Recorders – Record receivers and/or driving means therefor – Web
Patent
1982-02-01
1983-12-13
Griffin, Donald A.
Recorders
Record receivers and/or driving means therefor
Web
G01D 1524
Patent
active
044207620
ABSTRACT:
A chart recorder useful in a marine depth sounder or in other applications. Chart paper for the recorder is loaded into a paper cartridge, which is insertable in the recorder. The paper cartridge supports a roll of chart paper, a takeup spindle for winding the paper, and a viewing surface across which the paper travels after data marks are recorded on the paper. An internally-driven roller within the recorder frictionally engages the takeup spindle when the cartridge is in place, so as to move the chart paper at a selected linear speed. The drive roll is operated by an electric motor and a multiple-stage compound reduction gear arrangement, all entirely contained within the drive roller.
The paper marking stylus of the recorder makes full-time contact with a stylus engaging surface throughout each revolution of the stylus drive belt. An inductive sensing device is located between sides of the drive belt, and senses a magnet carried on the outside of the belt.
The chart recorder includes a door which can be hinged downwardly for access to the paper cartridge, or can be entirely removed from the recorder for that purpose. A lighted range indicating scale is attached to the door, and an improved scale illumination arrangement internally illuminates the scale.
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patent: 3683403 (1972-08-01), Okino
patent: 4038666 (1977-07-01), Fuller
patent: 4053900 (1977-10-01), Strange
Griffin Donald A.
Techsonic Industries, Inc.
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