lever tumbler造句

• The lever tumbler lock was greatly improved by Jeremiah Chubb in 1818.
• These lock shells were stamped out of flat metal stock, filled with lever tumblers, and then riveted together.
• The "'lever tumbler lock "'uses a set of levers to prevent the bolt from moving in the lock.
• The lever tumbler lock, which uses a set of levers to prevent the bolt from moving in the lock, was perfected by Robert Barron in 1778.
• Examples of integrated locking mechanisms are rotating disks ( found in " Scandinavian " style padlocks where a disk rotated by the key enters a notch cut into the shackle to block it from moving ) or lever tumblers ( where a portion of the bolt that secures the shackle enters the tumblers when the correct key is turned in the lock ).