US1031684A - Spectacles. - Google Patents

Description

N. BOURQUIN. SPEGTAGLES.

APPLICATION FILED SEPT. 1, 1909.

1,031,684. Patented July 9,1912.

Nzz/iza Fizz/712127,

nvantoz COLUMBIA PLANOGRAI'H co, WASHINGTON, n c.

" UNTTED fiTATES- NUMA BOURQUIN, OF READING, PENNSYLVANIA, ASSIGNOR, BY .MESNE ASSIGN- MENTS, T0 T. A. WILLSON & COMPANY, INCORPORATED, OF ,HEADING, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

SPECTACLES'.

Specification of Letters Patent.

Patented July 9, 1912.

Application fi1ed. September 1, 1909. Serial No. 515,654.

To all whom it may concern:

' Be it known that I, NUMA BOURQUIN, a citizen of the United States, and a resident of the city of Reading, in the county of Berks and State of Pennsylvania, have invented certain new and useful Improvements in Spectacles, of which the following is a specification.

This invention relates particularly to spectacle temples in which the wire shaft portions are provided with separatelyformed sheet-metal pivot pieces adapted to connect with the temple-joint ends, such as is shownin Patent No. 8 11,? 55, issued January 22, 1907, to T.A. Willson.

The main object of the present invention is to secure in connection with the cheapness of production enabled by thus empl0ying sheet-metal, an improved effect as to appearance and service heretofore attained only in more expensive constructions; and to this end it consists in employing a substantially rectangular sheet metal blank folded throughout its length, with a sharp bend to form the flat pivot-ear portion, and with a cylindrical bend to form the shank or shaft-attaching portion; the pivot ears being thus rigidly connected to each other and to the shank portion, and the formed device having substantially the strength and appearance of a machine finished fitting.

The invention is fully described in connection with the accompanying drawings and the novel features are specifically pointed out in the claims.

Figure 1 shows my finished temple applied to the temple-joint end of a spectacle frame, said end being indicated in dotted lines. Fig. 2 is a view of the same taken at right angles to Fig. 1. Fig. 3 shows a sheet metal blank or punching from which my improved temple pivot-piece may be formed as indicated in Figs. 4; to 7.

The temple-joint end 2 is of well-known form comprising a perforated jaw portion 3 for the reception of the temple pivotpiece and the pivot pin connecting the same, and provided with a stop 4 for limiting the swing of the temple. The latter comprises as usual a shaft portion 5 the end of which is adapted to engage said jaw and pivot pin. Heretofore this temple end has been made integral with the shaft in some cases, while in others it has constituted a separately formed part secured to the shaft; and in the latter construction it has either been machined out of the solid or formed from sheet metal. While the sheet-metal construct-ion permits of a considerable reduction in labor cost the resulting product has heretofore been less satisfactory, particularly in appearance, than the more expensive integral or machined-end constructions, and the purpose ofmy invent-ion is to practically overcome this objection while retaining the advantage of. cheapness attained by employing sheet-metal. This I have accomplished in a simple but effective manner as will now be specifically described-in connection with the drawing, the result attained being a close approximation in general characteristics and appearance to the more expensive machined product.

The sheet-metal punching or blank indicated in Fig. 3 is a substantially rectangular plate having side extensions 10 10 at the pivoting end to provide for the pivot apertures 14:, while the shank end is of sufiicient width only to form a shaft-inclosing cylinder when folded so as to bring the sides 11 11 to abutting position. The blank is left solid between the pivoting ear apertures 14, and in forming the pivot piece the blank is folded or bent throughout its whole length on the middle longitudinal line thereof; the shank portion being bent in curves to the cylindrical form 11 as shown, while the other half of the length of the blank is sharply bent on the middle dotted line shown in Fig. 3 so as to form the fiat doubled-plate pivoting portion 10, with a solid junction 12 between the differently bent portions. The parallel plates 10 10 being united at the sharp bend of the blank, the appearance and strength of a pivot piece formed out of the solid is approximately secured; but to give better form to the finished device, and for the purpose of bringing the pivot apertures more nearly into alinement with the shaft axis 1515 of the shank portion, the formed piece is bent at the junction 12 in the planeof the flat pivoting portion 10, as indicated in Fig. 5, the point 16 which is thus apt to be swung unnecessarily beyond theaxial line 1515, being beveled oi? as indicated in Fig. 6, if desired.

. l/Vhat I claim is 1. A spectacle temple comprising a separately formed pivot piece made from an approximately rectangular sheet metal blank having pivot ear extensions, said blank being folded throughout its length on a middle longitudinal line with a sharp-bend extending approximately one-half the length of theblank to form a fiat double-plate pivoting portion, and with a cylindrical bend of the other half of the blank to form a shaftinclosing portion. I v 2. A spectacle temple comprising a separately formed pivot piece made from an approximately rectangular sheet metal blank having pivot ear extensions, said blank being folded throughout its length on a middle longitudinal line with a sharp-bend extending approximately one-half the length of the blank to form a flat doubled-plate pivoting portion, and with a cylindrical bend of the other half of the blank to form a shaftinclosing portion, the formed piece being bent at the junction of said portions in the plane of the fiat pivoting portion.

3. A spectacle temple comprising a separately formed pivot piece made from an ap proximately rectangular sheet metal blank having pivot ear extensions, said blank being folded throughout its length on a middle longitudinal line With a sharp-bend extending approximately one-half the length of the blank to form a flat doubled-plate pivoting portion, and with a cylindrical bend of the other half of the blank to form a'shaftinclosing portion, the formed piece being bent at the junction of said portions in the plane of the fiat pivoting portion and the outer corner of the latter being beveled.

In testimony whereof, I afiix my'signature, in the presence of two witnesses.

' i NUMA BOURQUIN.

Witnesses: 1

D. M. STEWART, W. G.- STEWART.

Copies of this vpatent may be obtained for five cents each, by addressing the Gommissionerof Patents, I

Washington, D. G3

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