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Historic Patents and Inventions
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Slide Rule Patents and Inventions
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Invented by Edmund Gunter in 1630. The slide rule was invented by Edmund Gunter in 1630. Circular slide rule. Based upon the fact that multiplication and division of numbers may be performed by the addition and subtraction of their logarithms. March 4, 1851. Circular slide rule. Performs addition, subtraction, multiplication and division based upon elementary arithmetic techniques. January 15, 1878. September 2, 1879. November 1, 1881. July 31, 1888. Engineer s slide rule. October 6, 1891. Two sliding sc...
Andrew Alford Patents and Inventions
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Instrument Landing System (ILS), 1951, US patent 2,682,050. Andrew Alford (1904 1992) was a Russian born American electrical engineer and inventor. Invented and developed antennas for radio navigation systems, now used for VHF omnidirectional range and instrument landing systems. Best known for the invention of the Localizer Antenna System (Instrument Landing System) and the Alford loop Antenna. International Telephone and Radio Manufacturing Corporation. May 26, 1942. Mackay Radio and Telegraph Company.
Adrenaline (Epinephrine) Patents and Inventions
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Discovered by Napoleon Cybulski in 1895. Adrenal extracts containing adrenaline were first obtained by Polish physiologist Napoleon Cybulski in 1895. Japanese chemist Jokichi Takamine and his assistant Keizo Uenaka independently discovered adrenaline in 1900 (Japanese patent No. 4785). Method for synthesis of oxyphenyl-isopropylamine (translated from German). Synthesis of oxyphenyl-isopropylamine (related to adrenaline) (translated from German). Karl W. Rosenmund; Carl Mannich; Willy Jacobsohn. Improving...
Herman Affel Patents and Inventions
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Coaxial cable, 1929, (US patent 1,835,031). Herman Affel (1893 1972); an American electrical engineer and inventor; co-authored or authored around 40 patents for electronic devices, including advanced transmitters and innovative antennas. Best known for coinventing the coaxial cable carrier system for multiple high speed long distance data transmissions (US patent 1,835,031). Equalization of Carrier Transmissions. Herman A. Affel. American Telephone and Telegraph Company (AT&T). October 7, 1924.
Chemical Elements by Name: Quick Chemistry Facts
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Melting and Boiling Point. Noble and Precious Metals. Chemical Elements by Name. Chemical Properties, Physical Properties and General Information. Electrical Engineering Patents and Inventions. Last updated: April 2011.
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Historic Patents and Inventions
Historic Patents and Inventions. Napoleon Cybulski, 1895. Erik Rotheim, 1926. George Westinghouse, 1872. Willis Haviland Carrier, 1902. Charles Martin Hall, 1886. Hippolyte Pixii, 1832. Thomas Bolas, 1881. Martin Cooper, 1973. Digital Light Processing (DLP). Digital TAD (Telephone Answering Device). FET - Field Effect Transistor. HDPE and Polypropylene Plastics. MRI - Magnetic resonance imaging. NMR - nuclear magnetic resonance spectroscopy. PCR - Polymerase Chain Reaction. Photovoltaic Cell (Solar Cell).
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Chemistry Is All Around Us Project
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