Strand break detector

Details Strand break detector Strand break detector

1983-12-05

1986-08-26

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

57 61, G01N 2189, G01N 2186

Patent

active

046084967

ABSTRACT:
Strand break detector for monitoring a number of straightened strands extending along a number of predetermined paths, with regard to a broken or missing strand. An optical transmitter with light-receiving means is arranged to supply, at relative motion between strands and transmitter transversely of the strands, a signal for each passing strand. A shield is arranged as a spacer in front of the light-receiving means and forms an inlet for light to the light-receiving means, and a slide surface for guiding the strands engaging the slide surface, past the light inlet at relative movement between the strands and the transmitter.

REFERENCES:
patent: 3345812 (1967-10-01), Pickering
patent: 3621267 (1971-11-01), Dent
patent: 4194840 (1980-03-01), Lucas et al.
patent: 4213056 (1980-07-01), Matsumura et al.
patent: 4341958 (1982-07-01), Ohsawa
patent: 4471816 (1984-09-01), Wada

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