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- Circumferentor - Wikipedia
A circumferentor, or surveyor's compass, is an instrument used in surveying to measure horizontal angles It was superseded by the theodolite in the early 19th century
- Compasses Circumferentors
Circumferentors, with their ability to take bearings, were especially useful for surveys where there were no local landmarks Which is why Circumferentors became especially useful and popular in Ireland and the Americas
- Surveying Compass - Thomas Jeffersons Monticello
Jefferson almost certainly owned and used a plain surveying compass (in England it was known as a circumferentor) It would have been his major surveying tool before he acquired his Ramsden theodolite in 1778
- Surveyor Compass (Circumferentor): 9 Parts, Adjustment, Uses . . .
The Surveyor compass is commonly referred to as the Circumferentor It essentially consists of a graduated horizontal circle, a pivoted magnetic needle, and a sighting device
- Circumferentor (aka Surveyors Compass) - Land Surveyors Dictionary . . .
The circumferentor, commonly referred to as a surveyor's compass, is a historical surveying instrument that played a pivotal role in land surveying for centuries before the advent of modern equipment like total stations and GPS
- Circumferentor : 9 Parts, Uses, Advantages Sources of Error
A circumferentor is an instrument used for the measurement of horizontal angles and the bearing of a line of sight The circumferentor is commonly referred to as the Surveyor Compass It essentially consists of a graduated horizontal circle, a pivoted magnetic needle, and a sighting device
- Circumferentor – Department of the Geographer
The circumferentor (or surveyor’s compass) was the basic tool of any surveyor during the period These instruments were produced in brass and wood and were made both in England as well as the Colonies
- CIRCUMFERENTOR Definition Meaning - Merriam-Webster
The meaning of CIRCUMFERENTOR is a surveyor's compass with diametral projecting arms each carrying a vertical slit sight
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