A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)
Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 84
ioiUm. f>jh?uh»l hv r/),^mnA Tenn,73rJ,mp.tide, AprilJ.JgZS. J. Sli-ury sculp . LOCKS. 71 unless the sliders are also moved by the key, thatthe notches cut in them may coincide with thegroove cut round the barrel, and then it can turnfreely round. The key, having thus relieved thebarrel by being…
Encyclopedias and dictionaries · Aeronautics
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