moving member 64 the disk 22 is fixed to a shaft 90 which is journalled in the upper base 20b the shaft 90 passes through the surface 32 and includes a pinion 92 fixed to the shaft 90 and located below the surface 32 both the pinion 92 and the disk 22 are fixed to the shaft 90 such that rotation of the pinion 92 is transferred to the disk 22 the pinion 92 meshes with the spur gear 88 because of this ultimately the disk 22 is rotated in response to rotation of the second moving member 64 the clanger 26 is fixed to a shaft 94 as seen in fig5 the shaft 94 passes through the surface 32 on the upper base 20b located on the shaft 94 below the surface 32 is a lever 96 the lever 96 is fixed to the shaft 94 such that movement of the lever 96 is transferred via the shaft 94 to the clanger 26 attached to one end of the lever 96 is a spring 98 the spring 98 stretches between the lever 96 and a small peg 100 which extends downwardly from the bottom of the surface 32 the spring 98 has a small amount of tension incorporated therein such that the other end of the lever 96 is biased towards and meshes with the ratchet teeth 76 as the second moving member 64 rotates each of the ratchet teeth 76 in turn contact the lever 96 to rotate the lever 96 in doing so this stretches the spring 98 and pulls the clanger 26 away from the bell 24 as seen in fig5 when the.