Pendulum design machine

Details Pendulum design machine Pendulum design machine

1986-11-06

1987-11-03

Haroian, Harry N.

Geometrical instruments

Scriber

Curved line

B43L 1106, B43L 920

Patent

active

047035625

ABSTRACT:
A drawing device (1), utilizing a first pendulum (2) and a second pendulum (3), wherein a relatively frictionless ball (67) and socket (68) joint transfers the resultant motion of the pendulums to a writing instrument (75). A deformable gripping element (22) permits rapid attachment and removal of pendulum weights (17 and 28) from their respective vertical support arms (4 and 14).

REFERENCES:
patent: 1869951 (1932-08-01), Worthington
patent: 3143807 (1964-04-01), Christie
patent: 3324556 (1967-06-01), Everett
patent: 3494037 (1970-02-01), Arber
patent: 3977085 (1976-08-01), Sandifer
patent: 4162577 (1979-07-01), Cosman
patent: 4199867 (1980-04-01), Cass
Description of a pendulum design machine which was in existence approximately 35 years ago.

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