Abstract: A laundry machine having a frame, a motor, transmission and driven parts suspended as a unit from the frame by a plurality of suspension means each having a rod, an upper and a lower two part coupling, each of which permits free relative angular movement between its parts within a desired range of movements is provided with restraining means between the unit and the frame, the restraining means restraining twisting of the unit relative to said frame beyond predetermined limits.

Abstract: A reflector antenna comprising a reflector system, and a feed system, for instance a log-periodic feed system, the phase center of which moves with frequency, for illuminating the reflector system to produce a substantially focussed antenna beam. To compensate for frequency variations in the position of the phase-center of the feed system, the reflector system includes a frequency dependent reflector the effective surface of reflection of which varies with frequency to cause the focus of the reflector system to move with the phase-center of the feed system. A number of different forms of suitable frequency dependent reflectors are described, employing composite arrangements frequency selective mesh or grid reflector elements, or arrays of reflecting horns or wedges.