. Canadian forest industries 1916. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. fis CANADA LUMBERMAN put together at the mill where the timber was sawn. Each section which forms the frame work for the V has a sill of sufficient length to reach across the stringers and project far enough on one side to support a plank walk. The V to which 2-in. plank are nailed is sup- ported by two beams, one on either side. Where trestle is necessary it is built of unsawn timber. The largest trestle is about 75 feet high and 500 yards long. In several places the
. Canadian forest industries 1916. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. fis CANADA LUMBERMAN put together at the mill where the timber was sawn. Each section which forms the frame work for the V has a sill of sufficient length to reach across the stringers and project far enough on one side to support a plank walk. The V to which 2-in. plank are nailed is sup- ported by two beams, one on either side. Where trestle is necessary it is built of unsawn timber. The largest trestle is about 75 feet high and 500 yards long. In several places the flume runs through cuts in small ridges, thus cutting oft' the small turns of the creek bed. The trough of the flume is of two-inch plank, rising at an angle of 45 degrees to a height of four feet. Care is taken that there are no rough joints in the planking which would hold up a log and cause a jam. The cracks between the planks are battened with 3 in. x 1 in. strips. The plank walk extends along the side for the use of the men on guard to prevent jams during the Burning. The grade of the flume varies from 2 to 25 per cent. On the 25 per cent, grade, the water runs at such speed that the depth is greatly decreased. To over- come this, a feed enters just above. It is built with flat bottom and vertical sides, of dressed inch lumber, held in place by 2 in. x 4 in. scantling. At the upper end of the main flume the flow of water is controlled by a dam constructed of rough timber, stone, earth, and AN t) WOODWORKER September 1. 1916 plank. Two sluice ways control the supply of water in the flume. Each guard has about a mile of flume to watch, and has near at hand a telephone connected with the skidways and main camp. The logs after leaving the flume are left to float down the Adams River to Shuswap Lake of their own accord. Here they are caught in a boom, held around the mouth of the river by piling. The boom is fastened together by ring-dogs and chains. From here they are towed i
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
