US1174891A - Lens-mounting. - Google Patents

Description

C. C. NORRIS.

LENS MOUNTING.

APPLICATION FILED JUNE 8,1915.

' 1,174,891. v Patented M21127, 1916.

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7 I 73/ glnficntur THE COLUMBIA PLANOGRAPH 60-. WASHINGTO D. c.

clip may CHESTER c. NORRIS, or Barnezarnen, GEGRGIA.

LENS-MOUNTING.

Specification of Letters Patent.

Patented Mar. a, rare.

Application filed June 8, 1915. Serial N0. 32,944.

To all whom it may concern Be it known that I, CHESTER C. Norms, a citizen of the United States, residing at Bainbridge, in the county of Decatur and State of Georgia, have invented certain new and. useful Improvements in Lens-Mountings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to optics, and more especially to lens mountings for eyeglasses and spectacles; and the object of the same 'is to produce an improved lens mounting which does not require the perforation of the lens and passes no member through or into the glass. has hitherto been attained, the present in vention contemplates the employment of a While this same broad end sheet metal and preferably a spring clip passing around the edge of the lens with the leaves overlying its faces, two jaws are gripped, and positive connections be a clamp including between whose faces said leaves tween the leaves and jaws to prevent their disengagement when the clamp is in place. T he invention also contemplates the connec- -;tion of said jaws by detachable means such as a screw, which when loosened permits the of one jaw so that the lens and its be disconnected from the clamp.

found in the following specifiremoval Details are cation and claims and are illustrated in the accompanying drawings wherein Flgure 1 1s an elevation of a pa1r of spectacle's with this invention applied, the inner ;member,of the clamp or jaw being omitted ,at the left of the view where indicated by the letter a, all parts being in place where indicated by b, the jaw and the clip being both omitted where indicated by 0, and both again omitted and the fixed jaw or stud removed from the lens where indicated by (Z. Figs. 2 and 3 are enlarged perspective details of the jaw and clip respectively. Fig.

i is an enlarged section on the line 44 of Fig. 1. Figs. 5, 6, 7 and 8 are plan views of slight modifications showing the jaw and clip assembled. Fig. 9 is a perspective detail of yet another form of jaw, and Fig. 10 of the clip which will be used therewith. Figs. 11 and 12 are sectional details'showing respectively the uses of the jaws shown in Figs.'6 and 9.

I have shown this invention as applied to a pair of spectacles which will have carpieces E and studs at the outer sides of the lenses L, but it is quite obvious that these would be omitted when the invention was applied to a pair of'eyeglasses. In either case the nose-piece N will be of the usual .or anypreferred formation, but with eyeglasses it will carry the nose-guards which are not illustrated herein. In Fig. 1 are shown four studs, but with eyeglasses there will of course be but two. Much difliculty has been experienced in drilling holes through the lenses, in mounting the metal parts thereon which is usually done by the passage-of screws through said holes, in the subsequent separation or adjustment of parts, site its hole. These objections I propose to avoid by omitting the holes. This also has previously been suggested, but then the difficulty arises of connecting the lens with the stud by clamping means or jaws which will grip the glass with suiiicient force to hold it properly, but yet will not crush it.

Broadly speaking, the fundamental principle of this invention is the employment of a metal clip which is usually a spring plate bent over the edge of the lens into two leaves cemented upon opposite faces of the glass, and the adaptation of the jaws of the clamp to this clip in such manner that the parts are rigidly but is obvious that this mounting can be applied to the lenses of spectacles or eyeglasses, I have illustrated only the former in Fig. l and will describe the same.

