Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1986-08-04
1989-01-17
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356385, G01N 2186
Patent
active
047989637
ABSTRACT:
The quality of rail wheels still attached to a rail vehicle or removed from the rail vehicle, is automatically monitored and measured for correction purposes as a rail vehicle or even an entire train passes through a measuring range. The measuring range includes auxiliary rails providing a running or reference plane, at least one diameter sensing device and at least one wheel tread profile quality sensing device. Both sensing devices can perform their function while a wheel or wheels are travelling through the measuring range. Signals provided by the sensing devices are supplied to signal processing and evaluating circuits which may provide a signal record and/or control signals for a wheel truing operation.
REFERENCES:
patent: 3897156 (1975-07-01), Chasson
patent: 3970847 (1976-07-01), Wood
patent: 4040738 (1977-08-01), Wagner
patent: 4181430 (1980-01-01), Shirota et al.
patent: 4531837 (1985-07-01), Panetti
patent: 4674869 (1987-06-01), Pryor et al.
patent: 4678920 (1987-07-01), Iadipaolo et al.
Coenen Wilfred
Elschenbroich Walter
Gruteser Helmut
Wittkopp Helmut
Fasse W. G.
Kane, Jr. D. H.
Nelms David C.
Ruoff Jessie
Wilhelm Hegenscheidt Gesellschaft mbH
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