US1329885A - Eyeglasses - Google Patents

Description

A; V. BROWN.

EYEGLASSES.

APPLICATION FILED NOV. 2. Iss8.

1 ,329, 885 Patented Feb. 3, 1920.

ATTORNEY UNITED STATES PATENT OFFICE.

EYEGLASSES.

Specification of Letters Patent.

Patented Feb. 3, 1920.

Application filed November 2, 1918. Serial No. 260,804.

To all whom it may concern.-

Be it known that I, ANDREW V. BROWN, a citizen of the United States, and a resident of Philadelphia, in the county of Philadcl phia and State of Pennsylvania, have invented an Improvement in Eyeglasses, of which the following is a specification.

In the manufacture of eyeglasses and spectacles manufacturers, and Opticians have suffered considerable loss and expense due to the fact that in fitting the straps to the lenses the latter are subjected to certain stresses or strains or blows as a result of which they are broken and must be replaced.

It is the object of my invention to pro vide means to avoid and eliminate 'such breakage thereby eliminating the wastage and loss resulting therefrom. In accom- PllSlllllg this object, I provide the portions of the lenses with which the strap and the screw for connecting the same to the said lens would contact with a coating of metal or equivalent material which receives and resists the strains and blows which otherwise would be received by and imposed upon the lens itself. I may also provide a thin coating of metal entirely around the peripheral edge of the lens thereby decreasing the likelihood of breakage of the lens if it should be dropped or otherwise receive a blow from which it might be broken but for the presonce of such peripheral coating. Such metallic coating preferably is formed or placed upon the lenses as suggested by means of electro-deposition, because in this way the said coating of metal is deposited slowly and gradually so that it is formed without binding action upon the glass of the lens and without subjecting the same to any stresses or strains. Although, as at present advised, the deposition of the coating of metal upon the surface and edge portions of the lens or lenses at the point or points desired electrolytically is preferred by me, it is to be understood that such coating may be formed by otherwise causing a deposition or formation or placing of the said. coating in position.

The said coating may be relatively quite thin and still be sufficient to take up the stresses and strains which are ordinarily and normally imposed upon the lenses by the straps by means of which the opposite ends of the bridges and the forward ends of the temple wires of spectacles are con nected to the said lenses.

Other objects and advantages of my in vention will be pointed out in the detailed description thereof which follows or will be apparent from such description.

In order that my invention may be more readily understood and its practical advantages more fully appreciated and comprehended, reference should be had tothe accompanying drawing in which I have illus trated a convenient form of embodiment thereof.

In the said drawing z Figure 1 is a face view of a lens provided with a coating of metal or equivalent material over which the strap may be placed to be secured to the lens;

Fig. 2 is a transverse sectional view through a portion of the lens and the said coating;

Fig. 3 is a view similar to that shown in 1, but showing the coating strip pro vided with laterally projecting portions which extend for a short distance upon opposite sides thereof in contact with the edge of the lens;

Fig. a is a view in transverse section similar to Fig. 9. but showing a. strap overlying the said coating and a screw for securing the strap to the lens; and

Fig. 5 is a face view of a lens in which the coating is shown as covering the portion of the lens over which the strap extends and also as covering thepcripheral edge of the same.

In the drawing l designates a lens and .2 a coating of metal which has been deposited by electrodeposition or otherwise placed upon the lens at a point at which a strap is to be applied for the purpose of securing a bridge, temple lug or other member or part of an eyeglass mounting to the lens. 3 designates a metal lining or bushing in the opening t of the lens. The opposite ends of the lining or bushing are provided with flanges l which contact with the opposite surfaces of the lens immediately surrounding portions of the opposite ends of the bpening 4:. The opposite ends of the coating strip 2 are connected integrally with the opposite ends of the said'lining or bushing and said strip extends along the opposite surfaces of said lens to and across the adjacent edge of the same as shown. In Fig. 3 the same coating strip 2 and flanged lining or bushing 3 within the opening 4; are shown, and in ad .means of which the strap is secured andheld v in position. It Wlll be'observed that nelther dition lateral projections 5 extending in opposite directions from the opposite edges of the strip 2 along the edge of the lens. The purpose of the lateral projections 5 is to serve as a bearing for the laterally extending shoes which usually project from the opposite edges of a strap. However breaking is not apt to be caused by contact of such shoes directly with the edge of the lens, consequently the lateral projections 5 may be omitted as inFig. 1 and the shoes of the straps permitted to contactdirectly with the edge of the lens.

