Depth determination apparatus

A depth determination apparatus is described. The depth determination apparatus includes a rotatable reel for receiving a length of line, a free end of the line being adapted to receive a weight, a hollow elongate leader assembly through which the line is played out and retracted, a measuring arrang...

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Bibliographische Detailangaben
Hauptverfasser: COOK GARY ALLAN, STEPHENS PETER DAVEKUMAR
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A depth determination apparatus is described. The depth determination apparatus includes a rotatable reel for receiving a length of line, a free end of the line being adapted to receive a weight, a hollow elongate leader assembly through which the line is played out and retracted, a measuring arrangement for measuring the length of line played out and/or retracted through the hollow elongate leader; and a drive means for at least retracting the line through the hollow elongate leader.