A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
A01C 7/20 (2006.01)
Patent
CA 2327914
An apparatus for varying the rate of seed population by planters or drills, comprising first and second squeeze jack variable speed pulleys, and a belt running around the pulleys; a cog mounted on the first pulley and a cog mounted on the second pulley, and a drive chain running around the cog mounted on the first pulley and a row unit chain running around the cog mounted on the second pulley; and apparatus to vary selectively the speed of the row unit chain at any given speed of the drive chain.
Huffmeyer Edward H.
Smart & Biggar
LandOfFree
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