Method and apparatus for gauging the corsslevel and warp of rail

Details Method and apparatus for gauging the corsslevel and warp of rail Method and apparatus for gauging the corsslevel and warp of rail

1990-02-09

1991-08-06

Cuchlinski, Jr., William A.

Geometrical instruments

Straight-line light ray type

Alignment device

33338, 33 1Q, 104 72, E01B 3502, G01C 900

Patent

active

050365940

ABSTRACT:
The crosslevel measuring adapter includes a battery-powered electronic level sensor, a processor unit, a display, and data, display and power switches mounted in a housing through which an inclination measuring bar passes. The adapter unit may be mounted anywhere intermediate the ends of the bar which engage spaced railroad tracks during a measurement cycle. When the power switch is activated, the adapter initiates a zero mode to determine an automatic zero offset value to be automatically applied to subsequent crosslevel measurement values. The adapter calculates warp and crosslevel index values from a plurality of crosslevel measurements, and if the warp or crosslevel index values exceed respective threshold levels, automatic display of the value is initiated. Otherwise, measured crosslevel values are automatically displayed and calculated values are displayed by activation of the display switch.

REFERENCES:
patent: 3130502 (1964-04-01), Stewart
patent: 3364579 (1968-01-01), Fisher
patent: 3505742 (1970-04-01), Fiechter
patent: 3594912 (1971-07-01), Sauterel
patent: 3775859 (1973-12-01), Sauterel
patent: 3835546 (1974-09-01), Jaquet
patent: 3869805 (1975-03-01), Dieringer
patent: 4538061 (1985-08-01), Jaquet
patent: 4655142 (1987-04-01), Theuner et al.
patent: 4673854 (1987-06-01), Patton et al.

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