US625245A - Mounting for lenses of frameless eyeglasses or - Google Patents

Description

Patented May I6, I899.

J. CUBRIN.

MOUNTING FDR LENSES 0F FBAMELESS EYEGLASSES 0R SPEGTAGLES.

(Application filed Feb. 24, 1898.)

(No Model.)

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JOHN OURRIN, OF PROVIDENCE, RHODE ISLAND.

MOUNTING FOR LENSES OF FRAMELESS EYEGLASSES OR SPECTACLES.

SPECIFICATION forming part of Letters Patent No. 625,245, dated May 16, 1899. Application filed February 24, 1898. Serial No. 671,491. (No model.)

To aZZ whom it may concern:

Be it known that 1, JOHN OURRIN, a citizen of'the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented a new and useful Mounting for Lenses of Framel'ess Eyeglasses or Spectacles, of which the following is a specification.

My invention relates to improvements in the mounting for the lenses of frameless eyeglasses and spectacles; and the object that I have in view is to provide an improved construction of mounting in which the lens is positively and frictionally gripped and held on both faces adjacent to the edge to which the mounting is applied.

My improvement is designed to afiord a mounting practically of two pieces, which may be quickly and readily applied to difierent thicknesses of lenses, thus enabling the optician to carry a stock of mountings of one size adapted to fit universally to difierent thicknesses and sizes of lenses, and such mounting also possesses the necessary elements of strength and durability to reinforce the lens at the point where the mounting is applied instead of forming aline of weakness at the attachment of the lens to the mounting.

One of the peculiar features connected with the mounting of my invention is the positive connection of a clamping plate or jaw at two points to the mounting, one point of connection being afforded by a clamping screw which engages with the outer ends of two plates or jaws and which also passes through an aperture in the lens, and the other point of attachment is afforded by a stem which serves to adjustably and permanently fasten the separable clamping plate or jaw to the mounting at a point inside the edge of the lens, whereby in the event of disengagement of the clamping-screw from the two jaws or plates the stem fastens the separable jaw or plate to the mounting. This construction not only increases the strength and durability of the mounting for the secure fastening of the lens in place, but it also prevents the detachment and loss of the separate clamping jaw or plate from the mounting, so that the optieian is not compelled to find the separate plate or to furnish anew plate and clampingscrew in fitting the mounting to the lens.

As the preferred means for attaching the separate clamping plate or jaw to the mounting I employ a screw-threaded stem which is fast with the outer end of the separate plate or jaw and which stem is adapted to be screwed into a threaded aperture which is pro vided in the mounting at a point Within the integral plate thereof, and this threaded stem provides for accuracy and nicety in the ad-- justment of the clamping jaw or plate rela= tively to the integral jaw or plate for the purpose of accurately adjusting the two jaws or plates to lenses of different thicknesses, thus dispensing with the necessity of carrying different-sized mountings in stock in order to fit lenses of difierent thicknesses.

lVith these ends in view the invention consists in the novel construction and arrangement of parts, which will be hereinafter described and claimed.

To enable others to understand the inven tion, Ihave illustrated the same in the accompanying drawin gs,formin g a part of this specification, and in which-- i Figure 1 is a perspective'view of my improved mounting applied to a lens. Fig. 2 is an edge view looking at the mounting and lens shown by Fig. 1. Fig. 3 is a sectional elevation, on an enlarged scale, through the mounting and a fragment of the lens. Fig. 4 is an enlarged perspective view of the mount"- ing detached from the lens and with its parts separated. Fig. 5 is a longitudinal section through a modified construction of the mounting and a fragment of the lens, and Fig. 6 is a detail perspective view of the mounting represented by Fig. 5.

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

My improved mounting is designated in its entirety by the numeral 1 in the drawings, and it is applied, as will hereinafter appear, to an ordinary lens 2, which lens is provided with the usual aperture 3 near one edge thereof to receive the clamping-screw, by which the mounting is positively attached to the lens.

My improved mounting is made in a single piece with an elongated edge bearing 4 and a lateral integral clamping-plate 5. The edge bearing 4 projects from opposite sides of the axis of the holes or apertures 3 and Ginthe lens 2 and the clamping-plate of the mounting, respectively.

