Improvements in and relating to eye-glasses / [Joseph Lewis Levy].

  • Levy, Joseph Lewis.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in and relating to eye-glasses / [Joseph Lewis Levy]. Source: Wellcome Collection.

    1/8
    N° 7371 A.D. 1893 Date of Application, 11th Apr., 1893—Accepted, 2a?c/ June, 1893 COMPLETE SPECIFICATION. Improvements in and relating* to Eye-glasses. I, Joseph Lewis Levy, of 206 Broadway, in the City and State of New T ork, United States of America Lawyer, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:— ,r> My invention relates to frames for eye glasses, and it has special reference to those structures whereby the lenses or glasses are securely supported upon the nose, and the adjustment thereof, both as regards the lenses in their relation to the eye, and the frame in relation to the structural character of the nose and face of the wearer, can be readily accomplished. 10 My invention has for its object to comprise in a single frame devices whereby the lenses may be adjusted in said frame on the line of vision, or at an angle thereto, without disturbing the integrity of the frame ; that is to say, the structure for supporting both the lenses remains fixed and immovable, as to its collective parts, while the lenses are capable of the adjustment, as before stated, without disturbing 15 the parts of the frame or changing the relation which those parts bear to the face. Another important feature of my invention consists in the capability of inde¬ pendent adjustment, in the manner before stated, of each lens irrespective of the other, without disturbing the integrity of the frame ; and another important 20 feature of my invention lies in the capability of conforming the nose guard arms to the conformation of the nose, the particular use in this regard being the bringing of the nose guards closer together by a manipulation of the nose guard arms. So far as the structure illustrated herein is concerned, additional merit is 25 obtained by its cheapness, all the parts being easy of manufacture and without unnecessary complication, and the bow spring is not bent at the ends, it being made in one straight piece, such bending requiring in its manufacture additional steps, adding to its cost. The nose guard arms extends straight out from the nose guards, and occupy a position at right angles to the lens when the lens is 30 disposed vertically, and they occupy throughout their entire length a position at right angles to the axis of the lenses, and a separate face plate, which determines the angle of the bow spring, is provided independent of the lens posts, and my construction not only enables the parts of the frame to be economically made, but the face plate, which insures the relative positions of 35 the bow and nose guard arms, has this capacity, without delegating it to the lens posts. By making the bow spring, the nose guards, and their arms stable in relation to each other, and locating the bow spring on the nose guard arms to the rear of the lenses and between them and the nose guards, the weight of the bow spring is 4r) sustained by the nose guards very close to the point where they grip the nose, and the question of preponderance of the weight thereof, and the liability of the frame moving away from the eye on account of this superposed weight is materially lessened. My invention also consists of the improvements hereinafter fully described and 45 pointed out in the claims. In the drawings— Figure 1 is a perspective view of an eyeglass frame with attached lenses* embodying the features of my invention. Figure 2, a rear elevation of the eyeglass complete ; and 50 Figure 3, a front elevation of the same. [Price 8^.]