Patent · US Expired

Control arrangement for causing track supported implement to remain in parallelism with itself

US4095160A · kind A · utility

4Cited by
1References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 4, 1976
Grant dateJun 13, 1978
Priority date
Expiry dateJun 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.