US1428914A

US1428914A - Assigitoe

Info

Publication number: US1428914A
Authority: US
Publication date: 1922-09-12
Anticipated expiration: 1939-09-12

Description

E'. LVSCHUMACHER. OPHTHALIVIIC MOUNTING. APPUCATION FILED SEPT. 5, |919.

PatentedSept, 12, 1922.

FIG N FIG yl A TTORNEYS.

` Patented Sept. 12, 1922.

UNITED STATES the,

ELMER L. SCHUMACHER, or sonrnnlernen,V Massacnusnrrs, Assienon To AMER- ICAN OPTICAL COMPANY, or son'rrrninen, Massaal-inserts, A. VOLUNTARY ASSOCIATION F MASSACHUSETTS.

OPHTHALMIC MOUNTING.

Application filed September 5, 1919. Serial No. 321,928.

To all 'whomt't may concern:

Be it known that I, `ELMER L. SCHU- MAGHER, acitizen of theUnited States, re-

siding at Southbridge, in the` county of y Worcester and State of Massachusetts, have invented certain new and useful Improvements in Ophthalmic Mountings, of which the following is a specification.

This invention relates to improvements in ophthalmic mountings, and has particular reference y to a mounting comprising both metallic and non-metallic portions.

Previous to the present invention mountings of this general character have been produced in a number of ways, including the securing of sheet, grooved or other nonmetallic stock, to metallic parts of mountings, as by rivets, screws, clam s or other forms of fastening devices, whi e in addition attempts have been made to produce a structureof this character by taking a regular 'frame and dipping or coating` it with a film of liquid celluloid or the like. The metallic fastening devices have possessed considerable disadvantage due to their appearance, to the weakening of the material by the application of thesecuring device, and the like, while when attempts have been made to `coat standard frames the coating material has filled` up the lens receiving groove, thus altering `the size and making it no longer standard, and the appearance produced has been unsatisfactory and not practically usable as an ophthalmic mounting. This is i due to a considerable degree to the fact that an ophthalmic mounting being worn on the face, comes into line with jewelry and other articles of personal adornment or display,`

and extreme care must, therefore, be taken in construction of such frames not only that they be of standard size suitable to receive `standard lenses which are produced both `by the factory and the prescription house, to certain denitely fixed measurements. but

n in addition the frames must be both durable `in iinish and neat and attractive in appeary ance to render them a commercially satisfactory article. i l

. In addition, by the use of the hitherto at- 5`0 tempted coating process it has been impossible to produce frames of other than solid color, or in other words, impossible to produce imitation shell or mottled frames,

:suchuas are in public demand at the present or crack.

since when loosened it may be peeled oill in i sheets or strips.

It is, therefore, the purpose of my present invention to provide a novel and improved frame and process of constructing the same by which the frame or mounting may be given any desired color or color combination, in which the metallic effect of ordinarily coated frames may be eliminated and the appearance of a irame covered with sheet or rod material secured, in which the frame shall possess all the advantages, structurally and functionally, of a frame covered with Zylonite or other composition in solid Yl'orm, and at the same time shall be free from all separate fastening devices oi' lany character, in which the entire trame or mounting, or any selected portions thereof,

desired, may be equipped with such coating, and in which the mounting shall when in completed form, be of exact standard size to properly receive standard ophthalmic lenses and securely hold these lenses against any possible twisting or slipping movement.

Many enamels or coatings are brittle and will crack and chip ofi, and where such a coating is used, for they possess otherwise many advantages of appearance and application, it is an object of my invention to provide a protective coating which will not mar the appearance and which will not chip This protective coating may be transparent or it may contain color, as desired. Many combinations oi"- color may be made by `judicious arrangement oib color in each of the two coats and many variations and effects be thus obtained.

Frames ttor eyeglasses and spectacles are made to it lenses of predetermined size, known as the .size oi eye. The lenses are ground to these standard eye sizes so that they are interchangeable in the frame. T this were not so each lens would have to be `ground separately and specially to fit any It is, therefore, of the '.curatel to size in its lensk receivinr arts and it 1s an object of by inventionr to `produce a combination frame of metal and non- :metallic` material in which the lens receiving part is made accurately to size,e\vhich hitherto has been impossible in the so-called coated frames.v

- Other objects and advantages of 'my improved construction vand process of producing same should be readily apparent by reference to the following specification taken in connection with the accompanying drawings, and it'Will be understood that I may makeV any modifications in the specific details of construction shown `and described Withinthe scope of the appended claims Without departing `from `or exceeding the spirit of my invention. y Figure I represents a front View of a completedA frame embodying my improvements.

II, III and IV illustrate certain steps in my recess. s j i y `Figs.` V, I and yVII illustratel enlarged detail views further illustrating my invention.4 I

Figure ,VIII illustrates a final step in my process. f

Figure IX represents a sectional view as on the line IX-IX of Figure VIII. y

Referring'particularly to my improved process of productiono'f combination metallicy and. nonmetallic mountings and my improved frame or mounting as thus produced, I have illustratedfin'connection with Figure II theA initial formation of a metallic rim, which rim is designed to be coated or coveredk With a non-metallic material in a permanent manner. It is quite essential that thefinal interior diameterV of the frame shall be oan exact standard size and I, therefore, prefer to Start Witha frame which is itselfl of a predetermined size. To attain this result I place Within the groove of the metal frame 1v the sizer plate 2, which may be designed to produce a 40 millimeter eye, for example, the diameter of the sizer plate being shown as of 41% millimeters, and the frame being gripped on the end piecesv 3 lby the stretcher jaws 4 to stretch the frame to exactly ,fit the lll-F,- millimeter plate, the eye Wire being thus vstretchedwith this additionalv size to allow for subsequent filling upV of the lens receiving groove by the coating material so that the final size will be the exact 40 millimeter diameter required.

It will be understood that while I have illustrated my invention inl connection with the eye Wire portion of an ophthalmic frame, itis not limited to this articular type of constructionA but is capab e of use for coating of bridges, guards, end pieces, temples V,or any other portion of an ophthalmic mountmgg the reason for illustrating it in connection witha `frame `being that certain difficulties present 'themselves in connection one", color applied separatel with the coating ,of aframewhichare not present in connection with other portions of a mounting, and I have, therefore, illustratedand described the most difiicultform in my patent, it being `undmetoodthat it may be used `:tor any of the simplereforms as desired.

In the coating of the frame I may either apply the material to all portions of the frame, or mayprefer that certain portions, as for example the end pieces, outer face of the bridge or kentire bridge, be 4free from such coating If desired to eserve certain portions from the coating t ey are' preferably blanked oil', as by the application of a protecting coating ofgrease, collodion or other suitable'film 5, to the,parts, which `tvill prevent thec'oating material from adhering thereto, `but which Vmay be. readily removed when the operation 1s completed. The desired parts havlng been thus rotected I preferably proceed with the' pro( uction of my frameby suitably coating the eye frire, temple, or other part with a layer or film 6 ot a suitable metal enamel lacquer or thc like, which will firmly adhere to the metal parts.y This may be applied by dipping, by

:the spray device 7 g this may be a coating requiring .baking to fix it mplace, an air ldrying coating, orl the t may be a coating cfa single color or o'more than or consecutivelypthatis to say, ajsing e ent-ire coating may be ap lied, allowed to dry and patches of a di ercnt color applied, ordificrcntparts may be applied during the one operation. 4The different `,colors produce a rmottled effect, as for instance, the* red and Lbrown portions 8 and 9 indicated in connection with Figure IVL'4 Also, the enamel or lacquer maybe so applied as to produce a smoothV finish surface, as shown in Figure VI, or may be so applied' and treated as to produce ay rough surface, as shown in Fi re V. I find this roughsurface particularly advantageous in securing adherence of the subsequent liquid thereto'` f l In some instances a smooth surface may be improved bythe application Vof a thin coat oi. glue, sizing or the like, l() thereover. The material having beenv thus suitablybuilt up, I apply, vas by dipping, one or more thick coatsrof liquid' Celluloid 1l to build up, give body and final `finished appearance, to the `Celluloid or the like tion of this by dipping as I have fou best results accomplished in this manner, although the materia-l is capahleof aplication by brush, air spray, or the like, 1 preferred. Als`othis`coat`may be applied of a cleartransparent material which will all'ow the underlyi renamel or lacquer coats to shorv'throug 1 clearly, but Witlir. glossy a pearance due tothe presence of the cellulbld rframe.` I particularly refer to the applicuor the celluloid-zylonite or similar material may have a color et itselit to combine with that already on the trame, or a su'liiciently deep color to conceal to a great degree that which has been previously applied, this being regulated entirely by the desire ot the manufacturer and the particular result which he wishes to accomplish. ever, the ultimate result is the same, in that a novel and improved construction is the result of my process, which construction has an initial coat lirmly gripping and engaging the metal and forming a :foundation i'or the subsequent non-metallic material built up thereon in heavy body form and with such color and markings as are-desired.

l would call particular attention to the fact that by my improved process it is possible to produce attractive and desirable ophthalmic mountings and littings therefor which shall be mottled in imitation ot shell or in any desired way, a result impossible of accomplishment by previously known dipping processes for coating of ophthalmic mountings.

As a final step in the completion of my improved process and to produce a commercially practical frame, something not hitherto produced through dipping, I place the coated trame about the former 12 which has its exterior diameter exactly correct and is preferably interiorly heated as by the coil 13. The trame is then again stretched around this Yformer 12 through the use of the jaws 4:, as in the initial step of my process, the heated Jformer softening the covering composition within the groove and allowing the frame to come down around the former When the groove will be the exact diameter and of exact 'circumferential measurement necessary to properly lit a standard lens and eliminate any possibility of the lens twisting or turning when mounted within the frame: It will be apparent that when the above operation is carried out the excess material will be pressed outwardly thus eliminating a portion of the coating materialin the groove of the eye wire.

.ln those cases where the enamel layer is of a brittle or frangible nature it may be readily seen that the coating of tough, elastic, celluloid will form a protective coating, preventing the enamel from chipping oil and at the same time maintaining the luster and sheen of the highly polished surface I claim:

1. The process of forming a combination metallic frame consisting in forming a me tallic Jframe with a lens receiving groove, coating the frame with a noirmetallic material, and subsequently removing the ma- In any event, how

terial from the groove oit the trame to form a, lens receiving groove ot .standard diinenu sions.

2. The process ot producing a composition ophthalmic mounting consisting in forming an eye wire with an interior groove, build ing up a composition coating on the eye wire and producing a standard size lens reA ceiving groove in the trame by eliminating a portion ot the coating within the groove.

3. The process oi' making a lens receiving` iframe tor an ophthalmic mounting comprising making a metallic trame section with an interior groove, building up a composition covering on the metallic trame section and producing a standard size lens receiving groove in the trame by eliminating a portion oil the coating within the groove oi' the metallic trame.

Il. The process of toi-ming a combination metallic trame consisting in coating a metallic trame with a heat solitenable non-me tallic material and stretching the combined frame around a heated size plate whereby the non-metallic material is displaced by the size plate to produce a standard size lensreceiving groove.

5. The process et forming a lens receiving iframe :tor ophthalmic purposes, consisting in constructing an ophthalmic mounting, stretching the eye wire to predetermined oversize, applying` a metal engaging enamel to the eye wire7 applying a sizing to the enamel, building up a composition covering around the sizing, and stretching the built up eye wire about a heated. standard eye size plate to displace a portion ol' the outer coatn ing, and form a standard size lens receiving groove within the eye wire.`

6. As an article ot manu'liacture, an ephthalmic mounting including a metal base member and a built-up composition coven ing therefor having a lens receiving groove ot standard size, said composition covering being displaced at the groove to produce the necessary standard measurements at this point.

7. The process oi making a lens-receiving 'trame ttor an ophthalmic mounting comprising making a metallic iframe section slightly larger than the size oit lens to be fitted therein, covering the trame section with a nonmetallic coating and shaping the coating over a t'ormer ot the enact lons size.

In testimony whereof, l have aliined my signature in presence of two witnesses.

ELMEB, L. SCHUMACHER.

Witnesses:

l-l. lil. Pnusons, Amon Gr. l-lAsnnLL.

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