Method and apparatus for producing eyeglass frames

Details Method and apparatus for producing eyeglass frames Method and apparatus for producing eyeglass frames

1988-01-20

1989-02-07

Watson, Robert C.

Work holders

Holder inserted within work aperture

Expandable mandrel

269 60, 269157, 269217, 269266, 269909, B23Q 314

Patent

active

048026611

ABSTRACT:
An eyeglass frame is produced from a plastic workpiece panel of elongated outer periphery having two lens-holding apertures, each aperture having a groove about its perimeter for receiving the lens of the eyeglass. The workpiece is placed upon a holder having two slidably adjustable chucks, each chuck having impingement structure which controllably engages the perimeter of the aperture. The impingement structure is driven in radially divergent directions toward the perimeter by pressure applied from balls housed within the chuck.

REFERENCES:
patent: 2623423 (1952-12-01), Horvath
patent: 3604700 (1971-09-01), Gault
patent: 3710653 (1973-01-01), Miller
patent: 3782740 (1974-01-01), Peyrot
patent: 4047709 (1977-09-01), Thyberg et al.
patent: 4078283 (1978-03-01), Choquette
patent: 4519620 (1985-05-01), Keith
patent: 4522379 (1985-06-01), Lindgren
patent: 4711406 (1987-12-01), Barstow

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