Chad (paper) device which will not punch a complete circle in the tape but, instead, will only cut approximately three-quarters of the circumference of a circle ... thereby leaving a movable, or hinged, lid of paper in the tape." In the "New Hacker's Dictionary", two unattributed and likely humorous derivations for "chad" are offered, a back-formation from a personal name "Chadless" and an acronym for "Card Hole Aggregate Debris". Other etymologies claim derivation from the Scottish name for river gravel, "chad", or the British slang for louse, "chat". When a chad is not fully detached, it is described by various terms corresponding
Charles B. Brooks for his city. Brooks also received a third patent for what he called a “ticket punch” on October 31, 1893 (US Patent #507,672), an early example of a paper punch, unique for its time because unlike hole punchers of today, his had a built-in receptacle to catch the round pieces of waste paper there and prevent littering. Charles B. Brooks Charles B. Brooks (1865-?) was an African-American inventor. Born in Virginia in 1865, by the 1890s he was a resident of Newark, New Jersey. Besides inventing Brooks was also a porter for the Pullman Palace Car Company. Unlike other sweepers