Apparatus for scoring glass sheets

Apparatus for scoring glass sheets comprising:

• a rotary drive roll having a tire of resilient material for drivingly engaging the underside of and supporting a sheet of glass to be cut;
• a frame and bearing means for supporting a horizontal drive shaft on which said drive roll is mounted for turning therewith, said frame including an upstanding leg at an end of said shaft opposite said drive roll and an arm extending outwardly of said leg spaced parallel to and above said shaft for supporting scoring means above said drive roll;
• scoring means above said drive roll adjustable to move toward and away from said tire for scoring engagement with the upper surface of said sheet of glass when said sheet is driven to move therebeneath by rotation of said drive roll;
• and
• means for adjusting the position of said scoring means relative to said drive roll and maintaining a selected position after adjustment while said sheet of glass is being scored,
• said scoring means including a rotating scoring wheel mounted adjacent a lower end of a mandrel of said adjusting means, said mandrel supported for vertical movement on said arm adjacent an outer end,
• said mandrel of said adjusting means being mounted for vertical movement on said arm, said adjusting means including key means for preventing rotation of said mandrel relative to said arm and a hand wheel threadedly engaged with an upper end of said mandrel for moving said mandrel toward or away from said drive roll upon rotation of said hand wheel.