US1922766A

US1922766A - Ophthalmic mounting

Info

Publication number: US1922766A
Application number: US640906A
Authority: US
Inventors: Hurwitz Samuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-11-02
Filing date: 1932-11-02
Publication date: 1933-08-15
Anticipated expiration: 1950-08-15

Description

S. HURWlTZ OPHTHALMI C MOUNT ING Aug. 15, 1933.

Filed Nov, P, 1932 2 Sheets-Sheet 1 [nuenloy 54772146! Hurwz'fz Aug. 15, 1933. s. HuRwlTz 1,922,766

OPHTHALMIC MOUNT ING Filed Nov. 2, 1952 '1 2 Sheets-Sheet 2 Inventor Samud Hurwiiz Patented Aug. 15, 1933 PATENT OFFICE UNITED STATES 2 7 Claims.

This invention relates to improvements in ophthalmic mountings and has particular reference to an improved end piece and temple connection for such mounting.

The invention together with its numerous objects and advantages will be best understood from a study of the following description, taken in connection with the accompanying drawings wherein:

Figure 1 is a plan view of an ophthalmic mounting embodying the features of the present invention.

Figure 2 is a front elevational view of a portion of the mounting showing the end piece applied thereto.

Figure 3 is a sectional view taken substantially on the line 3-3 of Figure 1.

Figure 4 is a view taken at right angles to Figure 3.

Figure 5 is a perspective view showing the several detached parts of a mounting embodying the invention. a

Figure 6 is a sectional view taken substantially on the line 6-6 of Figure 3.

Referring by reference numerals to the drawings 5 designates generally the ophthalmic mounting, the lens rim of which are designated by the reference numerals 6, and in accordance with the present invention each lens rim is provided with end pieces '7, 8 which form a separable joint to allow the lens rim to be opened for replacing the lens. The

end pieces

7 and 8 are externally threaded as at 9 and have flat inner or meeting faces which are grooved as at 10. One of the end pieces, for example the end piece 7 has fixedly secured within one end of its groove 10 a longitudinally disposed pin or projection 11 for engagement in. the groove 10 of the other end piece in this instance the end piece 8 for retaining the end pieces '7 and 8 against lateral displacement relative to one another when the fiat faces of the end pieces are brought together, as when closing the rim about the lens. Preferably and as shown, the end pieces '7 and 8 are tapered.

A sleeve or post 12 is also, in the present instance of conical form and is adapted to receive the

end pieces

7 and 8, the post 12 at the largest end thereof being provided with internal screw threads 13 mating with the threads 9 so that the post or sleeve 12 may bereadily screwed onto the

end pieces

7 and 8.

To secure the sleeve or post 12 in screw threadv ed engagement with the

end pieces

7 and 8, there is provided a locking bolt 14-. that is adapted to extend through oppositely disposed apertures 15 provided in the post or sleeve 12 and adapted to register with openings 16 provided in the

end pieces

7 and 8. One aperture 15 of the sleeve 12 is preferably threaded and the bolt 14 as shown in Figure 6 has a threaded end screw threadedly engaged with said aperture of the sleeve 12.

Adjacent its smallest end the post or sleeve 12 is provided with spaced lateral apertured ears 1'? to which is pivoted as at 18 one end of a temple 19.

From the foregoing it will be apparent that when it is desired to open a rim 6 it will not be necessary to disturb the connection between the post 12 and the temple 9, the opening of the rim 6 being readily effected by first removing the bolt 14 and then unscrewing the, sleeve or post 12.

Likewise, the temple 19 may be readily disconnected from the post or sleeve 12 without disturbing the position of the post 12 on the end pieces '7 and 8 it being only necessary to remove the pivot 18 as is self evident. It is also apparent that by having the

end pieces

7 and 8 tapered, the ends of the rim 6 will be drawn close together when the sleeve or post 12 is screwed onto said ends '7 and 8.

Even though I have herein shown and described the preferred embodiment of the invention, it is to be understood that the same is susceptible of further changes, modifications and improvements coming within the scope of the appended claims.

Having thus described my invention, what I claim as new is:

1. In an ophthalmic mounting, the combination with a split lens frame having projecting tapered ends at the split, each of said ends being provided on one face with screw threads, and on the face opposite to the screw threads one of said end pieces being provided with a longitudinal groove, and the other of said ends being provided with a substantially cylindrical projection extending longitudinally of said end and engaging the groove in the first named end; a tapered internally threaded member engaged with said tapered ends and provided on one side thereof with a countersunk opening, and on a relatively opposite side with a screw threaded aperture, and a retaining bolt extending transversely 105 through said end and having a head engaging in the countersunk opening of said tapered member and a screw threaded end screw threadedly engaged in the threaded opening of said tapered member to lock the latter against relation relative groove in the first named end, a sleeve member fitting said tapered ends, and a retaining bolt extending through openings in the sides of said sleeve and in said ends, one end of the bolt having screw threaded engagement with said sleeve, and a temple pivotally connected with said sleeve.

SAMUEL I-IURVVITZ.