Cutting by use of rotating axially moving tool – Machine including plural tools – Coaxial tools
Patent
1989-02-10
1990-09-11
Desmond, Eugene F.
Cutting by use of rotating axially moving tool
Machine including plural tools
Coaxial tools
408236, 408 46, 125 20, 51 80R, 51283R, B23B 3922
Patent
active
049557637
ABSTRACT:
A glass drilling machine for drilling holes in a sheet of glass in which each hole is partly drilled from one side of the sheet and is then finish drilled from the opposite side. The machine is made up of aligned first and second drilling devices which are attached near the ends of first and second pivotable arms, respectively, the first and second arms being periodically pivoted toward and away from the sheet to bring the drilling devices into and out of drilling engagement with the sheet. The first and second arms are releasably clamped to first and second spindles, respectively, which pivot about first and second axes, respectively, the first and second axes being spaced apart but close to one another and positioned remote from the drilling devices. The position of the first arm is adjustable along its longitudinal axis by releasably clamping it to an eccentric portion of the first spindle, so that a change in the circumferential position of the first spindle relative to the first arm will longitudinally reposition the first arm. The position of the second arm is adjustable along the axis of the second spindle by releasably clamping an internally threaded portion of the second arm to an externally threaded portion of the second spindle so that a change in the circumferential position of the second spindle relative to the second arm will reposition the second arm along the axis of the second spindle.
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Delventhal Kent A.
Grosjean Kenith E.
Desmond Eugene F.
Meehan Thomas A.
Schultz Robert
Toledo Automated Concepts, Inc.
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