US2033608A - Machine for assembling ophthalmic mountings - Google Patents

Description

March 10, 1936. s E, BQUCHARD 2,033,608

MACHINE FOR ASSEMBLING OPHTHALMIC MOUNTINGS Filed Aug. 50, 1934 SAE'x EUEL E. BOUCHARD WVENTOR ATTORNEY Patented Mar. 10, 1936 UNITED STATES MACHINE FOR ASSEMBLING OPHTHALNHC MOUNTINGS Samuel E. Bouchard, Rochester, N. Y., assignor to Bausch & Lomb Optical Company, Rochester, N. Y., a corporation of New York Application August 30, 1934, Serial No. 742,082

4 Claims. (Cl. 219-4) This invention relates to machines for assembling ophthalmic mountings by the application of heat and pressure and more particularly to devices for locating the mountings in the machine. The present invention is particularly adapted for machines such as the machine for assembling ophthalmic mountings, disclosed and claimed in my co-pending application Serial No. 620,452

filed July 1, 1932, since matured into Patent No.

1,978,890, dated October 30, 1934.

One of the objects of my invention is to provide an efiicient and improved device by. which ophthalmic mountings of diiierent types may be rapidly and accurately positioned and assembled by the application of heat and pressure. Other objects and advantages reside in certain novel features of construction, arrangement and combination of parts as will hereinafter be more fully described and pointed out in the appended claims.

Referring to the drawing:

Fig. 1 is a side elevation of a machine embody ing my invention.

Fig. 2 is a front view of same.

Fig. 3 is a detail view showing my invention in use with one type of ophthalmic mounting.

Fig. 4 is a detail View showing my invention in use with another type of ophthalmic mountmg. 7

Fig. 5 is a detail view showing one form of improved positioning member.

Fig. 6 is a section taken on line 6-6 of Fig. 5.

One embodiment of my invention is shown in the drawing in which III indicates a base having an integral arm H upon which an arm [2 is pivotally mounted as at [3. The column II has an integral portion l4 upon which is fixedly mounted a T-shaped block l5 which is made of hard rubber, fiber or the like for a purpose to be hereinafter described.

Flxedly mounted upon the block I5 is an arm l6 which carries a bearing member I! upon which is mounted a multiple jaw IS. The multiple jaw l8 has a plurality of plane, work supporting surfaces is, and a limiting disk 20 perpendicular to the work supporting surfaces IS. A plurality of positioning slots 2!, 22, 23 and 24 are formed in the limiting disk 20, each slot cooperating with a particular work supporting surface for positioning the work. The slots 2| and 24 are located substantially centrally of their respective cooperating supporting surfaces IS, the former for positioning the end pieces or bridges of conventional mountings 25 such as shown in Fig. 3, while the latter is used for positioning conventional studs. The slots 22 and 23 are positioned away from the center of their respective cooperating supporting surfaces [9 for positioning respectively the left and right hand end pieces for high temple mountings 26 such as shown in Fig 4. A leaf spring 21 carries a pin 28 for engaging one 5 of the locking holes 29 in the multiple jaw 18 for holding the jaw in desired position. An enlarged head 30 permits the operator to withdraw the pin when it is desired to bring a different slot into operative position. Adjustably secured to the arm l2 by means of a screw 3i is a jaw member 32 which extends downwardly and outwardly as shown in Figs. 1 and 2 and serves to clamp the mounting against the multiple jaw l8.

Slidably mounted on the free end of thearm I2 is a plunger 33 having a finger piece 34 urged upwardly by a coil spring 35. A conducting arm 36 mounted on the block [5 and insulated from the arm 16, carries a conducting screw 31 below and in direct alignment with the plunger 33 said screw 31 further supporting the ophthalmic mounting. A spring 38 connecting the projection l4 and arm l2 tends to normally urge the arm downwardly to bring jaw 32 down toward multiple jaw l8. Pivotally mounted on block I5 5 is a lever 39 having a cam surface 40 by means of which the arm l2 together with the jaw 32 may be raised upwardly against the action of the spring 38.

