Cutting – Rotatable disc tool pair or tool and carrier – Tool pair comprises rotatable tools
Patent
1988-10-17
1990-05-08
Yost, Frank T.
Cutting
Rotatable disc tool pair or tool and carrier
Tool pair comprises rotatable tools
83344, 83503, 835082, B23D 1904, B26D 124
Patent
active
049227785
ABSTRACT:
In an apparatus for cutting a metal sheet, a pair of hollow shafts are mounted in a housing for angular movement relative thereto. The hollow shafts have respective hollow bores whose respective axes are eccentric to the axes of the respective hollow shafts. A pair of holder shafts are rotatably fitted respectively in the hollow bores. A pair of circular cutting blades are mounted respectively on projecting forward ends of the respective holder shafts in concentric relation thereto for rotation with the respective hollow shafts. When the holder shafts are rotated to rotate the cutter blades, the cutter blades cooperate with each other to cut a metal sheet caused to pass between the cutter blades. An interlocking unit is arranged between the hollow shafts, for enabling the hollow shafts to be moved angularly about their respective axes in an interlocking fashion, thereby moving the axes of the respective holder shafts toward and away from each other to adjust an amount of lap between the cutting blades.
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patent: 4781095 (1988-11-01), Yoshida
Sky Aluminum Co., Ltd.
Smith Scott A.
Yost Frank T.
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