Bramah lock

noun
Bram·​ah lock | \ ˈbramə-, -ämə-, -ȧmə-\

Definition of Bramah lock

: a lock in which the tumblers are thin flat notched bars receiving endwise movement from the key instead of the swinging movement of the tumblers of an ordinary lock

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History and Etymology for Bramah lock

after Joseph Bramah †1814 English engineer, its inventor

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