have semi-circular scallops ground into the edge that alternate on either side of the knife and extend from the edge to the middle of the blade. This edge was designed and patented in 1928 by Granton Ragg Ltd.
A similar design, kullenschliff
), has oval scallops (kullar
) hollowed-out of one or both sides of the blade above the edge. These are normally found on meat carving knives but have recently appeared on other types of knives, especially Western variations of the Japanese santoku
. The design of scallop-sided blades is an attempt to ease the cutting and separation of meats, cheese, and vegetables.
Lifted from Wikipedia (not that that is a completely reliable source)