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He is best known for the invention of the crossword puzzle in 1913, when he was a resident of Cedar Grove, New Jersey. [5] Wynne created the page of puzzles for the "Fun" section of the Sunday edition of the New York World. For the December 21, 1913, edition, he introduced a puzzle with a diamond shape and a hollow center, with the letters F-U ...
He was included in the 1925 edition of Who's Who in American Aviation. Titterington and Brice Herbert Goldsborough founded the Pioneer Instrument Company in 1919. Titterington designed the Earth inductor compass in 1924.
The earth inductor compass is an American invention. It was designed in 1924 by Morris Titterington at the Pioneer Instrument Company . Designed to compensate for the weaknesses of the magnetic compass , the Earth inductor compass provided pilots with a more stable and reliable reference instrument.
The new range of Barr & Stroud binoculars are currently made in China (Nov. 2011) and distributed by Optical Vision Ltd. Bausch & Lomb (US) – has not made binoculars since 1976, when they licensed their name to Bushnell, Inc., who made binoculars under the Bausch & Lomb name until the license expired, and was not renewed, in 2005.
Ritchie thought they could be improved upon, and by 1860 had received a U.S. patent for the first successful and practicable liquid-filled marine compass suitable for general use, [10] [11] a development that has been described as the first major advance in compass technology in several hundred years. [12]
Elmer Ambrose Sperry Sr. (October 12, 1860 – June 16, 1930) was an American inventor and entrepreneur, most famous for construction, two years after Hermann Anschütz-Kaempfe, of the gyrocompass and as founder of the Sperry Gyroscope Company. [3]
David Pearsall Bushnell (1913–2005) was an American entrepreneur who founded the Bushnell optics company in 1948. Bushnell made precision binoculars affordable to middle-class Americans for the first time through a strategy of importing from manufacturers who provided optics to his patented specifications.
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...