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'Patent Self Acting Drilling and Boring Machine', 1833-1857.

Gladwin, G

'Patent Self Acting Drilling and Boring Machine', 1833-1857.
3 8 c m
actual image size: 32cm x 30cm


Engraving by G Gladwin after a drawing produced by J Whitworth & Co, showing front and side elevations of a drilling machine made by J Whitworth and Co, Manchester. Joseph Whitworth (1803-1887) established a toolmaking busines in Openshaw, Greater Manchester in 1833, which soon acquired a reputation for high standards of workmanship. Amongst Whitworth's achievements were the devising of a system of precision measurement which, using a precision flat plane and measuring screw, was accurate to a millionth of an inch, and the development of a standard system for screw threads. The latter, which still bears Whitworth's name, was adopted by Britain's railway companies and later became established as a British Standard.

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