. Canadian forest industries July-December 1922. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Tractor on ice at landing—ice only ten inches thick nates that this particular tractor was being operated to the summit only. (Chart letter E.) Therefore, it will be noted that tractor No. 4 hauled to the summit only from February 6th to March 6th—that tractor No. 6 to summit only, from February 26th to March 7th— tractor No. 7 to summit only, until February 4th, when it was sent to the Tugg hill operation—and tractors No. 9 and No. 12, to the summit onl
. Canadian forest industries July-December 1922. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Tractor on ice at landing—ice only ten inches thick nates that this particular tractor was being operated to the summit only. (Chart letter E.) Therefore, it will be noted that tractor No. 4 hauled to the summit only from February 6th to March 6th—that tractor No. 6 to summit only, from February 26th to March 7th— tractor No. 7 to summit only, until February 4th, when it was sent to the Tugg hill operation—and tractors No. 9 and No. 12, to the summit only, throughout the season. During the season 20,536 cords were moved by these tractors from the rollways to the landing dump. The largest day's haul was on March 4th, when 540 cords were moved from rollways to landing dump. Haul Was Most Difficult It will be noted that the haul described is a very difficult one. Its average length is 13 miles, and is over the height of land. Study- ing the rough sketch, in connection with the index chart, the folow- ing details of distances, grades etc., will be noted:— From rollways located at index letters B and C, to junction (noted on index as 1) the roads are approximately level—from roll- ways located at index letter A, to junction (1,) there is a drop of approximately 1,000 feet, and from A to 4 occurs a steep and winding down grade sandhill of 350 yards in length and of approximately 30%. From junction (1) to index letter E (heighth of land) a steady upgrade occurs, of 8% and 2>y2 miles in length. From E, to index figure-(3) the haul is generally level (with one or two short upgrade pitches,), and from (3) to F the \]/2 mile drop to the River dump occurs. To the woods operator, the magnitude of the performance of these Linn logging tractors is readily appreciated. Considering the average operation—where—as in a great majority of cases, the haul is all level, or down grade—the enormous quantity of wood that can be mov
Size: 1496px × 1669px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectforests, bookyear1922
