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Description: |
| I denominate my device the " Universal Micrometer," as it is adapted to the varying uses of watch-makers, machinists, and others; and by it the diameter of a wire, arbor, pinion wheel, or similar article can be measured; the distance from one center or pivot to another measured, the width of gear-teeth and the intermediate spaces, the thickness of a watch glass or case, or the convexity of the same, or the thickness of a lens or similar article can be determined; gearing can be mounted, and the distance between centers measured; and the micrometer becomes a very delicate depthing tool, and the distance can be marked by the micrometer on a plate as well as being denoted in figures. |
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