A - Human Necessities – 01 – F
Patent
A - Human Necessities
01
F
214/87.1
A01F 12/00 (2006.01) A01D 90/08 (2006.01)
Patent
CA 1169820
INTERLOCK SELECTOR CONTROL VALVE FOR ROUND BALE WAGON ABSTRACT OF THE DISCLOSURE A control valve for the hydraulic system of a round bale wagon is disclosed wherein the valve spool is selectively positionable between a cross conveyor mode and a pusher mode and also provides a hydraulic interlock for the operation of the load bed to pivotally rotate for the unloading of bales therefrom. Movement of the valve spool between the cross conveyor and the pusher modes effects a selection of the operation of the bale handling mechanism to either convey bales laterally across the load bed or rearwardly on the load bed. The provision of 2 hydraulic interlock prevents the operation of the load bed to pivotally rotate the forward end above the frame of the bale wagon and unload accumulated bales therefrom, unless both the cross conveyor and the bale pickup are in a position that would not interfere with the movement of the load bed and, therefore, prevent damage thereto. Although the pusher advance mechanism could be positioned in an interferring position with respect to the tilting load bed, the massive size of these two members prevents any substantial damage, should they impact with one another; however, the pusher advance mechanism is positionable in a non-interferring position relative to the load bed.
399759
Askov Alan R.
Butler L. Dennis
Smart & Biggar
Sperry Corporation
LandOfFree
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