Lower cutter of an apparatus for longitudinally slitting a web
US4646603A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 21, 1986 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | May 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9377
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The lower cutter of an apparatus for longitudinally slitting a continuous web is mounted for axial displacement along its support shaft to some desired position by the provision of one or more axial first slots provided in the outer periphery of the shaft, a fitting received in each slot underlying the cutter and fastened thereto, and roller bearings between and in contact with the undersurface of the fitting and the bottom of each first slot. One or more second slots are provided in the shaft periphery each receiving a pressure bar bearing against the undersurface of the cutter, and an expandable tube or pillow between the pressure bar and the bottom of the second slot is expanded for fixing the lower cutter in place after axial displacement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.