S designates a strap which fits over the coating strip 2, andt designates a screw by the strap 8 nor the screw 9 contacts at any point with the lens 1. Consequently .no pressure, stresses or strains are transmitted from the strap 8 or from the screw 9 to the lens. Such pressure, stresses or strains as may result from the strap 8 or screw 5) are taken up and resisted by the coating 2 and lining or busl'ring 8. The said last two mentioned parts are integral with each other as shown.

The coating and the lining or bushing may be applied to the lens in any manner described, the only precaution to be observed is that it shallxbe applied in a manner to avoid the placing or imposing-of a pressure .or pressures upon the lens tosubject the same to stresses or strains. But forthe presenceof the coating strip 2 and thelining or bushing 3 any stressesor strains which maybe exerted by a strap or a fastening screw, especially if they be constant and continuous upon the lens, are most likely to cause a fracture or breaking thereof.

In Fig. 5 a construction is shown in which the coating'of metal is extended along or around the entire peripheral edgc'of, the lens as shown at 10. The presence of such peripheral coating will materially :decrease the breakage due. .to A dropping or otherwise striking the lenses. Such peripheral coating preferably and usually will be employed only in the case'ofwhat areknown as rim- ;less glasses .but'nray be used in cases-where the-glasses are provided with rims.

I claim:-

1.-In eyeglasses and spectacles, in combination, a lens provided with an opening adjacent its edge for the. reception of fas toning .ineans, said opening having a thin .metal lining, a thin. and relatively narrow coating strip having integral connection with and extending from the oppositeends of said lining along opposite portlonsof the surface of thesaid' lens .to and across the adjacent edge thereof, substantially as described.

2.i Ineyeglasses and spectacles, a lensprotraded with one or more openlngs for the reception of fastening means for securing a strap or straps to said lens, said opening or openings being provided with a metal lining, and a metal strip having integral connection at its opposite ends with the opposite ends of said lining, said strip extending along the surfaces of said lens and across the edge of the lens adjacent to the said opening or openings.

3. In eyeglasses and spectacles, a strip of metallic coating extending transversely of the edge of a lens and a metallic lining for the opening through the said lens through which opening the strap fasteningmeans extends, said lining and strip having connection with each other, the said strip and lining constituting a bearing for the-strap and fastening means therefor.

a. In eyeglasses and spectacles, in com bination, a lens having an opening therethrough adjacent the edge thereof, a metal lining for said opening, the opposite ends of said lining being provided with integral flanges which Contact with portions of the opposite sides of the said lens immediately surrounding theopposite ends of saidopen- ,ing, a thin metallic strip having integral connection at its opposite ends to said flanges, said strip extending across the ad jacent edge of said lens, a strap fitting over and contacting with the said strip, and a fastening device extending through the ends .of said strap and through the said lining for securing the said strap (in position upon the lens, substantially as described.

5. In eyeglasses and spectacles, in combination, a lens provided with an opening adjacent its edge forthe reception of strap fastening means and having a metal lining, a thin and narrow coating strip having -1ntegral connection with and extending from the opposite ends of said lining along opposing portions of the surfaces -of.said lens to and across the adjacent edge thereof, and a relatively thin coatingstrip extending en ti-rely around the peripheral edge of said lens.

6..In eyeglasses and spectacles, "in com- .bination, a lens ,havingan opening extending therethrough adjacent to the edge there of, a metallic lining in said opening, a rela tively thin coating strip having integral connection with the opposite ends of said lining and-extending along portions 'of the opposite surfaces of said lens to andacross the adjacent edge thereof, and 'a-coating strip extending entirely aroundthe-periphera]. edge of said 3161135 saidperipheral coating strip having integral connection withrthe first named strip.

In tcstimony that I claim .the foregoing as my invention I, have hereunto setny

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