Cutting – Cutting motion of tool has component in direction of moving... – Orbital motion of cutting blade
Patent
1981-01-26
1983-08-23
Meister, James M.
Cutting
Cutting motion of tool has component in direction of moving...
Orbital motion of cutting blade
83 37, B23D 2512
Patent
active
043997279
ABSTRACT:
A drum type shear includes a pair of rotatable drums, each drum including a shearing blade. The circumferential velocity of the outer edge of a first blade is greater than the circumferential velocity of the outer edge of a second blade, such that upon rotation of the drums with a workpiece passing therebetween, after the workpiece has been initially bitten between the blades, shearing of the workpiece is completed while the outer edge of the first blade overtakes the outer edge of the second blade.
REFERENCES:
patent: 1680048 (1928-08-01), Iversen
patent: 3000250 (1961-09-01), Altmann et al.
patent: 3068731 (1962-12-01), Schultz et al.
patent: 3431830 (1969-03-01), Stovall
patent: 4202230 (1980-05-01), Obinata
Hashimoto Shoichi
Hayashi Kanji
Hiasa Yukio
Maeda Nobutaka
Omori Shunji
Meister James M.
Mitsubishi Jukogyo Kabushiki Kaisha
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