Sector by Troughton

Made:
1801-1830 in London
maker:
Edward Troughton
Sector by Troughton, brass, engraved "Troughton

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Sector by Troughton, brass, engraved "Troughton
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sector by Troughton, brass, engraved "Troughton, London" 12" x 3 1/4" when closed, case 14" x 4 1/2" x 1", "H.O.2." painted on case

This brass sector is a gentleman's instrument dating from the early 19th century. Sectors were used in calculations involving proportion. This instrument contains trigonometrical and navigational scales.

Details

Category:
Mathematics
Object Number:
1911-235
Materials:
brass, wood and complete
Measurements:
overall: 10 x 300 x 80 mm
type:
proportion drawing instruments and sectors
credit:
British Admiralty (Hydrographic Department)

Parts

Instrument case

Instrument case

Case for sector by Troughton, London

Materials:
wood
Object Number:
1911-235 Pt1
type:
instrument case