| 摘要 |
Kerf forming disc cutters are closely grouped on a cutter carrier. Where space permits a plural and equal number of cutter wheels are placed on each cutter path. A faster turning center cutter assembly is provided in the form of (1) a single abrasion type tri-cone cutter driven by either a stationary frame mounted on the carrier, or (2) an inner cutter carrier occupying the center region immediately radially inwardly of the location of the last cutter path involving plural cutter wheels, with a single kerf forming disc cutter wheel located on each circular cutter path of the inner cutter carrier.
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