| 摘要 |
<p>A key operable plug mechanism having a body, a side bar movable to engage the body, a plurality of tumblers, a cylinder for said tumblers, each of said tumblers having a key engaging surface and a side bar accommodating notch the arrangement being such that on insertion of an appropriate key and rotation of the same, the key engaging surfaces are picked-up to align the notches of the tumblers and such that the rotary motion of the key is transmitted to said side bar through said cylinder.</p> |
