Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1980-03-17
1982-01-19
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
57 81, G01N 2186
Patent
active
043119166
ABSTRACT:
A travelling scanning apparatus for successively checking the working conditions at the spinning position of a ring spinning machine is enabled, in order to determine whether a yarn breakage has occurred at a spinning position, and, in the affirmative case, whether there prevails a danger of damage due to lap-up formation on a roll of the drafting arrangement. Using a yarn feeler first the presence of a normally spun yarn is detected. If no yarn is present, the broken yarn suction nozzle, which is used for eliminating the fibres not spun in, is lowered from its normal working position into a scanning position, and an optimum fibre stream is obtained between the delivery rolls of the drafting arrangement and the lowered nozzle for scanning using a second feeler. In case of non-presence of this fibre stream, that is in case possible lap-up formation, a roving supply interrupting device is activated and the roving supply to the drafting arrangement is interrupted.
REFERENCES:
patent: 3992865 (1976-11-01), Tuchida et al.
patent: 4137699 (1979-02-01), Stahlecker et al.
patent: 4186309 (1980-01-01), Gnuechtel
Kleeman Werner W.
Nelms David C.
Rieter Machine Works Ltd.
LandOfFree
Travelling scanning apparatus for successively scanning the work does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Travelling scanning apparatus for successively scanning the work, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Travelling scanning apparatus for successively scanning the work will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1917032