Ink recorder with grooved pressure roller feed

Details Ink recorder with grooved pressure roller feed Ink recorder with grooved pressure roller feed

1976-09-10

1977-12-06

Miller, Jr., George H.

Recorders

Record receivers and/or driving means therefor

Web

226 84, G01D 1524, G03B 124

Patent

active

040620212

ABSTRACT:
An anti-smudge bar for a recorder is disclosed wherein the recorder has a drive means for advancing a strip chart in a longitudinal direction. The strip chart, as it advances, passes over a platen disposed upstream of the advancing means. A pressure roller adjacent the upstream side of the platen presses the strip against the platen. The pressure roller has a plurality of longitudinal grooves spaced by sharp crests which contact the chart in a manner preventing smudging of wet ink traces previously recorded on the chart. The ink traces are recorded on the chart by a recording pen which is movable in a direction transverse to the direction of chart movement. The roller and the pen are lifted from chart contact whenever the chart direction is reversed to permit subsequent recording on a chart segment previously recorded on.

REFERENCES:
patent: 2660380 (1953-11-01), Blackman et al.
patent: 3160465 (1964-12-01), Oppel
patent: 3285484 (1966-11-01), Johnson
patent: 3475763 (1969-10-01), Hardway, Jr.

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