Apparatus and method for drilling glass

A drilling machine comprising:

• a) upper and lower approximately triangularly shaped arm assemblies, said triangular shape forming an apex and a base for each arm assembly;
• b) first and second drills attached to the apex of said upper and lower arm assemblies, respectively;
• and
• c) means for pivoting said first and second arm assemblies about a common centerline, said pivoting means disposed in the base of said upper and lower arm assemblies.

A machine for applying a tool to opposing sides of a deep glass articles comprising:

• a) an upper arm forming a first triangle adapted to rotate about a first pivot means at the base of said first triangle, a first tool mounted at the apex of said first triangle;
• b) a lower arm forming a second triangle adapted to rotate about a second pivot means at the base of said second triangle, a second tool mounted at the apex of said second triangle, said second tool mounted in opposed relation to said first tool, said first and second pivot means being in parallel spaced relation;
• c) a frame adapted to rotate about said first pivot means;
• d) means for maintaining said lower arm in fixed relation to said frame and for urging said lower arm to rotate about said second pivot means away from said frame;
• and
• e) means for urging said upper arm and said frame to rotate about said first pivot means.

A method of operating on a deep workpiece with first and second opposing members, comprising the steps of:

• a) moving said second member away from said first member along an arcuate path about a first pivot point;
• b) placing said workpiece between said first and second members;
• c) moving said first member toward and onto said workpiece along an arcuate path about a second pivot point spaced a first predetermined distance from said first pivot point and simultaneously moving said second member toward said workpiece along an arcuate path about said first pivot point;
• d) stopping said arcuate motion of said second member about said first pivot point a second predetermined distance from said workpiece;
• and
• e) moving said second member toward and onto said workpiece along an arcuate path about said second pivot point.