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Duplicating machines. Duplicating machines were the predecessors of modern document-reproduction technology. They have now been replaced by digital duplicators, scanners, laser printers and photocopiers, but for many years they were the primary means of reproducing documents for limited-run distribution. The duplicator was pioneered by Thomas ...
v. t. e. A spirit duplicator (also referred to as a Rexograph or Ditto machine in North America, Banda machine or Fordigraph machine in the U.K. and Australia) is a printing method invented in 1923 by Wilhelm Ritzerfeld that was commonly used for much of the rest of the 20th century. The term "spirit duplicator" refers to the alcohols that were ...
Superconducting magnet. Schematic of a 20-tesla superconducting magnet with vertical bore. A superconducting magnet is an electromagnet made from coils of superconducting wire. They must be cooled to cryogenic temperatures during operation. In its superconducting state the wire has no electrical resistance and therefore can conduct much larger ...
Linotype machine. The Linotype machine (/ ˈlaɪnətaɪp / LYNE-ə-type) is a "line casting" machine used in printing which is manufactured and sold by the former Mergenthaler Linotype Company and related companies.[1] It was a hot metal typesetting system that cast lines of metal type for one-time use.
William Nicholson filed a 1790 patent for a rotary press. The rotary press itself is an evolution of the cylinder press, also patented by William Nicholson, invented by Beaucher of France in the 1780s and by Friedrich Koenig in the early 19th century. [1][2] Rotary drum printing was invented by Josiah Warren in 1832, [3] whose design was later ...
Paige Compositor. The Paige Compositor was an invention developed by James W. Paige (1842–1917) between 1872 and 1888. It was designed to replace the human typesetter of a lead type-composed printing form with a mechanical arm. [1][2] In the early 1890s, a group of inventors signed a contract with Towner K. Webster in Chicago to produce 3,000 ...
The Teletype Model 20 is an upper/lower case Type Bar Page Printer available as a receive only machine or a send-receive machine with four rows of keys, using a six-bit code for TeleTypeSetter (TTS) use. [32] [33] Model 26 (1939) The Teletype Model 26 is a Baudot code page printer; a lower-cost machine using a typewheel.
e. Laser printing is an electrostatic digital printing process. It produces high-quality text and graphics (and moderate-quality photographs) by repeatedly passing a laser beam back and forth over a negatively charged cylinder called a "drum" to define a differentially charged image. [1] The drum then selectively collects electrically charged ...
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