An apparatus for press bending glass sheets carried on a mold, the apparatus including a die having a lower surface shape to mold a glass sheet positioned thereunder to a desired curved shape, a first counterbalance assembly connected to the die for providing the die with a selected...http://www.google.ca/patents/US5695537?utm_source=gb-gplus-sharePatent US5695537 - Apparatus for and method of bending glass sheets
