US648894A - Eyeglass-mounting. - Google Patents

Description

No. 648,894. Patented May I, I900.

c. BILLINGTON .& s. N. sroua.

EYEGLASS MOUNTING.

(No Model.)

QI' a 2 Fl. 3. c 0 g i qxMme/am v atbwam 6, flfm'as I By 5% M0 UNITED STATES PATENT FFICE.-

CHARLES BILLINGTON AND SAMUEL N. STONE, OF ATTLEBOROUGH, MASSA- CITUSET'I'S; SAID BILLINGTON ASSIGNOR 'l-O FREDERICK \V. STONE.

EY EGLASS-MOUNTING'.

SPECIFICATION forming part of Letters Patent No. 648,894, dated May 1, 1900. Application filed August 17:, 1899. Serial No. 127,517. (No model.

To all whom, it nrty'cortecrn:

Be it known that we, CHARLES B11. LINGTON, a citizen of Great Britain, and SAMUEL N. STONE, a citizen of the United States, residing at Attleb'orough, in the county of Bristol and State of Massachusetts, haveinvented certain new and useful Improvements in Eyeglass.

Mountings; and we do: declare the following 'to be a full, clear, and exact description of the easily applied adjustable strap 'or clamp which will fit a lens of any thickness'and when the parts are. properly assembled will permit the stud or strengthening-piece to be secured upon the edge of the lens exactly midway between its surfaces. This position of the stud is found to aiford the firmest and strongest support to the lens, particularly in those eye: glasses which are known ,as framelessl that is, those wherein the lens es'are held by.

means of a clamping device and haveno frame or rim passing entirely'aroun'd the lenses.

To best accomplish the object stated,'we have devised a clamp or strap consisting of twin cla lnp members possessing certain wedgeshaped or tapering tails of extensions which are drawn in opposite directions through a or aperture in or through the stud-body, and

suitable aperture or slot in the stud and the ends clipped off and clenched or rounded tosm othly finish the exterior.

aeh constituent element of our invention is described in detail and its individual office,

together with the mode of operation offthe whole, fully explained hereinbelow.

Of the accompanying drawings, Figure 1 represents a side view of the complete mounting. in its final shape. mid-sectional view on line X X of part of Fig. 1, showing the aperture inthe stud through which the tails of the clamp members have been drawn. In this view the tails have not been clipped, but are delineated projecting Fig. 2 is a horizontal and ready for clipping and finishing. Fig. 3 is an outline plan view of the twin clamp members before being bent.

Likeletters mark the same parts through- I out the drawings, and the size of each elemen; is slightly exaggeratedto insure clearness of illustration.

- Considering the drawings, A designatesthe lens, and B and O the twin clamp members,

having the wedge-shaped or tapering tails b and c' andthe relatively wider and flat body portions b and c, pierced by screwthreaded orifices b and 0 (Best shown in Fig. 3.) In

Fig. 3 are shown the shoulders-b and 0*,t1ormed to produc'ea close smooth finish, as appears in Fig. 1. The tail of each clamp member fits into the shoulder of theot-her. 1 Through orifices b and c a screw D passes, engaging them and clamping'the lens between them in the customary m'anner. 1 The lensis furnished with a proper perforation for the purpose.

Letter E marks the crescent-shaped crosspiece common to all mountings of this do, scriptiomformed' to follow andrest against the edge of the lens, as shown; t f

Letter F marks the main portion or. body of the stud. Three pieces oflthe'm ain body ofv the stud are removed, leaving, first,-'the part of our present invention, neither bcw' -spring nor nose-guard is shown.

Letter f designates the transverse orifice it is within this orifice that the tails of the drawn through to the proper extent. There results a more elegant and sightly finish when the tails of the clamp members are wedge like or pyramidal and orifice f rectangular in cross-section; but it is believed to be with:

in the scope of our invention to fashion: these I elements conically and cylindrically'. From the outer recess f to the vorifice f there extends the screw-hole f threaded to receive andengage the screw G, (seeFig. 2,) by means.

of which the bowspring and nose-guard are secured in recess f.

Ordinarily in assembling the parts of our invention after the tails of the clamp members have been bent at right angles with the 1 body, as they appear in Fig. 2, the tails are passed through orifice f in opposite directions. Now if the extremities of the tails be drawn upon these parts will jam in orifice f and sufficiently hold the elements in position. In addition to this, however, screw G may be so selected as to length as to press against the two jammed tails within the orifice. Any slipping or other displacement is thus rendered practically impossible. At the time of drawing the tails through the orifice it will readily be understood that the cross-piece E may be placed in its permanent position upon the edge of the lens, midway between its surfaces. When the olipped ends of the clamp members are rounded or turned smoothly downward, the cross-piece E is thereafter what we claim, and desire to protect by Letters Patent of the United States, is the following:

1. In an eyeglass-mounting, the combination of a stud'having a suitable aperture, the twin clamp members provided with tails or extensions said stud having the screw-hole f*,- the sai screw-hole opening into the aperture in the stud, and the screw G adapted to engage sai'd screw-hole, substantially as described.

2. In an eyeglass-mounting, the combina tion of the stud having a suitable aperture, and the twin clamp members provided with wedge-shaped tails or extensions, substantially as described. v

3. In an eyeglass-mounting, the combination of the stud having a suitable aperture,

and the twin clamp members provided with tails or extensions, said clamp members having each a shoulder, substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

\Vitnesses:

ELIZA BILLINGT'ON, JOSEPH CALLAHAN.

Images