Don Mills, Ont. : Southam-MacLean Publications · leaf 346
beheated first and burned before the remainder of theknife reaches the proper temperature. When heatinga knife it is advisable to place it on the coals face up,letting the thin cutting edges and the narrow pointsproject a little past the hot blast. Start a slow, evendraft and keep the fiercest heat… … \Secoz7cfs Diagram showing how heat rises and falls when heating steel. quickly withdraw and plunge the knife point downward into the bucket of oil or water. By uniform and careful heating each part is ex-panded without strain and at relatively the same rateand without oxidizing and decarbonizing…
Furniture industry and trade · Woodworking industries
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
