US653931A - Eyeglasses or spectacles. - Google Patents

Description

m. 653,93l. Patented my I7, I900.

a. LUWRES. EYEGLASSES 0R SPECTACLES.

(Application filed Apr. 7, 1900.) (No Model.)

WiTNESSES:

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ATTORNEYS an. vnmurna. WASHING NlIED STATES PATENT Orrrcn.

GEORGE LOWRES, OF NEWARK, NEW JERSEY.

EYEG LASSES OR SP ECTAGLES.

SPECIFICATION forming part of Letters Patent No. 653,931, dated July 17, 1900.

Application filed April 7, 1900.

T0 aZZ whom it may concern:

Beit known that I, GEORGE LOWRES, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Eyeglasses or Spectacles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanyin g drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to prevent the undue reduction of the tensile strength of the eye-wire of an eyeglass or spectacles because of the removal of material from certain parts of said wire when the same is being subjected to the filing and polishing operations.

It is well known in the art of manufacturing eyeglass and spectacle frames, particularly those made from gold, that to save material and give greater neatness of appearance the wire is made very light or of little thickness in cross-section, and thus should the wire be reduced further in thickness there is great danger of breakage. The undue reduction of metal has been frequently effected heretofore at the angles formed at the outer ends of the reinforcing piece or pieces upon which the handle, clips for the nosepiece, and similar appendages of the eye-wire have been seated. These applied pieces have been cut square oif at their outer ends, and thus in finishing the frame the filing or polishing tools employed in such operation have been stopped from moving lengthwise of the frame by the square-cut shoulders, and the transverse polishing movements being continued the metal in the angle has been removed to such an extent as to render the frame objectionably weak, the removal of metal taking place by both the filing and polishing operations directly across the surface of the wire,from edge to edge thereof. In my improved construction I oppositely bevel the ends of the reinforcingpieces, so that the bristles of the brush and the edges of the file caught in the angle when the brush is rotating or the file Serial No. 11,936. (No model.)

is reciprocating at right angles to the wire will not so directly tend to reduce the metal in the direct transverse line, and thus form a very thin transverse part which will not withstand the tensile strain upon the wire.

Referring to the accompanying drawings, in which like letters of reference indicate cor responding parts in each of the several views, Figure l is a plan of a portion of a spectacle or eyeglass frame. Fig. 2 is an end view of the same. Fig. 3 is a side view. Fig. 4. is a section taken longitudinally through the wire on the center line indicated in Fig. 2, and Fig. 5 is a perspective View of the said portion.

In said drawings, a indicates the eye-Wire, b the appliance-such as the clip for an earwire, nose-piece, handle, or the like and c is a reinforcing piece or pieces soldered upon the outer face of the eye-wire and upon which the said appliance is seated or supported and by whichthe strain of said appliance is distributed over a considerable length of eyewire. At the outer ends, away from said appliance, the reinforcing-piece forms a shoulder d, Figs. 1 and 4:, and this shoulder is not at right angles to the longitudinal line of the eye-wire, but is inclined thereto, as indicated in Fig. 2, so that the polishing-bristles will not tend to crowd into the angle and remove the metal to form a weak transverse part extending directly from edge to edge, as before described.

- In Fig. 2 the shoulder cl is shown to be bev eled or inclined oppositely, the inclines e e extending from a point at the longitudinal center of the wire inward or backward to the opposite edges of said wire. Thus the extra abrasion of thewire due to the shoulder is distributed over a considerable area in the length of the wire, and as a result the tensile strength of the wire is not materially reduced, as will be understood.

I do not wish to be understood as limiting the inclines to straight lines, as the lines of the shoulder may be convexly curved vor rounded in plan or otherwise shaped to effect the same result.

Having thus described the invention, what I claim as new is 1. In an eyeglass or spectacles, the combination with the eye-wire, of a reinforcing nation With the eye-Wire, of a reinforcing piece, providing a seat for the end piece and at its end away from said seat having the edges beveled or inclined to the longitudinal center line of the eye-wire, substantially as IO set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 30th day of March, 1900.

GEORGE LOWRES. Witnesses:

CHARLES H. PELL, G. B. PITNEY.

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