Beehive coke ovens were called that because they were built in a beehive-like hemispherical shape, and then covered with earth. Cross section of a Hand-drawn Beehive Coke Oven. The Beehive Ovens were built in banks of ovens, called a battery, with a strong retaining wall in front, and then covered with earth.
One such technique is called âbumping.â Lock bumping, also referred to as key bumping is an attack technique using specially cut keys, known as bump keys, that can defeat conventional pin and tumbler door locks.
Bumping is the newly discovered method of pin manipulation with in locks. It is extremely effective! This new method is turning the world of security upside down. Locks, which would normally need to be drilled to access, can now be bumped open in seconds. To the locksmith this means you can access and save many beautiful cylinders for your customers. A locksmith, repossessor, law enforcement officer, military professional, or other well qualified professional will find these keys to be one of the most effective tools in their tool collection.