Apparatus for measuring the interior dimensions of a cast iron m

Details Apparatus for measuring the interior dimensions of a cast iron m Apparatus for measuring the interior dimensions of a cast iron m

1980-07-01

1982-09-28

Krawczewicz, Stanley T.

Electricity: measuring and testing

Conductor identification or location

Inaccessible

324 61QS, G01R 2726

Patent

active

043520600

ABSTRACT:
A device for measuring the inside dimensions of a cast iron mold includes a measuring device movably arranged inside the cast iron mold on one or several guide rails. The measuring device comprises a rim with plates, each of which forms a capacitor together with an adjacent portion of the mold wall. An electronic unit for generating and subsequently processing signals corresponding to the capacitances of the separate capacitors provides an indication of the interior dimensions of the mold, based upon the capacitance measurements.

REFERENCES:
patent: 2177528 (1939-10-01), Kidd
patent: 3353098 (1967-11-01), Foster et al.
patent: 3400331 (1968-09-01), Harris
patent: 3748577 (1973-07-01), Jones, Jr.
patent: 3867691 (1975-02-01), Plessis
patent: 4112355 (1978-09-01), Gibson, Jr. et al.
patent: 4168465 (1979-09-01), Prince

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