Abstract: In a puzzle toy having a plurality of push buttons, a mechanism for latching push buttons to a rotor, where rotation of the rotor sets a predetermined order for pushing buttons to solve the puzzle, and a chance mechanism for rotating the rotor, an improvement that partitions a rotor shaft and the rotor into two segments that rotate independently, responsive to separate weights affixed to each shaft segment. A reset mechanism operates by shifting the rotor along the shaft axis.

Abstract: In a puzzle toy having a plurality of push buttons, a mechanism for latching push buttons to a rotor, where rotation of the rotor sets a predetermined order for pushing buttons to solve the puzzle, and a chance mechanism for rotating the rotor, an improvement that partitions a rotor shaft and the rotor into two segments that rotate independently, responsive to separate weights affixed to each shaft segment. A reset mechanism operates by shifting the rotor along the shaft axis.

Abstract: A method is disclosed for constructing non-seamed stone corners for use on outside edges formed by joining thin stone walls at right angles. Thin stone is used to lay the field of the walls. Then a building stone is oriented and fed down a chute, having perpendicular sides, through two stone cutting saws at right angles to one another, where the distance between the saw blades and the sides of the chute correspond to the thickness of the respective thin stone walls, and where the cutting edges of the saw blades have a clearance between them of about one-eighth of an inch. A residual piece is removed from the cut building stone, leaving a corner stone. These corner stones are laid on the corner formed by the right angle joint between the walls, giving the illusion of a thick building stone wall with nearly the low cost and easy laying of thin stone. Where the residual piece is large enough, it is used to cut a second corner stone in the same manner.