Control system for multiple stage reducing apparatus
US4079609A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 18, 1977 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | Feb 18, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21C1/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A control system for a multi-stage reducing apparatus having a series of material reducing stages through which elongate material is continuously advanced and progressively reduced in cross section. The control system is settable for establishing voltage analog signals representing the cross sections of the material at the plurality of successive stages and an input speed control signal for establishing the speed of the apparatus. A plurality of analog arithmetic units connected for being operated by the cross section signals and the speed control signal provide a plurality of speed reference signals for controlling the speeds of the material at the plurality of reducing stages respectively, each speed reference signal being directly proportional to the speed control signal and to the ratio of the cross sectional area of the material at the final stage to the cross sectional area of the material at the respective stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.