Glaze Breaker

Author:  John R. Arthur
Source:  US Patent 2,549,043
Doc ID:  1948012
Year of Publication:  1948
Abstract:  
This invention relates to glaze breakers. A glaze breaker is used for removing the glazed surface from cylinder walls caused by the continued rubbing of piston rings thereover. When old rings are removed and new ones installed, the presence of a glazed surface must be removed.The surface is thus roughened, only slightly, and then the new rings form a seal with the roughened surface. Such a device is also used for smoothing out, to a degree, surfaces of cylinder walls after they are rebored, the reboring operation leaving surfaces too rough for proper seating by piston rings.