A lens barrel portion has one single lens barrel.

A barrel-type permanent-magnet coupler with adjustable permanent-magnetic torque has a barrel-type or barrel-turntable complex type configuration.

The rotatable discs (40) operate to prevent a plug of the cylinder lock from rotating unless a correct squiggle key (50) is inserted into a keyway in the plug.

The barrel shifter (S) does the appropriate shifting.

A barrel type transmission shaft permanent-magnet coupler for adjusting electromagnetic torque is a rotary barrel type or turntable and rotary barrel compound structure.

An improved axial pin tumbler lock assembly (10) is disclosed.

An additional security device for cylinderlocks and similar ones, does not allow the activation of the lock to perform its functions, if the key is not completely inserted into the keyhole.

The cylinder lock may also include conventional pin tumblers.

The invention also relates to a key to the cylinder lock.

The barrel engine includes a plurality of piston assemblies.

When linear forces are used the tumbler or plug (13) may be indexed to employ a driver pin (15u) as a plug lock.

The present invention relates to an improvement in non destructible cylinder locks.

A key (137) is entered into the cylinder lock (112).

As shown in the figure, an electrically operable cylinder lock device includes a body (10) with a bore housing a rotatable barrel (11), having a key slot.

Disclosed is a cylinder lock device for vehicle wherein an inner cylinder is inserted into a cylinder hole so that push operation is requested at the time of turning between off position and lock position.