Woodworking – Rotary cutter – Solid
Patent
1990-02-16
1991-04-09
Britts, Ramon S.
Woodworking
Rotary cutter
Solid
299 93, 144 2N, 144235, B27G 1304
Patent
active
050056220
ABSTRACT:
A block and locking mechanism and cutter bit for a stump grinding machine. The block having a shank receiving cavity being defined by a surrounding irregularly shaped inner wall that includes a pair of opposed end walls interconnected by a pair of opposed side walls with each side wall being tapered inwardly from the opposed end walls such that the cavity has a varying width from end wall to end wall. The cutter bit including a shank adapted to be received within the cavity of the block with the shank having a cross-section that generally conforms to the shape of the cavity such that the cutter bit is prevented from rotating when inserted within the cavity and held within the block. The cutter bit and block also include, respectively, retaining notches formed on opposite sides of the cutter bit shank and angled set screws disposed within set screw bores formed in the block and adapted to extend into engagement with the respective retaining notches formed on opposite sides of the shank so as to retain the shank within the block.
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Beach Wayner H.
Den Besten Leroy E.
Rowlett Don C.
Bagnell David J.
Britts Ramon S.
Kennametal Inc.
Meenan Larry R.
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