8 designates another clamping-plate which forms a part of my improved mounting or fitting, which is made separate from the clamping-plate 5 and is adapted to be connected rigidly and securely to the mounting or fitting, so as to form a fixed part thereof. The separate clampingplate 8 preferably conformsin size and shape to the integral clamping-plate 5, and said separate clamping-plate is applied to one face of the lens, while the integral clamping-plate is fitted to the opposite face of the lens when the mounting is adjusted to present its edge bearing& in contact with the edge of the lens. The two clamping-plates are thus applied to opposite sides of the lens to be coincident or liein the same plane with each other, and said separate clamping-plate 8 is secured rigidly and firmly at two points to the mounting or fitting, whereby the clamping-plates grip the lens frictionally and are positively connected thereto by a screw 9. The free or outer end of the separate clamping-plate 8 is enlarged somewhat to correspond to the integral plate 5, and through such enlarged part of said plate 8 is provided a transverse aperture 8, which is coincident with the apertures 3 and 6 in the lens and the plate 5, respectively. This arrangement ofthe plates with relation to the lens provides for the ready passage through such coincident apertures of the clamping-screw 9. The shank of said screw is screwed into the tapped hole (3 of the integral plate 5, while the enlarged head 10 of the screw bears against the separate clamping-plate 8, the orifice or aperture in said plate 8 being slightlycountersunk to receive said enlarged head 10 of the screw. The clamping-plate 8 is thus attached in a positive man ner and at one end to the lens and the integral plate 5, and to firmly and securely 'hold the separate clamping-plate on a mounting I provide said plate 8 with a stem 11. In Figs. 1 to 4, inclusive, of the drawings this stem 11 is shown as being exteriorly threaded to screw into a tappedor threaded hole 7 in the shank of the mounting. This construction is advantageous in that the threaded stem of the plate 8 may be screwed into the mounting or fitting to adjnstably attach theplate 8 and enable it to be adjusted more orless with relation to the plate 5, whereby the plate 8 may be applied to lenses of different thicknesses.

plate 5, and the two plates are thus arranged to have intimate facial contact with the lens and to frictionally and positively grip the lens. in the mounting. After the mounting has been properly applied to the lens the ends of the threaded stem 11 and the clamping-screw 9 may be cut or filed off to lie practically flush with the face of the plate 5.

In the modified construction of my mounting illustrated by Figs. 5 and 6 Iemploy the separate clamping-plate'with an integral stem 12, which is smooth exteriorly and is passed through the aperture 7 in the mounting, the extremity of said stem 12 being out OE and headed down or riveted, as at 13, upon one side or face of the mounting.

From the foregoing description, taken'in connection with the drawings, it will be noted that the separate clamping plate or jawof my mounting is provided at one end with a threaded stem, which is fastened securely to the mounting at a point inside of that part of the mounting which bears against the edge of the lens. This clamping-plate is secured firmly at two points, one of which points of attachment is afforded by the stem on a separate plate or jaw and the other point of attachment by the clamping-screw, which passes through the lens-opening and is secured to the integral-plate or jaw 5. to make the two plates grip opposite faces of the lens.

It is well known to Opticians that lenses vary in thickness from one millimeter to five or more millimeters, and this variation in the thickness of lenses has heretofore made it necessary for Opticians to'carry a number of difierent-sized mountings in stock inorder that lenses of different thicknesses may too be advantageously mounted in eyeglass and spectacle frames. My improved mounting has its members or parts adapted for ad justment to universally fit lenses of different thicknesses, and in addition to filling this want in the trade the plate or jaw, which is made separate from the mounting, is designed to be connected perma'nently thereto. This permanent and adjustable connection of the separate plate or jaw to the mounting independently of the connection afiorded by the clamping-screw, which is adapted to grip the lens, is a very advantageous and important feature in a universally-adjustable mounting, for the reason that the separate clamping plateor jaw will not become detached from the mounting in the event of the clamping-screw becoming detached and lost. The

optician is not required to furnish another plate or jaw in refitting the lens to the eye glass-frame or spectacle-frame, and the several parts of the mounting remain connected and intact, even in event of the loss of the clamping-screw, thus facilitating the replacement of the lens in the frame.

While I have shown my mounting or fitting as adapted for the connection of temples to the lens, it will be understood that the mounting may be constructed for the attachment of the nose -pieces and bridge-spring employed in rimless spectacles and eyeglasses.

It is evident that changes in the form and proportion of parts maybe 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- In an eyeglass mounting adapted to lenses of difierent thicknesses, a mounting having an integral clamping-plate provided with a screw-aperture at its outer end, a separate clamping-plate provided at its outer end with a screw-aperture which registers with the corresponding aperture of the firstnamed plate, a stem uniting the inner end of the separate clamping-plate permanently to the mounting at a point outside of the integral clamping-plate and adapted to connect the separate clamping-plate to said mounting against accidental separation of the two parts, and a clamping-screw fitting the screw-apertures of the two plates and drawing said plates into gripping engagement with an interposed lens, substantially as described.

screw fitting the screw-apertures of the twoplates and drawing the same into gripping engagement with an interposed lens, for the purpose described, substantially as set forth.

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

JOHN. OURRIN.

Witnesses:

CHAs. L. PLACE, M. W. MORTON.

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