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Electrotyping. Schematic apparatus for electrotyping. An electric current flows from the battery, through the copper anode, the electrolyte, and the coated mold. A copper film (the electrotype) grows onto the electrically conducting coating of the mold. Electrotyping (also galvanoplasty) is a chemical method for forming metal parts that exactly ...
Moritz Hermann von Jacobi, russified from 1837 as Boris Semyonovich Yakobi (Russian: Борис Семёнович Якоби; 21 September 1801 – 10 March 1874) was a Prussian and Russian Imperial engineer and physicist of Jewish descent. Jacobi worked mainly in the Russian Empire. He furthered progress in galvanoplastics, electric motors ...
Electroplating, also known as electrochemical deposition or electrodeposition, is a process for producing a metal coating on a solid substrate through the reduction of cations of that metal by means of a direct electric current. The part to be coated acts as the cathode (negative electrode) of an electrolytic cell; the electrolyte is a solution ...
Electroforming. Electroforming is a metal forming process in which parts are fabricated through electrodeposition on a model, known in the industry as a mandrel. Conductive (metallic) mandrels are treated to create a mechanical parting layer, or are chemically passivated to limit electroform adhesion to the mandrel and thereby allow its ...
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Cerography. Cerography or glyphography is a printmaking technique related to engraving, using a layer of wax over a metal substrate. After the image is engraved into the wax, a positive plate is produced through stereotyping or electrotyping. This plate can be used with conventional letterpress equipment.
Electrotyping - a process used to create metal copies of designs by depositing metal onto a mold using electroplating; Electrowinning - a process that extract metals from their solutions using an electric current; Electroforming - a process that deposits metal onto a mold or substrate to create metal parts
Joseph Alexander Adams (1803 – September 11, 1880) was an American engraver who is said to have been the first electrotyper in the United States. He was born in New Germantown, New Jersey (now within Tewksbury Township ), in 1803. [1] He was an apprentice in the printing business. His work as an engraver had appeared as early as 1833 in the ...