US1479842A

US1479842A - Ring construction

Info

Publication number: US1479842A
Application number: US600540A
Authority: US
Inventors: John A Sweitzer
Original assignee: Powers & Mayer Manufacturing Corp
Current assignee: Powers & Mayer Manufacturing Corp
Priority date: 1922-11-13
Filing date: 1922-11-13
Publication date: 1924-01-08
Anticipated expiration: 1941-01-08

Description

- Jan. 8, 1924. 1,479,842

J. A. SWEITZER v RING CONSTRUCTION Filed Nov. 15 1922 fi'y. 1 Hg. 2.

awvemto'a Patented Jan. 8, 1924.

UNITED STATES PATENT OFFICE.

JOHN .A. SWEITZER, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO POWERS 8c MAYER MANUFACTURING CORPORATION, OF PROVIDENCE, RHODE ISLAND, A.

CORPORATION OF RHODE ISLAND.

RING CONSTRUCTION.

Application filed November 13, 1922. Serial No. 600,540.

To all whom. it may concern:

Be it known that I, JOHN A. Swnrrznn, a citizen of the United States of America, residing at Providence, county of Providence,

State of Rhode Island, have invented certain new and useful Improvements in Ring Constructions, of which the following is a specification.

This invention relates to finger rings and 10 other jewelry, and in particular to the manufacture and setting of crowns embodying finely pierced designs.

In rings, especially of the more decorative variety, that is those having a crown or head-piece, the design of which comprises fine or lace-like piercings, where the design is applied on the formed crown there can be no quantity production. My improved method however, in which a piercing die is used to produce the design in a piece of flat stock which is subsequently formed into the crown, provides not only for quantity production, but design work that approaches that done by hand.

A particular object of the invention is the production of rings in quantity having very fine fancy pierced designs, which at the present time is not feasible without the ultimate use of hand tools which increases the cost of manufacture. A further object of the invention is the production of a crown, first by stamping the design out of a fiat piece of stock, and then shaping it so that it may be suitably attached to the shank of the ring or other mounting, barpins, etc.

A further object is to form a ring shank, and also a crown to fit .the same, each out of a single piece of stock, a part of the shank being pierced and spread to form a support for the crown. A further object-is to provide a ring, the manufacture of which requires but a single soldering operation.

Referring to the accompanying drawing, in which one embodiment of my invention is illustrated, but to which particular shape and design I do not wish to be limited,

ldig.v 1 is an enlarged side View of the shank of a ring constructed in accordance with my invention;

Fig. 2 is an enlarged edge view of the shank as seen in Fig. 1;

Fig. 3 is an enlarged top plan view of a piece of flat stock, in which has been pierced a fancy design, as by a suitable die;

Flg. 4 is an enlarged side view of the crownand ring shank assembled, the crown comprising the piece of fiat stock illustrated 1n F 1g. 3 after the same has been formed to sha e; and

ig. 5 is an enlarged top plan view of the finished crown.

Referring to the drawing in detail, 5 indlcates a ring shank which is preferably made of one piece of stock and which at its upper portion is spread as at 6 or otherwise formed to produce a base upon which rests the crown member 7.

In order to form the head or crown member 7, a piece of fiat stock (platinum, for instance) is stamped out by a piercing die having a suitable design and which forms a cen tral setting opening 8. The resulting product is a flat plate having the desired design pierced therethrough as in Fig. 3. Then this pierced plate is placed in a forming die which shapes it into any desired conformation, and it is then soldered to the ring shank at the two points 9.

The blanks can be pierced and formed in quantity and no hand tooling is necessary. When a die is used for the piercing operation on flat stock, the material can be much thinner and lighter than when the piercing is done by hand on the crown already shaped, as in the latter case a thicker crown material is necessary in order to withstand the ressure of the tool, and furthermore by my improvement finer piercing can be accomplished and hence more beautiful designs produced than has heretofore been possible in uantity production.

hat I desire to secure by Letters Patent 18 1- I ,;a

-1. The method of forming a ring or the like having an ornamented crown portion which consists in first punching out a flat crown piece to form therein a pierced design,

crown piece to form therein a pierced design, then shaping the same with a forming die into an arcuate crown or head, and then securing the same to a ring-shank or the like by a single soldering operation.

1 having an arcuate recess therein, punching a enses crown portion from a piece of flat stock, shaping said crown portion into arcuate form, and securing said arcuate crown p rtion in position in said' ring shank recess.

5. An article of jewelry comprising-a ring- 20 shank having a portion pierced and. spread to form a crown support, and an arcuate crown secured to Said support. i

6. Jihe method of forming a ring or the like which consists in forming a ring shank, piercing and spreadinga part of said shank to form a support for a crown, and securing a crown in said support.

JOHN A; swnrrznn.