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Tailings monitor for combine harvester

  • US 4,441,513 A
  • Filed: 07/30/1982
  • Issued: 04/10/1984
  • Est. Priority Date: 07/30/1982
  • Status: Expired due to Term
First Claim
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1. In a combine harvester vehicle having crop cutting means and threshing and separating stages operative to separate the grain from the other crop material and a cleaning stage operative to substantially remove chaff and the like from the grain received from the threshing and separating stages and including a tailings portion operative to separate incompletely threshed and separated tailings from the grain, said harvester vehicle also having a tailings return elevator for conveying said tailings from said tailings portion to one of said stages for recycling, the improvement comprising means for transmitting a radiant energy beam internally of said elevator transversely across the path of said tailings being conveyed in said elevator, and means for providing a visual indication proportional to the percentage of time that said beam is interrupted by said tailings being conveyed in said elevator, said last mentioned means including a detector in the path of said beam.

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