Positioning apparatus for boom structures

Details Positioning apparatus for boom structures Positioning apparatus for boom structures

1981-03-30

1983-07-26

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With mobile tank-type supply means

Spray boom or bar type distributor

A01C 2304

Patent

active

043949681

ABSTRACT:
The present invention is directed to a mechanism for angularly centering a boom structure as it is being elevated from a lower operating position to an elevated, transit position. A boom structure is pivotally mounted on a pin member. A hydraulic cylinder moves the pin member and the boom structure upwardly or downwardly. As the boom structure is moved from a lower, operating position to an upper, transit position, a pair of chains, one attached between the boom structure and the vehicle holding it on each side of a vertical plane passing through the pin member, self-centers the boom structure.

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