Improvements in eye-glass frames / [Rufus Bennett Fowler].

  • Fowler, Rufus Bennett.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Improvements in eye-glass frames / [Rufus Bennett Fowler]. Source: Wellcome Collection.

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    N° 15,997 A.D. 1894 Date of Application, 22nd Aug., 1894—Accepted, 10th Nov., 1894 COMPLETE SPECIFICATION. Improvements in Eye-glass Frames. I, Rufus Bennett Fowler, of Worcester, in the County of Worcester and State of Massachusetts, United States of America, Attorney, do hereby declare the nature of my invention for Improvements in eye-glass frames, and in what manner the same is to be performed, to be particularly described and ascertained 5 in and by the following statement :— My invention relates to certain improvements in an eye-glass frame in which the nose-guard spring is attached to the outer side and central section of a rigid bridge uniting the eye-wires, and it consists in certain features of construction as hereinafter described and set forth in the annexed claims. 10 In the following description reference is made to the figures in the accompanying drawings, which show such portions of a twisting machine as embody my invention and are necessary to fully illustrate the nature of the same. Figure 1 represents a rear view of an eye-glass frame embodying my invention. Figure 2 is a top view of the same. 15 Figure 3 represents the bridge of the frame in an extended form as cut from sheet metal and before it has been bent and Figure 4 is a sectional view on line 4, 4, Figure 1. Figure 5 shows a sectional view of the bridge as represented in Fig. 4, but on a, larger scale. 20 Referring to the accompanying drawings, in which like parts are indicated by like letters of reference, A, A denotes the eye-wires and B the bridge having its ends soldered to or otherwise attached to the eye-wires and forming a rigid bridge uniting the eye-wires. The bridge B is bent into the form shown in Fig. 1, the central section 25 being bent into the form of an arch C and having the straight arms D, D extending from the central arch with their ends attached to the eye-wires. Upon the outer side of the bridge I attach a nose-guard spring E formed in a single piece and attached at its central section by a screw F to the central section of the bridge. The bridge B is offset the width of the spring E at G* Fig. 2 30 to allow the nose-guard spring to extend over the outer surface of the arched portion of the bridge with their free ends H, H curved toward each other. To the free ends of the nose-guard spring I attach the nose-guards I, I ; the nose-guards being wholly carried upon the ends of the nose-guard spring and free from any attachment to the other portions of the frame. The nose-guards I, I are preferably 35 supported by means of a metallic band J1 bent at J2, J2 and having its ends united to the free ends of the nose-guard spring by means of screws K, K ; but l do not confine myself to any particular form of nose-guard. The bridge B is cut from a strip of sheet metal in the form represented at Fig. 3, the central portion between the lines 1, 1 being bent to form the arch of the bridge. 40 Just within the lines 1, 1 the bridge is offset at G, G and at the center of the bridge its width is increased by means of a projecting wing L in order to give greater strength to the central part of the bridge which receives the screw hole F1. The wing L is turned up at right angles wdth the body of the bridge forming a 45 lip L1 against which the edge of the spring E bears in order to hold the spring from rotation on the screw F. Above the spring E, I place a rigid bar N so as to limit the bending of the spring E and cause the strain upon the spring to be received by the ends N1, N1 and thereby relieve the central portion of the spring [Price