Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1990-07-23
1992-12-08
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
738665, G01N 112
Patent
active
051687640
ABSTRACT:
A method and apparatus for storing and releasing individual probes from a drop mechanism or probe rack which stores a number of these probes in a ready position for future use. The probe rack includes a plurality of radially projecting pins which are connected to, or comprise the piston rods of, a plurality of radially extending air cylinders. The individual probes are each provided with hanger loops which are suspended on the support pins in a ready position. Each of the probes may have a thermocouple assembly, or an oxygen sensor, or some other type of sensor. When it is desired to drop or release one of the probes, a switch is closed on a remotely located control panel to energize the appropriate air cylinders to withdraw the pin from the probe loop and allow the selected probe to drop into the additive chute of the vessel. The descent of the probe into the chute and through the chute into the molten metal bath is guided by the electric cable which has wires to connect the sensor to the instrumentation involved. The method includes dropping the probe so that an elongated pipe intermediate the length of the probe penetrates the slag and receives a skull of steel which adds to the weight of the second weight to add in maintaining the probe in an upright position.
REFERENCES:
patent: 3374122 (1968-03-01), Cole
patent: 3390578 (1968-07-01), Moore
patent: 3396580 (1968-08-01), Cole
patent: 3463005 (1969-08-01), Hanle
patent: 3577886 (1971-05-01), Wiese
patent: 3597975 (1971-08-01), Kern et al.
patent: 3673869 (1972-07-01), Stawarski et al.
patent: 3717034 (1973-02-01), Dukelow et al.
patent: 4964736 (1990-10-01), Lure et al.
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