Pencil device for plotting machine

Details Pencil device for plotting machine Pencil device for plotting machine

1984-04-06

1985-09-10

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

Stylus feature

33 18R, G01D 1524

Patent

active

045409951

ABSTRACT:
A pencil device for a plotting machine comprises a housing (10) including a barrel (13) with a passage (13a) therethrough for receiving a lead (12) said passage having an exit for the lead at a forward end of said barrel; lead feeding means (11, 14, 15) located in said housing for containing spare leads and for continuously feeding the passage of said barrel with a lead; lead driving means (16, 17) for pressing the lead located in the passage against the recording medium during a writing operation; and means (36) for urging the forward end of the barrel in contact with the recording medium so that a consumed lead is replaced by a new lead without interrupting a trace being produced.

REFERENCES:
patent: 4015269 (1977-03-01), Edo

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