초록 ▼

An apparatus for removing surface irregularities from a flat workpiece includes one or more abrading assemblies through which the workpiece passes sequentially. Each abrading assembly has a lower contact assembly and an upper contact assembly. The upper contact assembly is precisely spaced above the

An apparatus for removing surface irregularities from a flat workpiece includes one or more abrading assemblies through which the workpiece passes sequentially. Each abrading assembly has a lower contact assembly and an upper contact assembly. The upper contact assembly is precisely spaced above the lower contact assembly in opposing parallel relation to the lower assembly. The lower and upper contact assemblies reciprocate in opposing directions to provide abrading action to the workpiece.

대표청구항 ▼

[ What is claimed is:] [1.] An apparatus for abrading a flat workpiece, the workpiece having a first surface and a second surface generally opposing the first surface, the apparatus comprising:means for transporting the workpiece across a work path;a first abrading assembly comprising:a lower contac

[ What is claimed is:] [1.] An apparatus for abrading a flat workpiece, the workpiece having a first surface and a second surface generally opposing the first surface, the apparatus comprising:means for transporting the workpiece across a work path;a first abrading assembly comprising:a lower contact assembly, the lower contact assembly having a first contacting platen, the first contacting platen having a first contact surface for abrading the first surface of the workpiece, said first contact surface being capable of fully contacting said first surface of the workpiece; andan upper contact assembly, the upper contact assembly positioned above the lower contact assembly in generally opposing parallel relation to the lower contact assembly, the upper contact assembly having a second contacting platen, the second contacting platen having a second contact surface spaced from the first contact surface of the lower contact assembly for abrading the second surface of the workpiece, said second contact surface being capable of fully contacting said second surface of the workpiece;means coupled to the lower and upper contact assemblies for reciprocating each of the lower contact assembly and upper contact assembly in opposing directions along a principal axis perpendicular to the work path andmeans for adjusting the space between the first contact surface of the lower contact assembly and the second contact surface of the upper contact assembly, said adjusting means comprising a plurality of micrometers mounted on one of the lower contact assembly and the upper contact assembly.