Chart having improved separability from a stacked array

Details Chart having improved separability from a stacked array Chart having improved separability from a stacked array

1982-03-15

1983-08-30

Griffin, Donald A.

Recorders

Record receivers and/or driving means therefor

Disc

G01D 1524

Patent

active

044019971

ABSTRACT:
A recording chart of the type carried as one of a stacked array on a chart-driving and changing mechanism which functions periodically to separate the top chart from the stacked array. A zonal portion of the chart adjacent to a slit is integrally deformed to provide an open-ended socket or slot in the chart to facilitate intrusive penetration of a blade-like lip of a rotatable release button or hub of the chart changer, cleanly, between a top chart of the stack and a chart therebeneath, to lift and displace the chart while preventing the release button from cutting into the top chart itself adjacent a blade-facing edge thereof.

REFERENCES:
patent: 2978287 (1961-04-01), Daugherty
patent: 4224629 (1980-09-01), Welker

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