Attrib. or syntactical use of the name of Joseph Bramah (1748–1814), designating machines, etc. invented by him, as Bramah-key (also short Bramah) -lock, -pen; Bramah’s press, a hydraulic machine constructed to produce enormous pressure.

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1836.  Dickens, Sk. Boz, ii. (1850), 166. Testing the influence of their patent Bramahs over the street-door locks to which they belonged.

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1875.  Ure, Dict. Arts, III. 140. The Bramah lock has been long celebrated.

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1846.  G. Wright, Cream Sci. Knowl., 55. Bramah’s press … is on the principle of the hydrostatic bellows.

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