Double twisting spindle with a pneumatically operated threading device
US4386495A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Mar 5, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H15/007
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A double twisting spindle is equipped with a pneumatically operated threading device. An injector nozzle is provided in the spindle rotor, an air stream through which nozzle sucks a thread into a hollow spindle axle and moves the thread through a thread channel in the storage plate. A compressed-air supply device is arranged below the spindle rotor for supplying compressed air to a central connecting channel provided in the spindle rotor and in communication with the injector nozzle. A common operating lever is provided which first operates a spindle brake and then opens a valve of the compressed-air supply device. The connecting channel has at its open lower end a funnel-shaped enlargement. The compressed-air supply device is stationary and has a blow nozzle which is fixedly arranged a small distance from the lower end of the spindle rotor and has an outlet opening which is coaxial with the funnel-shaped portion, the diameter of the outlet opening being smaller than the inlet diameter of the funnel-shaped portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.