. Canadian forest industries January-June 1921. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. View of No. 3 mill of McLachlin Bros., Arnprior, looking down the lumber conveyor from the sorting table. The seven cabins house the electric motors that drive the conveyor. Each motor drives 29 rolls. Lumber moving at the rate of zy^ feet a second, takes nearly five minuXies to reach the sorting table. tend the track system and take standard gauge cars to the mills on the loyver level, it was decided to build two electrically driven conveyors. Xo data co
. Canadian forest industries January-June 1921. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. View of No. 3 mill of McLachlin Bros., Arnprior, looking down the lumber conveyor from the sorting table. The seven cabins house the electric motors that drive the conveyor. Each motor drives 29 rolls. Lumber moving at the rate of zy^ feet a second, takes nearly five minuXies to reach the sorting table. tend the track system and take standard gauge cars to the mills on the loyver level, it was decided to build two electrically driven conveyors. Xo data could be found covering the carrying of manufactured lumber this dis- tance. A combination roller- chain-electric motor unit was de- veloped which has proved jjecu- liarly satisfactory in service. Xo failure or interruption of any kind was experienced with this transniisison scheme during the summer of 1920; the cost of maintenance being practically nil. It is felt that there would be no difficulty in extending this system of lumber conveyors for any reasonable distance, as this Avould only entail a multiplica- tion of the present developed unit. The delivery of lumber from the trimmers to the electric transfer was entirely automatic, as was also the deliver}- of lum- ber to the sorting tables, mill is 391 feet long, divided into This table has proved The sorting table for the No. 3 four drives, each drive being an electric motor. peculiarly successful, being cool, quiet, well lighted and entirely satis factory in every way. Double track railroad was laid on each side of the sorting tables, and the sorted lumber loaded on to the steel yard lorries in bundles by gravity rollers. The sorting table for the No. 4 mill is 300 feet long, in three units, electrically driven. Only seven men are required on the No. 4 table for 100,000 feet per nine hours' run. About twenty men are required for the No. 3 table for an output of 250,000 feet per nine hours' run, the extra men on the No. 3 ta
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectforestsandforestry
