US1587105A - Ophthalmic mounting - Google Patents

Description

June 1 1926;

w. c. EATON OPHTHALMIC MOUNTING Filed July 2.5. 1923 INVENTOR WILL/AM C. EATON A oRNEY Patented June 1, 1926.

UNITE STATES PATENT OFFHQ.

WILLIAM C. EATON, OF SOUTHBRIDGE, MASSACHUSETTS, ASSIGNOR TO AMERICAN OPTICAL COMPANY, OF SOUTI-IBRIDGE, MASSACHUSETTS, A VOLUNTARY ASSOCIA- TION OF MASSACHUSETTS.

OPHTHALMIC MOUNTING.

Application filed July 23, 1923.

This invention relates to improvements in ophthalmic mountings, and has particular reference to an improved mounting of the fingerpiece type which is retained on the face by spring actuated levers pivoted to a suitable lens connecting member or support.

The leading object of this invention is the provision of an improved mounting of this-character in which breakage and deterioration will almost be entirely obviated.

I-Ieretofore rimless eyeglasses have been in demand by the majority of users in preference to eyeglasses with rims, chiefly because of the conspicuous and ungainly appearance of the old rims having large clamping portions carried thereby and extending inwardly of the rim on both sides of the lenses and taking up a comparatively large portion thereof. Furthermore, in View of the form of joint used the rims often times became twisted from their nor mal shape, thus presenting a poor appear ance and increasing the chance of losing the lens at the same time. In addition to this, the rimless eyeglasses were not entirely satisfactory as it was difficult to properly mount the bridges and nose pieces.

An object of my invention is to overcome the objections above set forth and to provide an eyeglass having a metallic inner rim and a non-metallic outer rim composed of a. cellulose composition, such as zylonite. Lug portions are disposed rearwardly of and formed integral with the rim and the bridge so that there is absolutely no possibility of displacement of the various parts of the eyeglass.

A still further object of my invention is to provide a device of this character that is strong, durable, comparatively simple and inexpensive in construction and that is well adapted to the use for which it is desired.

Other objects and advantages of the invention will become apparent during the course of the following description.

In the drawings, wherein like numerals are employed to designate like parts throughout the same,

Figure 1 is a fragmentary rear elevation of my improved mounting.

Figure 2 is a fragmentary detail perspective of the oint used in accordance with my invention and in an open position.

Serial No. 653,222.

outer rim 12 which is composed of a preferably cellulose composition, such as zylonite. The inner rim 11 is a split rim and is provided with rearwardly disposed lugs 13 desi gnated in their entirety by the numeral 13. The lug portions 13 are provided with aligning screw-threaded openings through which a screw 14 is adapted to pass to clamp the rim about a lens. It will thus be seen that due to the V-shaped joint and the screw l l it will be absolutely impossible for the rims to move or become displaced even to the slightest degree. It is to be particularly noted that the lug portions are formed integral with the metallic rim 11 in such a manner that the connection therebetween is decidedly stronger than the ordinary form now in use.

It will be noted, as shown in Figures 2, 3 and 5, that the rim 11, and the lugs 13 are divided in a joint, but not in a straight line, the joint. being substantially V-shaped, formed by the intersection of two oblique lines, the lines of the joint descending from the outside edges of the rim and the lug to an intermediate point where they intersect. This provides a joint that will tend to keep the frame sections in alignment and free from lateral displacement when the two sections of the lug are drawn together by the screw fastening 14:. The advantage of this construction is that it provides a strong joint for the frame sections free from lateral displacement, which joint is very accessible to be opened up to allow the insertion of a lens in the rim without interfering in any way with the guard and guard lever of the mechanism for holding the frame on the nose; the joint also being on the inside is practically invisible when the mounting is in service. The joint may be opened up to insert a lens in the rim without interfering with the mechanism for holding the mounting on the nose, or the holding mechanism may be taken off and put on without interfering with the lens in the frame. It also provides a unitary construction for carry ing the mechanism for holding the mounting on the face and for separation of the rim to allow the insertion or taking out of a lens.

At 15 is indicated the bridge, which is provided with the enlarged substantially squarehaped terminal portions 10 which are formed integral with the upper portion of the lug 13. The enlarged portion 16 is disposed in a plane parallel with the longitudinal axis drawn through both lenses of the glass and is provided with an upstanding collar 17 upon which is mounted the nose piece for pivotal movement thereon. The nose pieces 18 may be of any desired construction and a form thereof is clearly illus trated in Figure 1. In the illustration as shown a sleeve carried by the nose pieces is slipped over the collar 17 and a spring 19 and screw 20 are brought into play, whereby the nose pieces 18 will be brought into engagement with the nose of the user in the manner as will be readily understood.

It is to be noted in Figure 5 of the drawings that the outer rim 12 at the point 21 is so disposed that it is absolutely in'ipossible for the screw 1a to become dislodged and lost. In other words, the head of the crew 1% will abut the end of the outer riin 21, whereby its downward motion will he restricted.

It will thus be seen that I have devised an eyeglass having attractive rims which are exceedingly substantial, which are provided with rearwardly disposed lug portions, which are formed integral with the rim and the nose piece so that there are no parts pro vided which will gradually work loose and allow the lens to become lost. In other words, the rims, lug portions and bridge are all formed of an integral structure the bridge having an enlarged portion forming a good bearing surface for the nose pieces to work upon.

It is to be understood that the form of my invention herewith shown and described is to be taken as the preferred embodiment of the same, and that various changes in the shape, size and arrangement of parts may be resorted to Without departing from the spirit of my invention or the scope of the sub-joining claims.

Having thus described my invention, what I claim as new is:

1. In a device of the character described, a split lens rim having abutting ends, said line of abutment being inclined to the sides of the rim, a lug on the eye side of the rim extending from one of the ends of the rim, the top of said lug having an inclined face making an acute angle with the line of abutment of the end of the rim, a bridge member joined to the other end of the rim above the line of abutment and having an extending lug aligned with the lug on the other end of the rim and having a face contacting with the inclined face of the first lug, and means for securing the two lugs together.

2. In a device of the character described, a split lens rim having abutting ends, said line of abutment being inclined to the sides of the rim, a lug on the eye side of the rim extending from one of the ends of the rim, the top of said lug having an inclined face making an acute angle with the line of abutment of the end of the rim, a bridge member joined to the other end of the rim above the line of abutment and having an extending lug aligned with the lug on the other end of the rim, and having a face contact ing with the inclined face of the first lug, means for securing the two lugs together, a pivot post 011 the bridge adjacent its attachment to the rim, and a guard lever pivoted on the pivot post.

WILLIAM C. EATON.

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