. Canadian forest industries 1880-1881. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 16 THE CANADA LUMBERMAN. EMERY WHEELS FOR SAW GUMMING!. Solid Emory Wheels are now almost in universal use for the purpose of gullettlng and gumming saws. Statistics show from 25,000 to 80,000 saw-in ills In tile United Stales. Many of these run only a single saw each. A one-saw mill would use one or two wheels a year, costing S3 to $1 each, and when such small mills order single Emery Wheels from the factory, the express charges often equal the cost of the wheel
. Canadian forest industries 1880-1881. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. 16 THE CANADA LUMBERMAN. EMERY WHEELS FOR SAW GUMMING!. Solid Emory Wheels are now almost in universal use for the purpose of gullettlng and gumming saws. Statistics show from 25,000 to 80,000 saw-in ills In tile United Stales. Many of these run only a single saw each. A one-saw mill would use one or two wheels a year, costing S3 to $1 each, and when such small mills order single Emery Wheels from the factory, the express charges often equal the cost of the wheel. There was a time when the quality of Emery Wheels was so uncertain, and the demand so fickle, that storekeepers could not airord to carry them in stock. Now, however, Saw Gumming Wheels have become as staple an articleas Kiles, and overy dealer in saws, Hardware and Mill Supplies can afford to carry a few dozen standard sizes in stock, Large dealers order stocks of $"j00 to $750 worth at a time. Haw Gumming Wheels are used with the edge (or face) square, rouod or beveled. Probably soven-elgtbs of all in use are beveled. Tne principal sizes are: 8x+ Hxj} 8xJ hole. J in. hole. 12xJ 12x1 12x1 12xf 12x5 12x5 Holes, f J, l and 1 inch. Probably moro wheels 12xji, 12xJ and 12xJ are used than all the other sizes together. Haw Gumming Wheels are used, however, of all sizes up to 2IxlJ. The most frequent complaint is that Emery Wheels harden the saw so that a file won't touch It. The answer is that you don't want a file to touch it. An expert workmau will shape and sharpen the teeth with an Emery Wheel, leaving the teeth case hardened, in which condition the saw will cut about 33j per cent, more lumber than a soft saw will. Those who want to use the file, however, have only to touch the saw Wjldly a second time (after going all over It once), and this second touch will cut through the case-hardened scale. j^. QXJ ESTION OF QUALITir. Thirteen years of experience as makers of, deale
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectforestsandforestry
