plane table

In use, a plane table is set over a point and brought to precise horizontal level.

They were used for land surveying, particularly with plane tables.

The plane table became a popular instrument for surveying.

With modern technology, the name is applied to complete instruments such as the plane table alidade.

This type of alidade could be found on a plane table, graphometer or similar instrument.

A plane table consists of a smooth table surface mounted on a sturdy base.

Seaton grinned as he stepped over to an object compass mounted upon the plane table.

The grid sketch prepared during the defense was very valuable; it corresponded to the plane table or plotting board of the present day.

'You wouldn't mind if we go wandering around with plane tables and levels, with a jeep?'

The work and planing table section consists of a 40mm thick, impact-resistant mdf top, with mdf jaw vice which opens to 150mm.

As the camera is used in conjunction with the plane table the bulletin includes also a brief account of the uses of the plane table.

Geological Survey maps were generally unavailable and early soil surveyors used the plane table and alidade to develop their own base maps.

The earliest mention of a plane table dates to 1551 in Abel Foullon's "Usage et description de l'holomètre", published in Paris.

Grundy used a number of devices to enable him to carry out surveys, including a theodolite, a circumferentor, Beighton's improved plane table, and a Gunter's chain.

Telescopic Plane Table Alidade in the collection of the Smithsonian National Museum of American History.

Frequently he would take the jeep and drive two or three miles to some spur of the hills, and spend an hour or two with plane table and theodolite.

This task can be, for example, to draw a line on a plane table in the direction of the object or to measure the angle to the object from some reference point.

In the instrument industry gambhar timber is widely employed for the manufacture of drawing boards, plane tables, instrument boxes, thermometer scales and cheaper grade metric scales.

Some have credited Johann Richter, also known as Johannes Praetorius, a Nuremberg mathematician, in 1610 with the first plane table, but this appears to be incorrect.

It was descriptively named for its shape by Frank Debenham of the British Antarctic Expedition, 1910-13, who made a plane table survey of the peninsula in 1912.

Named in 1997 by Advisory Committee on Antarctic Names (US-ACAN) in association with Plane Table.

On his return to his native county he made a plane table and prepared a map of the county, which was published in 1728 at a scale of one inch to one mile.

A plane table (plain table prior to 1830) is a device used in surveying and related disciplines to provide a solid and level surface on which to make field drawings, charts and maps.

In December 1892 a party detached from Bache made a plane table survey of Ellis Island supporting land survey work to establish the positions of buildings and wharves of the immigration station.

They were named by the UK Antarctic Place-Names Committee for Peter A. Cordall, a member of the South Georgia Biological Expedition, 1958-59, who made a plane table survey of Bird Island.