James Cocker's patent decimal gauge (micrometer) from his or

Made:
earliest 1857
modifier:
Joseph Whitworth and Company Limited

James Cocker's patent decimal gauge (micrometer) from his original patent of 1857 no. 1680, modified by Messrs. Joseph Whitworth and Co. to gauge 0 to 2 inches reading to thousandths of an inch (Whitworth Works no. 119)

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Science Museum: Making the Modern World Gallery

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Details

Category:
Industrial Metrology
Object Number:
1931-328
type:
micrometer
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
credit:
British Railways Board Records Office; London Midland & Scottish Railway Co.
status:
Permanent collection

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