|Glossary Intro and Glossary Annexes|
See High Speed Steel
A rounded convex member of a molding; half of a circle.
Source: Home Craftsman 4 January-February 1935 page 124
(see p. 228 of Paul Nooncree Hasluck, 1891.)
Often abbreviated as HSS. Material used to make Jointer Knives, Shaper Cutters, Saw Blades and Router Bits. Not as Hard nor as brittle as Carbide.
The unit of power measurement. 1 hp equals 33,000 ft-lb of work per minute. The woodworker is usually more interested in the electrical equivalent of 746 W - 1 hp. As a general guide for circular saws it is generally reckoned that a motor needs '4 hp for each lin (25 mm) depth of cut, though many saws have lower hp. When only thin wood or softwood is being sawn the motor can be of smaller hp.
Source: Vic Taylor, Wood-worker's Dictionary , Hemel, Hempstead, England: Argus Books,1987; Pownal, VT: Storey Communications, 1990, page 119.