Electrotype - definição. O que é Electrotype. Significado, conceito
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O que (quem) é Electrotype - definição

CHEMICAL METHOD FOR FORMING METAL PARTS THAT EXACTLY REPRODUCE A MODEL
Galvanoplastics; Galvanoplastic; Galvanoplasty; Galvanoplastic sculpture; Electrotype; Electrotyper; Photoelectrotype; Photoelectrotyping
  • alt=Two similar images, each showing 2 children reading a magazine. One child is seated on a floor and holds the magazine; the second child is kneeling. The left image has the description "Wood Engraving." underneath it; the right image has the description "Electrotype Copy." underneath it. The two images are nearly identical.
  • alt=Line drawing.
  • alt=Photograph of a statue of Goethe and Schiller standing side by side, each looking forward. There are trees and blue sky visible behind the statue. The two figures are of nearly the same height. Goethe appears middle-aged; Schiller is noticeably younger. They are dressed in nineteenth century clothing. Goethe is wearing a knee-length formal coat, and Schiller is wearing a calf-length coat. Both men wear breeches. Goethe's left hand rests lightly on Schiller's shoulder; his right hand holds a laurel wreath near his waist. Schiller's right hand is nearly touching the wreath, which may suggest that Goethe is passing the wreath to Schiller. Schiller's left hand extends loosely below his waist, and grasps a rolled sheet of paper.
  • alt=Photograph of a large workshop crowded with machinery. There are at least four men working there. There are belts coming down from the ceiling that drive the machinery. Two electric lighting fixtures are also hung from the ceiling.
  • alt=Photograph of a lithograph. It shows the torso and head of a middle-aged man who is apparently seated and is looking off to the reader's right. He is dressed formally, and is wearing a coat, a white shirt, and a tie. There is a metal pin on his lapel. He has black hair, is somewhat balding, and is slightly overweight.

electrotype         
¦ verb [often as noun electrotyping] copy by the electrolytic deposition of copper on a mould.
¦ noun a copy made in such a way.
Derivatives
electrotyper noun
Electrotype         
The reproduction of a form of type or of an engraving or of the like by electroplating, for printing purposes. The form of type is pressed upon a surface of wax contained in a shallow box. The wax is mixed with plumbago, and if necessary some more is dusted and brushed over its surface and some iron dust is sprinkled over it also. A matrix or impression of the type is thus obtained, on which copper is deposited by electroplating, q. v.
Electrotype         
·vt To make facsimile plates of by the electrotype process; as, to electrotype a page of type, a book, ·etc. ·see Electrotype, ·noun.
II. Electrotype ·noun A facsimile plate made by electrotypy for use in printing; also, an impression or print from such plate. Also used adjectively.

Wikipédia

Electrotyping

Electrotyping (also galvanoplasty) is a chemical method for forming metal parts that exactly reproduce a model. The method was invented by Moritz von Jacobi in Russia in 1838, and was immediately adopted for applications in printing and several other fields. As described in an 1890 treatise, electrotyping produces "an exact facsimile of any object having an irregular surface, whether it be an engraved steel- or copper-plate, a wood-cut, or a form of set-up type, to be used for printing; or a medal, medallion, statue, bust, or even a natural object, for art purposes."

In art, several important "bronze" sculptures created in the 19th century are actually electrotyped copper, and not bronze at all; sculptures were executed using electrotyping at least into the 1930s. In printing, electrotyping had become a standard method for producing plates for letterpress printing by the late 1800s. It complemented the older technology of stereotyping, which involved metal casting. By 1901, stereotypers and electrotypers in several countries had formed labor unions around these crafts. The unions persisted into the 1970s, but by the late 20th century, after more than a century in widespread use for preparing plates, the two technologies had been bypassed by the transitions to offset printing and to new techniques for the preparation of printing plates.