mechanical action
51Direct electric action — is one of various systems used in pipe organs to control the flow of air (wind) into the organ s pipes when the corresponding keys or pedals are depressed. In direct electric action, the valves beneath the pipes are opened directly by electro… …
52Academy Award for Live Action Short Film — This name for the Academy Award for Live Action Short Film was introduced in 1974. For the three preceding years it was known as Short Subjects, Live Action Films. The term Short Subjects, Live Action Subjects was used from 1957 until 1970. From… …
53Izhevsk Mechanical Works — (RTS|IGMA) ( ru. Ижевский Mашзавод) or IZhMASh (ИЖМАШ) is a weapons manufacturer based in Izhevsk, founded in 1807 at the decree of Tsar Alexander I, and is now one of the largest corporations in its field. It makes the famous Kalashnikov series… …
54tracker action — ▪ musical instrument in music, on the organ, mechanical system that transmits the organist s action in depressing a key to the pallet valve that admits air into the pipes that the key controls. It consists of cranks, levers, and trackers… …
55Collapse action — is a device behaviour that snaps a switch into place, usually using a bistable element. When flipping a light switch, strain on one spring increases until it flips position, pulling down the switch. Collapse action allows you to remove your hand… …
56Stop action magnet — The stop action magnet, usually abbreviated to SAM, is an electromagnetic device used for the control of pipe organs and virtual pipe organs, and forms part of the organ s combination action. On a classical organ the device may be referred to as… …
57Hydraulic action — is a form of mechanical weathering caused by the force of moving water currents rushing into a crack in the rockface. The water compresses the air in the crack, pushing it right to the back. As the wave retreats, the highly pressurised air is… …
58Typewriter — Mechanical desktop typewriters, such as this Underwood Five, were long time standards of government agencies, newsrooms, and offices …
59Pipe organ — This article is about organs that produce sound by driving wind through pipes. For an overview of related instruments, see Organ (music). The pipe organ in Saint Germain l Auxerrois, Paris[1] The pipe organ is a musical instrument …
60papermaking — [pā′pər māk΄iŋ] n. the making of paper papermaker n. * * * pa·per·mak·ing (pāʹpər mā kĭng) n. The process or craft of making paper. paʹper·mak er n. * * * Introduction formation of a matted or felted sheet, usually of cellulose fibres,… …
