US841919A - Eyeglass-mounting. - Google Patents

Description

No. 841,919. PATENTED JAN. 22', 1907. N. M. BAKER.

EYEGLASS MOUNTING.

APPL IOATION FILED JULY 12, 1905.

UNITED STATES PATENT OFFICE.

NELSON M. BAKER, OF WVORCESTER, MASSACHUSETTS, ASSIGNOR TO AMERICAN OPTICAL COMPANY, OF SOUTHBRIDGE, MASSACHU SETTS, A CORPORATION OF MASSACHUSETTS.

EYEGLASS-MOUNTING.

Specification of Letters Patent.-

Patented Jan. 22, 1907.

Application filed July 12, 1906. Serial No. 269.308.

1'0 Ml whom, it may concern:

Be it known that I, NELsoN M. BAKER, a citizen of the United States, residing at Southbridge, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements in Eyeglass-Mountings, of which the following is a specification.

My invention relates to im rovements in eyeglasses, and more particular y to improvements in eyeglass-mountings, comprising the post, bow-spring, and nose-guard.

The object of my invention is to improveupon the construction of the post, bowspring, and nose-guard at their attached ends as ordinarily made, and particularly to attach the bow-spring and the nose-guard to the post in such a manner that there will be no liability of any lateral movement of the bow-spring and nose-guard to loosen the attaching-screw.

My invention consists in certain novel features of construction of my improvements, as will be hereinafter fully described.

Referring to the drawings, Figure 1 is a perspectiveview of a single eyeglass having mountings embodying my improvements combined therewith. Fig. 2 is a front view of the nose-guard detached. Fig. 3 is a section on line 3 3, Fig. 2, looking in the direction of arrow 0,, same figure. Fig. 4 shows the end of the bow-spring detached. Fig. 5 is a section on line 5 5, Fig. 4, looking in the direction of arrow 1), same figure. Fig. 6 is a detached view showing the head of the post in full lines and the bow-spring and nose guard in section. Fig. 7 corresponds to Fig. 3, but shows a modified construction of the attaching end of the nose-guard. Fig. 8 is a section on line 8 8, Fig. 7, looking in the di rection of arrow d, same figure. Fi 9 corresponds to Fig. 4, but shows a modified construction. Fig. 10 is a section 011 line 10 10, Fig. 9, looking in the direction of arrow 6, same figure. Fig. 11 is a modified construction of the construction shown in Fig. 10. Fig. 12 corresponds to Fig. 6, but shows a modified construction. Figs. 3 to 12, inclusive, are on an enlarged scale.

In the accompanying drawings, 1 is the lens, in this instance shown as rimless.

2 is the mounting for the bowspring 3 and nose-guard 4. The mounting 2 comprises the two straps 2, attached to the lens 1 by a screw 5 in the ordinary way, the side lugs 2, which rest upon the edge of the lens in the usual way, and the post 2', which in this instance has a recessed outer end or head with two side flanges 2 in the usual way. A central-threaded opening extends through the post 2 to receive the fastening-screw 7 in the usual way.

I will now proceed to describe my improvements, which relate more particularly to the construction of the attaching end of the noseguard and of the bow-spring in connection with the head of the post to prevent lateral movement of the nose-guard and bow-spring.

The end of the bow-s ring 3 has an opening 3 therethrough in t e usual way for the attaching-screw 7. spring is also preferably slotted or has a longitudinal opening 3 therein above and below the opening 3, as shown in Fig. 4,. The attaching end of the nose-guard 4 has an opening 4 for the attaching-screw in the usual way and also has therein in this instance above and below said opening 4 a grooved or depressed portion 4, (see Fig. 2,) forming a projection 4 on the under side of the attaching end of the nose-guard. (See Fig. 3.)

In assembling the bow-spring 3 and noseguard 4 in the head of the post 2 the projection 4 on the attaching end of the noseguard 4 is adapted to extend into the slotted end or the opening 3 in the bow-spring 3, as shown in sectional View in Fig. 6.

By making the attaching ends of the bowspring and noseguard with interlocking surfaces the parts are locked to each other and the nose-guard is prevented from moving, and any side pressure is brought against the spring, which as it is in the bottom of the post is not liable to spread apart the side flanges of the post and cause the loosening of the fastening-screw 7.

In Fig. 9 is-shown a modified construction of the end of the bow-spring shown in Fig. 4. In said Fig. 9 the end of the bow-spring is not cut through, but is grooved or recessed above and below the central opening 3, as shown at 3 Fig. 9, and also in Fig. 10.

In Fig. 7 is shown a modified construction of the attaching end of the nose-guard shown in Fig. 2. In said Fig. 7 there is no recess or The end of the bowgroove on the outer surface of the attaching end of the nose-guard, as in Fig. 2, but a projection P is formed on the inner side of said attaching end, as shown in Fig. 8.

In Fig. 11 is shown a modified construction of the end of the bow-spring shown in Figs. 9 and 10. In said Fig. 11 there is a groove or recess 3 on one side of the end of the bow-spring, and the other side of the end of thebow-spring is made curved instead of straight.

Fig. 12- corresponds with Fig. 6; but the inner end of the recess in the post is made curved to receive the curved inner surface of the spring.

It will be understood that the details of construction of my improvements may be varied, if desired.

In the preferred construction of my improvements the flanged head or outer end of the post may be of the ordinary construction with a smooth inner surface, and the end of the bow-spring will be slotted or provided with a recess to receive a projection on the attaching end of the nose-guard, or vice versa.

Having thus described my invention, what I claim as new, and desire to secure by' Letters Patent, is

1. In an eyeglassmounting, the combination with the outer end or head of the post, having a smooth inner surface to receive the bow-spring and nose-guard, of a bow-spring,

having an opening through its end for the attaching-screw, and also having an opening therethrough above and below said opening, and connected with said opening, and a noseguard having an opening therethrough for the attaching-screw, and having a grooved portion or recess therein above and below said opening, forming a projection on the inner side of the attaching end of the noseguard, to extend into the slotted end in the bow-spring, and a screw for attaching said parts together.

2. In an eyeglass-mounting, the combination with the outer end or head of the post, having a smooth inner surface to receive the bowspring and noseguard, of a bowspring, having an opening through its end for the attaching-screw, and a central longitudinal re cess therein connected with said opening, and a nose-guard having an opening therein for the attaching-screw, and having a central groove or recess therein above and below said opening, forming a central longitudinal projection on the inner side of the noseguard-attaching arm, to extend into the recess in the bow-spring-attaching arm, and a screw to secure the parts together.

NELSON M. BAKER Witnesses:

E. E. SABIN, J. C. WELLS.

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