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- Bulls_eye_level abstract "A bull's eye level is a type of spirit level that allows for the leveling of planes in two dimensions — both the 'pitch' and 'roll' in nautical terms. Standard tubular levels only consider one dimension. Bull's eye levels are used primarily by carpenters in construction, but can also be found as features of compasses or other devices that need to be kept from tipping in certain directions (whether it be for functionality or precision of measurements). Small bull's eye levels are also found incorporated into tripods.Another name for a bull's eye level is a "circular bubble" which is the name used by surveyors in the United Kingdom. Surveying instruments such as theodolites (transits) and total stations often have a circular bubble as well as a tubular level or "plate level". The circular bubble is used to roughly level the instrument in two dimensions and then the plate level, being more precise, is used to level the instrument more precisely in each dimension separately by leveling the plate level, then spinning the instrument 90 degrees and leveling the plate level again.The Fell All-Way precision level, one of the first successful American made bull's eye levels for machine tool use, was invented by William B. Fell, Rockford, Illinois prior to WWII in 1939. The device was unique in that it could be placed on a machine bed and show tilt on the x-y axises simultaneously; eliminating the need to rotate the level 90 degrees. The level was so accurate it was restricted from export during World War II. The device set a new standard of .0005 inches per foot resolution (five ten thousands per foot or five arc seconds tilt). The level's production stopped around 1970. Production restarted in 1980s by Thomas Butler Technology, Rockford, Illinois, but finally ended in the mid 1990s. However, there are still hundreds of the highly prized devices in existence.".
- Bulls_eye_level thumbnail Green_bulls_eye_level_(level).jpgwidth=300.
- Bulls_eye_level wikiPageID "4303979".
- Bulls_eye_level wikiPageLength "2603".
- Bulls_eye_level wikiPageOutDegree "12".
- Bulls_eye_level wikiPageRevisionID "627734457".
- Bulls_eye_level wikiPageWikiLink Carpenter.
- Bulls_eye_level wikiPageWikiLink Carpentry.
- Bulls_eye_level wikiPageWikiLink Category:Inclinometers.
- Bulls_eye_level wikiPageWikiLink Category:Woodworking_measuring_instruments.
- Bulls_eye_level wikiPageWikiLink Compass.
- Bulls_eye_level wikiPageWikiLink Spirit_level.
- Bulls_eye_level wikiPageWikiLink Theodolite.
- Bulls_eye_level wikiPageWikiLink Total_station.
- Bulls_eye_level wikiPageWikiLink Tripod_(photography).
- Bulls_eye_level wikiPageWikiLink Tubular_level.
- Bulls_eye_level wikiPageWikiLink File:5Sec3Tenths.JPG.
- Bulls_eye_level wikiPageWikiLink File:Green_bulls_eye_level_(level).jpg.
- Bulls_eye_level wikiPageWikiLink File:Green_bulls_eye_level_(unlevel).jpg.
- Bulls_eye_level wikiPageWikiLinkText "Bull's eye level".
- Bulls_eye_level wikiPageWikiLinkText "bull's eye level".
- Bulls_eye_level hasPhotoCollection Bulls_eye_level.
- Bulls_eye_level wikiPageUsesTemplate Template:Measurement-stub.
- Bulls_eye_level wikiPageUsesTemplate Template:Refimprove.
- Bulls_eye_level wikiPageUsesTemplate Template:Reflist.
- Bulls_eye_level subject Category:Inclinometers.
- Bulls_eye_level subject Category:Woodworking_measuring_instruments.
- Bulls_eye_level hypernym Level.
- Bulls_eye_level comment "A bull's eye level is a type of spirit level that allows for the leveling of planes in two dimensions — both the 'pitch' and 'roll' in nautical terms. Standard tubular levels only consider one dimension. Bull's eye levels are used primarily by carpenters in construction, but can also be found as features of compasses or other devices that need to be kept from tipping in certain directions (whether it be for functionality or precision of measurements).".
- Bulls_eye_level label "Bull's eye level".
- Bulls_eye_level sameAs Doosniveau.
- Bulls_eye_level sameAs Libella_okrągła.
- Bulls_eye_level sameAs m.0bw2kx.
- Bulls_eye_level sameAs Круглый_уровень.
- Bulls_eye_level sameAs Q2566226.
- Bulls_eye_level sameAs Q2566226.
- Bulls_eye_level wasDerivedFrom Bulls_eye_leveloldid=627734457.
- Bulls_eye_level depiction Green_bulls_eye_level_(level).jpg.
- Bulls_eye_level isPrimaryTopicOf Bulls_eye_level.