Abstract: An exercise apparatus comprises an elongate hollow post formed from three interconnectable tube sections. A carriage is mounted slidably to the post, and a pair of handlebars extend transversely from the carriage. A pair of footrests is arranged to be selectably mounted at either end of the post for providing support against movement of the carriage, and a plurality of resistance elements such as rubber bands extend between the carriage and an anchor formation within one of the tube sections. The rubber bands pass around a pulley formation at one end of the post, and selector means are provided on the carriage for allowing a preselected number of the elastic bands to be engaged for varying the overall resistance of the carriage as it is displaced along the post. In use, the footrests are pivotably mounted to a selected end of the post so as to allow the post to pivot freely in a vertical plane when supported on the footrests.

Abstract: A transformer comprising a stack of sheet metal laminations; an insulating plastic bobbin on which a primary coil is wound; an insulating plastic bobbin on which the secondary coil is wound; and two interengaging insulating plastic covers which enclose the primary coil and provide additional insulation between the primary coil and the laminations and between the primary and secondary coils, while also providing a strain relief for the primary leads from the primary coil. The plastic components are formed to provide two mms of insulation between the primary and secondary coils, and between the primary coil and the laminations. The plastic components are arranged to provide at least 10 mms of "creepage" distance between primary and secondary coils and at least 8mms between the primary coil and the laminations. The insulation provided is sufficient to permit the steel laminations to be mounted directly on the metal frame of an appliance.