Gill's Measuring Machine for Micrometer

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“Sir David Gill devised a measuring machine which combines the rapidity of the glass—scale micrometer with the accuracy of the spider—line micrometer and simplifies the reductions of the observations at the same time.” —Encyclopaedia Brittannica, 1910

Keywords

telescope, Micrometer, adjusting telescope, Telescope Micrometer, Gill's Measuring Machine for Micrometer, Micrometer Measuring Device

Galleries

Miscellaneous Industrial Machinery

Source

Encyclopaedia Britannica (11th ed., vol. 18) (New York, NY: The Encyclopaedia Britannica Company, 1910)

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