US1978890A - Machine for assembling ophthalmic mountings - Google Patents

Description

Oct. 30, 1934- s. E. BOUCHARD 1,978,890

MACHINE FOR ASSEMBLING OPHTHALMIC MOUNTINGS Filed July 1, 1932 SAMUEL E. BOUCHARD INVENTOR is M FiG.5 4

ATTORNEY Patented Oct. 30, 1934 v MACHINE FOR ASSEMBLING OPHTHAIMC MOUNTINGS Samuel E. Bouchard, Rochester, N. Y., assignor to Bausch & Lomb Optical Company, Rochester, N. Y., a corporation of New York Application July 1, 1932, Serial No. 620,452 6 Claims. (01. 2i9 1i This invention relates to machines for assemsurface 30 by means of which the arm 12 tobling ophthalmic mountings by the application gether with jaw 19 may be raised upwardly of heat and pressure and is especially adapted against the action of spring 28. for assembling ophthalmic mountings of the type Mounted on base 10 is a suitable transformer disclosed, for exampe, in U. S. Letters Patent 31 which is connected to a source of electrical C9 Nos. 1,878,370 and 1,878,371, both issued on Sepenergy by means of wire 32. Leading out from tember 20, 1932. the transformer 31 are the two wires 33 and 34, One of the objects of my invention is to prothe first of which is connected to the arm 12 vide an efficient and improved device for assemwhile the second is connected to arm 16. Since bling ophthalmic mountings by theapplication arm 16 is mounted on the block 15, made of hard of heat and pressure. Another object is to prorubber,-fibre or the like, it is electrically insulated vide a-device having heated jaws for holding from arm 12. and heating an ophthalmic mounting and means In using the device, an ophthalmic mounting M for applying pressure to the mounting. These is placed in position between the jaws 17 and 19 l5 and other objects and advantages reside in ceras shown on-Figs. 4 and 5. The tension of spring tain novel features of construction, arrangement 28 serves to hold the jaw 19 down against the and combination of parts as will hereinafter be ,mounting M so that the latter is firmly held in more fully described and pointed out in the applace; In the ophthalmic mountings described pended claims. in my aforesaid Letters Patent the lens L is se- Referring to the drawing: cured to the mounting by means of a retaining 75 Fig. 1 is a side elevation of a machine embodyelement R which is formed of a non-metallic ing my invention. substance which is rendered plastic by heat. Such Fig. 2 is a front view of same. a mounting and lens are held between the jaws 17 Fig. 3 is a top plan view of same. and 19 with the shoes of the mounting abutting Fig. 4 is an enlarged fragmentary view illustratagainst the vertical face of the jaw 17 as shown so ing the use of the device; in Fig. 5.

Fig. 5 is a detail view showing the method of The switch (not shown) of the electrical circuit holding the lens and mounting. is then closed so that current flows through arms A preferred embodiment of my invention is dis- 12 and 16 and jaws 17 and 19 and thereby heats closed in the drawing wherein 10 indicates a base the metallic ophthalmic mounting M. This is having an integral column 11 on which the arm 12 continued until the heat renders the retaining is pivotally mountedas at 13. The column 11 element R quite plastic whereupon the switch is has an integral projection 14 on which is fixedly opened and the two plungers 20 and 22 are moved mounted a block 15 which is made of hard rubtogether, to dotted line position of Fig. 4, to grip 35 her. fibre or the like for a purpose to be herea part of the mounting and hold the parts firmly inafter described. Fixedly mounted on block 15 together until the material of the retaining eleis the arm 16 which carries a steel jaw member 17 ment has cooled and hardened. In the preferred at its free end. Adjustably secured to arm 12 by form of my ophthalmic mounting the outer lens means of screw 18 is a jaw member 19 which strap is imperforate while the inner strap has an 40 extends downwardly and forwardly at an angle aperture through which the retaining element is to the vertical as shown on Figs. 1 and 2. inserted. Hence when the plungers 20 and 22 Slidably mounted on the free end of arm 12 are brought together the top plunger 20 serves to is a plunger 20 having a finger piece 21. A simiforce the plastic material of element R into the lar plunger 22, carrying a finger piece 23, is slidopening. If the mounting has two apertured 45 ably mounted on arm 16. Coil springs 24 and 25 straps the material of element R will be comare positioned, respectively, on plungers 20 and pressed between plungers 20 and 22. The plung- 22 and tend to normally keep the ends of the ers 20 and 22 are not heated and hence when plungers separated. A slot 26 in arm 12 00- they come in contact with the mounting they operates with a pin 27 on plunger 20 to limit the serveto cool the mounting and hasten the setting 50 movement of the plunger and a similar slot and of the plastic element. The use and operation pin (not shown) limits the motion of plunger 22. of my device will be readily apparent to those A spring 28 connecting the projection 14 and arm skilled in the art. 12 tends to normally urge the arm downwardly From the foregoing it will be apparent that I to bring jaw 19 down toward jaw 17. Pivotally am able to attain the objects of my invention and 55 m d on block 5 is a lever 29 av a cam provide an improved machine for use in assembling ophthalmic mountings by the application of heat and pressure. Various modifications can obviously be made without departing from the spirit of my invention.

I claim:

1. A device of the type described comprising a base having a fixed arm, a second arm movably mounted on said base, a jaw carried by each of said arms, yieldable means for urging one jaw towards another whereby an ophthalmic mounting may be held between said jaws, electrical means for heating the mounting held by said jaws, a plunger slidably mounted on each of said arms adjacent to the jaw, said'plungers being oppositely disposed and adapted to be moved towards each other to contact with the mounting I held by the jaws and yieldable means normally urging said plungers away from each other.

2. A machine of the character described comprising a base, an arm fixedly mounted on said base, a jaw carried by said arm, a second arm movably mounted on said base, said second arm' carrying a jaw positioned to cooperate with the jaw on the first named arm to hold an ophthalmic mounting, saidjaws being electrically insulated from each other, electrical means for heating a metallic mounting held in said jaws and a pair of plungers movably mounted in opposed relation a jaw, an insulated member carried by said base,

a jaw carried by said member, a lever pivotally mounted on said member, said lever having a cam portion, yieldable means normally urging said arm into contact with said cam portion and means for supplying electrical current to said Jaws.

4. A machine of the type described comprising a base having an upright column, an arm pivotally mounted on said column, a member carried by said base, said member being electrically insulated from said base, an arm fixedly mounted on said member, means for moving said first named arm towards said second named arm, each of said arms having cooperating jaw portions for holding an object to be heated and means forsupplying electrical current to said jaws.

5. A machine of the type described comprising a base having an integral upright column, an arm pivotally mounted on said column, an insulating member carried by said base, an arm carried by said member, a jaw carried by each of said arms, means for supplying electrical current to said jaws, yieldable means for normally urging said first named arm downwardly and cam means mounted on said member for moving said first named arm against the action of said yieldable means.

6. A machine of the type described comprising a base carrying a fixed jaw, a second jaw movably mounted opposite said fixed jaw, yieldable means normally urging said movable jaw towards the fixed jaw whereby an ophthalmic mounting may be held between the jaws, means for electrically heating the mounting held between the jaws, a plunger slidably mounted opposite said fixed jaw and adjacent to the movable jaw, a coil spring surrounding the plunger and normally urging it away from the fixed jaw and stop means for limiting the movement of said plunger whereby said plunger may be selectively depressed to bring it into contact with the heated mounting held in said jaws.

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