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Scientific American, Vol. 47, No. 11 (September 1882) (1882)

leaf 3

An illustration from Scientific American, Vol. 47, No. 11 (September 1882), 1882, leaf 3
VERNIER MICROMETER CALIPERS- a graduated disk, brazed on the sleeve and centered uponthe axis, a. According as the divisions on this disk, whichare numbered from 0 to 100, are brought opposite an index,i, the distance from the surface of the sleeve to that of themovable arm Is either equal to the…

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