Abstract: In a toy target, target figures are rotated about a horizontal axis at a controlled speed by a gravitationally driven escapement mechanism. The figures are carried by wire elements for pivotal movement between "upright" and "knocked down" positions, and devices which attach the figures to the elements are arranged to return the figures automatically to their upright positions after they have been knocked down.

Abstract: A magnetic switch assembly including a reed switch is biased by moving the magnetic axis of a permanent magnet with respect to the axis of the reed switch. In one embodiment, the magnet is a disc magnet which is provided with diametrically opposite poles the magnetic axis of the magnet being rotated in a plane spaced from the reed switch. In a further embodiment the magnet is a bar magnet disposed with its magnetic axis parallel to and aligned with the axis of the reed switch. A screw-threaded member received in a bore in the magnet is rotated to move the magnet towards and away from the reed switch to vary the magnetic biasing conditions, guide means are disclosed abutting the magnet so as to maintain the disposition of the magnet with respect to the reed switch during movement of the magnet.

Abstract: A member of a non-return valve having an axial blind bore defining an inlet, a cylindrical sealing surface recessed between axially spaced radial shoulders, and one or more radial passageways in the region of the sealing surface communicating with the bore and sealed against return fluid flow by an elastomeric sleeve carried by the sealing surface, is constructed in two parts of synthetic plastics material which snap fit together, with the shoulders being formed one on each part.