Search results
Results from the WOW.Com Content Network
Thomas Savery (/ ˈ s eɪ v ər i /; c. 1650 – 15 May 1715) was an English inventor and engineer.He invented the first commercially used steam-powered device, a steam pump [1] which is often referred to as the "Savery engine".
A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...
Crossword-like puzzles, for example Double Diamond Puzzles, appeared in the magazine St. Nicholas, published since 1873. [32] Another crossword puzzle appeared on September 14, 1890, in the Italian magazine Il Secolo Illustrato della Domenica. It was designed by Giuseppe Airoldi and titled "Per passare il tempo" ("To pass the time"). Airoldi's ...
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 ...
A diagram of Bushnell's American Turtle David Bushnell (August 30, 1740 – 1824 or 1826), of Westbrook, Connecticut , was an American inventor , a patriot , a teacher, and a medical doctor. Bushnell invented the first submarine to be used in battle, Turtle , as well as a floating mine triggered by contact.
Armais Sergeevich Arutunoff (June 21, 1893 - February 1978) was an inventor of technology for oil drilling.He was born in Tiflis, then part of the Russian Empire, into an Armenian family.
Note: These diagrams represent a configuration typical in the USA, mechanisms may vary in other countries [citation needed]. The toilet ballcock, long made of brass and later made of plastic, was superseded by the float cup, pioneered in 1957 by the Fluidmaster founder Adolf Schoepe , which is integrated with the tank’s fill valve and so ...
At the end of this power stroke, the steam valve was reopened, and the weight of the pump rods pulled the beam down, lifting the piston and drawing steam into the cylinder again. Using the piston and beam allowed the Newcomen engine to power pumps at different levels throughout the mine, as well as eliminating the need for any high-pressure steam.