Method of and apparatus for controlling apparatus for perforatin

Details Method of and apparatus for controlling apparatus for perforatin Method of and apparatus for controlling apparatus for perforatin

1982-01-07

1985-02-26

Shaw, Clifford C.

Electric heating

Heating devices

Electric arc-type devices

83 74, 162263, 250571, 356430, G01N 1508, G01N 2100, H05B 718

Patent

active

045019533

ABSTRACT:
A method of and apparatus for controlling apparatus for perforating strips of paper by disruptive spark discharges. The perforate strip passes between two chambers, each of which has an opening facing the strip. Waves transmitted by a transmitter disposed in one of the chambers pass through these openings. The other chamber contains two receivers. The waves which have passed through the perforations are incident on one of the receivers. The waves which have passed through the imperforate area of the paper are incident on the other receiver. The perforating apparatus is controlled in dependence on the difference between the actual and desired values of the difference between the output signals of the two receivers.

REFERENCES:
patent: 2220736 (1940-11-01), Stockbarger et al.
patent: 2967947 (1961-01-01), Flook
patent: 2979984 (1961-04-01), Rosen
patent: 3407650 (1968-10-01), Dickinson
patent: 3435241 (1969-03-01), Hickey et al.
patent: 3549858 (1970-12-01), Larive et al.
patent: 3597616 (1971-08-01), Brunton
patent: 3624605 (1971-11-01), Aagard
patent: 3783296 (1974-01-01), Blevins
patent: 3810005 (1974-05-01), Bennion et al.
patent: 3812348 (1974-05-01), Lippke
patent: 4006358 (1977-02-01), Howarth
patent: 4047029 (1977-09-01), Allport
patent: 4148065 (1979-04-01), Nakagawa et al.
patent: 4297559 (1981-10-01), Whitman
patent: 4302105 (1981-11-01), Sick
patent: 4318180 (1982-03-01), Lundquist et al.
patent: 4345150 (1982-08-01), Tamura et al.
patent: 4366712 (1983-01-01), Bathmann et al.

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