(Rotary Valve) A disc type valve operated by a lever system today mostly used on brasswinds of central and eastern European manufacture and almost universally used on French horns.
A rotary valve is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. The common stopcock is the simplest form of rotary valve.
(Rotary valve) A type of valve used in 2 & 4 stroke engines which, as it rotates, opens & closes gas passageways. Usually a disc, conical or cylindrical in shape & normally found on inlet systems
United States inventor and manufacturer (1846-1914)
(Westinghoused) Electrocution is the stopping of life (determined by a stopped heart) by any type of electric shock.
George (1846–1914), US engineer. He is best known for developing vacuum-operated safety brakes and electrically controlled signals for railroads. He held over 400 patents and built up a huge company to manufacture his products
(under their WABCO subsidiary) was the first to offer airhorns for railroad equipment, going as far back as the 1910s. Their E2 model was known by many for the deep, commanding tone it produced. Overshadowed early on by their competitors, WABCO no longer produces horns for the North American market.