Feed chute arrangement for textile machines, such as carding machines
US4878784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 1987 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Dec 28, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G23/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A feed chute arrangement for textile machines, such as carding machines includes a feed chute having a plurality of walls one of which is gas-permeable to let gaseous medium to escape from the interior of the feed chute into a neighboring gas output chamber that is bounded by a plurality of additional walls different from the gas permeable wall. One of these additional walls is provided with an opening at which there is pivotally mounted a plate-shaped blocking flap selectively movable between its closed position and a plurality of open positions in which it offers various amounts of resistance to the flow of the gaseous medium from the gas output chamber through the opening into a connecting conduit and eventually into a discharge passage. Fiber material entrained in the gaseous medium and travelling therewith in a transporting duct enters the interior of the feed chute through an open upper end and deposits in the form of a fiber body at the lower end of the interior of the feed chute to be fed therefrom by a pair of feeding rollers. The gaseous transportation medium leaves the interior of the feed chute through the gas-permeable wall and then flows through the gas output chamber…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.