- vane of instrument
- визир, визирная прорезь
Англо-русский строительный словарь. 2013.
Англо-русский строительный словарь. 2013.
Vane anemometer — A vane anemometer is a type of anemometer, a meteorological instrument used to measure wind speed. The vane anemometer can also measure wind direction.A vane anemometer which uses a small fan is turned by air flowing over the vanes. The speed of… … Wikipedia
vane — /veɪn / (say vayn) noun 1. a flat piece of metal, or some other device fixed upon a spire or other elevated object in such a way as to move with the wind and indicate its direction; a weathercock. 2. a similar piece, or sail, in the wheel of a… …
Quadrant (instrument) — Ptolemy using a quadrant A quadrant is an instrument that is used to measure angles up to 90°. It was originally proposed by Ptolemy as a better kind of astrolabe.[1] Several different variations of the instrument were later produced by medieval… … Wikipedia
Weather vane — A weather vane, also called a wind vane, is a movable device attached to an elevated object such as a roof for showing the direction of the wind. Very often these are in the shape of cockerels and are called weather cocks. Arrows are also popular … Wikipedia
weather vane — Synonyms and related words: April showers, Proteus, aerological instrument, anemograph, anemometer, anemometrograph, anemoscope, aneroid barometer, aneroidograph, barograph, barometer, barometrograph, chameleon, cloud shapes, cock, feeler, glass … Moby Thesaurus
Cheng Rotation Vane CRV — Cheng Rotation Vane The Cheng Rotation Vane CRV® consists of a set of stationary vanes in a cylindrical body which is placed immediately upstream of an elbow or tee in a piping system. It eliminates elbow induced turbulence which negatively… … Wikipedia
Wind instrument — Wind Wind (w[i^]nd, in poetry and singing often w[imac]nd; 277), n. [AS. wind; akin to OS., OFries., D., & G. wind, OHG. wint, Dan. & Sw. vind, Icel. vindr, Goth winds, W. gwynt, L. ventus, Skr. v[=a]ta (cf. Gr. ah ths a blast, gale, ah^nai to… … The Collaborative International Dictionary of English
Backstaff — Not to be confused with Ballastella. Davis quadrant from the beginning of the 18th century The backstaff or back quadrant is a navigational instrument that was used to measure the altitude of a celestial body, in particular the sun or moon. When… … Wikipedia
Jacob's staff — with four transom For the plant known as the ocotillo, sometimes called the Jacob s staff, see ocotillo. The Jacob s staff, also called a cross staff, a ballastella, a fore staff, or a balestilha is used to refer to several things. This can lead… … Wikipedia
Elton's quadrant — An Elton s quadrant is a derivative of the Davis quadrant. It adds an index arm and artificial horizon to the instrument. It was invented by John Elton a sea captain who patentedhis design in 1728Bennett, Jim, Catadioptrics and commerce in… … Wikipedia
Anemometer — A hemispherical cup anemometer of the type invented in 1846 by John Thomas Romney Robinson Cup ty … Wikipedia