Abstract: Removable tap covers for dancing shoes which can quickly and easily be placed on the taps to prevent accumulation of dirt and grime in the taps, yet which can quickly and easily be removed to allow the full effect of the taps for dancing.

Abstract: A code key cutting apparatus for cutting keys according to the majority of key-lock manufacturers codes as to the location, depth and shape of notches cut into a key blank. The apparatus includes a notch location mechanism and a depth location mechanism, each having a carriage coupled to an indexing dial to indicate the extent of travel of the carriage. The indexing dial is positionable without moving the carriage thus enabling the indexing mechanism to be initialized according to any lock manufacture specifications. In addition, the apparatus includes a notch tracing mechanism to cut a variety of notch shapes into a key blank without changing the cutting blade.

Abstract: An apparatus for cutting a key blank, including a clamp for securing part of the key blank between the cutting edge of a punch and an aperture in a mating die. The die includes a surface for reinforcing part of the key blank when the key blank is in contact with the cutting edge of the punch. The apparatus further includes a resilient element for biasing the key blank away from the reinforcing surface and toward the punch when the key blank is secured between the cutting edge of the punch and the aperture.

Abstract: A padlock having a body in which a removable lock cylinder is fastened by a removable cylinder guard plate is provided with retainer means for optionally retaining a lock suspension chain, the suspension chain including links having link apertures and the retainer means including a slot in the guard cylinder plate which receives an end link with a detent of the retainer means located in the link aperture, the assembly and fastening of the cylinder guard to the padlock body trapping and retaining the optionally assembled suspension chain to the padlock.

Abstract: Actuation of an electrically operated lock is controlled by an electronic permutation circuit including an array of code entry push-button switches disposed for operation at the entrance to a secured area and a plurality of code selector switches mounted inside the secured area for setting a predetermined code sequence. If the correct code sequence is entered, corresponding to the setting of the code selector switches, an electronic counter is sequentially advanced to a selected terminal state determined by a code length selector switch which is connected to and for operating the electrically controlled lock. The time interval during which the lock is electrically actuated may be selected by a latch time selector switch mounted along with the code selector switches inside the secured area.