French sector by Canivet,

Made:
1751-1774 in Paris
Brass French sector by Canivet, Paris, 1751-1774 Sector, 6 1/2"; brass; engraved "Canivet a paris"

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Buy this image as a print 

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Brass French sector by Canivet, Paris, 1751-1774
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sector, 6 1/2"; brass; engraved "Canivet a paris"
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Sector, 6 1/2"; brass; engraved "Canivet a paris"

Brass French sector by Canivet, Paris, 1751-1774. French sectors are less complicated than English sectors. They are also used for calculations involving proportions of length, area and volume.The lines radiate from the centre of the hinge.

Details

Category:
Mathematics
Object Number:
1917-94
Materials:
brass (copper, zinc alloy)
Measurements:
overall (closed): 4 mm x 173 mm x 30 mm, 0.156 kg
type:
sector
credit:
Thomas H. Court