Control arrangement for causing track supported implement to remain in parallelism with itself
US4095160A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1976 |
| Grant date | Jun 13, 1978 |
| Priority date | — |
| Expiry date | Jun 4, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66C9/16
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A control arrangement, especially for use with a track supported implement, having an elongated beam with carriages at the opposite ends supported on respective tracks in which pick-up elements on at least one of the carriages are sensitive to movement of the respective carriage in a horizontal plane and about a vertical axis on the respective track. The pick-up elements are longitudinally spaced on the curve and supply respective signals to a comparator which emits a control signal which varies as the difference between the pick-up signals varies. The control signal is employed for developing an influence on the beam tending to restore it to the condition of parallelism with itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.