Method and apparatus for feeding sheets, particularly fabrics from a stack
US4635917A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1984 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Dec 5, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H3/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for feeding sheets, particularly fabrics, from a stack comprises an arrangement for: engaging the opposite edges of the upper sheet of the stack by a pair of restrainer members, bringing a pick-up head into engagement with the upper sheet of the stack while producing air streams from the pick-up head directed outwardly across the opposite edges of the upper sheet of the stack, lowering the pick-up head to depress the stack below the restrainer members whereby the air streams cause the opposite edges of the upper sheet of the stack to curl upwardly to clear the restrainer members, lifting the upper sheet from the stack, and permitting the stack to rise so as to bring the next sheet into engagement with the restrainer members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.