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Their process was known as the Siemens–Martin process or Martin–Siemens process, and the furnace as an "open-hearth" furnace. Most open hearth furnaces were closed by the early 1990s, not least because of their slow operation, being replaced by the basic oxygen furnace or electric arc furnace .
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.
While the H11 was popular with hard-core hobbyists, Heath engineers realized that DEC's low-end PDP-11 microprocessors would not be able to get Heath up the road to more powerful systems at an affordable price. Heath/Zenith then designed a dual Intel 8085/8088-based system dubbed the H100 (or Z-100, in assembled form, sold by ZDS). The machine ...
After it was damaged in an accident during testing, and dissatisfied with the timeframe for receiving repair parts from Martin, Boeing decided he could build his own airplanes with the expertise of George Conrad Westervelt and wooden parts fabricated at the Heath facility. After two "B&W" seaplanes were completed in 1916, Boeing decided to go ...
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English: Diagram from Thomas J. Martin's fire extinguisher patent (US125063). The patent is signed by Thomas J. Martin and two witnesses and dated 26 March 1872. The diagram depicts a tall vertical structure that can be used to extinguish fires within buildings.
The factory for building aircraft was established in 1929 by James Martin [5] [6] and "Martin's Aircraft Works" was founded at Denham by James Martin and Captain Valentine Baker with financial help from Francis Francis. The company was building a prototype aircraft, the MB 1, using the design patents for aircraft structures held by Martin.
Zenith Data Systems Corporation (ZDS) was an American computer systems manufacturing company active from 1979 to 1996.It was originally a division of the Zenith Radio Company (later Zenith Electronics), after they had purchased the Heath Company and, by extension, their Heathkit line of electronic kits and kit microcomputers, from Schlumberger in October 1979.