Word: jackscrew
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...ordered an "urgent airworthiness directive" for all 1,100 MD-80-series jets similar to the one that went down en route from Mexico to San Francisco. The move follows a deep-ocean search effort that pulled damaged pieces of the MD-83's horizontal stabilizer, known as a jackscrew, from the water - and the discovery, during voluntary inspections of the rest of Alaska Airlines' MD-80s, of similar problems on several planes...
...burglar serving a life term in the Texas State Prison. "When puzzle locks [i.e., combination locks] were first used a century ago," said Mosler, "crooks devised the 'drag,' a powerful screw to crush the walls around the lock. When the walls were strengthened, they took to the jackscrew to force wedges between the door and the jamb. When safe doors were built with bolts that slid into the jamb on all four sides, safecrackers began blowing gunpowder around the door with an air pump. Now they use nitroglycerin, acetylene torches and power drills...
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