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.
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 locks. Kwikset offers the high-security ANSI Grade 1 980 Deadbolt which features SmartKeyâ¢ technology and BumpGuardâ¢.