Method of manufacturing a metal frame for spectacles and frame manufactured by that method
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United States of America Patent
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Apr 25, 2017
Grant Date -
Jun 2, 2016
app pub date -
Jun 27, 2014
filing date -
Jul 8, 2013
priority date (Note) -
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Abstract
A method of manufacturing a metal frame for spectacles with a front frame, a pair of lens-carrying eyepieces of metal wire and a central bridge for support on the nose, is described, the bridge being obtained in a single piece, by bending a wire of metal material, and having a pair of corresponding lengths of wire which are capable of being attached to corresponding lens-carrying eyepieces, a recess being provided by milling on each of the lengths, each recess having at least a partial interference fit with a respective surface portion of the metal wire of the corresponding lens-carrying eyepieces, each of the lengths being welded to the corresponding portion of lens-carrying eyepieces at the location of the respective recess to attach each lens-carrying eyepiece to the central bridge.
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