US17137A

US17137A - Island

Info

Publication number: US17137A
Authority: US
Publication date: 1857-04-28
Anticipated expiration: 1874-04-28

Description

UNITED sTATEs PATENT oEErcE.

CHARLES G. BLOOMEiR, OF WICKFORD, RHODE ISLAND.

CONSTRUCTING LOCKETS, &c.

Specification forming part of Letters Patent No. 17,137', dated April 28, 1857; Reissued November To all 'whom t may concern.'

Be it known that I, CHARLES G. BLooMER, of Wickford, in the county of Vashington and State of Rhode Island, have invented a new and useful Improvement in the Manufacture of Lockets; and I hereby declare the following to be a full and exact description thereof, reference being hadto the accompanying drawings and to the letters of reference marked thereon.

`Lockets are formed of two halves or sides, substantially alike, connected by a hinge, held shut by a spring catch, and suspended by a metallic ringlet passed through a stud or knob, so as commonly to resemble in material, form and finish, a gold-watch-case.

The base of each side is a rim, to which is fitted the plate that forms the outer case or back. This rim y is made by uniting two rings of dierent sized and different shaped wires.

Figure A, represents an exterior ring, a

j section of the wire is shown at a, a, and the joint where the ends are soldered at a.

Fig. B, shows the inner ring; I), b, a section of the flat wire of which it is made,

and b the soldered joint.

Fig. C, shows the rings united and forming a rim.7 The section of the compounded wire being as represented at c, c, in one rim, and slightly varied in the other as circumstances may require. The object in thus combining al flat ring with the exterior one is to acquire a suitable recess or bed-plate for receiving the glass and its setting. The inner ring is known in the trade as the field-piece. It will be perceived that in thus making the two rims of a locket there are six distinct soldering processesthe ends of the four wires being thus united, and the two inner rings soldered into the outer ones. Such is the come mon mode of manufacturing rims of lockets in both Europe and America. Now, in my improvement I dispense with these siX soldering processes and produce at less cost, and in every respect, a better and more artistic article of jewelry.

the forms which a plain piece of metal puts on in the various dies. The jointed ends of the two rings of wire is shown at C.

No. l, shows a planchet as rst stamped out of a sheet, and the figure Z below a section. No. 2. The next form it is made to assume is shown in plan; and in. section at e. In No. 3, the field-piece is developed and the rim for one side of a locket completely formed. See the section at f. In No. 4, the position of the field piece is slightly varied, and the rim for the other side of a locket completely formed. See the section at g. In No. 5, the two rims are united by the joint, and in No. 6, the complete locket is represented.

I am aware that sheet metal has been struck up into variousy forms, through series of dies, and for various purposes but neither the principle nor the process has been employed to the formation of the rims of lockets, probably because of the supposed impossibility of working plated stock of jewelers into the diticult form required, at the same `time increase by accumulation the thickness of the metal at certain parts to two or three times that of the planchet.

I therefore claim as a new and useful contribution to this depart-ment of the arts 1. The making of locket rims out of single pieces of metal instead of two or more which are everywhere used.

2. I claim the making of them out of sheet metal insteadof wire, and

3. I claim the making of themsubstantially in the manner herein described.

CHARLES G. BLOOMER.

Attest:

GEO. T. NICHOLS, EDWIN MONTGOMERY.

[FIRST PRINTED 1912.]