| 摘要 |
<p>A glass scoring head which compensates for variation in the flatness of the glass to provide a score of uniform depth as it traverses the glass has an outer body adapted to be mounted in four possible positions to a bridge or the like to score glass in four different directions. This support body defines an air cylinder with an elongated annular piston means movably mounted therein. A pair of pressure rollers are journalled on the lower end of the piston means to bear on the glass with a force proportional to the air pressure in this cylinder. An elongated support tube is slidably mounted inside the annular piston means, and a second air cylinder urges the tube downwardly to supplement a spring acting between the second air cylinder piston and the tube. The glass scoring wheel is mounted in the lower end of the elongated tube, and threaded stop nuts are provided on the annular piston and on the support tube to adjust the down limit position of these pressure rollers, and the differential spacing between these rollers and the scoring wheel.</p> |
