Abstract: A device for continuously grinding the edges of moving metal foil comprises a stationary support on which a mobile support can slide perpendicular to the strip. The mobile support comprises a pivoting arm, the ends of which are provided with a roller for guiding the strip, lower and upper dressing rollers, an upstream tool holder, with at least one tool for dressing the edge and a downstream tool holder for chamfering the edge. The mobile support is brought into contact with the edge of the strip by the application of an adjustable pressure to the guide.

Abstract: Disclosed is a method of improving well logs, such as induction logs and LATEROLOGS, by taking into account the effect on a log measurement both of the particular bed in which it is taken and of one or more other beds. In one example the process starts with an original induction log and a provisional layered formation which is based thereon and is characterized by bed boundaries and constant induction log levels within a bed. A provisional reconstructed log is built up by applying the tool response to the layered formation by a new technique which makes this expedient enough to be practicable. The reconstructed log is matched against the original log, and the layered formation is refined accordingly, by adding and/or shifting boundaries and/or by changing the measurement levels within beds, until the match is satisfactory. The original log is then converted to an improved log on the basis of the latest layered formation.