Tracer head

Details Tracer head Tracer head

1978-12-01

1979-12-11

Kozma, Thomas J.

Geometrical instruments

Scriber

Pantographic

33174L, 336 30, 336135, B43L 1310, H01F 2106

Patent

active

041775678

ABSTRACT:
This disclosure relates to a novel tracer head comprising a stylus, stylus support and housing, and two perpendicular differential transformers. The stylus has a unique configuration enabling more precise memory of its null position when the stylus is not deflected. Further, the stylus has a rotating top pin for contacting the pattern or template that assures a condition assumed in tracer control systems but not achieved under all conditions, i.e., the stylus will deflect away from the template normal to the template edge.

REFERENCES:
patent: 2552722 (1951-05-01), King
patent: 2839733 (1958-06-01), Bassett
patent: 2864066 (1958-12-01), Egbert et al.
patent: 2899653 (1959-08-01), Capron
patent: 2937577 (1960-05-01), Morgan, Jr.
patent: 2979959 (1961-04-01), Clurman
patent: 3145623 (1964-08-01), Fillmore et al.
patent: 3251013 (1966-05-01), Klein et al.
patent: 3331971 (1967-07-01), Moller
patent: 3845561 (1974-11-01), Elsdoerfer

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