Spectacle frame

Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Bridges

Patent

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Details

351113, 351114, G02C 516, G02C 506

Patent

active

043773281

ABSTRACT:
This invention concerns a frame for spectacles comprising one or more flexible elements fitted between parts of the front and of the sides, in order to make the frame itself highly adaptable to the anatomy of the face; said flexible elements comprise a helical spring and two pins, one end of which engages with said spring whereas the opposite end is secured to said parts of the front and of the sides; the threaded ends of said pins are equal in diameter to the internal diameter of said spring and have a pitch equal to the pitch of the coils of said spring, while their combined length is less than the length of said spring.

REFERENCES:
patent: 808412 (1905-12-01), Ward
patent: 1001734 (1911-08-01), Day
patent: 1082480 (1913-12-01), Cutler
patent: 1129950 (1915-03-01), Brennecke
patent: 1180701 (1916-04-01), Day
patent: 1210038 (1916-12-01), Brennecke
patent: 1663402 (1925-10-01), Engel
patent: 3813152 (1974-05-01), Hampel

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