Abstract: An apparatus for roadside spraying of herbicides or other liquids in a manner which ensures uniform application of the herbicide without resorting to atomization of the sprayed liquid. The apparatus provides means for uniformly applying the herbicide in a plurality of swaths at different distances from the spraying apparatus. The apparatus uses a means for vibrationally altering the directions of the sprayed liquid streams to ensure uniform coverage. The direction altering means allows the amplitudes of the direction alterations to vary in accordance with the target distance of sprayed liquid stream.

Abstract: A roadside spray apparatus having a spraying head with a plurality of nozzles mounted on the spraying head. The inclination of the spraying head is selectively adjustable to direct spray to a desired location. The spray head includes a plurality of independently operated nozzles oriented to spray side-by-side swaths at the side of a vehicle.

Abstract: An apparatus for pivoting a boom arm in a horizontal plane and for locking the boom arm in a fixed position on one side or another of a moving vehicle. The apparatus comprises a rocker arm with a locking mechanism at each end to engage and lock the boom arm in position in its fully rotated position at either side of the vehicle. The rocker arm is operatively connected to a hydraulic cylinder to pivot the rocker arm in a vertical plane to disengage the locking mechanism from the boom arm. A hydraulic motor has a rotating shaft connected to the boom arm to effect rotation of the boom arm from one side of the vehicle to the other.