Boots – shoes – and leggings
Patent
1985-10-24
1987-09-22
Smith, Jerry
Boots, shoes, and leggings
B23F 500, H02P 500
Patent
active
046959602
ABSTRACT:
In a hobbing machine for producing a gear from a workpiece, a device for controlling the rate of rotation of the workpiece in accordance with the motion of a cutting tool compensates for a lag in a feedback loop servo control and concomitantly in the rotation of the workpiece. The device calculates a correction quantity from the actual velocity of the tool and the loop gain of the feedback loop servo control and feeds the correction quantity thereto.
REFERENCES:
patent: 3987350 (1976-10-01), Pomella et al.
patent: 4053819 (1977-10-01), Matsumoto
patent: 4096770 (1978-06-01), Tanner
patent: 4253050 (1981-02-01), Angst
patent: 4329096 (1982-05-01), Herscovici
Basilowski Herbert
Reimann Jurgen-Andreas
MacDonald Allen
Siemens Aktiengesellschaft
Smith Jerry
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