Earth planer

An earth grading machine comprising a power unit, a boom pivotally connected to and extending from the power unit, a generally vertical first strut depending from and pivotally connected at its upper end to the boom, a vertically inclinable track member disposed below the boom and pivotally connected to the lower end of said first strut, a second strut pivotally connected at one of its ends to the power unit and having a pivotal connection at its opposite end to one end of the track member, adjustable locking means for said pivotal connection, an earth moving element reciprocably guided by the track member for movement toward and away from the power unit and means actuatable by the power unit for reciprocating said element along the track member.

An earth grading machine comprising a reciprocable earth moving element, a vertically inclinable track member guiding reciprocatory movements of the earth moving element, support means for said track member accommodating its pivotal movement in a vertical plane about both a first axis adjacent one end of the track member and about a second axis spaced longitudinally of the track member from said first axis, power means associated with said support means for adjustably raising and lowering said second axis, other power means for reciprocating said earth moving element, and adjustable length means interconnecting the track member and support means in laterally offset relation to said first axis for selectively fixing the vertical inclination of the track member at various adjusted heights of said second axis.

An earth grading machine comprising a reciprocable earth moving element, a vertically inclinable track member guiding reciprocatory movements of the earth moving element, support means opposite one end of the track member, said track member having a first pivotal connection to said support means accommodating adjustment of the vertical inclination of the track member, means carried by said support means having a pivotal connection to the track member remote from and cooperating with said first pivotal connection in accommodating adjustment of the vertical inclination of the track member, adjustable locking means at one of said pivotal connections for fixably setting the vertical inclination of the track member, and power means for reciprocating the earth moving element.