US162586A - Improvement in modes of inlaying jet with metal - Google Patents

Description

Patented Aprn 27.1875.

' mvlsnon:

-sY f momma W. STEPHANS.

Mode of Inlaying let with Metal.

No.162,58.A

WITNESSES m '.NITED STATES WILLIAM STEPHANS,

OF NEV YORK, N. Y.

IMPROVEMENT IN MODES OF INLAYlNG JET WITH METAL.

Specification forming part of Letters Patent No. 162,586, dated April 27, 1875; application filed October 31, 1874.

To all whom it may concern:

Be it known that I, WILLIAM STEPHANs, of the city, county, and State of New York, have invented a new and useful Improvement in Mode of Inlaying Jet with Metal, of which the following is a specification:

Figure 1 is a top view of the lower or female die for cutting ont the metal plate to be inlaid in the jet. Fig. 2 is a detail section of the lower or female die, taken through the line 5v fr, Fig. l, showing the male die in side view, and the metal plate in position to be operated upon. Fig. 3 is a detail section of the jet and'of the guard-plate, and the die for recessing the jet. Fig. 4 is a detail crosssection of the recessing-die, taken through the line y y, Fig. 3. Fig. 5 is a top view of the guard-plate. Fig. 6 is a detail cross-section of the recessed jet, taken through the line z c, Fig. 8. Fig. 7 is an edge View of the plate to be inlaid, shown as having the screwpin attached. Fig. 8 is a top view of the recessed jet. Fig. 9 is the same view as Fig. 6, but showing the inlaid plate and a stud-shank applied to the jet.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved mode of inlaying metal in jet, for studs, buttons, pins, and other articles of jewelry, by means ot' which irregular and complex forms may be inlaid in jet, and which will enable the work to be done quicker and neater than is possible when done in the old Way.

'lhe invention consists in the mode of inlaying jet with metal, hereinafter describedthat is to say, by burning a recess of the proper size and form in the jet, by means of a recessed die and a sheet metal guard-plate, as set forth.

A represents the lower or female die, in which is formed an opening ofthe exact form of the metal piece to be inlaid in the jet. B is the upper or male die, which is made of the exact form of the opening in the die A. C is the metal plate from which the piece to be iilaid is to be cut. D is the die with which the recess is to be formed in the jet. The outline of the die D is the same as that ot' the die B, but its face has recesses dl formed in it, from which holes or openings d2 lead out through the sides ot' the die D, as shown in Figs. 3 and 4. E is a plate of thin sheet metal, having a hole formed through it of the exact form ot' the die D. F represents a piece of jet, iu which the metal Gis to be inlaid, and through it, directly beneath the place where the recess f1 is to be formed to receive the plate G, are formed several small holes, f2, as shown in Figs. 6, 8, and 9.

ln recessing the jet F it is placed upon some support that will support it squarely, and will not cover the holes f2. The sheetmetal plate E is then placed evenly upon the face of the jet. The die D is heated to a dull red heat, and is inserted in the opening in the plate E, and pressed down upon the jet F until the recess f1 has been burned to lthe required depth.

lhe cavities and holes all cl2 of the die D, and the holes through the jet F, allow the smoke and gases developed by the burning to escape, and thus prevent the jet from being cracked or broken. At the salne time the plate E absorbs the heat that would otherwise burn down the edges of the recess f1, and prevent said edges from being clean and sharp. The bottom of the recess f1 is then covered with wax or cement to such a depth that the surface ofthe piece G, when inserted, may be iiush with the surface of the jet F.

To the center of the jet F, when a stud is to be made, is secured a pin,g, which is passed through the center hole f2, and has a screwthread cut upon it, so that the shank H can be screwed upon it, and thus held securely in place. I

The open ends ot' the holes f2 may be lled with wax, or small screws o may be screwed l into them.

In this way pieces G- of metal of any desired form, no matter how irregular or complex, may be easily and quickly inlaid in jet, and the work may be done without danger of cracking or chipping the jet. Vhen the pieces G are large, pins g may also be appied to their ends to assist in securing them in place.

rlhe above-described process can be applied with equal facility and advantage for inlaying hard rubber, tortoise-shell, and other Inaterials with metal.

Having thiis described my invention, I claim guard-plate peiforations, and the application as new mid desire to secure by Letters Patoi cement and an ornamental device imme-v entdiately after the removal of said instruments,

The process of inlaying jet with metal, conl.ill substantially as set forth.

sisting in the application of a guard-plate per- WILLIAM STEPHANS.

foratcd with the desired design to the article Witnesses:

of jet, the burning of a matrix in the jet by JAMES T. GRAHAM,

heated dies, which are passed through the T. B. MOSHER.

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