Apparatus for monitoring yarn travel at a multiple spindle spinning machine
US4150533A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1978 |
| Grant date | Apr 24, 1979 |
| Priority date | — |
| Expiry date | Jun 5, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H13/1691
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for monitoring yarn travel at a multiple spindle spinning machine which is equipped with a suction device servicing at least one group of the spindles. In a collecting channel of the suction device there is arranged a probe which upon passage therepast of fiber flocks or the like delivers an electrical signal to an evaluation circuit equipped with a periodically resettable signal counter having pre-settable counter value and an alarm device. The alarm device can be switched-in by means of a further cumulative counter with a higher, pre-set counter value. This further cumulative counter is coupled by means of a logic circuit with the periodically resettable signal counter in such a manner that the cumulative counter is reset whenever there is missing once or twice a signal from the periodically resettable signal counter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.