US139353A

US139353A - Improvement in eye-glasses

Info

Publication number: US139353A
Authority: US
Publication date: 1873-05-27
Anticipated expiration: 1890-05-27

Description

UNITED STATEs PATENT OFFICE. y

ARTHUR D. ANsELL, OE HARTFORD, CONNECTICUT, AssIGNOR To LAZA- RUs, MOsEs a CO., OE NEw YORK, N. Y.

IMPROVEMENT IN EYE-GLASSES.

Specification forming part of Letters latent N0. 139,353, dated May 27, 1873,' application tiled February 17, 1872.(

To all Vwhom it may concern:

Be it known that I, ARTHUR D. ANsELL, of Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Eye-Glass, of which the following is a specification:

Figure l represents a side View ot' my improved eye-glass, showing it opened. Fig. 2 is a face view of the same, showing it closed. Fig. 3V is a detail transverse section on an enlarged scale of the spring attachment to eyeglass frame, the line c c, Fig. 2, indicating the plane of section.

-Similar letters of reference indicate corresponding parts.

The object of this invention is to improve the arrangement of springs on an eye-glass so Vas to obtaina firm hold ou the nose and bring the diameters of the lenses in line with each other when they are worn.

The invention consists in connecting the glass-frames with the bridge by suspensionsprings, so that the use of pillars, clasps, or spiral springs will be dispensed with, and so that the points of said springs will hug the glass-frames when the latter are closed.

AA in the drawing are the two eye-glass frames, made of oval or other suitable form. B B are the suspension-springs. (l is the bow-spring. The bow-spring has its two ends joined to the suspension-springs in the ordinary or suitable manner and carries the nosecushions a a, as shown. The suspensionsprings have their outer ends secured to the eye-glass frames, either on top, bottom, or inner ends of latter. They are shown to be attached to the upper ends of eye-glass frame. The lower ends of the suspension-springs and the nose-cushions are thus quite free to expand or contract, not being secured to the frames. In ordinary eye-glasses the lower or inner ends of the springs are rigidly attached to the frames, which throws the entire expansive power on the bow-spring. By my arrangement of forming the open and yielding prongs the strain will be equally borne by all three springs, and a consequent firmer be secured in the ordinary or suitable man-n` ner, I prefer to fasten them as shown in Fig. S-that is to say, to tit the ends of the spring into a groove of the supportingeblock d of the frame A, and hold it down by a nut,e, screwed to a pillar, f, which projects from the block d. This dispenses with the ordinary screw, and allows the block d to be made quite fiat, as shown. The pillar is formed in one piece with the block d.

Having thus described my invention, I `claim as new and desire to secure by Letters Patent- The re-enforcing suspension-sprin gs B B, attached to glass-frames at one end and to bowspring at the other, as and for the purpose described.

A. D. ANSELL. Witnesses:

SOL. ZEMLANsKY, T. MYERS;