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Scientific American, Vol. 23, No. 13 (September 1870) (1870)

leaf 7

An illustration from Scientific American, Vol. 23, No. 13 (September 1870), 1870, leaf 7
can be applied to locking nuts on common bolts al- ready in use, without any alteration in either the bolt or the nut, except a small slot cut in the bolt, and it allows oiling or greasing of the bolt, so that the nut cannot rust fast, without in the least lessening the security of the locking. By… … Military Antiquities. It appears that a patent was granted by take one quarter of a pound of quicklime. Rinse well in Charles I., who seems to have indifferently profited by it him- so as to secure them perfectly. The wrench is only needed in water, afterwards in weak hydrochloric acid (2° B.) and…

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