Abstract: A locking mechanism comprising a lock housing mounted in a hinged unit or the like and a bolt mounted to a fixture. The housing has a hole therein for receiving an end of the bolt. The bolt end includes a locking aperture for receiving a shackle of a padlock. The padlock locks around the locking aperture and is then positioned inside housing 20 to protect the padlock from being cut or broken. The novel design of the locking aperture allows the padlock to be selectively positioned in one of three positions, and thus fit within a narrow cavity not much large than the size of the padlock.

Abstract: An open ended cylindrical casing is provided with a pair of semicircular blades rotatably mounted to the lower open end of the casing so that the blades may be rotated from a digging position where they project downward from the lower end of the casing to a flat position, substantially forming a bottom to the lower end of the casing. To excavate a cylindrical hole the casing is dropped with the blades in the projecting position into the ground causing the blades to dig in a shovel-like manner. By rotating the blades upward substrate is lifted into the casing, and the casing is pulled deeper into the substrate. Lifting the casing out of the hole, the blades act as a bottom to the casing carrying dirt within the casing.