Spring hinge for spectacles

Details Spring hinge for spectacles Spring hinge for spectacles

1979-06-08

1981-02-10

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

2426, G02C 514

Patent

active

042498040

ABSTRACT:
Spectacles have a stay bar pointing rearwardly from the edge of the frame and an extension spectacle arm. A hinge connects the spectacle arm and the stay bar on the inside, so that the front faces of the stay bar and the spectacle arm are spaced apart in the open position of the spectacle arm. A leaf spring extends on both sides of the front faces, spaced from the hinge swivel. It is rigidly connected to one outer surface of the spectacle arm or stay bar at one end region. The other end region of the leaf spring is adapted to touch the other outer surface of the spectacle arm or stay bar in the swivel position of the spectacle arm corresponding to its desired open or stop position.

REFERENCES:
patent: 1687954 (1928-10-01), Stevens
patent: 3572914 (1971-03-01), Piola
patent: 3713731 (1973-01-01), Gardner
patent: 4076394 (1978-02-01), Nakamura
patent: 4178081 (1979-12-01), Metcalfe
Wilkin, Acanthoma Fissuratum Cutis, J. Dermatol. Surg. Oncol., 3:5, Sep./Oct. 1977, pp. 531,532.
Carcenomatose van de Herseuvliezen, Hengefeld et al., p. 1875, Ned T. Geneesk 122, nr. 48, 1978.
Oorspronkelijke Stukken, same as above 1873.
Contact Dermatitis to Butyl Acrylate in Spectacle Frames.

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