US PATENT SUBCLASS 56 / 215
.~.~.~ Segment rack and pinion

Current as of: June, 1999
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56 /   HD   HARVESTERS

208  DF  PLATFORM ADJUSTMENTS {2}
210  DF  .~ Main frame {3}
214  DF  .~.~ Vertical {2}
215.~.~.~ Segment rack and pinion {1}
216  DF  .~.~.~.~> Simultaneous

DEFINITION

Classification: 56/215

Wherein the wheel-frame is pivoted to the main frame and carries a pinion, which meshes with a segment-rack on the main frame, the curvature of the segment-rack being concentric with the pivot of the wheel-frame and the pinion being rotated to raise or lower the main frame.