Measuring and testing – Liquid level or depth gauge – Float
Patent
1977-05-25
1979-01-23
Gorenstein, Charles
Measuring and testing
Liquid level or depth gauge
Float
74 63, G01F 2306
Patent
active
041353986
ABSTRACT:
A device for measuring the depth of a body of water and for marking the position of measurement to facilitate structural fishing. The device comprises a base for supporting an annular scale for rotation relative to said base. Float means is provided for supporting the device in the water with a portion of the scale above the surface of the water and with its axis of rotation horizontal. Also provided is a rotatable spool having a line wound around the spool. A weight is connected to the free end of the line for unreeling the line as the weight sinks in the water. Means is coupled between the spool and the annular scale and is responsive to rotation of the spool for rotating the annular scale an amount which is a function of the length of line unreeled from the spool as the weight sinks in the water.
REFERENCES:
patent: 608741 (1898-08-01), Wood
patent: 1287580 (1918-12-01), Dumaine
patent: 2685742 (1954-10-01), Johnson
patent: 3529480 (1970-09-01), Kaspareck
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