Title: Tracing table

Abstract: This tracing table of the type having two tracing arms, namely an upper arm and a lower arm, has the upper arm mounted in a plane located above that of the lower arm, in relation to the tracing plane, and the upper arm, in addition to the pen lifting mechanism comprises a pen retraction mechanism adapted to retract the tracing pen of the upper arm up to a level higher that of the lower arm, so that the two arms can cross each other. Each arm may comprise two ink pens, and each pen of the upper arm is provided with a corresponding retraction mechanism.

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Inventors: Guyot, Pierre (Franconville, FR)
Delfau, Paul (Villiers le Bel, FR)
Amaury, Robert (Gretz Armainvilliers, FR)

Application Number: 926124
Filing Date: 1978-07-19
Publication_date: 1980-01-29
Assignee: Ifelec, Societe Anonyme (Couerbevoie, FR)
Primary Class(es): 346/29 33/18.1, 346/49
Other Classes:
US Patent Ref:

1996386	Apr, 1935	Owen	33/32.
2224182	Dec, 1940	Crooke	346/29.
2596305	May, 1952	Stevens	346/49.
2714047	Jul, 1955	Dehmel	346/8.
3196446	Jul, 1965	Ingerson et al.	346/29.

Other Refs:
Primary Examiner: Shepperd, John W.
Assistant Examiner:
Attorney: