US2644355A

US2644355A - Lens adjusting tool

Info

Publication number: US2644355A
Application number: US227851A
Authority: US
Inventors: John J Greco
Original assignee: Individual
Current assignee: Individual
Priority date: 1951-05-23
Filing date: 1951-05-23
Publication date: 1953-07-07
Anticipated expiration: 1970-07-07

Description

July 7, 1953 J. J. GRECO LENS ADJUSTING TOOL Filed May 23, 1951 INVENTOR. 'JOHN J. GRECO Patented July 7, 1953 John J .Greco, Brooklyn, N. Application May 23, 1951, Serial No. 227,851

This invention relates to new and useful improvements in a lens adjusting tool to be used for adjusting the rotative position of a lens withm the rim of a shell-type mounting frame.

More particularly, the present invention proposes characterizing the lens adjusting tool by a pair of levers which are pivotally interconnected intermediate of their ends to have opposed jaws on one side of the pivot and against the in er faces of which resilient bodies are positioned to clamp between them the lens of an eyeglass mounting frame in a manner to rotate the lens in the respective rim without danger of breaking the lens. v

Heretofore, there has been constructed a lens adjusting tool of the general type proposed by the present invention, in which at least one of the resilient bodies has been loosely mounted on its respective jaw. Such construction has been found objectionable because the loosely mounted body did not always seat flush against its respective face of the lens with the result that when final pressure is applied to the lens for gripping the same, the loosely mounted resilient bodywas drawn into a position seated flush against its face of the lens and so exerted a pressure on the lens which cracked the same.

It is the primary purpose of the present invention to provide a lens adjusting tool of the type referred to in which both of the resilient bodies are fi'xedly' mountedon their respective gripping jaws so that when the bodies are brought together they seat flat against their respective faces of the lens from the moment of contact therewith and so overcome the objection to the previously proposed lens adjusting tool.

A'further object of the present invention pro poses forming the levers-as hollow stampings to reduce the weight thereof and to provide filler blocks within the hollow jaws of the levers in a manner to reinforce and strengthen the 'jaws.

Still another object of the present invention proposes a novel means for fixedly mounting the resilient bodies upon the inner faces of the jaws which also functions to fixedly retain the filler blocks in' position within those jaws.

- Thepresent invention further proposes providing the resilient bodies with generally flat gripping surfaces and to improve thegripping qualities of mg serrations.

-A still further object of the present invention proposes a novel means for anchoring one of the resilient bodies against possible rotative movement about its mounting axis which anchoring; means will also function to retain the lens and the'other resilientbody against possible rotative the faces of those bodies by forming the face of one of the bodies with the slightest concavity and T the face of theother'of the bodies with roughen 6 Claims. (Cl. 813.6)

all

movement when the resilient bodies are in position gripping a lens.

It is a further object of the present invention to construct a lens adjusting tool which is simple and durable, whichis-efficient for its intended purpose and which can be manufactured and sold at a reasonable cost.

For further-comprehension of" the invention,

and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and i to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a side elevational view of a lens adjust ing tool constructed in accordance with the present invention.

Fig. 2 is an enlarged transverse sectional view taken on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged partial longitudinal sec-- tional view taken on the line 3-3 of Fig; 2;

Fig. 4 is a perspective view of one of the resilient bodies, per se.

Fig. 5 is an enlarged perspective view of the anchor plate used on the resilient body shown in Fig. 4.

the'filler blocks.

Fig. '7 is an enlarged transverse sectional view taken on the line l- -l of Fig. 1.

Fig. 8 is an enlarged partial longitudinal sectional view taken on the line 8-8 of Fig. 7.

Fig.9 is a perspective view of the other of the resilient bodies, per se. Fig. 10 is a view similar to Fig. 9, but looking at the other side of that other resilient body.

The lens adjusting tool, according to the present invention, includes a pair of levers 20 and 2| which are interengag'ed intermediate of their ends and pivotallyconnected together by a'pivot pin 22. The levers 29 and 2| are in theform of hollow stampings providing opposed hollow jaws 20 and Zi and opposed

handles

20 and 21 Mounted on the pivot pin 22, there is a coil spring 23 which has ends engaged within the handles 20 and 2 I b urging those handle apart as shown in Fig. 1 and in turn. maintaining the jaws 20 and 2 l spaced from each other. The construction is such that when the handles 20 and -2l are squeezed together against the action of the. spring 23, the

jaws

20 and 21* will also move together.

Positioned against the inner faces of the jaws 20 and 2|- there are resilient bodies Hand 25 so as to grip a lens between them when the jaws are moved together. Each of the

bodies

24 and 25 is formed of rubber (real or synthetic) and has a generally flat inner gripping surface. How- Fig. 6 is an enlarged perspective view of one of practice is very slight so that the surface will" have the slightest suction grip upon the-facegofi the lens contacted thereby, which suction grip will release itself the moment the gripping pres sure of the resilient body 24 is released.

The

gripping bodies

24 and 25 are circular in configuration with the body 24 slightly larger in diameter than the body 25. However, each of the bodies is of a diameter less than the internal diameter of the lens mounting rims of the frame ofa' pair of eyeglasses.

Toreinforce theihollow gripping jaws 20 and.

21 there is positionedrin each of-the jaws'afiller block .21. of r metallic material. 2'! are shaped to conform to the interior shape of thegripping jaws 28 and 2| andaare formed with outwardly directed flanges 28. which seat on the; edges ofthe materialof the jaws, as-best shownin Figs..2, 3, '7 and 8.

Means is providedfor fixedly mounting each of the resilient bodies-24 and 25 in position upon therespective jaw 29 or 2l which-mounting means also functions toanchor the filler blocks 21 in position within the jaws. The mounting means comprises mounting posts 29 which extend coaxially from the sides of the resilient bodies 24 ancl25 facing-thegripping jawszfi and 2P The posts 29 have enlarged heads 3.0 within there.- silient bodies and 25and shoulder portions 3| for preventing undue pressures-from being placed upon'the resilient bodies by the mounting means as will become clear as this specification pro-7 ceeds. The free outer ends of the mounting posts 29-?are extended through holes 32 formed in the material of the gripping jaws 20 and 2l and into complementary alignedzholes 33 formed-in the respective filler block 21. Extended inward from the free ends of the mounting posts 29, there are threaded recesses 34 .intowhich screws 35 are threaded. The screws 35 are threaded into the mounting posts 29 from theouterv faces. of the; filler blocksand have their heads' bearing against the outer faces of those-filler blocks 21. Thus, themounting means fixedly mounts the resilientbodiesirrposition on the-inner faces of the gripping jaws zll and 2| and at the same timeretains the fillerblocks 21 inposition. How-- anypossible rotative movement so that when a lens is gripped between the resilient bodies the lens and theother resilient body 25 will alsojbe retained against possible rotative movement. That retaining means 7 comprises a. small circular anchor plate 36 which .isset'into the :outer faceof the resilient body 24swith its outer face flush, with the outer face of the resilient body and with.

its innerfaoe contacting the shoulder portion. 3| of the respective mounting post 29. The anchor plate 36' is formed with a concentric hole 31 through which the respective post 29 passes.

Projecting from three sides'of the, plate, 35 there are lugs 38 which are molded into the ma- The, filler blocks;

terlal of the resilient body 24 holding that body from turning relative to the plate 36. Extending from the fourth side of the plate 36, there is a right-angularly bent lug 39, see Figs. 3 to 5, which is engaged into a complementary hole 40 formed in the material of the jaw 20- for anchoring the plate 36 against turning relative to the jaw 20 The hole 40 is formed in the jaw 20 tonne side of the hole 32, as shown in Fig. 3.

Tofurther assist in holding the resilient body 24 against rotative movement, the outer face of the 'resilientbody is formed with a U-shaped rib 4| whichextends about the free end of the jaw 20*, as shown in Figs. 1 to 3. The rib 4| is molded directly across the outer face of the lugs 38 to the anchor plate 36 so as to securely retain the anchor plate in position in its'recess withinthe outer faceof the resilient body 2-4.

From Figs. Zand 3, it will be noted that the. shoulder portion 3| ofthe mounting post of the resilient body 24 is engaged against the. inner face of the anchor plate 35 On the other hand.

the-shoulder portion.3| of the resilient body 25' is seated directly on the jaw 2|, as shown in Figs. '7 and 8. Thus, those shoulder portions 3| func:

tion to prevent anyundue pressures from being.

against the opposite sides of the lens from the moment that contact is made therewith. Such construction prevents any stresses being. applied to the surfaces of the lens .when. full pressure .is applied thereto which wouldtend to break the lens.

WhileI have illustrated and described .thepreferred embodiment of my invention, it is to. be understood that I do-not limit myself 'to the .pre

cise construction herein disclosedandthe right is reservedto all changes and modifications coming within the scopeof the. invention as. defined in the appended claims.

Having thus described my invention; what I. claim as new, and desire to secure by United States Letters .Patent is:

1. In a lens adjusting tool having'a pair. of levers-arranged in crossed relation andpivoted to each other at their crossed areas, opposed jaws on the-levers on one sideof their pivotal connection, said. jaws being hollow and having: open sides facing-away from .each other, filler blocks positioned in saidjaws from the open sides there-'- of, ayresilientbody of a peripheral. size less than the internal diameter of the lens' mounting frames of a pair of eyeglasses positioned against the inner face of each .of said jaws, the peripheral size ofone resilient ,body being greater than the other, and means fixedly mounting said bodies in position on the inner. faces of said jaws and retaining said'blocks in position in said jaws reinforcing the same- 2. In a lens adjusting. tool havingiapair of levers arranged in crossed relation and pivotedto each other at their crossed areas;.opposedj aws on.

of a pair. of eyeglasses. positioned. against. the

inner face of each of said jaws, and means fixedly mounting said bodies in position on the inner faces of said jaws and retaining said blocks in position in said jaws reinforcing the same, one of said resilient bodies being of a peripheral size slightly greater than the other resilient body, the larger of said resilient bodies having a slight concavity and the other having its face roughened.

3. In a lens adjusting tool having a pair of levers arranged in crossed relation and pivoted to each other at their crossed areas, opposed jaws on the levers on one side of their pivotal connection, said jaws being hollow and having open sides facing away from each other, filler blocks positioned in said jaws from the open sides thereof, a resilient body of a peripheral size less than the internal diameter of the lens mounting frames of a eyeglasses positioned against the inner face of each of said jaws, and means. fixedly mounting said bodies in position on the inner faces of said jaws and retaining said blocks in position in said jaws reinforcing the same, one of said resilient bodies being of a peripheral size slightly greater than the other resilient body, said mounting means comprising mounting posts extending from the faces of said resilient bodies facing said jaws, said mounting posts being passed into aligned holes formed in said jaws and said filler blocks, said mounting posts having threaded recesses extended in from the outer ends thereof, and screws threaded .into said recesses from the outer faces of said filler blocks.

4. In a lens adjusting tool having a pair of levers arranged in crossed relation and pivoted to each other at their crossed areas, opposed jaws on the levers on one side of their pivotal connection, said jaws being hollow and having open sides facing away from each other, filler blocks positioned in said jaws from the open sides thereof, a resilient body of a peripheral size less than the internal diameter of the lens mounting frames of a pair of eyeglasses positioned against the inner face of each of said jaws, and means fixedly mounting said bodies in position on the inner faces of said jaws and retaining said blocks in position in said jaws reinforcing the same, one of said resilient bodies being of a peripheral size slightly greater than the other resilient body, said mounting means comprising mounting posts extending from the faces of said resilient bodies facing said jaws, said mounting posts being passed into aligned holes formed in said jaws and said filler blocks, said mounting posts having threaded recesses extended in from the outer ends thereof, and screws threaded into said recessesfrom the outer faces of said filler blocks, an anchor plate set into the face of said one of said resilient bodies about its mounting posts, lugs projecting from several sides of said anchor plate and set into the said face of the said one resilient body, and a right angularly bent lug extending from said anchor plate, said jaw mounting said resilient body having a hole into which said right angularly bent lug extends to hold the said one resilient body from rotating about its mounting posts as an axis.

5. In a lens adjusting tool having a pair of levers arranged in crossed relation and pivoted to each other at their crossed areas, opposed jaws on the levers on one side of their pivotal connection, said jaws being hollow and having open sides facing away from each other, filler blocks positioned in said jaws from the open sides thereof, a resilient body of a peripheral size less than the internal diameter of the lens mounting frames of a pair of eyeglasses positioned against the inner face of each of said jaws, and means fixedly mounting said bodies in position on the inner faces of said jaws and retaining said blocks in position in said jaws reinforcing the same, one of said resilient bodies being of a peripheral size slightly greater than the other resilient body, said mounting means comprising mounting posts extending from the faces of said resilient bodies facing said jaws, said mounting posts being passed into aligned holes formed in said jaws and said filler blocks, said mounting posts having threaded recesses extended in from the outer ends thereof, and screws threaded into said recesses from the outer faces of said filler blocks, and shoulder portions on said mounting posts for limiting the action of said screws in mounting said resilient bodies on said jaws.

6. In a lens adjusting tool having a pair of levers arranged in crossed relation and pivoted to each other at their crossed areas, opposed jaws on the levers on one side of their pivotal connection, said jaws being hollow and having open sides facing away from each other, filler blocks positioned in said jaws from the open sides thereof, a resilient body of a peripheral size less than the internal diameter of the lens mounta ing frames of a pair of eyeglasses positioned against the inner face of each of said jaws, and means fixedly mounting said bodies in position on the inner faces of said jaws and retaining said blocks in position in said jaws reinforcing the same, one of said resilient-bodies being of a peripheral size slightly greater than the other resilient body, said mounting means comprising mounting posts extending from the faces of said resilient bodies facing said jaws, said mounting posts being passed into aligned holes formed in said jaws and said filler blocks, said mounting posts having threaded recesses extended in from the outer ends thereof, and screws threaded into said recesses from the outer faces of said filler blocks, an anchor plate set into the face of said one of said resilient bodies about its mounting posts, lugs projecting from several sides of said anchor plate and set into the said face of the said one resilient body, and a right angularly bent lug'extending from said anchor plate, said jaws mounting said resilient body having a hole into which said right angularly bent lug extends to hold the said one resilient body from rotating about its mounting post as an axisjand a U- shaped rib mounted on the face of said one resilient body facing its respective jaw and over said first mentioned lugs for holding said anchor plate in position in the'face of the said one resilient body, said rib being extended about the sides of the jaw mounting said one resilient body forming a further means for holding the said onev resilient body from rotating.

JOHN J. GRECO.

References Cited in the file of this patent UNITED STATES PATENTS