. Canadian forest industries 1880-1881. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. PUBLISHED I SEMI-MONTHLY. J The only Newspaper devoted to the Lumber and Timber Industries published in Canada. ( BUB8CBIFTIOB i PER AXKVU. VOL. 1. PETERBOROUGH, OJNT., DECEMBER 1, 1881. NO. 27. FAST SAWING. Last winter Messrs. Irwin & Boyd determined to take out their old circular in the Nassau Mills, near Peterborough, and replace it with an A No. 1, which for good fast cutting and con- venience should be ahead of anything in this lumbering district o
. Canadian forest industries 1880-1881. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. PUBLISHED I SEMI-MONTHLY. J The only Newspaper devoted to the Lumber and Timber Industries published in Canada. ( BUB8CBIFTIOB i PER AXKVU. VOL. 1. PETERBOROUGH, OJNT., DECEMBER 1, 1881. NO. 27. FAST SAWING. Last winter Messrs. Irwin & Boyd determined to take out their old circular in the Nassau Mills, near Peterborough, and replace it with an A No. 1, which for good fast cutting and con- venience should be ahead of anything in this lumbering district of Ontario. The contract was awarded to Mr. Win. Hamilton, of this town, and in due time the job was placed in position, and is a decided success. But as this success was not obtained without encountering gome of the difficulties incidental to high speed, and not without furnishing bits of experience worth recording, we shall note a few points that may Be of interest to our patrons. GENERAL DESCRIPTION. The mill is of a style that is heavy and strong throughout; it is also well fitted, but is not showy. The iron husk, or frame, is 9 x 5£ feet; saw mandrel, 4| in. diameter ; mandrel pulley, 33 in. diameter by 22 in. face ; carriage shaft, 3£ in. diameter ; other shafts, 3 in. ; feed and gig friction pulleys, 12 in. face ; belt for feed cones, 6 in. ; gig belt, 10 in. The main driving belt is 18 in., of heavy leather, double and made up endless at the factory in Montreal, ready to be put on, and runs with perfect smoothness, though at the unprecedented rate of 8,000 feet per minute. The feed and gig movement of the carriage was effected primarily by a \\ in. manilla rope, but as this had been broken several times, it was taken off and a chain used ; this has also been frequently broken, but is quickly repaired. The carriage has three head blocks, one being on a detachable portion which is used only for long logs. The dogs of the other two are connected, and are operated by one c
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectforestsandforestry
