Popular science monthly . dust, if sawdust is a sure sign ofa slow-cutting saw and a poorfiler. Otten the saw is blamedwhen the filer and sometimesthe operator is at fault. A filershould be able to put a finecutting point on any saw thathas good material in it. A saw that is so glossy andhard that it will not swageshould have the temper drawnwith a pair of thick, red-hottongs. If possible all raker-teeth should be softer than thecutting-teeth. They will givebetter satisfaction and will beeasier on the file; for a file willcut nicely on the bevel-strokeused on a cutting-tooth long
Popular science monthly . dust, if sawdust is a sure sign ofa slow-cutting saw and a poorfiler. Otten the saw is blamedwhen the filer and sometimesthe operator is at fault. A filershould be able to put a finecutting point on any saw thathas good material in it. A saw that is so glossy andhard that it will not swageshould have the temper drawnwith a pair of thick, red-hottongs. If possible all raker-teeth should be softer than thecutting-teeth. They will givebetter satisfaction and will beeasier on the file; for a file willcut nicely on the bevel-strokeused on a cutting-tooth longafter it has ceased to be of useon the hard horizontal strokerequired in sharpening a raker,which must ha\c a perfectlysquare chisel cutting-bit so asto plough out the sawdust. 924 Popular Scieticc Moullili/ A Toy Bank of Wood Fastened TogetherWithout Nails how a toy bankand fastened together THF-: ilhislrationswhich is fitted c Making a Wood-Burningfor the Home >hows Heater r^HK drawing belowX house heating where wood. The wood pieces forming the parts of the chairslip together without nails like a puzzle by checking and notching the several back of the chair is cut from a pieceof wood 5 in. long by 2^4, il- wide and i $ The sides are 7J^ in. long, ^ut froma 3/^-n- board, 14 in- thick. iiach ofthese pieces is grooved for the back andcross-grooved for the top and bottom partof the box. The outline of these pieces \ishown in the illustration. The widthof the part that receives the front andback is 234 • wide. The front and thebottom parts are shown at the right andleft in the illustration, and are 3 in. longby 2}/2 in. wide. Each is cut from 3-i?in-board, which is left full thickness at theends; but in the center across the trholebreadth it is reduced to }§ in. thick for alength of 2^4 in- The seat of the chair iscut and checked the same way and to thesame size and has the addition of thecoin slot. The bottom which is shown inthe center, is 3-^1 in. lon
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectscience, bookyear1872
