. Canadian forest industries 1911. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Defiance No. 6 Bolting Saw. ling table. When used in the latter manner, the bolts are taken out of the cross tie at the rear end,, and the back table is held fast by a bolt to form a stationary table to receive the sawed lumber as it falls from the saw. The use of the tables as a double travelling table is for halving or quartering logs and spliting square timber. The spur dogs are arranged to hold the material by each end. The one nearest the saw is adjustable on the
. Canadian forest industries 1911. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Defiance No. 6 Bolting Saw. ling table. When used in the latter manner, the bolts are taken out of the cross tie at the rear end,, and the back table is held fast by a bolt to form a stationary table to receive the sawed lumber as it falls from the saw. The use of the tables as a double travelling table is for halving or quartering logs and spliting square timber. The spur dogs are arranged to hold the material by each end. The one nearest the saw is adjustable on the table for different lengths of work, with rack and pinion movement operated by a ball lever for throwing the dogs into the work. By this arrangement the material can be sawed to any angle desired. Quartered Oak for Veneer Until recently it was considered inadvisable, if not impossible,, to properly slice quartered oak to be used for veneering. Lately, however, rapid strides have been made in this direction and a great deal of quartered oak is now being sliced and used successfully. It requires different handling from the sawed veneer, but where it is properly worked and intelligently used, it is for many purposes extremely satisfactory. Your grading rules for quartered oak veneer admit of bright sap without limit. I do not see the logic of this, for it certainly is a defect and a serious one. In lumber one inch of bright sap is ad- mitted, but each additional inch is considered a defect in the grade of firsts and seconds which corresponds to your standard grade. • Taking up the cheaper woods, such as basswood, maple, plain oak, beech, birch, elm, etc., I believe there is an oppotrunity for much greater efficiency in grading it to meet various requirements. I do not know how far careful grading has been carried, but I am convinced that it is desirable. From a small experience in this line, I would say that standard inspection of single ply veneer could be made with profit to
Size: 1946px × 1284px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
