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Queen Anne's Revenge Project »  
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Tools and Instruments
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Sector

Sector

A brass sector (length closed 5.1 in., open 9.4 in.) features two logarithmically scaled arms joined at a pivotal hinge. Although no numbers are present, recessed dots or needle holes in sets of two, three, or four bracket some of the line spaces.

A line of English inches (2.54 cm) occurs on the inside edge of one arm, while the back edge when opened is divided evenly into eight French inches (2.75 cm); the first block of both scales is further divided into 12 increments. A small set pin ensures that the arms line up when the instrument is closed. When used with a pair of compasses, the sector enabled problems involving proportions to be solved instrumentally.

Tools and Instruments

  • Basin Fragment
  • Brass Scale Weight
  • Brass Surveying Sight
  • Brass Weights
  • Coin Weight
  • Dividers
  • Fishing Weights
  • Grindstone
  • Gunner's Bar
  • Iron Gouge
  • Large Silver Needle
  • Lead Weight
  • Mechanical Jack
  • Mortar and Pestle
  • Restraining Device
  • Sector
  • Survey Chain
  • Universal Staff Mount
  • Urethral Syringe
  • Whetstone
  • Writing Slate

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Contact Information

Queen Anne's Revenge 
Conservation Lab

ECU West Research Campus
1157 VOA Site C Road
Greenville, N.C. 27834

QAR@ncdcr.gov
(252) 744-6721

Project Partners

North Carolina Department of Natural and Cultural Resources

Intersal, Inc.Nautilus Productions

 

Blackbeard's Queen Anne's Revenge Shipwreck Project

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