Automatic drafting device with adjusting aid

Details Automatic drafting device with adjusting aid Automatic drafting device with adjusting aid

1983-04-21

1985-05-28

Martin, Jr., William D.

Geometrical instruments

Scriber

Straight-line

33 18R, 33189, B43L 2400

Patent

active

045191387

ABSTRACT:
In an automatic drafting device having a carriage with toothed wheels in meshed engagement with a toothed rack which extends across a planar drafting surface and with a control mechanism for controlling movement of a stylus on the carriage to effect drafting operations, there is provided an adjusting aid arranged at the stylus for determining a writing position and a compensating control mechanism for automatically compensating for the distance between the writing position determined by the adjusting aid and the position of the stylus, this compensation being performed when the distance is greater than zero.

REFERENCES:
patent: 2583578 (1952-01-01), Lowndes
patent: 2618860 (1952-11-01), Engelhart
patent: 2730811 (1956-01-01), Gouldsmith
patent: 2934829 (1960-05-01), Bohn

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