Rotary knives shear machine
US4218944A · kind A · utility
6Cited by
3References
6Claims
0Family size
Inventor
Key dates
| Filing date | Mar 27, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Mar 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/4836
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Improvements relating to shear machines to cut advancing bars and particularly a rotary knives dividing shears cutting device, wherein one improvement relates to the conversion of a conventional rotary knives shear machine to a planetary rotary knives shear machine, working at a multiple ratio high speed, the other improvement provides planetary rotary knives working at a fractional ratio in order to keep the rotating knives always directed in the same shear direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.