A New Lock=nut Washer.
A new lock-nut washer is being introduced byMessrs. H. D. Woolley & Co., of 2$ and 29, Coleman street, London, E.C. This has a V-shaped projection diagonally across it, which fits into a recess in the bottom of the nut, the recess being made exactly to fit the collar. By this means, when the nut is being tightened, the washer also turns with it, and since the nut cannot move unless the washer moves, it will, it is said, always remain tight.
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https://paperspast.natlib.govt.nz/periodicals/P19060102.2.15.3
Bibliographic details
Progress, Volume I, Issue 3, 2 January 1906, Page 51
Word Count
85A New Lock=nut Washer. Progress, Volume I, Issue 3, 2 January 1906, Page 51
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