Sheet inverting
US4019435A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Aug 21, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H15/008
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved paper handling system includes a pair of work units which sequentially work on opposite sides of a sheet with the same edge of the sheet leading. An inverter between the two work units is effective to invert the sheet in such a manner that the edge of the sheet which leads during passage of the sheet through the first work unit will also lead as the sheet passes through the second work unit. A sheet which has been worked on, first side up, by the first work unit will also lead as the sheet passes through the second work unit. A sheet which has been worked on, first side up, by the first work unit with a head edge of the sheet leading is moved by a first conveyor along a first path into engagement with a stop member which engages the head edge of the sheet to arrest it at a first readiness position. A pusher then engages a side edge of the sheet and pushes it sidewardly. The turnover mechanism is effective to move the sheet sidewardly along a generally U-shaped path into engagement with a stop to register the sheet at a second readiness position relative to the second work unit. A second conveyor is then effective to move the sheet into the second work unit with the head…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.