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.
More Info. Controlling vehicle speed with a speed bump or speed hump is the most effective method to improve the safety of a parking lot, driveway or private road. Choose from our large IN STOCK selection of rubber speed bumps or plastic speed bumps.