Mounted upon the base 10 is a suitable transformer 4| which is connected to a source of electrical energy by means of a wire 42. Leading out from the transformer 4| are two wires 43 and 44, the first of which is connected to the arm l2 while the second is connected to the arm 36. Since arm 36 is mounted upon the block l5, made of hard rubber, fiber or the like, it is electrically insulated from both arm l2 and arm I 6.

My device is intended for use in assembling rimless ophthalmic mountings of the type shown having a pair of lens engaging straps 45, 46, a shoe 4'! engaging the edge of the lens and a connection 48 extending outwardly from the shoe 41. This connection may be either the bridge or the temple connection as the procedure is the same for either. In Fig. 4 a type of connection is shown for the high temple end pieces where the temples are located above the eye level.

In using the device, the pin 28 is withdrawn from the hole 29 and the multiple jaw 18 rotated 50 until the desired slot is in operative position. The pin 29 is then inserted in the hole 29 and the multiple jaw ll locked against rotation. An ophthalmic mounting, for example 25. is then placed in the machine with the strap 46 resting upon the supporting surface l9 and the conducting supporting screw 31, the shoe pressed against the limiting member 20 and the connection 48 held in the positioning slot 2!. The lever 39 is then lowered and the mounting is firmly clamped between jaw 32 and the multiple jaw l8. A fusible plug is then inserted in the mounting, the mounting is heated and the plug forced into the mounting to securely hold the lens in the mounting as fully set forth in my aforesaid co-pending application.

In assembling the mounting the plug may be of any suitable material such as a plastic cellulosic material or a metal or metal alloy of relatively low melting point. When a metallic plug is used, the jaw 32 can be omitted and the heating current passed through the plunger 33, the plug and the screw 31 while the mounting is held in the multiple jaw by hand. In such a case the arm l2 could be fixed to the block IS. The multiple jaw I8 is shown as having a. plurality of surfaces l9 rotatable with the disk 20 but obviously the disk 20 could be rotatable with respect to a single surface l9 and still perform its function in the same way. Obviously also the disk 20 could as well be a slidable slotted plate.

From the foregoing it will be apparent that I am able to attain the objects of my invention and provide an improved device for assembling ophthalmic mountings by the application of heat and pressure and an improved device for locating the mountings therein. Various modifications can obviously be made without departing from the spirit of my invention.

I claim:

1. In a device for attaching ophthalmic mountings, a pivoted guide member having a plurality of plane mounting supporting surfaces parallel to its pivotal axis, a plane surface extending perpendicularly beyond each of said plane supporting surfaces and a radial slot in each of said plane surfaces extending from the peripheral edge of the plane surface to said plane supporting surface.

2. In a device for attaching ophthalmic mountings or the like, a rotatably mounted supporting member having a plurality of plane, angularly related supporting surfaces disposed about its periphery in planes parallel to its axis of rotation, a disk fixed to said member and having a plane surface perpendicular to the axis of rotation adjacent said member and extending beyond said member on all sides, guide slots in said disk extending from the periphery of the disk perpendicularly to some of the supporting surfaces of said member, said slots being of different size and position to accommodate different types of articles, means for rotating said member and said disk to bring the selected supporting surface and slot into operative position, and means for securing said member and said disk in the selected position.

3. In a device for attaching ophthalmic mountings which have spaced, lens engaging straps, a shoe for contacting with the edge of a lens and a connection extending outwardly from the shoe,

a positioning means comprising a supporting member adapted to support a strap, a movably mounted limiting member having a shoe engag ing surface adjacent said supporting member and perpendicular thereto, said limiting member being provided with a positioning slot for a connection,'means for adjusting said movable member to accommodate connections positioned at different angles to the shoe and means for fastening said movable member in adjusted position.

4. In a device for attaching ophthalmic mountings which have spaced, lens engaging straps, a shoe for contacting with the edge of a lens and a connection extending outwardly from the shoe, a positioning means comprising a rotatably mounted element having a plurality of angularly related strap supporting faces in planes parallel to the axis of rotation, a shoe limiting member for each supporting face and perpendicular thereto, a connection positioning slot in each limiting member perpendicular to the supporting surface, some of said slots being positioned to accommodate high temple connections, meansfor rotating said element for selecting the face, member and slot for the particular Work and means for locking said element in selected position.

SAMUEL E. BOUCHARD.

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