10 ENGLISH BOOKS RELATING TO «CIRCUMFERENTOR»
Discover the use of
circumferentor in the following bibliographical selection. Books relating to
circumferentor and brief extracts from same to provide context of its use in English literature.
1
Scientific Instruments, 1500-1900: An Introduction
A graphometer can be made with a full circle rather than a semicircle, and may
be confused with the circumferentor. The original form of Digges's theodolite, it
used open sights that were eventually replaced by telescopic sights. The
compass ...
*By the Circumferentor. TH E Box of the Circumferentor is divided into 360
Degrees, and numbred in 4 Quarters, from the North and South both to the East
and West, by the Figures 10, zo, 30, 40, yo, 60, 70, 80, 90, but these Divisions are
also ...
William Leybourn, Mr. Cunn (Samuel), 1722
3
A complete Treatise on practical Land-Surveying, etc. With ...
The great length of the magnetic needle increases the accuracy of the
circumferentor, for, ,if it were small, and consequently the graduations on the
brass circle proportionately small, the angle could not be read off with sufficient
accuracy.
Anthony NESBIT, Thomas BAKER (Civil Engineer.), 1855
4
A complete treatise on practical land-surveying, in all its ...
The great length of the magnetic needle increases the accuracy of the
circumferentor, for, if it were small, and consequently the graduations on the
brass circle proportionately small, the angle could not be read off with sufficient
accuracy.
5
The Civil-engineer & Surveyor's Manual: Comprising ...
6 X 2 right angles = 1080° By subtraction n° = 720° Having the Interior Angles, to
Reduce them to Circumferentor Bearings, and thence to Quarter Compass
Bearings. 214. Assume any line whose circumferentor bearing is given. Always
ketp ...
6
Nesbit's Practical Land-Surveying. Eleventh edition. (Field ...
TO SURVEY \VI'I'H THE CIRCUMFERENTOR. The circumferentor is sometimes
used in surveying. It consists of a flat bar of brass BB, about fifteen inches long,
with sights 00 at its opposite ends, and two narrow slits b, c for taking
observations ...
Anthony NESBIT, William BURNESS, 1870
7
Map Of A Nation: A Biography Of The Ordnance Survey
Roy's theodolite was a type called a circumferentor and consisted of an alidade
fixed to a compass; like most theodolites in the first half of the eighteenth century,
it did not contain a telescope. The instrument exploited the principle that light ...
8
The theory and practice of surveying: containing all the ...
If you take the bearing of any line with the circumferentor, that bearing will be the
number of degrees the line is from the north ; consequently the north must be a
like number of degrees from the line, and thus the north, and of course the south,
...
Robert Gibson, D. P. Adams, James Ryan, 1828
9
The Oxford Companion to the History of Modern Science
The surveying compass or circumferentor, a straightforward instrument based on
the magnetic compass, and in particular, the plane table, seemed to threaten the
carefully fostered new importance of the mathematicians ...
10
Instruments of Science: An Historical Encyclopedia
As a result, circumferentor cards usually have east and west transposed from the
familiar arrangement. The circumferentor was popular through the eighteenth
and into the nineteenth century, but it became increasingly associated with ...
Robert Bud, Deborah Jean Warner, 1998
3 NEWS ITEMS WHICH INCLUDE THE TERM «CIRCUMFERENTOR»
Find out what the national and international press are talking about and how the term
circumferentor is used in the context of the following news items.
A day at the museum
It is a journey back in time, with circumferentor, pantographs and theodolites. They are among the old survey equipment exhibited at Survey ... «The Hindu, May 14»
Burwell name has deep roots in South Caradoc
The small, handheld circumferentor was the scientific tool of the day. On Sundays the men rested and washed their clothes. Colonel Burwell ... «Strathroy Age Dispatch, Jul 13»
Plane Table Mapping
... Surveyor to ufe, in that it performeth whatfoever may be done either by Theodolite, Circumferentor, Peractor, Perambulator, or any other graduated Inftrument, ... «POB, May 13»
