Canadian forest industries July-December 1914 . lumber, a height of from 40 to 60 inches is recommended. The bestangle for the V is put at 90 degrees. Flume lines should be surveyed with enough care to ensureevenness of grade. Grades should be kept below 15 per cent whereverpossible, and the best results are obtained with grades between 2 and10 per cent. A careful preliminary survey, followed by a locationsurvey, using a transit and level, will make it possible to obtain a re-liable profile map which will serve to show the prospective operatorwhat the grading should be at different points alon
Canadian forest industries July-December 1914 . lumber, a height of from 40 to 60 inches is recommended. The bestangle for the V is put at 90 degrees. Flume lines should be surveyed with enough care to ensureevenness of grade. Grades should be kept below 15 per cent whereverpossible, and the best results are obtained with grades between 2 and10 per cent. A careful preliminary survey, followed by a locationsurvey, using a transit and level, will make it possible to obtain a re-liable profile map which will serve to show the prospective operatorwhat the grading should be at different points along his line. Abrupt curvatures in a flume showld be avoided, for they arelikely to cause jams. Curves should rarely be permitted to exceed20 degrees. The longer the material to be handled in the flume, theless abrupt should the curvatures be. It may be necessary to blast. f-* Lory View of Flume showing dimensions of different parts.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
