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Person

Henry Maudslay

A portrait depicts a man with a beard and formal attire, wearing a brown vest over a white shirt with ruffled collar, set against a dark background.

English engineer (1771–1831) whose Lambeth workshop trained a generation of precision toolmakers, including Joseph Whitworth, James Nasmyth and Richard Roberts. Maudslay built the first industrially useful screw-cutting lathe and popularised the bench micrometer he called the Lord Chancellor. His insistence that a true flat surface could be generated by scraping three plates against each other became foundational to mechanical engineering.

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