Abstract
THE question of standardising screw threads and limit gauges has long received the careful attention of engineers, and in Great Britain considerable advantage has accrued from the publication of an interim report (No. 20, April, 1905) of the Engineering Standards Committee, dealing with the form and pitches of screw-threads most suitable for general engineering purposes. Having regard to the fact that the Whitworth thread is in general use throughout the country, the committee does not recommend any departure from this form of thread. The existing Whitworth series of pitches for screws from ¼ inch to 6 inches in diameter does not, however, satisfy all requirements, and the committee has drawn up tables of standard sizes which will doubtless meet with general adoption. For all sizes of screw threads below ¼ inch in diameter, the committee recommends the adoption of the pitches, sizes, and form of thread proposed by the British Association Small Screw Gauge Committee in 1884.
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The Standardisation of Screws . Nature 72, 431 (1905). https://doi.org/10.1038/072431a0
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DOI: https://doi.org/10.1038/072431a0