I bought two discs of glass, of 6 1/2 inches diameter, and began to grind them to a spherical curve 12 feet radius.
"Men of Invention and Industry" by Samuel Smiles
Haslam reports the history of a female who mutilated herself by grinding glass between her teeth.
"Anomalies and Curiosities of Medicine" by George M. Gould
The first process to be performed by the optician is to grind the glass into the shape of a lens with perfectly spherical surfaces.
"Side-lights on Astronomy and Kindred Fields of Popular Science" by Simon Newcomb
It is there that the dreadful shells have entered, breaking, grinding furniture, pictures, glasses, and even human beings.
"Paris under the Commune" by John Leighton
George Clark, the son, told his father that the books said that the grinding of such glasses was very difficult.
"Stories of American Life and Adventure" by Edward Eggleston
The plan of grinding the glass was suggested by me.
"The Monctons: A Novel, Volume I" by Susanna Moodie
The method of grading emery will be described in the chapter on glass-grinding.
"On Laboratory Arts" by Richard Threlfall
Glass is awful to grind in.
"The Best Short Stories of 1919" by Various
The door slid into its wall pocket with a sound of grinding glass.
"Slaves of Mercury" by Nat Schachner
In the Exhibition of 1851 he exhibited an ingenious machine for grinding and polishing plate-glass.
"The Romance of Industry and Invention"
Dynomax’s Dynogrind spindle series is designed for robotic grinding of abrasive materials such as glass, ceramic, composite and forged materials for the aerospace, automotive, renewable energy and robotics industries.
With a small drill attachment and a tub of cerium oxide compound (and for deep scratches , some sandpaper), it is possible to grind scratches out of a screen, the same way you would buff scratches out of auto glass.