The so-called clamp forming part of my invention is made up of two jaws whereof the lowermost or fixed jaw 1 best seen at c in Fig. 1 constitutes the stud and merges at its outer end integrally into the bridge or nosepiece N. In the case of the outer stud as seen at a in Fig. omitted and the outer end of this jaw will carry two knuckles 2 between which on a pivot 3 is mounted a single knuckle at the inner end of the ear-piece E as usual. With respect to the present invention, the upstanding knuckles may be said to be. the equivalent of the upstanding portion of the nose-piece N excepting that there are two of the former and but one of the latter. Otherwise the fixed jaw or stud as it is called herein is substantially a duplicate of the movable jaw which I will hereinafter refer to by the single term j aw.

l, the nose-piece will be separably connected. While it L into two leaves 11 and 12 which are preferably rounded on their inner edges as at 13 so as to present no corners or obstruc tions to the vision. Said view illustrates how fingers 11 might be formed when this sheetmetal plate is stamped, the obvious purpose of the fingers being to follow the curvature of the lens as usual; but I do not consider them necessary in this improved mounting. The upper leaves of the clips are provided with upstanding lugs and the lower leaves with downwardly extending lugs for a purpose yet to appear. These lugs are shown in Figs. 1, 3, 5, 6 and 7 as two in number on each leaf, thosein Figs. 1 and 3 being substantially square as shown at 15, those in Figs. 5 and 7 being other then square as shown at 16, and the lugs 17 of Fig. 6 being substantially round or more in the nature of pins. Asingle dove-tailed lug 18 as shown in Fig; 8, and a single upstruck hump 19 in Fig. 10 forms the lug on each leaf. In applying this clip to the lens it is slipped over the edge of the same with its leaves 11 and 12 passing above and below the glass and its bend 1O (and fingers 14 if they are employed) following the edge of the glass, and it is cemented rigidly to the glass of the lens by any suitable cement such for instance as that known as liquid glass. The clip is not intended to be removed fromthe lens, even though it be removed from the clamp, although it is of course possible to remove the clip if desired. Each lens of a pair of eyeglasses will have but one clip, whereas spectacle lenses will have two.

The jaw forming the removable member of the clamp is perhaps best seen in detail in Fig. 2, and whatever its outline it preferably follows the outline of the stud. At its outer end it has a depending foot 20 adapted to rest upon the stud and hold the remainder of the jaw spaced above such stud a distance equal to the thickness of the lens and the two leaves of the clamp and the cement; and otherwise the jaw is a fiat piece of metal which is not resilient. Next inside said foot its body portion 21 is by preference enlarged as shown at 22 and pierced with a hole 23 for the passage of a fastening member which is here shown as a screw 21, the threads of this screw engaging a threaded hole 25 in the stud as seen in Fig. 1 at 0. Inside the enlarged and perforated portion of the body is the jaw proper or lip 26 which overlies the leaf of the clip and is preferably made slightly smaller than such leaf and perhaps beveled around its edge as seen at 27 It is essential to my invention that this lip have recesses properly disposed to co-act with and closely engage the lugs on the uppermost leaf of the 2 as to permit the shank of the T to pass between them and so that their inner edges w1ll closely engage the outer edges of the T -head. The enlarged portion 22 of the body is rounded in Fig. 2, whereas in Fig. 7

5 it is made angular so that three sides of each lug 16 fit closely within the recess in the jaw. In Fig. 6 where the lugs 17are round, the recesses will be shaped accordingly- In Fig. 7 the T shape of the jaw is replaced by a dove-tail and the lugs'are shaped accordingly. In Fig. 8 the single-lug 18 on the clip is dove-tailed, and the jaw is provided with a single recess 28 which is also dovetailed to closely receive such: lug. The lug 19 of Fig. 10 may be a hump upstruck from the leaf 11, and in that case the recess 29 in Fig. 9 may be a hole through or simply an indentation in the inner face of the jaw.

Provision is madeat the outer end of the jaw for holding it strictly over thestud by means additional to the fastening screw 24. When this screw is tightenedup the foot 20 will be drawn forcibly down onto the stud, and the lip 26 at the inner end of the jaw will be drawn down onto the leaf 11; but in addition the outer end of the jaw may be forked as shown at 30 and the fork-arms will stand astride the sides of the nose-piece N as best seen in Fig. 1 at b. In Fig. 6 isshown a single projection or pin 32 which may be employed to pass between the knuckles 2 of an outer stud and extend fora slight distance under the interposed knuckle of the ear piece asseen in Fig. 11 and in Fig. 9 the jaw is carried farther outward for the same purpose and has a depending foot as seen at 31 which serves both as a fulcrum for the jaw and as ameans for centering its outer end between said knuckles as seen in Fig. 12. Obviously the screw or other fastening device 21 stands between this fulcrum and the lip 26 in any event, and the tightening up of this screw draws the jaw faces closely upon the leaves and compresses the latter onto the cement so as to fasten the clip to the lens.

