Boots – shoes – and leggings
Patent
1979-10-04
1981-05-05
Ruggiero, Joseph F.
Boots, shoes, and leggings
83 76, 318601, G06F 1546, B26D 520
Patent
active
042662761
ABSTRACT:
A cutting control apparatus for cutting, by a rotary type flying cutter, a sheet, pipe or like material fed by a feeder. On the basis of a synchronous cutting length corresponding to setting of a blade speed change mechanism of the flying cutter and one of a travelling speed signal of the material and the revolving speed of a blade of the cutter, a reference speed signal is produced for the other of the material travelling speed and the blade revolving speed. One of a signal related to length-measuring pulses corresponding to the distance of travel of the material and a signal related to rotation pulses corresponding to the rotation of the blade is applied as an additive input to an adder, and the other is applied as a subtractive input to the adder. The adder is supplied, for each cutting, with a correction value calculated by an arithmetic circuit on the basis of a set cutting length and the synchronous cutting length, and the output from the adder is converted into an analog signal, which is used as a correction signal for the reference speed signal.
REFERENCES:
patent: 3668957 (1972-06-01), Nido
patent: 4020406 (1977-04-01), Tokuno et al.
patent: 4091315 (1978-05-01), Hayashi et al.
patent: 4170155 (1979-10-01), Saito et al.
Hayashi Shigeki
Okamoto Takemitsu
Nusco Kabushiki Kaisha
Ruggiero Joseph F.
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