US616904A - Mounting for rimless eyeglasses or - Google Patents

Description

No; 6l6,904.

Patented Ian. '3, l 8 99-.'

J. cunnm. MOUNTING FOR RIMLESS EYEGLASSES 0R SPECTAGLES.

(Application filed Feb. 24, 1898.)

(No Model.)

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NlTE-D STATES PATE T OFFICE.-

JOHN CURB-IN, OF PROVIDENCE, RHODE ISLAND.

MOUNTING FOR RIMLESS EYEGLASSES OR SP-ECTACLES.

SPECIFICATION forming part of Letters Patent NO. 616,904, dated January 3, 1899-.

Application filed February 24, 1898. Serial No. 671,492. (No model.)

To all whom it may concern:

Be itv known that 1, JOHN CURRIN, acitizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and usef ul Mounting for Rimless Eyeglasses or Speetacles, of which the following is a specification.

This invention relates to improvements in a lens-mounting for rimless eyeglasses or spectacles; and the primary object that Ihave in view is to provide a mounting which may be employed universally on lenses of different. thicknesses and curvature and be attached thereto in such a firm rigid manner as to avoid the parts working loose, whereby special fittings for different kinds of lenses are dispensed with and an optician is enabled to reduce the stock of fittings required to be carried and is saved the time and labor of selecting the mounting to fit a particular lens.

A further object is to provide an improved mounting which requires a single screw for the attachment of the lens, and which mounting is constructed to embrace the lens outside of the line of clamping of the mounting proper and the screw on said lens, whereby the strength of the joint is promoted and the strain of the lens of the mounting or screw is relieved to a considerable extent.

WVith these ends in view my invention consists of the mounting arranged to embrace the edge of the lens,having an extended clamping-plate, which fits against one face of the lens,and clamp-ears disposed on opposite sides of the clamping-plate and bent to engage with the face of 'the lens, and the single screw with an enlarged head,whi'ch bears against one face of the lens and has its threaded shank screwed into a tapped hole in the clamping-plate. I I have illustrated the preferred embodiment of my invention in the accompanying drawings, forming a part of this specification, and in which Figure 1 is an elevation of a lens-mountin g with a lens applied thereto constructed in accordance with my invention. Fig. 2 is an enlarged sectional View on the plane indicated by the dotted line 2 2 of Fig. 1. Fig. 3 is'an enlarged detail perspective View of the mount ing detached from the lens. Fig. 4 is a perspective viewillustrating a modified form of mounting clamped to a lens. Fig. 5 is an enlarged detail perspective view of the mounting illustrated by Fig. 4.

Like numerals of reference denote like and corresponding parts in each of the several fig ures of the drawings.

As is usual in the art to which this inven-' tion relates, I employa lens 1 which has a transverse hole or aperture 2 drilled through the same near one edge thereof.

My improved mounting is indicated in its entirety by the numeral 3 in each of the several figures of the drawings. The mounting is provided with an integral clamping-plate 4, adapted to be applied-against one face of a lens, and one important feature of my invention consists in further providing the mounting with clamping-ears 6, which are arranged on the mounting out of line with the clamping-plate 4 and are adapted to be bent laterally to embrace one or both faces of the lens outside of the line of action of said plate .4 and the clamping-screw 7.

In the preferred embodiment of my invention illustrated by Figs. 1 to 3, inclusive, the ears 6 are formed on the mounting on opposite sides of the clamping-plate 4 and are arranged to be bent upon the lens to clamp against the face thereof opposite to the lensface against which the clamping-plate 4 is adapted to bear, thus disposing the clampingplate and the ears to bear against opposite faces of the lens. The clamping-ears 6 are made or struck up as integral parts of the mounting 3, and said ears are of sufficient length to adapt the mounting to fit lenses of any desired thickness.

In my mounting for lenses of eyeglasses or spectacles I employ a single screw 7,which is provided at one end with an enlarged head, thus dispensing with the ears or Washers of other devices to coact with the screw and assist in clamping the lens between the screw and the mounting.

In fitting a lens to my mounting the clamping-plate 4 is bent at such an angle as to bear firmly against one face of the lens, and the lens and mounting are so assembled in relation to each other that the edge of the lens abuts or bears against the mounting, while the aperture 2 of the lens coincides or registers with the tapped hole 5 provided in the clamping-plate 4. The screw 7 is now passed through the aperture 2 of the lens and said screw is rotated to cause its threads to engage wit-l1 the threads of the hole 5 in the clamping-plate 4. This adjustment of the screw is continued until its enlarged head 8 bears firmly against the face of the lens opposite to the clamping-plate 4, and the final step of connecting the parts consists in bending the ears 6 over upon the face of the lens opposite to that face against which bears the clamping-plate 4:. It is of course evident that the ears and the end of the clamping-screw 7 should be cut off at the proper points to enable the parts to occupy compact relation to the lens and mounting.

In the embodiment of my invention illustrated by Figs. 4 and 5 of the drawings I provide the mounting with two sets of cars which are out of line with the clamping-plate and the screw, one set of cars 6 being arranged to bear against one face of the lens, while the other set of cars 9 are adapted to bear against the opposite face of the lens on the same side as the clamping-plate 4;.

I attach special importance to the employment of the ears formed as integral parts of the mounting and positioned thereon out of line with the clamping-plate and the screw. These ears perform a useful function in that they serve to confine or grip the lens at points adjacent to the mounting, and they confine the edge of the lens at points close to the mounting, thus relieving the joints between the mounting and lens of undue strain and contributing to the strength and security of the connection between the lens and eyeglass or spectacles.

In the accompanying drawings I have represented the mounting as adapted for the connection of the temple-pieces of spectacles; but it will be understood that my improved mounting may be used in connecting the bridge of spectacles or the nose-pieces and tension-spring of eyeglasses.

It is thought that the operation and advantages of my invention will be readily apparent to those skilled in the art from the foregoing description, taken in connection with the drawings.

It is evident that changes in the form and proportion of parts may be made by a skilled mechanic without departing from the spirit or sacrificing the advantages of the invention.

Having thus described the invention, what I claim is-- l. The combination of an edge bearing plate, a lens fitted at its inner edge against said bearing-plate, a clamping-plate rigid with the bearing-plate and projecting from one edge of the latter to bear against one face of the lens, clamping-ears arranged on the opposite edge of the said bearing-plate from the clampingplate, disposed in planes on opposite sides of the clamping-plate and bearing against one face of the lens, and a single headed screw threaded into the bearing-plate and with its head resting against the same face of the lens as the clamping-ears, substantially as described.

2. As anew article of manufacture,a mounting for rimless spectacles and eyeglasses, co mprising an edge-bearing plate, ears projecting from one edge of said bearing-plate and bendable to conform to the contour of one face of the lens, a clamping-plate projecting from the opposite side of the bearing-plate in a plane between said ears, and a single screw having an enlarged head and a threaded shank which is adapted to be screwed into the clampingplate, whereby the ears and head of the screw are adapted to bear against one face of the lens and the clamping-plate to bear against the opposite face of the lens, substantially as described.

3. A mounting for rimless spectacles and eyeglasses comprising an edge-bearing plate, a lens two series of bendable ears projecting from the respective edges of said bearing plate and arranged in pairs for engagement with opposite faces of said lens, a clampingplate projecting from one edge of the bearingplate in a plane between the ears on said edge to bear against one face of the lens and having a threaded socket, and a single screw with its head bearing directly on one face of the lens and its shank screwed into the socket of the clampingplate, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

JOHN CURRIN.

Vitnesses:

M. W. MoR'roN, CHAS. L. PLACE.

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