Raymond Burr Tribune"; the "Los Angeles Times" called Burr's questions "intelligent and elicited some interesting replies". Burr had a reputation in Hollywood as a thoughtful, generous man years before much of his more-visible philanthropic work. In 1960, Ray Collins, who portrayed Lt. Arthur Tragg on the original "Perry Mason" series, and who was by that time often ill and unable to remember all the lines he was supposed to speak, stated, "There is nothing but kindness from our star, Ray Burr. Part of his life is dedicated to us, and that's no bull. If there's anything the matter with any of us,
Burr (edge) for a significant portion of manufacturing costs. In the printmaking technique of drypoint, burr, which gives a rich fuzzy quality to the engraved line, is highly desirable—the great problem with the drypoint medium is that the burr rapidly diminishes after as few as ten impressions are printed. There are three types of burrs that can be formed from machining operations: "Poisson burr", "rollover burr", and "breakout burr". The rollover burr is the most common. Burrs may be classified by the physical manner of formation. Plastic deformation of material includes lateral flow (Poisson burr), bending (rollover burr), and tearing of material