US836057A - Eyeglass connection. - Google Patents

Description

No. 836,057. O PATENTBD NOV. 13, 1906.

- S. N. STONE.

EYEGLASS CONNECTION.

APPLICATION FILED FEB.15. 1906.

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UNITED STATES PATENT OFFICE.

SAMUEL NSTONE, OF ATTLEBORO, MASSACHUSETTS.

EYEGLASS CONNECTION.

Specification of Letters Patent.

Patented Nov. 13, 1906.

Application filed February 15.1906. Serial No. 301,197.

the post which supports the lens or lensframe. The construction and arrangement constituting my invention are believed to result in a fastening by which the parts are more securely combined than in those con trivances for like purpose with which I am acquainted.

I accomplish the object stated by fashioning and associating the parts as illustrated in the accompanying drawings, of which Figure 1 represents a face view of one member of the nose-guard, an edge view of one lens, a flat side view of part of the bowspring, and a front or top view of the box. Figs. 2 and 3 are top and bottom views of the box. Fig. 4 is a side view of one lens of a pair of eyeglasses with my invention applied, showing all parts assembled. Fig. 5 is a hori-'- zontal sectional view of the box and lenspost in one form, showing the parts secured by the screw. Figs. 6 and 7 are side and cross-section views of the box alone. Fig. 8 is another form of lens-post with a corresponding box, showing the parts secured by the screw. Fig. 9 represents a horizontal sectional view of the parts constituting my invention in their preferred form, and Fig. 10

is a side View of the preferred form for the lens-post shown by itself.

In all the views the scale of drawing is somewhat exaggerated for the sake of clearness of illustration, and like letters are used to refer to the same parts.

The lens A, which may or may not have a frame B, is supported by the post 0. The post is split vertically and longitudinally in the preferred form of my invention and the split or cleft is marked 0.

. The bow-spring is designated by the letter D and the nose-guard by the letter E. The arm of the nose-guard is marked a.

To cooperate withpost O, I construct a piece which I have termed in this description a box. Itis marked F. A countersunk screw-hole f passes through the top. Through opposite sides are formed the rectangular openings f (Best shown in Figs. 6 and 7). In its preferred form the box is provided with two opposite inclined interior surfaces f as illustrated in Figs. 3, 7, and 9. The opening through the bottom is marked f In the modifications presented in Figs. 5 and S the inner walls of the box are not inclined. The screw is referred to by the letter G.

Considering Fig. 5 it Will be noted that the post C enters the box, but possesses no projecting lugs or flanges. The ends of the bowspring and the arm of the nose-guard are passed one upon the other through the opposite side openingsf of the box, which is then slipped over the end of the post 0 and the screw inserted through all the parts and into the threaded bore 0 of the post. This arrangement is the same as that shown in the second modification illustrated in Fig. 8, the difference in structure being the provision of the straight flanges c, projecting from the end of post G into the box, as shown. The construction shown in Fig. 8 is thought to be rather more secure than that set forth in Fig. 5 for the reason that the space between the flanges 0 may be made to exactly fit the ends of bow-spring and arm 6, and the size of the box and its openings need not be so particularly considered. In Fig. 5, to effect a secure fastening, the Width of openings f of box F should conform closely to the width of spring D and arm 6, as shown.

It will be. noted that the top and sides of box F are formed integrally. By reason of this integral construction no part of the box can be bent or displaced and project in an unsightly way, and the sides cannot spread apart. Furthermore, the box construction is found to be relatively much stronger and more durable for a given weight of metal than those parts having like functions in eyeglass connections with which I am acquainted. Weight is a material consideration stock'and leaves it soft and readily bent and disarranged. By use of the box element of my invention no solder is applied, for none is needed. The boxes are drawn and shaped by dies, leaving them very hard and strong.

The preferred form of my invention is illustrated in Figs. 3, 7, 9, and 10. In Fig. is best shown the post C, provided with the vertical longitudinal cleft c, which is threaded for the reception of the screw G. There are also shown the projecting wedgeshaped lugs 0 In Fig. 9 it is shown that the lugs c engage the inclined inner and opposite surfaces f of the box, and when the screw G is set up the result is to press the sides of the cleft c firmly upon the screw G and to wedge the ends of the bow D and arm a of the noseguard securely in place. In that way all the parts are forced into contact with each other, and the action of the screw is to exert through the box and post 0 a clamping eflect upon itself, increasing as the screw is tightened.

Having thus described my invention and explained the mode of its operation, what I claim is 1. In an eyeglass connection, the combination with a lens-post, of a box interiorly formed to receive the end of said post, the said box having aclosed top pierced by a screw-hole, the said box having two opposite continuous side walls and two opposite side walls provided with corresponding openings, the top and all said side walls of the box being formed integrally, a bow-spring, a

nose-guard, the ends of the bow-spring and nose-guard being passed one upon the other through the said openings of the side walls of the box, and a screw passing through the top of the box and through the ends of the bow-spring and nose-guard and into the lens-post whereby all parts are secured together, substantially as described.

2. In an eyeglass connection, the combination with a lens-post having projecting lugs at its outer end, of a box interiorly formed to receive the end and lugs of said post, the said box having a closed top pierced by a screw-hole, the said box having two opposite continuous side walls and two opposite side walls provided with corresponding openings, the top and all said side walls of the box being formed integrally, a bowspring, a nose-guard, the ends of the bowspring and nose-guard being passed one upon the other through the said openings of the side walls of the box, and a screw passing through the top of the. box and through the ends of the bow-spring and nose-guard and into the lens-post whereby all parts are secured together, substantially as described.

3. In an eyeglass connection, the combination with a lens-post having a cleft formed lengthwise through it and having also projecting wedge-shaped lugs at its outer end, of a box interiorly formed to fit upon the end of the said lens-post, the said box having a closed top pierced by a screw-hole, the said box having two opposite continuous side walls and two opposite side walls provided with corresponding openings, the bottom of the said box being open, a bow-spring, a noseguard, the ends of the bow-spring and noseguard being passed one upon the other through the said openings in the side walls of the box, and a screw passing through the top of the box and through the ends of bow-spring and nose-guard and into the lens-post whereby all parts are secured together, substantially as described.

4. A box for eyeglass connections comrising a closed top and an open bottom, and having two opposite continuous side walls, and two opposite side walls provided with openings, the top and all said side walls of the box being formed integrally, substantially as described.

5. A box for eyeglass connections comprising a closed top pierced by a screw-hole, and having two opposite continuous side walls formed with inclined interior surfaces, and two opposite side walls provided with corresponding openings, and the bottom of the said box-nut being open, substantially as described. I

In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL N. STONE. Witnesses:

EDWARD J. BowEN, MRs. M. HOLLAND.

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