 2, can be made of one piece of board l6 inches, wide and 42 inches long. Each side of the box and sluice can be cut out of one piece of 1" by l2" lumber, 42 inches or more in length. One of these is extended and tapered for a handle. ![]() 21 "Notes on Placer Mining in B.C.") Figure 1 is the side view of a rocker showing the 2" by 4" side braces nailed to the side-boards of the box. Building a Rocker(Department of Mines Bulletin No. The average individual should, without too much difficulty, be able to build a reliable rocker from the diagrams and directions given. The officers of the Department of Mines of the province of British Columbia drew up both the plans and the directions in Bulletin No. Although there are various sizes of rockers and a few slight variations in types, the one on which the plans and directions are given on the next two pages is a standard type. It is conceivable, however, that some of our readers may want a more detailed plan of a rocker and the exact directions on how to go about building one. The first part of this chapter discusses the operation and some of the uses of a rocker as well as a sketch of a rocker and some simple plans. ![]() More free plans can usually be found with a quick search on Google.ĭon't forget more prospecting equipment plans books are available for purchase in our book section too: Pictures and complete plans to build your own rocker box for gold may be found here: (note if links are broken we are sorry- but we do not control these pages). Home > Gold Mining Equipment > Black Sand Magnets (Gold Magnet) > Black Sand Gold Recovery - Part 2 > Black Sand Concentrates > Fine Gold Recovery Equipment > Gold Prospecting - FREE TIPS > Rocker Box Plans Home > Gold Prospecting - FREE TIPS > Rocker Box Plans
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