US816997A - Gem-setting. - Google Patents

Description

PATENTED APR. 3, 1906. A. POLLARD.

GEM SETTING.

APPLICATION FILED NOV. 25. 1904.

' rmrrn GEM-SETTING.

Specification of Letters Patent.

Patented April 3, 1906.

Application filed November 25,1904. Serial No. 234,298.

To all whom it may concern:

Be it known that I, ALBERT POLLARD, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Gerri-Settings, of which the following is a specification.

My invention relates to improvements in gem-settings and the object of my invention is to provide a gem-setting having a concave seat and suitable retaining-prongs, all made from the same piece of stock and by a single operation.

This object is attained by the setting shown in the accompanyin drawings, in which- Figure 1 shows a inished. brooch composed of a series of my improved settings; Fig. 2, a blank from which the brooch is struck; Fig. 3, a top view of the same blank after the settings are made, showing one gem set; Fig. 4, a section through as m of Fig. 3; Fig. 5, a cross-section through y y of Fig. 4 Fig. 6, a crosssec tion of a brooch through the gem; Figs. 7 and 8, a plan and sectional view of the die; and Figs. 9 and 10, a side and end view, respectively, of the plunger or tool.

The same parts are designated by the same letters throughout the different views.

A, Fig. 2, is the blank from which a brooch is made, composed of any suitable metal. In the finished brooch the edges are bent downward, as shown at A, Figs. 1 and 6.

b b are perforations'having their margins a depressed and slightly coneaved, as seen best in the sectional views Figs. 5 and 6.

b b are the retaining-prongs struck upward from the blank A, leaving the slots 1) l) communicating with the perforations b, as seen in Fig. 3.

C is a gem set in the setting and retained securely in place by the bending in upon it of the retaining-prongs 11 Fig. 7 is a plan of the die by which the setting is made, and Fig. 8 a cross-section through c 2 of Fig. 7. d is the fiat surface of the die, perforated with a circular hole e and the radial connecting-sl0ts e e The portion of (1 immediately surrounding c is raised and convexed or chamfered, as shown in Fig. 8, to form the concavity of the setting.

The plunger (1 is shown in Figs. 9 and 10, representing side and end views, respectively, d is provided with the cylindrical member f, fitting the perforation c in the die, and the wingsf f, adapted to enter the radial slots 0 e of the die.

The blank A is placed flat on the die, and the plunger descending perforates it, making the hole b and leaving the margin concaved by means of the raised and convexed edge of the die adjacent to the hole e. At the same time the wings f force downwardly into the slots 0 c portions of the blank forming the prongs I) 5". The entire setting is thus made by a single stroke of the plunger.

My setting, it is obvious, is adapted to a single stone, as a solitaire, or for use as a clus ter in any desired shape or design.

No soldering is necessary or any subse quent operation excepting the bending of the retaining-prongs after the gem is inserted.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is

1. A gem-settin comprising a sheet of metal having a perforated concave seat with edges projecting beyond the face of the sheet on one side and integral prongs projecting beyond the opposite face of the sheet.

2. An article of jewelry comprising a body portion of relatively thin material formed. with sockets therein, the bottoms of the sockets being pressed away from the reverse surface of the article, forming protuberances thereon and jewels set in the sockets, portions of the material on the face or front sideof the article being crowded over portions of the jewels.

In testimony whereof I afIiX my signature in presence of two witnesses.

ALBERT POLLARD.

Witnesses: I

FLORENCE E. BATES, Roscoe M. DEXTER.

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