Automatic device for making samples for analysis
AssigneeSociete des Ciments Francais
InventorJean Dupain
Life of this patent
Estimating the term…
Abstract
A device is disclosed for continuously making samples to be analyzed by known instruments such as an X-ray spectrometer. The device consists of means for depositing a crude composition and associated vitrifying agent together in a crucible in accordance with a predetermined ratio by weight. The crucible is heated to melt its contents into an homogenous liquid mixture which is cooled to form a solid beadlet to be analyzed. The beadlet is conveyed to the analyzing instrument. A computer measures the respective weights of the components of the crucible contained composition and non-conforming weight measurements result in the crucible being discarded and replaced by another.
Claims21
A device for making samples for analysis, comprising:
- a furnace,
- a weighing station,
- a plurality of crucibles,
- a pair of carriers movable between first and second positions, each of said carriers having means for successively charging one of said crucibles at said station with one of two components of the sample when the carrier is in one of said positions,
- means for discarding said one crucible when the weight of one of the components therein differs from a predetermined amount,
- means for moving successive ones of a plurality of said crucibles to said station to be charged and to said furnace to melt the contents of the crucible,
- a mold adapted to receive the melted contents of the crucible to form the sample,
- means for transferring said melted contents to said mold and thereafter discarding the empty crucible, and
- control means for activating the means for charging, weighing, emptying and discarding of said crucibles.
Dependencies are inferred from the claim text.