. Canadian forest industries 1894-1896. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. June, 1895 THE CJ^M^DJL LUMBERMAN AN ENGLISH Relates to a machine for sawing, mortising and trenching, and for marking for setting out work. The figure shows an elevation of one form of the ap- paratus. Adjustable circular saws or cutters S S are fixed on parallel shafts M D worked by driving belts from a thiid shaft B. The shaft M is carried by biackets on pivoted arms K, which may be adjusted to regulate the distance between the shafts M D between whic
. Canadian forest industries 1894-1896. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. June, 1895 THE CJ^M^DJL LUMBERMAN AN ENGLISH Relates to a machine for sawing, mortising and trenching, and for marking for setting out work. The figure shows an elevation of one form of the ap- paratus. Adjustable circular saws or cutters S S are fixed on parallel shafts M D worked by driving belts from a thiid shaft B. The shaft M is carried by biackets on pivoted arms K, which may be adjusted to regulate the distance between the shafts M D between which the wood, &c, is introduced. Many modifications are described, in one of which the shaft D is mounted similarly to the shaft M. Guides and gauges may be arranged for the wood, etc. TENONING MACHINES THEN AND NOW. IT is by taking a glance into the past that we can best learn, oftentimes, how high is our altitude to-day. Let wood-workers look at the two illustrations here given, and they will have some idea, af least, of the progress made in the manufacture of wood-working machinery within less than half a century. The cut here given of a new tenoning machine, as in operation in many wood-working establishments to-day, stands out in striking contrast to its representative of forty years past. This tool is used principally for sashes and blinds. The cutter-heads are made small, so that they can be run at great speed and do better work and more of it. The top headstock is adjustable up and down and in and out, and both headstocks can be moved up and down together without changing the thickness of the tenon in the least. The bottom headstock and the main standard are in one piece, gibbed to the inside of the frame, and raised and lowered by a screw. Both top and bottom cutterheads are run by one belt at the It is perfectly rigid and cannot be thrown or worn out of line. It is provided with a positive hold-down, con- veniently and quickly operated, and by which the short- est p
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectforestsandforestry
