Winding-form inspecting apparatus for wound-yarn packages

Details Winding-form inspecting apparatus for wound-yarn packages Winding-form inspecting apparatus for wound-yarn packages

1986-09-09

1989-09-12

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250562, 356238, G01N 2188

Patent

active

048662895

ABSTRACT:
A winding-form inspecting apparatus for wound-yarn packages comprising a first projecting portion for irradiating light against the surface of a yarn layer of a package substantially at right angles thereto, a first light receiving portion for receiving a reflecting light caused by the first projecting portion, a second projecting portion for irradiating light against the surface of the yarn layer in an oblique direction, and a second light receiving portion for receiving a reflecting light caused by the second projecting portion.

REFERENCES:
patent: 3712743 (1973-01-01), Harris et al.
patent: 3777168 (1973-12-01), Sansone
patent: 3801031 (1974-04-01), Kamp et al.
patent: 3892492 (1975-07-01), Eichenberger
patent: 4091368 (1978-05-01), Schwartz
patent: 4221242 (1980-09-01), Eichenberger
patent: 4276910 (1981-07-01), Eichenberger

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