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The nozzle and flapper mechanism is a displacement type detector which converts mechanical movement into a pressure signal by covering the opening of a nozzle with a flat plate called the flapper. [1] This restricts fluid flow through the nozzle and generates a pressure signal.
Köhler illumination is a method of specimen illumination used for transmitted and reflected light (trans- and epi-illuminated) optical microscopy.Köhler illumination acts to generate an even illumination of the sample and ensures that an image of the illumination source (for example a halogen lamp filament) is not visible in the resulting image.
Tilting-disc inconel check valve Check valve symbol on piping and instrumentation diagrams.The arrow shows the flow direction. Vertical lift check valve. A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.
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 The toilet ballcock, long made of brass and later made of plastic, was superseded by the float cup, pioneered in 1957 by the Fluidmaster founder Adolf Schoepe , which is integrated with the tank’s fill valve and so ...
The Southern Pacific GS-4 is a class of semi-streamlined 4-8-4 "Northern" type steam locomotive operated by the Southern Pacific Railroad (SP) from 1941 to 1958. A total of 28 locomotives were built by Lima Locomotive Works (LLW) in Lima, Ohio, with the first batch of 20 built between March and May 1941, while the second batch of eight were built between March and April 1942.
Ernesto Köhler (4 December 1849 – 17 March 1907) was an Italian flautist and composer.He was considered one of the best flautists of his era. [1]Born in Modena, Köhler was taught the flute by his father, Venceslau Joseph Köhler, who was the first flute of the Duke of Modena's orchestra. [1]
Kaufmann Kohler was born into a family of German Jewish rabbis in Fürth, Kingdom of Bavaria.He received his rabbinical training at Hassfurt, Höchberg near Würzburg, Mainz, Altona, and at Frankfurt am Main under Samson Raphael Hirsch, and his university training at Munich, Berlin, Leipzig, and Erlangen (Ph.D. 1868).
Flapper dresses were straight and loose, leaving the arms bare (sometimes no straps at all) and dropping the waistline to the hips. Silk or rayon stockings were held up by garters. Skirts rose to just below the knee by 1927, allowing flashes of leg to be seen when a girl danced or walked through a breeze, although the way they danced made any ...