US1296498A

US1296498A - Psocess of reproducing articles in metal

Info

Publication number: US1296498A
Authority: US
Publication date: 1919-03-04
Anticipated expiration: 1936-03-04

Description

A. FODOR.

PROCESS OF REPRODUCING ARTICLES IN METAL.

APPLICATION FILED APR. 17. l9l7.

1 296,4:98} Patented Man, 4, 1919.

ANTAL FODOR, OF NEW YORK, N. Y., ASSIGNOR T0 DYMALKON METALS CORPORATION, OF NEW YORK, Y., A CORPORATION OF NEW YORK.

PROCESS OF REPRODUCING ARTICLES IN METAL.

Specification of Letters Patent.

Patented Mar. 4, 1919.

Application filed April 17, 1917 Serial No. 162.797.

To all whom it may concern:

Be it known that I, ANTAL FoDoR, a subject of the Emperor of Austria-Hungary, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Processes for Reproducing Articles in Metal, of which the following is a specification.

This invention relates to a new process for reproducing articles in metal such as statues, busts, signs and figures of all kinds.

An object of this invention is the production of artistic figures of metal in an economical fashion and which will be faithful to the original reproduced.

Another ob ect of my invention is to substitute for the present costly process of casting in metals a process which will be time and labor saving and which will permit the sale of such reproductions nearly at the price of ordinary plaster cast figures.

The essential features of our process are the making of a negative mold from an original in one or more parts, the reproduction of a positive copy in a thin sheet from said negative mold in one or more parts, and the subsequent treatment of the positive copy so produced as will be hereinafter more fully described.

In the drawings, Figure 1 is a sectional view in two parts of a mold of a head which is a negative matrix of the head to be reproduced.

Fig. 2 is a sectional view similar to Fig. 1 but showing the two parts joined,

Fig. 3 is asectional view showing the same head with the negative matrix removed and the same electroplated on its exterior surface, and

Fig. 4 is a sectional view of the head with a portion of the material thereon removed and electroplated on its interior surface.

1 and 2 indicates a negative mold made in two parts. On the inner surface of parts 1 and 2 a layer of thin metal is deposited preferably by means of spraying and for convenience in making this initial positive layer. we use a comparatively low fusible composition made of lead, tin and antimony. Into the

parts

3 and 4 respectively, an insulating material such as asphalt or parafiin is now poured as shown at 5 and 6 in the drawing. The arts 1 and 2 are then joined and to cement t e same more firmly together ings. We have found it convenient in prac-' tice to polish off the seam 8 where the

parts

3 and 4 are joined and afterward to furnish this seam with an electrically conductive surface as of graphite, before electroplating. By electroplating the entire piece, a homogeneous surface is obtained on same which can be very thin so as not to distort the details of the object to be reproduced inasmuch as the

positive layers

3 and 4 are already of metal. After the plating is completed, the object may be put in hot water to melt and remove the

insulating material

5, 6 and 7 which flows out through the hole 9.

In order to increase the weight or solidity of the figure, it can again be filled through the hole 9 with a metallic or nonmetallic composition shown at 11 in- Fig. 4.

By the above process we are enabled to reproduce metallic or non-metallic articles cheaply and with great fidelity to the originals and in a durable non-breakable form.

What I claim is:

1. A method of making metallic repro-.

ductions by preparing positive metal copies from negative matrices in several pafts and joining said parts by a material of low fusibility.

2. A method of making metallic reproductions by preparing positive metal copies from negative matrices in several parts and joining said parts by a material of low fusibility and afterward electroplating said parts.

3. A process of making metallic reproductions by producing positive copies from negative matrices, joining said copies by material of low fusibility, electroplating said copies and afterward reinforcing said electroplated object.

4. A method of making metallic reproductions by preparing a negative matrix in several parts, preparing positive copies therefrom, joining said positive copies and electroplating said positive copies so as to produce a single piece.

5. A method of making metallic reproductions by making a negative matrix, producing a positive copy in a thin metallic sheet upon said matrix by spraying, reinforcing said positive cop With an insulating material of low fusibility, electroplating said positive copy and removing said insulating material.

6. A method of making metallic repro- Oopies 0! this patent may be obtained for ductions by making a negative matrix, producing a positive copy in a thin metallic sheet upon said matrix by spraying, reinforcing said positive copy with an insulating material of low fusibility,'electrop1ating said positive copy, removing said insulating material and reinforcing'said positive copy after said insulating material has been removed.

In testimony whereof I hereunto afiix my signature. 1

' ANTAL FODOR.

five cents each, by addressing the "Commissioner of Patents, Washington, D. 0."