Advancing material of indeterminate length – Convertible
Patent
1984-07-16
1985-04-23
Crowder, Clifford D.
Advancing material of indeterminate length
Convertible
226181, 226196, 242183, 346136, 400578, B65H 2300, B65H 2304
Patent
active
045125058
ABSTRACT:
A convertible platen for use in a graphics plotter to allow its selective use as either a cut paper plotter or a roll paper plotter. The platen is formed from a specially designed aluminum extrusion and a pair is mounted with one on either side of the drum of a drum plotter between the drum and the supply/takeup rollers. The platens can be raised and held adjacent the drum and spanning the vacuum columns in the plotter to create a table having curved outer edges to support cut paper. They can be released and dropped into the vacuum columns whereby they lie against the outer surfaces and form the upper inner wall with curved upper edges over which paper smoothly is guided between the vacuum columns and the supply/takeup rollers.
REFERENCES:
patent: 3643889 (1972-02-01), Krause
patent: 4158846 (1979-06-01), Gordon
Leder Uri
Westly Pernie E.
Crowder Clifford D.
Etlinger Louis
Porter, Jr. William F.
Sanders Associates Inc.
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