Spectacle frames

Details Spectacle frames Spectacle frames

1980-08-28

1983-03-22

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

351113, 351114, 351121, G02C 516, G02C 514

Patent

active

043773273

ABSTRACT:
A spectacle-frame side arm is provided which is capable of lateral articulation intermediate its ends to conform to the shape of the wearer's head. The side arm comprises front and rear parts articulated together, and a longitudinal reinforcing lamina extending between the arm parts at least in their zone of articulation. In order to resist torsional stresses about the longitudinal axis of the side arm, the articulated ends of the side-arm parts are formed as interplaced tenons and mortices which extend perpendicularly to the said longitudinal axis. Preferably, the opposing surfaces of the interplaced tenons are separated from each other by a metal spacer element which has a profile similar to that of the articulated ends of the side-arm parts considered in a plane parallel to the longitudinal median plane of the side arm.

REFERENCES:
patent: 3796482 (1974-03-01), Blumenthal

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