Sunglasses pivotally mounted on browbar of spectacle frame

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – With antiglare or shading

Patent

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Details

351 57, G02C 708

Patent

active

045346275

ABSTRACT:
Clip-on sunglasses for spectacles having frames with a browbar non-circular in cross-section and including a pair of light-weight colored transparent plates interconnected by a bridge plate having a generally C-shaped clip formed integrally therewith. The browbar, preferably square in cross-sectional shape, and the inner surface of the clip are correspondingly shaped. The clip provides means for detachably mounting the sunglasses on the spectacle frames as well as means for pivoting the sunglasses when mounted on the spectacle frames. The square shape of the browbar effectively provides a lock for the pivot in the two different positions.

REFERENCES:
patent: 3171134 (1965-03-01), Kennedy
patent: 3413057 (1968-11-01), Carmichael

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