. Canadian forest industries 1903. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. July, 1903 THE CANADA LUMBERMAN '5 grade. The wood was simply rubbed down into a pulp against the periphery of a wheel prepared with a rough face. At the Paris exposition, 1867, was to be seen in action a large machine of 50 horse power for making wood pulp for paper. Only whitewoods were thought to be available for the purpose. LARGE LOGGING ENGINE. The accompanyingillustration represents what is said to be the largest logging engine yet turned out in British Columbi
. Canadian forest industries 1903. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. July, 1903 THE CANADA LUMBERMAN '5 grade. The wood was simply rubbed down into a pulp against the periphery of a wheel prepared with a rough face. At the Paris exposition, 1867, was to be seen in action a large machine of 50 horse power for making wood pulp for paper. Only whitewoods were thought to be available for the purpose. LARGE LOGGING ENGINE. The accompanyingillustration represents what is said to be the largest logging engine yet turned out in British Columbia. It was manu- factured by the Vancouver Engineering Wofks for the British Columbia Mills, Timber & Trad- ing Company. The engine has cylinders of 10 inches in diameter and 15 inch stroke. It is very strong throughout, the frame being built up of 15'inch steel I beans. The main drum has a capacity of miles of cable and the haul-back drum a capacity of 3 miles of S/% cable. The boiler is 60 inches in diameter by 1-52 inches high and carries'a working pressure of 150 pounds of steam. The front drum of the engine is fitted with the NcNair patent device for setting the fric- tion. The weight of the engine is about 17 tons. for the board is held firmly in relation to the bottom cutter by the platen and feed rolls, and there can be no variation of the cut there dur- ing the running of a board, no matter what it may vary in thickness. I repeat, then, my suggestion that some improvement could be made in the ordinay smoothing planer practice by having two cutterheads for top surfacing and distributing the work of four knives to two heads and four belts, instead of one head and two belts. This year there is particular need for the very best of facilities for matching up of box boards. I do not mean the tongue-and-grooving, but the fitting together at the saw table of such widths as are required to make up a box side, for the scarcity and high price of lumber has led to the use of sm
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectforestsandforestry
