US1957721A - Ophthalmic mounting - Google Patents

Description

May 8, 1934. J N. NELSON 1,957,721

OPHTHALMI G MOUNTING Filed Oct. 16, 1929 IN V E R. Lfa//z ,/1 .14 0/2.

BY fl w A TTORNEYS.

i 'atented May 8, 1934 SITES FAT ENT FEQE DEE-ETHALMIC -MOUNTING John N. Nelson, l rovidence, R. 1., assignor to (lptical Corporation,

Providence,

2 Ciaims.

"on relates to an improved construction of itnalimc mounting and has for its object to provide a bridge me iber connecting the lens-engaging members, the bridge'having rearu'ardly extending side arms of a substantial length adapted to be bent laterally for adjusti he pupillary distance betwee the lenses. A further object of the invention is to also ati a pair of nose-guards to the lens-engaging members, each thru a rearwardly-extending bendable arm on ercby they may be adjusted independently or" the bridge adjustment to so eng s to properly support the mounting on the face of the wearer.

. invention further consists positioning the nose-guard so that a portion of the guard plates extend into proximity of the return bend in the r dge arms to partially hide the same present the appearance of being a part e other objects in View, the insists of certain novel features of construction, will more fully described, particulafy pointed out in the appended claims.

In the accompanying drawing: Figure l is a 2. out view showing one form -almic mounting.

Figure 2 is a side elevation partly in section showing one of the eyewires with a portion of the bridge connected thereto.

Figure 2- is the 5 me as Figure 2 with addition -gua1d also connected with the eyeperspective View showing the the nose-guard connected to the eye- Figure 8 is a detail of the nose-guard having a rearwardiy bendable arm to be attached to the ion Figure 7 is a to" v showing the side arms of bridge of "X length connected to the eyewires or hers.

Figure 8 is the same as Figure 7 and showing the side arms having been bent outwardly and to extend tie pupillary distance between the lenses.

Figure s is a modification illustrating the bridge and the nose-guard as connected to a lens engaging member in the form of a lens clamp instead of an eyewire.

It is found in practice that where the old style of ophthalmic mounting having temples utilizes a bridge to support the frame on the nose of the wearer, that many sizes have to be carried in stock for each different design of mounting, in order-to fit the widely varying shapes of faces of the different wearers and where these metal frames are made of precious metals a considerable investment is required to carry a full line of these mountings, and order to obviate the necessity of carrying so large a stock, I have constructed the mounting in-sucha way that it may be r adily adjusted over quite wide range and so reduce to a great extent the number of mountings required to be carried in stock, and to accomplish this I have formed a bridge memher with a return bend at its ends thus providing '70 side arms of a substantial length adapted to be bent laterally or toward and from each other to adjust the pupillary distance of the mounting. Also, I have mounted a guard member independent of the bridge member having an arm '75 connected preferably to the lens-engaging member independent of the bridge member, whereby this guard member may be adjusted independently of the adjustment of the bridge to properly support the mounting on the nose of the too wearer; and the following is a detailed description of the present embodiment of my invention and showing one means by which these advantageous results may be accomplished:

With reference to the drawing 10 designates 285 the lenses and 11 one form of lens-engaging memher which in this instance is an eyewire; the eyewires are connected together by a bridge member 12. This bridge member is herein shown as being positioned on an incline relative to the plane of the eyewires, the forward portion of the bridge being substantially flush with the forward edges of the eyewires and the bridge extending rearwardly and downwardly and its ends provided with a return bend as at 13, forming side arms 14 of substantial length which are attached by solder or otherwise to the lensengaging members 11.

By this construction these side arms as best illustrated in Figures '7 and 8 may be bent laterbendable arm 16 which extends forwardly and is connected by solder or other suitable means to the eyewire.

The upper portion 17 of the plate of each guard is arranged to extend into close proximity to the return bend 13 of the bridge so as to partially hide the bend and present the appearance of being connected thereto, and in some cases the guard may be connected to the bridge.

By this construction of forming the nose-guard separate and independent of the bridge, it will be seen that they may be adjusted independently of the bridge adjustment to engage the nose of the wearer and support the mounting in the proper position on his face, that is, in other Words, the bridge serves to permit a wide adjustment of the pupillary distance between the lenses and the guards serve to support the mounting in proper position on the nose of the wearer.

By this adjustment the number of different sizes of mountings may be greatly reduced, thus materially reducing the investment of the dealer in these mountings, which is of considerable importance particularly where the mountings are of precious metals and also by this independent adjustment it permits more accurate fitting of the mountings to the faces of the different wearers. v

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In an ophthalmic mounting, two lens members, a relatively rigid deformable wire bridge connecting the lens members and having the central portion thereof concavo-convex along its length, the portions of the wire on either side of the crest being rounded and extending rearwardly and downwardly and folded upon themselves and extending forwardly with each of the folded portions in a plane which is substantially vertical and at a right angle to the plane of the lenses, and with the forwardly-extending portion spaced from the rearwardly extending portion and bendable relatively thereto, the ends of said f orwardlyextending portions rigidly connected to the lens members and approaching said members at substantially right angles to the plane of said lenses.

2. In an ophthalmic mounting, two lens members, a relatively rigid deformable wire bridge connecting the lens members and having the central portion thereof concavo-convex along its length, the portions of the wire on either side of the crest being rounded and extending rearwardly and downwardly and folded upon themselves and then extending forwardly with each of the folded portions in a plane which is substantially vertical and at a right angle to the plane of the lenses and with the forwardly-extending portion spaced from the rearwardly-extending portion and bendable relatively thereto, the ends of said forwardlyextending portions rigidly connected to the lens members and approaching said members at substantially right angles to the plane of said lenses, and an independent nose guard plate having a rearwardly-extending arm bent in an 3 curve and doubled back upon said plate.

JOHN N. NELSON.

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