pin tumbler


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pin tumbler

A lock mechanism having a series of small cylindrical pins which form obstacles to rotation of the locking mechanism unless actuated by the proper key.
References in periodicals archive ?
All common pin tumbler cylinders can be picked in this manner.
The finest among them, be they rim, mortice, or (eventually) knob locks, were controlled by pin tumbler cylinders bearing names such as Corbin, Russwin, Ilco, Schlage, Sargent, and Yale.
For example, common pin tumbler cylinders in hotels are today being replaced with card keys with magnetic strips, which provide better key control.
Typically, access to the lock bolt is guarded by a key cylinder subassembly containing pin tumblers.
Nowadays, when keys are lost, locksmiths routinely pick Yale-type conventional cylinder locks with common pin tumblers.
patented the original Medeco lock cylinder, which contains a sidebar mechanism that operates in conjunction with rotating pin tumblers and a skewbitted key, according to Ann McCrady, assistant product manager for the company.
Its key positions 11 tumblers: 6 conventional pin tumblers in line above the key slot and a row of 5 special tumblers on the left side of the key slot.
In addition to six conventional pin tumblers, the Primus uses five secondary pins, which are elevated and rotated by special bittings on the right side of the key.
Mortise cylinder locks have a pin tumbler locking mechanism in a cylinder.
Laminated, pin tumbler padlocks provide maximum security for valuables.
Four-pin-tumbler mechanisms provide substantial security for most applications; and padlocks with five or more pin tumblers offer increased security against picking and are probably more secure than combination locks.