Drawing table with a telescopic arm

Details Drawing table with a telescopic arm Drawing table with a telescopic arm

1976-11-09

1978-05-09

Stephan, Steven L.

Geometrical instruments

Scriber

Curved line

33 79R, 403109, B43L 1300

Patent

active

040879160

ABSTRACT:
A drawing table has a drawing board with a telescopic arm slidably mounted on a rail secured to the board. The telescopic arm has a base sliding on the rail and the other end of the telescopic arm supports a drawing set. The telescopic arm includes braking means provided by magnetic strips arranged along each telescoping member of the arm with magnets fixed to the members facing the magnetic strips.

REFERENCES:
patent: 1557923 (1925-10-01), Carroll
patent: 2168188 (1939-08-01), Bernhard
patent: 2173146 (1939-09-01), Wright
patent: 2772550 (1956-12-01), Harrington
patent: 3115706 (1963-12-01), Butler
patent: 3180028 (1965-04-01), Roccati

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