Signals and indicators – Vehicle – Curb feelers
Patent
1995-06-12
1996-12-03
Cuchlinski, Jr., William A.
Signals and indicators
Vehicle
Curb feelers
116303, 33286, 33624, 33645, 172430, G01C 702, A01B 6900
Patent
active
055797164
ABSTRACT:
A device for indicating the relative position of a tractor with respect to a crop row or planter mark including a vertically disposed, hollow support post secured to the forward end of the tractor at the centerline thereof. A rotatable shaft is mounted in the support post and has an upper end positioned above the support post and a lower end positioned below the lower end of the support post. A linkage is connected to the lower end of the shaft and has a follower positioned rearwardly thereof which follows the crop row or planter mark. An indicator is secured to the upper end of the shaft for movement therewith. As the tractor drifts laterally with respect to the crop row or planter mark, the indicator moves indicating to the tractor operator that the tractor must be steered back into alignment with the crop row or planter mark.
REFERENCES:
patent: 1166680 (1916-01-01), Hanson
patent: 1545233 (1925-07-01), Caldwell
patent: 2538112 (1951-01-01), Maier
patent: 2945470 (1960-07-01), Kolbe
patent: 3392697 (1968-07-01), Parrish et al.
patent: 3402784 (1968-09-01), Roberson et al.
patent: 3857455 (1974-12-01), Ernst
patent: 4414903 (1983-11-01), Fasse et al.
Cuchlinski Jr. William A.
Hirshfeld Andrew
Thomte Dennis L.
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