USRE2908E - Island - Google Patents

Description

BEST AVAILABLE COPY j @JTW/WW;

iff@ im BEST AVAILABLE COPY @einen gisten getint @fitte CHARLES PARKER, OF MERIDENOONNEGTICUT, ASSIGNEE OF GEORGE N. GUMMINGS, OF PROVIDENCE, RHODE ISLAND.

Letters Patent No. 67,176, dated July 30, 1867; reissue No. 2,908, dated March 31, 1868.

`IMPROVEMENT IN EYE-GLASSES.

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To ALL WHoM IT MAY ooNonnN:

Be it known.that GEORGE N. GUMMNGS, of Providence, in the county of Providence, and State of Rhode Islandinvented a new Improvement in Eye-Glasses; and I do hereby declare the following, when taken in connection with the accompanying drawing, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawing constitutes part of this specicatin, and represents a perspective view of the glasses open. l Y I l This inventionrelatespto an improvement in that classof eye-glasses which are held upon the nose by means of a spring, the said spring being the connection between the two glasses, the object being to relieve the nose from the strong pressure occasioned by the usualshort connection of the spring between the two glasses,

as also to spread the glasses, so that the centre of each glass will come into position nearer the centre of the eye; and my invention consists,V first, in securing each end of the spring to its respective bow, by formingthe joint in each bow at a point below the bearing-point upon the noso,' and inserting the end of the spring between the two parts of each of the said joints, then securing the joints by a screw, or its equivalenpassing through the two parts of the joints and spring, thus securely clamping the spring to the bow, and so that, in case of injury, it maybe easily removed and replaced; second, inthe arrangement, upon the respective bows, at a point above theY connection ofthe spring to the bows, of a guide, wholly or partially surrounding the said spring, but so as to allow the spring perfect freedom in the. said guide.

To enable others to construct my improvement, I will proceed to describe the same as illustrated in the accompanyingdrawing. v

A'A are the respective bows to the two glasses; B, the. spring, which is a continuous piece of steel from the point of connection, D, on one how over to the saure point on the other bow. Each of the said bows is united at the point D, and so that the two ends may be separable at that point, and so that by uniting the two ends at that point around the glass, the glass will be held into its bow'in the usual manner. At the point D, a suicient space is left between. the two ears,A by which the bow is connected, to receive the end of the spring B, and through the ears and spring a screw, or equivalent,is placed, which' draws the two ears hard down upon thespring, and so aslto securely hold its end. Upon each of the two bows, at the lpoint E', above the point D,

I form or attach gnides,zas seen at E,wholly or partially surrounding the spring, but so as to leave the spring perfectly free within the said guides. This leaves the spring free from one end to the other, and thus the entire elasticity cf the spring is secured, and s light that the glasses may be worn without the slightest discomfort to the' wearer. j

By this construction, the elasticity of the entire length'of the spring renders the spring less liable to break than. whrtth'o spring' is rigidly connected to the bows at the point E, as in glasses of common-construction. Thus,wfhi log giving to the wearer greater comfort, durability is added to the glasses.

U i he spring, at or near each end, I x pieces of horn, shell, hard rubber, or other suitable material, cover-the' inner surface of the sprngat its bearings upon the nose. The two glasses'ars closed,` the one upon the other, and applied to the nose in the usual manner;

iand for thep'nrposespeciiied.: .Y

` Witnessestf Joan W. Minas,- j r Amm Minus.

Having thusl fully described this invention, what I claim as the invention of GEDB'GE N. CUHMINGB, and desire to secure by Letters Patent, is'

1. The continuous spring B, "combined with the two glasses A A, when attached and secured to each of the bows, at or near the point D, in themannersubstantially as hereinset forth; l

i l 2` The arrang'sment'of .the guides E E upon each of the bows, and so as' to whollyor partially surround tiranni-ing,i at a pointabove thepoint D,-.and so as to'leave the, spring free in the said guides, substantially. as

CHAS. PARKER,` o Assignee of" George N, Uummnga

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