Patent ID: 8992119
Filing Date: 2015-03-31
Classification: E01C

Abstract:
1. A machine for restoring a roadway shoulder from concurrently reclaimed shoulder material, the machine including a support frame movable in a direction of travel along a roadway and further comprising: (a) a grader blade mounted to the support frame, oriented transversely of the direction of travel and adjustably rotatable about an axis along the direction of travel for tilting the blade with respect to the transverse contour of the roadway; (b) an auger-grinder mounted to the grader blade or the support frame and comprising an auger having a first helical vane fixed to a rotatable axle with a plurality of teeth attached to and protruding outwardly from the auger wherein the teeth are fixed to and along outer peripheral edges of the helical vane; (c) a shroud mounted above and partially surrounding the auger-grinder and having an inner shroud end wall, an outer shroud end wall and bearings in which the axle is journaled between the end walls transverse to the direction of travel; (d) a beater fixed to the axle between an inner end of the helical vane and the inner wall, the beater having a plurality of paddles extending outwardly from the axle; (e) an inner barrier wall attached to the inner shroud wall and extending forward of the auger-grinder, wherein a catch flange is attached to the inner barrier wall aligned along the direction of travel and extending laterally outwardly in the direction of the auger-grinder, the inner barrier wall being vertically adjustable for fixing the flange at a selected distance lower than radial extremities of the beater; (f) a drive link connected to the axle for connection to a prime mover for driving the axle in rotation; and (g) a downwardly extending vertically adjustable outer leg attached to the outer shroud wall and having a shoe pivotally mounted at a bottom end, the outer leg shoe for riding along the shoulder outwardly of the auger-grinder for permitting adjustment of the distance between the pre-existing shoulder surface and the depth of the auger-grinder teeth below the pre-existing shoulder surface; wherein, in an operable orientation, the blade is laterally inclined to the roadway and lower at its outer end than its inner end and wherein the teeth at the outer end of the auger-grinder extend downward below the axis of the axle a distance that is greater than the downward position of the shoe that is attached to the outer leg.