Pleasant Plains Historical Society In an effort to re-connect to its historical roots, the Pleasant Plains Historical Society was created by mayor Jim Verkuilan and his friends in 2009. Its stated purpose is âTo acquire, restore and maintain historical sites surrounding the community.â
Bumping a Lock. 1  1. Insert the key into the lock. Fit the key into the lock. 2  2. Begin turning the key. Try turning the key in the unlock direction (usually counterclockwise). 3  3. Strike the back of the key with a blunt object.
Scroll down for video. German engineers have revealed designs to make 3D-printed 'bump keys' (shown). These devices can be used to break into popular pin tumbler design locks. In a video a lock is opened by a bump key and a hammer in seconds. To make the key all that is needed is a picture of the lock and pin positions. Later this month at an event known as LockCon 2014 German engineer Christian Holler will present his and Jos Weyers' bump key design.