Patent ID: 6155759
Filing Date: 2000-12-05
Classification: B23D,B23Q,Y10T

Abstract:
An apparatus for milling the surface of a low slope substrate, comprising:a milling device;a track along which the milling device may move, said track comprising a pair of parallel rails along which are spaced a plurality of rungs, said rails and said rungs forming a ladder structure;a plurality of adjustable supports for the track, the supports having adjustment means for orienting the track horizontally or at a desired angle to horizontal above the substrate;a mounting assembly for the milling device, the assembly having means for engaging the track and enabling movement of the assembly along the track, the milling device depending from the mounting assembly, the means for engaging the track comprising a plurality of rail engaging rollers mounted on a top plate of the mounting assembly; andadjustment means coacting with the milling device and the mounting assembly enabling the device to be oriented in a desired manner relative to the substrate;wherein the mounting assembly comprises a bottom Plate rotatable attached to the top plate, and the top and bottom plates of the mounting assembly are rotatably attached to one another by a shaft and roller bearing assembly affixed centrally to each plate.