\Vith this detailed description of the parts at their inner ends, and means for forcing said ends toward each other; of aspring clip adapted to pass around the edge of the lens with leaves between the faces of said jaws, and lugs on the leaves engaging said recesses.

2. In a lens mounting, the combination with a pair of jaws having recesses formed at their inner ends, and means for forcing said ends toward each other; of a clip of sheet metal having a bend adapted to pass around the edge of the lens and two leaves adapted to lie against opposite sides of the lens and the inner faces of said jaws, and elements on the leaves engaging. said recesses in the jaws when the latter are forced together.

3. In a lens mounting, the combination. with a pair of jaws, the outer end of one jaw being merged into a stud and the outer end of the other jaw resting thereon, and means for forcing the inner ends of the jaws toward each other; of a lens, a bent sheet metal clip having its bend passed over the edge of the lens and its leaves cemented to opposite sides thereof and underlying the inner faces of said jaws, and means for positively connecting said leaves respectively with said jaws when the latter are in clamping position. v

4:. In a lens mounting, the combination with a pair of jaws, and means for forcing them toward each other; of a lens, a bent sheet metal clip having its bend passed over the edge of the lens and its leaves cemented to opposite sides thereof and underlying the inner faces of said jaws,and projections on and recesses in said leaves and jaws making positive engagement with each other when the j aws are clamped upon the leaves.

5. In a lens mounting, the combination with a pair of jaws having enlarged inner ends, the outer end of one jaw being merged into a stud and the outer end of the other jaw having a foot resting thereon, and means between said foot and enlarged ends for drawing the jaws toward each other, of a clip composed of two leaves and an interposed bend, and lugs on each leaf shaped to engage each jaw outside its enlarged inner I end.

each other; of a clip composed of two leaves and an interposed bend, and a pair of outstanding lugs on each leaf spaced to stand astride the body of the jaw outside its enlarged inner end.

7 In a lens mounting, the combination with a pair of jaws whereof the outer end of one is connected with the stud and the outer end of the other has a foot resting thereon, the inner ends of both jaws being laterally enlarged to produce side recesses, and a screw'passing through one jaw and engaging the other between the ends of the jaws; of a clip including two leaves adapted to be cemented to opposite sides of the lens, and a pair of outstanding lugs on each leaf spaced to stand astride the body of the jaw and shaped to fit the recesses therein.

8. In a lens mounting the combination with the stud having a T-shaped lip at its inner end, a movable jaw having a foot at its outer end resting on said stud and a T-shaped lip at its inner end, and means between said foot and lip for forcing the latter toward the lip of the stud; of a pair of leaves adapted to be secured to opposite sides of the lens, and spaced projections on each leaf adapted to engage outside the lip of the jaw overlying it.

9. In a lens mounting for spectacles, the combination with the lens, the outer stud.

whose inner end underlies the lens and whose outer end has a pair of knuckles, and the ear-piece having a single knuckle pivoted between said pair; of a jaw whose inner end overlies the lens and whose outer end is provided with a foot resting on said stud and extending between the knuckles of the pair and under said interposed knuckles and a screw connecting the jaw and stud at a point between the ends of the jaw.

10. In a lens mounting for spectacles, the combination with the lens, the outer stud whose inner end underlies the lens and whose outer end has a pair of knuckles, and the ear-piece having a single knuckle pivoted between said pair; of a jaw whose inner end overlies the lens and whose outer end is provided with a foot resting on said stud and extending between said knuckles, means connecting the jaw and stud between the ends of the former, and a sheet metal clip comprising two leaves standing on opposite sides of the lens between the inner ends of the stud and the jaw.

In testimony whereof I aiiix my signature.

CHESTER C. NORRIS.

Copies of this patent may be obtained. for five cents each, by addressing the Gommissioner of Eatents, Washington, D. G.

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