United States Court of Appeals For the Ninth Circuit . ble was put into the concentrating millsof the appellants at Morenci, Arizona. That was itsfirst appearance—before it v/as patented. Was itnot to be expected that there would be some advancein the art in that It was. It would havebeen strange if it had not been so. Every squareinch of the surface of the Deister table bears the stampof invention. Its combination of high and low riffles;its pools above the high riffles; its scheme for washingup in little subdivided spaces; its water supply comingin a thin film over the washboard,
United States Court of Appeals For the Ninth Circuit . ble was put into the concentrating millsof the appellants at Morenci, Arizona. That was itsfirst appearance—before it v/as patented. Was itnot to be expected that there would be some advancein the art in that It was. It would havebeen strange if it had not been so. Every squareinch of the surface of the Deister table bears the stampof invention. Its combination of high and low riffles;its pools above the high riffles; its scheme for washingup in little subdivided spaces; its water supply comingin a thin film over the washboard, which is all thewater supplied to the table; by all which means takentogether every square inch of its surface does usefulwork. All these did not happen by chance. They arethe product of invention. The operation of the table proves it. On page246 of the record there is a condensed statement ofthe testimony of Gustavus E. Hunt, who was the super-intendent of the concentrating mills of the DetroitCopper Mining Company and who had in use 38 Wilfley 25. 26 tables in that mill with a number of Deister tablesand who had good opportunity to compare the work ofthe two tables. He produced two drawings showingthe comparative areas of their concentrating drawings so put in evidence are now in thehands of the clerk as an exhibit, as appears on page253 of the record. We insert a reproduction of thesedrawings here. They show an area of sq. concentrating surface on the deck of the Deistertable against 78 sq. ft. on the Wilfiey—a good dealless than half. And yet, as Mr. Hunt testifies, theDeister table would handle as much material as theWUfiey. This is important. These tables are alwaysused in great concentrating mills where they are underroof, and dozens, scores, or hundreds of them aregathered in one building. A table that will do thesame work in one-half the space is an enormous gain. Not only the same amount of work as the smallertables, but more effectively.
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Keywords: ., bookauthorunitedst, bookcentury1900, bookdecade1910, bookyear1913
